From baa45ac10603a0212578007144e97fe1f7dc4537 Mon Sep 17 00:00:00 2001
From: natreex <natreex@outlook.com>
Date: Mon, 17 Nov 2025 20:14:22 -0500
Subject: [PATCH] Add `Content`, `Model`, and `Story` models with text
 processing and AI model configuration utilities

- Implement `Content` model for converting Tiptap raw data into HTML and plain text.
- Add `Model` for storing and managing AI model configurations with pricing and metadata.
- Introduce `Story` model to handle verbal styles and linguistic properties for diverse narrative structures.
- Update `book.repository.ts` to refine `updateBookBasicInformation` and `insertNewPlotPoint` methods, removing unused parameters and optimizing queries.
---
 electron/database/models/Chapter.ts           | 327 +++++++
 electron/database/models/Character.ts         | 295 ++++++
 electron/database/models/Content.ts           | 160 ++++
 electron/database/models/EpubStyle.ts         |  11 +
 electron/database/models/Location.ts          | 252 +++++
 electron/database/models/Model.ts             | 253 +++++
 electron/database/models/Story.ts             | 712 ++++++++++++++
 electron/database/models/User.ts              | 885 ++++++++++++++++++
 .../database/repositories/book.repository.ts  |  10 +-
 .../repositories/chapter.repository.ts        |   8 +-
 10 files changed, 2904 insertions(+), 9 deletions(-)
 create mode 100644 electron/database/models/Chapter.ts
 create mode 100644 electron/database/models/Character.ts
 create mode 100755 electron/database/models/Content.ts
 create mode 100755 electron/database/models/EpubStyle.ts
 create mode 100644 electron/database/models/Location.ts
 create mode 100644 electron/database/models/Model.ts
 create mode 100755 electron/database/models/Story.ts
 create mode 100644 electron/database/models/User.ts

diff --git a/electron/database/models/Chapter.ts b/electron/database/models/Chapter.ts
new file mode 100644
index 0000000..c3bce67
--- /dev/null
+++ b/electron/database/models/Chapter.ts
@@ -0,0 +1,327 @@
+import StarterKit from '@tiptap/starter-kit'
+import TextAlign from '@tiptap/extension-text-align'
+import ChapterRepo, {
+    ActChapterQuery,
+    ChapterQueryResult,
+    ChapterContentQueryResult,
+    LastChapterResult,
+    CompanionContentQueryResult,
+    ChapterStoryQueryResult,
+    ContentQueryResult
+} from "@/electron/database/repositories/chapter.repository";
+import System from "../System";
+import {getUserEncryptionKey} from "../keyManager";
+import { generateHTML } from "@tiptap/react";
+
+export interface ChapterContent {
+    version: number;
+    content: string;
+    wordsCount: number;
+}
+
+export interface ChapterContentData extends ChapterContent {
+    title: string;
+    chapterOrder: number;
+}
+
+export interface ChapterProps {
+    chapterId: string;
+    title: string;
+    chapterOrder: number;
+    chapterContent?: ChapterContent
+}
+
+export interface ActChapter {
+    chapterInfoId: number;
+    chapterId: string;
+    title: string;
+    chapterOrder: number;
+    actId: number;
+    incidentId: string | null;
+    plotPointId: string | null;
+    summary: string;
+    goal: string;
+}
+
+export interface CompanionContent {
+    version: number;
+    content: string;
+    wordsCount: number;
+}
+
+export interface ActStory {
+    actId: number;
+    summary: string;
+    chapterSummary: string;
+    chapterGoal: string;
+    incidents: IncidentStory[];
+    plotPoints: PlotPointStory[];
+}
+
+export interface IncidentStory {
+    incidentTitle: string;
+    incidentSummary: string;
+    chapterSummary: string;
+    chapterGoal: string;
+}
+
+export interface PlotPointStory {
+    plotTitle: string;
+    plotSummary: string;
+    chapterSummary: string;
+    chapterGoal: string;
+}
+
+export default class Chapter {
+    public static getAllChaptersFromABook(userId: string, bookId: string, lang: 'fr' | 'en' = 'fr'): ChapterProps[] {
+        const chapters: ChapterQueryResult[] = ChapterRepo.fetchAllChapterFromABook(userId, bookId, lang);
+        let returnChapters: ChapterProps[] = [];
+        const userKey: string = getUserEncryptionKey(userId);
+        for (const chapter of chapters) {
+            const title: string = System.decryptDataWithUserKey(chapter.title, userKey);
+            returnChapters.push({
+                chapterId: chapter.chapter_id,
+                title: title,
+                chapterOrder: chapter.chapter_order
+            });
+        }
+        return returnChapters;
+    }
+
+    public static getAllChapterFromActs(userId: string, bookId: string, lang: 'fr' | 'en' = 'fr'): ActChapter[] {
+        const query: ActChapterQuery[] = ChapterRepo.fetchAllChapterForActs(userId, bookId, lang);
+        let chapters: ActChapter[] = [];
+        let tempChapter: { id: string, title: string }[] = []
+        const userKey: string = getUserEncryptionKey(userId);
+        if (query.length > 0) {
+            for (const chapter of query) {
+                let decryptTitle: string = '';
+                const newTitleId: number = tempChapter.findIndex((temp: { id: string, title: string }) => temp.id === chapter.chapter_id);
+                if (newTitleId > -1) {
+                    decryptTitle = tempChapter[newTitleId]?.title ?? ''
+                } else {
+                    decryptTitle = System.decryptDataWithUserKey(chapter.title, userKey);
+                    tempChapter.push({id: chapter.chapter_id, title: decryptTitle});
+                }
+                chapters.push({
+                    chapterId: chapter.chapter_id,
+                    title: decryptTitle,
+                    actId: chapter.act_id,
+                    chapterInfoId: chapter.chapter_info_id,
+                    chapterOrder: chapter.chapter_order,
+                    goal: chapter.goal ? System.decryptDataWithUserKey(chapter.goal, userKey) : '',
+                    summary: chapter.summary ? System.decryptDataWithUserKey(chapter.summary, userKey) : '',
+                    incidentId: chapter.incident_id,
+                    plotPointId: chapter.plot_point_id
+                })
+            }
+            return chapters;
+        } else {
+            return []
+        }
+    }
+
+    public static getWholeChapter(userId: string, chapterId: string, version: number, bookId?: string, lang: 'fr' | 'en' = 'fr'): ChapterProps {
+        const chapter: ChapterContentQueryResult = ChapterRepo.fetchWholeChapter(userId, chapterId, version, lang);
+        const userKey: string = getUserEncryptionKey(userId);
+
+        if (bookId) {
+            ChapterRepo.updateLastChapterRecord(userId, bookId, chapterId, version, lang);
+        }
+        return {
+            chapterId: chapter.chapter_id,
+            title: System.decryptDataWithUserKey(chapter.title, userKey),
+            chapterOrder: chapter.chapter_order,
+            chapterContent: {
+                content: chapter.content ? System.decryptDataWithUserKey(chapter.content, userKey) : '',
+                version: version,
+                wordsCount: chapter.words_count
+            }
+        };
+    }
+
+    public static saveChapterContent(userId: string, chapterId: string, version: number, content: JSON, wordsCount: number, currentTime: number, lang: 'fr' | 'en' = 'fr'): boolean {
+        const userKey: string = getUserEncryptionKey(userId);
+        const encryptContent: string = System.encryptDataWithUserKey(JSON.stringify(content), userKey);
+        /*if (version === 2){
+            const QS = new AI();
+            const prompt:string = System.htmlToText(Chapter.tipTapToHtml(content));
+            const response:string = await QS.request(prompt,'summary-chapter');
+            console.log(response);
+        }*/
+        return ChapterRepo.updateChapterContent(userId, chapterId, version, encryptContent, wordsCount, lang);
+    }
+
+    public static getLastChapter(userId: string, bookId: string, lang: 'fr' | 'en' = 'fr'): ChapterProps | null {
+        const lastChapter: LastChapterResult | null = ChapterRepo.fetchLastChapter(userId, bookId, lang);
+        if (lastChapter) {
+            return Chapter.getWholeChapter(userId, lastChapter.chapter_id, lastChapter.version, bookId, lang);
+        }
+        const chapter: ChapterContentQueryResult[] = ChapterRepo.fetchLastChapterContent(userId, bookId, lang);
+        if (chapter.length === 0) {
+            return null
+        }
+        const chapterData: ChapterContentQueryResult = chapter[0];
+        const userKey: string = getUserEncryptionKey(userId);
+        return {
+            chapterId: chapterData.chapter_id,
+            title: chapterData.title ? System.decryptDataWithUserKey(chapterData.title, userKey) : '',
+            chapterOrder: chapterData.chapter_order,
+            chapterContent: {
+                content: chapterData.content ? System.decryptDataWithUserKey(chapterData.content, userKey) : '',
+                version: chapterData.version,
+                wordsCount: chapterData.words_count
+            }
+        };
+    }
+
+    public static addChapter(userId: string, bookId: string, title: string, wordsCount: number, chapterOrder: number, lang: 'fr' | 'en' = 'fr'): string {
+        const hashedTitle: string = System.hashElement(title);
+        const userKey: string = getUserEncryptionKey(userId);
+        const encryptedTitle: string = System.encryptDataWithUserKey(title, userKey);
+
+        if (ChapterRepo.checkNameDuplication(userId, bookId, hashedTitle, lang)) {
+            throw new Error(lang === 'fr' ? `Ce nom de chapitre existe déjà.` : `This chapter name already exists.`);
+        }
+        const chapterId: string = System.createUniqueId();
+        return ChapterRepo.insertChapter(chapterId, userId, bookId, encryptedTitle, hashedTitle, wordsCount, chapterOrder, lang);
+    }
+
+    public static removeChapter(userId: string, chapterId: string, lang: 'fr' | 'en' = 'fr'): boolean {
+        return ChapterRepo.deleteChapter(userId, chapterId, lang);
+    }
+
+    public static addChapterInformation(userId: string, chapterId: string, actId: number, bookId: string, plotId: string | null, incidentId: string | null, lang: 'fr' | 'en' = 'fr'): string {
+        const chapterInfoId: string = System.createUniqueId();
+        return ChapterRepo.insertChapterInformation(chapterInfoId, userId, chapterId, actId, bookId, plotId, incidentId, lang);
+    }
+
+    public static updateChapter(userId: string, chapterId: string, title: string, chapterOrder: number, lang: 'fr' | 'en' = 'fr'): boolean {
+        const hashedTitle: string = System.hashElement(title);
+        const userKey: string = getUserEncryptionKey(userId);
+        const encryptedTitle: string = System.encryptDataWithUserKey(title, userKey);
+        return ChapterRepo.updateChapter(userId, chapterId, encryptedTitle, hashedTitle, chapterOrder, lang);
+    }
+
+    static updateChapterInfos(chapters: ActChapter[], userId: string, actId: number, bookId: string, incidentId: string | null, plotId: string | null, meta: string, lang: 'fr' | 'en' = 'fr') {
+        const userKey: string = getUserEncryptionKey(userId);
+        for (const chapter of chapters) {
+            const summary: string = chapter.summary ? System.encryptDataWithUserKey(chapter.summary, userKey) : '';
+            const goal: string = chapter.goal ? System.encryptDataWithUserKey(chapter.goal, userKey) : '';
+            const chapterId: string = chapter.chapterId;
+            ChapterRepo.updateChapterInfos(userId, chapterId, actId, bookId, incidentId, plotId, summary, goal, meta, lang);
+        }
+    }
+
+    static getCompanionContent(userId: string, chapterId: string, version: number, lang: 'fr' | 'en' = 'fr'): CompanionContent {
+        const versionNum: number = version - 1;
+        const chapterResponse: CompanionContentQueryResult[] = ChapterRepo.fetchCompanionContent(userId, chapterId, versionNum, lang);
+        if (chapterResponse.length === 0) {
+            return {
+                version: version,
+                content: '',
+                wordsCount: 0
+            };
+        }
+        const chapter: CompanionContentQueryResult = chapterResponse[0];
+        const userKey: string = getUserEncryptionKey(userId);
+        return {
+            version: chapter.version,
+            content: chapter.content ? System.decryptDataWithUserKey(chapter.content, userKey) : '',
+            wordsCount: chapter.words_count
+        };
+    }
+
+    static getChapterStory(userId: string, chapterId: string, lang: 'fr' | 'en' = 'fr'): ActStory[] {
+        const stories: ChapterStoryQueryResult[] = ChapterRepo.fetchChapterStory(userId, chapterId, lang);
+        const actStories: Record<number, ActStory> = {};
+        const userKey: string = getUserEncryptionKey(userId);
+
+        for (const story of stories) {
+            const actId: number = story.act_id;
+
+            if (!actStories[actId]) {
+                actStories[actId] = {
+                    actId: actId,
+                    summary: story.summary ? System.decryptDataWithUserKey(story.summary, userKey) : '',
+                    chapterSummary: story.chapter_summary ? System.decryptDataWithUserKey(story.chapter_summary, userKey) : '',
+                    chapterGoal: story.chapter_goal ? System.decryptDataWithUserKey(story.chapter_goal, userKey) : '',
+                    incidents: [],
+                    plotPoints: []
+                };
+            }
+
+            if (story.incident_id) {
+                const incidentTitle = story.incident_title ? System.decryptDataWithUserKey(story.incident_title, userKey) : '';
+                const incidentSummary = story.incident_summary ? System.decryptDataWithUserKey(story.incident_summary, userKey) : '';
+
+                const incidentExists = actStories[actId].incidents.some(
+                    (incident) => incident.incidentTitle === incidentTitle && incident.incidentSummary === incidentSummary
+                );
+
+                if (!incidentExists) {
+                    actStories[actId].incidents.push({
+                        incidentTitle: incidentTitle,
+                        incidentSummary: incidentSummary,
+                        chapterSummary: story.chapter_summary ? System.decryptDataWithUserKey(story.chapter_summary, userKey) : '',
+                        chapterGoal: story.chapter_goal ? System.decryptDataWithUserKey(story.chapter_goal, userKey) : ''
+                    });
+                }
+            }
+
+            if (story.plot_point_id) {
+                const plotTitle = story.plot_title ? System.decryptDataWithUserKey(story.plot_title, userKey) : '';
+                const plotSummary = story.plot_summary ? System.decryptDataWithUserKey(story.plot_summary, userKey) : '';
+
+                const plotPointExists = actStories[actId].plotPoints.some(
+                    (plotPoint) => plotPoint.plotTitle === plotTitle && plotPoint.plotSummary === plotSummary
+                );
+
+                if (!plotPointExists) {
+                    actStories[actId].plotPoints.push({
+                        plotTitle: plotTitle,
+                        plotSummary: plotSummary,
+                        chapterSummary: story.chapter_summary ? System.decryptDataWithUserKey(story.chapter_summary, userKey) : '',
+                        chapterGoal: story.chapter_goal ? System.decryptDataWithUserKey(story.chapter_goal, userKey) : ''
+                    });
+                }
+            }
+        }
+
+        return Object.values(actStories);
+    }
+
+
+    static getChapterContentByVersion(userId: string, chapterid: string, version: number, lang: 'fr' | 'en' = 'fr'): string {
+        const chapter: ContentQueryResult = ChapterRepo.fetchChapterContentByVersion(userId, chapterid, version, lang);
+        const userKey: string = getUserEncryptionKey(userId);
+        return chapter.content ? System.decryptDataWithUserKey(chapter.content, userKey) : '';
+    }
+
+    static removeChapterInformation(userId: string, chapterInfoId: string, lang: 'fr' | 'en' = 'fr') {
+        return ChapterRepo.deleteChapterInformation(userId, chapterInfoId, lang);
+    }
+
+    static tipTapToHtml(tipTapContent: JSON): string {
+        const fixNode = (node: Record<string, unknown>): Record<string, unknown> => {
+            if (!node) return node;
+
+            if (node.type === 'text' && (!node.text || node.text === '')) {
+                node.text = '\u00A0';
+            }
+
+            if (Array.isArray(node.content) && node.content.length) {
+                node.content = node.content.map(fixNode);
+            }
+
+            return node;
+        };
+
+        return generateHTML(fixNode(tipTapContent as unknown as Record<string, unknown>), [
+            StarterKit,
+            TextAlign.configure({
+                types: ['heading', 'paragraph'],
+            }),
+        ]);
+    }
+}
diff --git a/electron/database/models/Character.ts b/electron/database/models/Character.ts
new file mode 100644
index 0000000..42245ed
--- /dev/null
+++ b/electron/database/models/Character.ts
@@ -0,0 +1,295 @@
+import User from "./User";
+import System, {UserKey} from "./System";
+import CharacterRepo, {AttributeResult, CharacterResult, CompleteCharacterResult} from "../repositories/character.repo";
+
+export type CharacterCategory = 'Main' | 'Secondary' | 'Recurring';
+
+export interface CharacterPropsPost {
+    id: number | null;
+    name: string;
+    lastName: string;
+    category: CharacterCategory;
+    title: string;
+    image: string;
+    physical: { name: string }[];
+    psychological: { name: string }[];
+    relations: { name: string }[];
+    skills: { name: string }[];
+    weaknesses: { name: string }[];
+    strengths: { name: string }[];
+    goals: { name: string }[];
+    motivations: { name: string }[];
+    role: string;
+    biography?: string;
+    history?: string;
+}
+
+
+export interface CharacterProps {
+    id: string;
+    name: string;
+    lastName: string;
+    title: string;
+    category: string;
+    image: string;
+    role: string;
+    biography: string;
+    history: string;
+}
+
+export interface CompleteCharacterProps {
+    id?: string;
+    name: string;
+    lastName: string;
+    title: string;
+    category: string;
+    image?: string;
+    role: string;
+    biography: string;
+    history: string;
+    [key: string]: Attribute[] | string | undefined;
+}
+
+export interface Attribute {
+    id: string;
+    name: string;
+}
+
+
+export interface CharacterAttribute {
+    type: string;
+    values: Attribute[];
+}
+
+export default class Character{
+    public static async getCharacterList(userId: string, bookId: string): Promise<CharacterProps[]> {
+        const user = new User(userId);
+        const keys:UserKey[] = await System.getAllUserKeysAndVersions(userId);
+        const characters: CharacterResult[] = await CharacterRepo.fetchCharacters(userId, bookId);
+        if (!characters) return [];
+        if (characters.length === 0) return [];
+        const characterList:CharacterProps[] = [];
+        for (const character of characters) {
+            const userKey:string = await user.getUserKey(character.char_meta,true,keys);
+            characterList.push({
+                id:character.character_id,
+                name:character.first_name ? System.decryptDataWithUserKey(character.first_name,userKey) : '',
+                lastName: character.last_name ? System.decryptDataWithUserKey(character.last_name, userKey) : '',
+                title: character.title ? System.decryptDataWithUserKey(character.title, userKey) : '',
+                category: character.category ? System.decryptDataWithUserKey(character.category, userKey) : '',
+                image: character.image ? System.decryptDataWithUserKey(character.image, userKey) : '',
+                role: character.role ? System.decryptDataWithUserKey(character.role, userKey) : '',
+                biography: character.biography ? System.decryptDataWithUserKey(character.biography, userKey) : '',
+                history: character.history ? System.decryptDataWithUserKey(character.history, userKey) : '',
+            })
+        }
+        return characterList;
+    }
+    
+    public static async addNewCharacter(userId: string, character: CharacterPropsPost, bookId: string): Promise<string> {
+        const user = new User(userId);
+        const meta:string = System.encryptDateKey(userId);
+        const userKey:string = await user.getUserKey(meta,true);
+        const characterId: string = System.createUniqueId();
+        const encryptedName: string = System.encryptDataWithUserKey(character.name, userKey);
+        const encryptedLastName: string = System.encryptDataWithUserKey(character.lastName, userKey);
+        const encryptedTitle: string = System.encryptDataWithUserKey(character.title, userKey);
+        const encryptedCategory: string = System.encryptDataWithUserKey(character.category, userKey);
+        const encryptedImage: string = System.encryptDataWithUserKey(character.image, userKey);
+        const encryptedRole: string = System.encryptDataWithUserKey(character.role, userKey);
+        const encryptedBiography: string = System.encryptDataWithUserKey(character.biography ? character.biography : '', userKey);
+        const encryptedHistory: string = System.encryptDataWithUserKey(character.history ? character.history : '', userKey);
+        await CharacterRepo.addNewCharacter(userId, characterId, encryptedName, encryptedLastName, encryptedTitle, encryptedCategory, encryptedImage, encryptedRole, encryptedBiography, encryptedHistory, bookId, meta);
+        const attributes: string[] = Object.keys(character);
+        for (const key of attributes) {
+            if (Array.isArray(character[key as keyof CharacterPropsPost])) {
+                const array = character[key as keyof CharacterPropsPost] as { name: string }[];
+                if (array.length > 0) {
+                    for (const item of array) {
+                        const type: string = key;
+                        const name: string = item.name;
+                        await this.addNewAttribute(characterId, userId, type, name);
+                    }
+                }
+            }
+        }
+        return characterId;
+    }
+    
+    static async updateCharacter(userId: string, character: CharacterPropsPost): Promise<boolean> {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta, true);
+        const encryptedName: string = System.encryptDataWithUserKey(character.name, userKey);
+        const encryptedLastName: string = System.encryptDataWithUserKey(character.lastName, userKey);
+        const encryptedTitle: string = System.encryptDataWithUserKey(character.title, userKey);
+        const encryptedCategory: string = System.encryptDataWithUserKey(character.category, userKey);
+        const encryptedImage: string = System.encryptDataWithUserKey(character.image, userKey);
+        const encryptedRole: string = System.encryptDataWithUserKey(character.role, userKey);
+        const encryptedBiography: string = System.encryptDataWithUserKey(character.biography ? character.biography : '', userKey);
+        const encryptedHistory: string = System.encryptDataWithUserKey(character.history ? character.history : '', userKey);
+        return await CharacterRepo.updateCharacter(userId, character.id, encryptedName, encryptedLastName, encryptedTitle, encryptedCategory, encryptedImage, encryptedRole, encryptedBiography, encryptedHistory, meta);
+    }
+    
+    static async addNewAttribute(characterId: string, userId: string, type: string, name: string): Promise<string> {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta, true);
+        const attributeId: string = System.createUniqueId();
+        const encryptedType: string = System.encryptDataWithUserKey(type, userKey);
+        const encryptedName: string = System.encryptDataWithUserKey(name, userKey);
+        return await CharacterRepo.insertAttribute(attributeId, characterId, userId, encryptedType, encryptedName, meta);
+    }
+
+    static async deleteAttribute(userId: string, attributeId: string) {
+        return await CharacterRepo.deleteAttribute(userId, attributeId);
+    }
+    
+    static async getAttributes(characterId: string, userId: string): Promise<CharacterAttribute[]> {
+        const user: User = new User(userId);
+        const keys: UserKey[] = await System.getAllUserKeysAndVersions(userId);
+        const attributes: AttributeResult[] = await CharacterRepo.fetchAttributes(characterId, userId);
+        if (!attributes?.length) return [];
+        
+        const groupedMap: Map<string, Attribute[]> = new Map<string, Attribute[]>();
+
+        for (const attribute of attributes) {
+            const userKey: string = await user.getUserKey(attribute.attr_meta, true, keys);
+            const type: string = System.decryptDataWithUserKey(attribute.attribute_name, userKey);
+            const value: string = attribute.attribute_value ? System.decryptDataWithUserKey(attribute.attribute_value, userKey) : '';
+            
+            if (!groupedMap.has(type)) {
+                groupedMap.set(type, []);
+            }
+            
+            groupedMap.get(type)!.push({
+                id: attribute.attr_id,
+                name: value
+            });
+        }
+        
+        return Array.from<[string, Attribute[]], CharacterAttribute>(
+            groupedMap,
+            ([type, values]: [string, Attribute[]]): CharacterAttribute => ({type, values})
+        );
+    }
+    
+    static async getCompleteCharacterList(userId: string, bookId: string, characters: string[]): Promise<CompleteCharacterProps[]> {
+        const characterList: CompleteCharacterResult[] = await CharacterRepo.fetchCompleteCharacters(userId, bookId, characters);
+        
+        if (!characterList || characterList.length === 0) {
+            return [];
+        }
+        
+        const user = new User(userId);
+        const keys: UserKey[] = await System.getAllUserKeysAndVersions(userId);
+        const completeCharactersMap = new Map<string, CompleteCharacterProps>();
+        for (const character of characterList) {
+            if (!character.character_id) {
+                continue;
+            }
+            
+            if (!completeCharactersMap.has(character.character_id)) {
+                const userKey: string = await user.getUserKey(character.char_meta, true, keys);
+                if (!userKey) {
+                    continue;
+                }
+                const personnageObj: CompleteCharacterProps = {
+                    id: '',
+                    name: character.first_name ? System.decryptDataWithUserKey(character.first_name, userKey) : '',
+                    lastName: character.last_name ? System.decryptDataWithUserKey(character.last_name, userKey) : '',
+                    title: character.title ? System.decryptDataWithUserKey(character.title, userKey) : '',
+                    category: character.category ? System.decryptDataWithUserKey(character.category, userKey) : '',
+                    role: character.role ? System.decryptDataWithUserKey(character.role, userKey) : '',
+                    biography: character.biography ? System.decryptDataWithUserKey(character.biography, userKey) : '',
+                    history: character.history ? System.decryptDataWithUserKey(character.history, userKey) : '',
+                    physical: [],
+                    psychological: [],
+                    relations: [],
+                    skills: [],
+                    weaknesses: [],
+                    strengths: [],
+                    goals: [],
+                    motivations: []
+                };
+                completeCharactersMap.set(character.character_id, personnageObj);
+            }
+            
+            const personnage: CompleteCharacterProps | undefined = completeCharactersMap.get(character.character_id);
+            
+            if (!character.attr_meta) {
+                continue;
+            }
+            
+            const rowKey: string = await user.getUserKey(character.attr_meta, true, keys);
+            
+            if (!personnage || !rowKey) {
+                continue;
+            }
+            const decryptedName: string = System.decryptDataWithUserKey(character.attribute_name, rowKey);
+            const decryptedValue: string = character.attribute_value ? System.decryptDataWithUserKey(character.attribute_value, rowKey) : '';
+            
+            if (Array.isArray(personnage[decryptedName])) {
+                personnage[decryptedName].push({
+                    id: '',
+                    name: decryptedValue
+                });
+            }
+        }
+        return Array.from(completeCharactersMap.values());
+    }
+    
+    static characterVCard(characters: CompleteCharacterProps[]): string {
+        const charactersMap = new Map<string, CompleteCharacterProps>();
+        let charactersDescription: string = '';
+        
+        characters.forEach((character: CompleteCharacterProps): void => {
+            const characterKey: string = character.name || character.id || 'unknown';
+            
+            if (!charactersMap.has(characterKey)) {
+                charactersMap.set(characterKey, {
+                    name: character.name,
+                    lastName: character.lastName,
+                    category: character.category,
+                    title: character.title,
+                    role: character.role,
+                    biography: character.biography,
+                    history: character.history
+                });
+            }
+            
+            const characterData: CompleteCharacterProps = charactersMap.get(characterKey)!;
+            
+            Object.keys(character).forEach((fieldName: string): void => {
+                if (Array.isArray(character[fieldName])) {
+                    if (!characterData[fieldName]) characterData[fieldName] = [];
+                    (characterData[fieldName] as Attribute[]).push(...(character[fieldName] as Attribute[]));
+                }
+            });
+        });
+        
+        charactersDescription = Array.from(charactersMap.values()).map((character: CompleteCharacterProps): string => {
+            const descriptionFields: string[] = [];
+            const fullName: string = [character.name, character.lastName].filter(Boolean).join(' ');
+            if (fullName) descriptionFields.push(`Nom : ${fullName}`);
+            
+            (['category', 'title', 'role', 'biography', 'history'] as const).forEach((propertyKey) => {
+                if (character[propertyKey]) {
+                    descriptionFields.push(`${propertyKey.charAt(0).toUpperCase() + propertyKey.slice(1)} : ${character[propertyKey]}`);
+                }
+            });
+            
+            Object.keys(character).forEach((propertyKey: string): void => {
+                const propertyValue: string | Attribute[] | undefined = character[propertyKey];
+                if (Array.isArray(propertyValue) && propertyValue.length > 0) {
+                    const capitalizedPropertyKey: string = propertyKey.charAt(0).toUpperCase() + propertyKey.slice(1);
+                    const formattedValues: string = propertyValue.map((item: Attribute) => item.name).join(', ');
+                    descriptionFields.push(`${capitalizedPropertyKey} : ${formattedValues}`);
+                }
+            });
+            
+            return descriptionFields.join('\n');
+        }).join('\n\n');
+        return charactersDescription;
+    }
+}
diff --git a/electron/database/models/Content.ts b/electron/database/models/Content.ts
new file mode 100755
index 0000000..9d226c2
--- /dev/null
+++ b/electron/database/models/Content.ts
@@ -0,0 +1,160 @@
+export interface TiptapNode {
+    type: string;
+    content?: TiptapNode[];
+    text?: string;
+    attrs?: {
+        [key: string]: any;
+    };
+}
+
+export default class Content {
+    static convertTipTapRawToText(content: string): string {
+        const text: string = this.convertTiptapToHTMLFromString(content);
+        return this.htmlToText(text);
+    }
+
+    static htmlToText(html: string) {
+        return html
+            .replace(/<br\s*\/?>/gi, '\n') // Gérer les <br> d'abord
+            .replace(/<\/?(p|h[1-6]|div)(\s+[^>]*)?>/gi, '\n') // Balises bloc
+            .replace(/<\/?[^>]+(>|$)/g, '') // Supprimer toutes les balises restantes
+            .replace(/(\n\s*){2,}/g, '\n\n') // Préserver les paragraphes
+            .replace(/^\s+|\s+$|(?<=\s)\s+/g, '') // Nettoyer les espaces
+            .trim();
+    }
+
+    static convertTiptapToHTMLFromString(jsonString: string): string {
+        // Convert the JSON string to an object
+        let jsonObject: TiptapNode;
+        try {
+            jsonObject = JSON.parse(jsonString);
+        } catch (error) {
+            console.error('Invalid JSON string:', error);
+            return '';
+        }
+
+        // Use the existing conversion function
+        return this.convertTiptapToHTML(jsonObject);
+    }
+
+    static convertTiptapToHTML(node: TiptapNode): string {
+        let html = '';
+
+        switch (node.type) {
+            case 'doc':
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                break;
+
+            case 'paragraph':
+                html += '<p>';
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += '</p>';
+                break;
+
+            case 'text':
+                let textContent = node.text || '';
+
+                // Apply attributes like bold, italic, etc.
+                if (node.attrs) {
+                    if (node.attrs.bold) {
+                        textContent = `<strong>${textContent}</strong>`;
+                    }
+                    if (node.attrs.italic) {
+                        textContent = `<em>${textContent}</em>`;
+                    }
+                    if (node.attrs.underline) {
+                        textContent = `<u>${textContent}</u>`;
+                    }
+                    if (node.attrs.strike) {
+                        textContent = `<s>${textContent}</s>`;
+                    }
+                    if (node.attrs.link) {
+                        textContent = `<a href="${node.attrs.link.href}">${textContent}</a>`;
+                    }
+                }
+
+                html += textContent;
+                break;
+
+            case 'heading':
+                const level = node.attrs?.level || 1;
+                html += `<h${level}>`;
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += `</h${level}>`;
+                break;
+
+            case 'bulletList':
+                html += '<ul>';
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += '</ul>';
+                break;
+
+            case 'orderedList':
+                html += '<ol>';
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += '</ol>';
+                break;
+
+            case 'listItem':
+                html += '<li>';
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += '</li>';
+                break;
+
+            case 'blockquote':
+                html += '<blockquote>';
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += '</blockquote>';
+                break;
+
+            case 'codeBlock':
+                html += '<pre><code>';
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                html += '</code></pre>';
+                break;
+
+            default:
+                console.warn(`Unhandled node type: ${node.type}`);
+                if (node.content) {
+                    node.content.forEach(childNode => {
+                        html += this.convertTiptapToHTML(childNode);
+                    });
+                }
+                break;
+        }
+
+        return html;
+    }
+}
diff --git a/electron/database/models/EpubStyle.ts b/electron/database/models/EpubStyle.ts
new file mode 100755
index 0000000..cf79982
--- /dev/null
+++ b/electron/database/models/EpubStyle.ts
@@ -0,0 +1,11 @@
+export const mainStyle = `h1 {
+  font-size: 24px !important;
+  font-weight: bold !important;
+  text-indent: 24px !important;
+}
+p {
+  text-indent: 30px !important;
+  margin-top: 0.7em !important;
+  margin-bottom: 0.7em !important;
+  text-align: justify !important;
+}`
diff --git a/electron/database/models/Location.ts b/electron/database/models/Location.ts
new file mode 100644
index 0000000..b0552a2
--- /dev/null
+++ b/electron/database/models/Location.ts
@@ -0,0 +1,252 @@
+import User from "./User";
+import System, {UserKey} from "./System";
+import LocationRepo, {
+    LocationByTagResult,
+    LocationElementQueryResult,
+    LocationQueryResult
+} from "../repositories/location.repo";
+
+export interface SubElement {
+    id: string;
+    name: string;
+    description: string;
+}
+
+export interface Element {
+    id: string;
+    name: string;
+    description: string;
+    subElements: SubElement[];
+}
+
+export interface LocationProps {
+    id: string;
+    name: string;
+    elements: Element[];
+}
+
+export default class Location {
+    /**
+     * Récupère toutes les locations pour un utilisateur et un livre donnés.
+     * @param {string} userId - L'ID de l'utilisateur.
+     * @param {string} bookId - L'ID du livre.
+     * @returns {Promise<LocationProps[]>} - Une promesse qui résout un tableau de propriétés de location.
+     * @throws {Error} - Lance une erreur si une exception se produit lors de la récupération des locations.
+     */
+    static async getAllLocations(userId: string, bookId: string): Promise<LocationProps[]> {
+        const locations: LocationQueryResult[] = await LocationRepo.getLocation(userId, bookId);
+        if (!locations || locations.length === 0) return [];
+        const user = new User(userId);
+        const userKeys: UserKey[] = await System.getAllUserKeysAndVersions(userId);
+        
+        const locationArray: LocationProps[] = [];
+        
+        for (const record of locations) {
+            let location = locationArray.find(loc => loc.id === record.loc_id);
+            
+            if (!location) {
+                const key: string = await user.getUserKey(record.loc_meta, true, userKeys);
+                const decryptedName: string = System.decryptDataWithUserKey(record.loc_name, key)/* ton code de décryptage ici avec record.loc_name */;
+                location = {
+                    id: record.loc_id,
+                    name: decryptedName,
+                    elements: []
+                };
+                locationArray.push(location);
+            }
+            
+            if (record.element_id) {
+                let element = location.elements.find(elem => elem.id === record.element_id);
+                if (!element) {
+                    const key: string = await user.getUserKey(record.element_meta, true, userKeys);
+                    const decryptedName: string = System.decryptDataWithUserKey(record.element_name, key)/* ton code de décryptage ici avec record.element_name */;
+                    const decryptedDesc: string = record.element_description ? System.decryptDataWithUserKey(record.element_description, key) : ''/* ton code de décryptage ici avec record.element_description */;
+                    
+                    element = {
+                        id: record.element_id,
+                        name: decryptedName,
+                        description: decryptedDesc,
+                        subElements: []
+                    };
+                    location.elements.push(element);
+                }
+                
+                if (record.sub_element_id) {
+                    const subElementExists = element.subElements.some(sub => sub.id === record.sub_element_id);
+                    
+                    if (!subElementExists) {
+                        const key: string = await user.getUserKey(record.sub_elem_meta, true, userKeys);
+                        const decryptedName: string = System.decryptDataWithUserKey(record.sub_elem_name, key)/* ton code de décryptage ici avec record.sub_elem_name */;
+                        const decryptedDesc: string = record.sub_elem_description ? System.decryptDataWithUserKey(record.sub_elem_description, key) : ''/* ton code de décryptage ici avec record.sub_elem_description */;
+                        
+                        
+                        element.subElements.push({
+                            id: record.sub_element_id,
+                            name: decryptedName,
+                            description: decryptedDesc
+                        });
+                    }
+                }
+            }
+        }
+        return locationArray;
+    }
+    
+    static async addLocationSection(userId: string, locationName: string, bookId: string): Promise<string> {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta, true);
+        const originalName: string = System.hashElement(locationName);
+        const encryptedName: string = System.encryptDataWithUserKey(locationName, userKey);
+        const locationId: string = System.createUniqueId();
+        return await LocationRepo.insertLocation(userId, locationId, bookId, encryptedName, originalName, meta);
+    }
+
+    static async addLocationElement(userId: string, locationId: string, elementName: string) {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta, true);
+        const originalName: string = System.hashElement(elementName);
+        const encryptedName: string = System.encryptDataWithUserKey(elementName, userKey);
+        const elementId: string = System.createUniqueId();
+        return LocationRepo.insertLocationElement(userId, elementId, locationId, encryptedName, originalName, meta)
+    }
+
+    static async addLocationSubElement(userId: string, elementId: string, subElementName: string) {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta, true);
+        const originalName: string = System.hashElement(subElementName);
+        const encryptedName: string = System.encryptDataWithUserKey(subElementName, userKey);
+        const subElementId: string = System.createUniqueId();
+        return LocationRepo.insertLocationSubElement(userId, subElementId, elementId, encryptedName, originalName, meta)
+    }
+
+    static async updateLocationSection(userId: string, locations: LocationProps[]) {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta, true);
+
+        for (const location of locations) {
+            const originalName: string = System.hashElement(location.name);
+            const encryptedName: string = System.encryptDataWithUserKey(location.name, userKey);
+            await LocationRepo.updateLocationSection(userId, location.id, encryptedName, originalName, meta)
+            for (const element of location.elements) {
+                const originalName: string = System.hashElement(element.name);
+                const encryptedName: string = System.encryptDataWithUserKey(element.name, userKey);
+                const encryptDescription: string = element.description ? System.encryptDataWithUserKey(element.description, userKey) : '';
+                await LocationRepo.updateLocationElement(userId, element.id, encryptedName, originalName, encryptDescription, meta)
+                for (const subElement of element.subElements) {
+                    const originalName: string = System.hashElement(subElement.name);
+                    const encryptedName: string = System.encryptDataWithUserKey(subElement.name, userKey);
+                    const encryptDescription: string = subElement.description ? System.encryptDataWithUserKey(subElement.description, userKey) : '';
+                    await LocationRepo.updateLocationSubElement(userId, subElement.id, encryptedName, originalName, encryptDescription, meta)
+                }
+            }
+        }
+        return {
+            valid: true,
+            message: 'Les sections ont été mis à jour.'
+        }
+    }
+
+    static async deleteLocationSection(userId: string, locationId: string) {
+        return LocationRepo.deleteLocationSection(userId, locationId);
+    }
+
+    static async deleteLocationElement(userId: string, elementId: string) {
+        return LocationRepo.deleteLocationElement(userId, elementId);
+    }
+
+    static async deleteLocationSubElement(userId: string, subElementId: string) {
+        return LocationRepo.deleteLocationSubElement(userId, subElementId);
+    }
+    
+    static async getLocationTags(userId: string, bookId: string): Promise<SubElement[]> {
+        const data: LocationElementQueryResult[] = await LocationRepo.fetchLocationTags(userId, bookId);
+        if (!data || data.length === 0) return [];
+        const user = new User(userId);
+        const userKeys: UserKey[] = await System.getAllUserKeysAndVersions(userId);
+        
+        const elementCounts = new Map<string, number>();
+        data.forEach((record: LocationElementQueryResult): void => {
+            elementCounts.set(record.element_id, (elementCounts.get(record.element_id) || 0) + 1);
+        });
+    
+        const subElements: SubElement[] = [];
+        const processedIds = new Set<string>();
+    
+        for (const record of data) {
+            const elementCount: number = elementCounts.get(record.element_id) || 0;
+            
+            if (elementCount > 1 && record.sub_element_id) {
+                if (processedIds.has(record.sub_element_id)) continue;
+                
+                const key: string = await user.getUserKey(record.sub_elem_meta, true, userKeys);
+                subElements.push({
+                    id: record.sub_element_id,
+                    name: System.decryptDataWithUserKey(record.sub_elem_name, key),
+                    description: record.sub_elem_description ? System.decryptDataWithUserKey(record.sub_elem_description, key) : ''
+                });
+                processedIds.add(record.sub_element_id);
+            } else if (elementCount === 1 && !record.sub_element_id) {
+                if (processedIds.has(record.element_id)) continue;
+                
+                const key: string = await user.getUserKey(record.element_meta, true, userKeys);
+                subElements.push({
+                    id: record.element_id,
+                    name: System.decryptDataWithUserKey(record.element_name, key),
+                    description: record.element_description ? System.decryptDataWithUserKey(record.element_description, key) : ''
+                });
+                processedIds.add(record.element_id);
+            }
+        }
+        return subElements;
+    }
+    
+    static async getLocationsByTags(userId: string, locations: string[]): Promise<Element[]> {
+        const locationsTags: LocationByTagResult[] = await LocationRepo.fetchLocationsByTags(userId, locations);
+        if (!locationsTags || locationsTags.length === 0) return [];
+        const user = new User(userId);
+        const userKeys: UserKey[] = await System.getAllUserKeysAndVersions(userId);
+        const locationTags: Element[] = [];
+        for (const record of locationsTags) {
+            let element: Element | undefined = locationTags.find((elem: Element): boolean => elem.name === record.element_name);
+            if (!element) {
+                const key: string = await user.getUserKey(record.element_meta, true, userKeys);
+                const decryptedName: string = System.decryptDataWithUserKey(record.element_name, key);
+                const decryptedDesc: string = record.element_description ? System.decryptDataWithUserKey(record.element_description, key) : '';
+                element = {
+                    id: record.element_id,
+                    name: decryptedName,
+                    description: decryptedDesc,
+                    subElements: []
+                };
+                locationTags.push(element);
+            }
+            if (record.sub_elem_name) {
+                const subElementExists: boolean = element.subElements.some(sub => sub.name === record.sub_elem_name);
+                if (!subElementExists) {
+                    const key: string = await user.getUserKey(record.sub_elem_meta, true, userKeys);
+                    const decryptedName: string = System.decryptDataWithUserKey(record.sub_elem_name, key);
+                    const decryptedDesc: string = record.sub_elem_description ? System.decryptDataWithUserKey(record.sub_elem_description, key) : '';
+                    element.subElements.push({
+                        id: '',
+                        name: decryptedName,
+                        description: decryptedDesc
+                    });
+                }
+            }
+        }
+        return locationTags;
+    }
+    
+    static async locationsDescription(locations: Element[]): Promise<string> {
+        return locations.map((location: Element): string => {
+            const fields: string[] = [];
+            if (location.name) fields.push(`Nom : ${location.name}`);
+            if (location.description) fields.push(`Description : ${location.description}`);
+            return fields.join('\n');
+        }).join('\n\n');
+    }
+}
diff --git a/electron/database/models/Model.ts b/electron/database/models/Model.ts
new file mode 100644
index 0000000..c3fa219
--- /dev/null
+++ b/electron/database/models/Model.ts
@@ -0,0 +1,253 @@
+export type GPTModel = "gpt-4o-mini" | "gpt-4o-turbo" | "gpt-3.5-turbo" | "gpt-4o" | "gpt-4.1" | "gpt-4.1-nano";
+export type AnthropicModel =
+    "claude-3-7-sonnet-20250219"
+    | "claude-sonnet-4-20250514"
+    | "claude-sonnet-4-5-20250929"
+    | "claude-3-5-haiku-20241022"
+    | "claude-3-5-sonnet-20241022"
+    | "claude-3-5-sonnet-20240620"
+    | "claude-3-opus-20240229";
+export type GeminiModel =
+    | "gemini-2.0-flash-001"
+    | "gemini-2.0-flash-lite-001"
+    | "gemini-2.5-flash"
+    | "gemini-2.5-flash-lite"
+    | "gemini-2.5-pro";
+
+export interface AIModelConfig {
+    model_id: string;
+    model_name: string;
+    brand: string;
+    price_token_in: number;
+    per_quantity_in: number;
+    price_token_out: number;
+    per_quantity_out: number;
+}
+
+export const AIModels: AIModelConfig[] = [
+    {
+        "model_id": "claude-3-5-haiku-20241022",
+        "model_name": "Claude Haiku 3.5",
+        "brand": "Anthropic",
+        "price_token_in": 0.8,
+        "per_quantity_in": 1000000,
+        "price_token_out": 4,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-3-5-sonnet-20241022",
+        "model_name": "Claude Sonnet 3.5",
+        "brand": "Anthropic",
+        "price_token_in": 3,
+        "per_quantity_in": 1000000,
+        "price_token_out": 15,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-3-7-sonnet-20250219",
+        "model_name": "Claude Sonnet 3.7",
+        "brand": "Anthropic",
+        "price_token_in": 3,
+        "per_quantity_in": 1000000,
+        "price_token_out": 15,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-3-haiku-20240307",
+        "model_name": "Claude Haiku 3",
+        "brand": "Anthropic",
+        "price_token_in": 0.25,
+        "per_quantity_in": 1000000,
+        "price_token_out": 1.25,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-3-opus-20240229",
+        "model_name": "Claude Opus 3",
+        "brand": "Anthropic",
+        "price_token_in": 15,
+        "per_quantity_in": 1000000,
+        "price_token_out": 75,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-opus-4-20250514",
+        "model_name": "Claude Opus 4",
+        "brand": "Anthropic",
+        "price_token_in": 15,
+        "per_quantity_in": 1000000,
+        "price_token_out": 75,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-sonnet-4-20250514",
+        "model_name": "Claude Sonnet 4",
+        "brand": "Anthropic",
+        "price_token_in": 3,
+        "per_quantity_in": 1000000,
+        "price_token_out": 15,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "claude-sonnet-4-5-20250929",
+        "model_name": "Claude Sonnet 4.5",
+        "brand": "Anthropic",
+        "price_token_in": 3,
+        "per_quantity_in": 1000000,
+        "price_token_out": 15,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gemini-2.0-flash-001",
+        "model_name": "Gemini 2.0 Flash",
+        "brand": "Google",
+        "price_token_in": 0.1,
+        "per_quantity_in": 1000000,
+        "price_token_out": 0.4,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gemini-2.0-flash-lite-001",
+        "model_name": "Gemini 2.0 Flash-Lite",
+        "brand": "Google",
+        "price_token_in": 0.075,
+        "per_quantity_in": 1000000,
+        "price_token_out": 0.3,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gemini-2.5-flash",
+        "model_name": "Gemini 2.5 Flash",
+        "brand": "Google",
+        "price_token_in": 0.3,
+        "per_quantity_in": 1000000,
+        "price_token_out": 2.5,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gemini-2.5-flash-lite",
+        "model_name": "Gemini 2.5 Flash-Lite",
+        "brand": "Google",
+        "price_token_in": 0.1,
+        "per_quantity_in": 1000000,
+        "price_token_out": 0.4,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gemini-2.5-pro",
+        "model_name": "Gemini 2.5 Pro",
+        "brand": "Google",
+        "price_token_in": 1.25,
+        "per_quantity_in": 1000000,
+        "price_token_out": 10,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-3.5-turbo",
+        "model_name": "GPT-3.5 Turbo",
+        "brand": "OpenAI",
+        "price_token_in": 0.5,
+        "per_quantity_in": 1000000,
+        "price_token_out": 1.5,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4",
+        "model_name": "GPT-4",
+        "brand": "OpenAI",
+        "price_token_in": 30,
+        "per_quantity_in": 1000000,
+        "price_token_out": 60,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4-turbo",
+        "model_name": "GPT-4 Turbo",
+        "brand": "OpenAI",
+        "price_token_in": 10,
+        "per_quantity_in": 1000000,
+        "price_token_out": 30,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4.1",
+        "model_name": "GPT-4.1",
+        "brand": "OpenAI",
+        "price_token_in": 2,
+        "per_quantity_in": 1000000,
+        "price_token_out": 8,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4.1-mini",
+        "model_name": "GPT-4.1 Mini",
+        "brand": "OpenAI",
+        "price_token_in": 0.4,
+        "per_quantity_in": 1000000,
+        "price_token_out": 0.6,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4.1-nano",
+        "model_name": "GPT-4.1 Nano",
+        "brand": "OpenAI",
+        "price_token_in": 0.1,
+        "per_quantity_in": 1000000,
+        "price_token_out": 0.4,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4o",
+        "model_name": "GPT-4o",
+        "brand": "OpenAI",
+        "price_token_in": 5,
+        "per_quantity_in": 1000000,
+        "price_token_out": 20,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4o-2024-11-20",
+        "model_name": "GPT-4o (2024-11-20)",
+        "brand": "OpenAI",
+        "price_token_in": 5,
+        "per_quantity_in": 1000000,
+        "price_token_out": 15,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-4o-mini",
+        "model_name": "GPT-4o Mini",
+        "brand": "OpenAI",
+        "price_token_in": 0.6,
+        "per_quantity_in": 1000000,
+        "price_token_out": 2.4,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-5",
+        "model_name": "GPT 5",
+        "brand": "OpenAI",
+        "price_token_in": 1.25,
+        "per_quantity_in": 1000000,
+        "price_token_out": 10,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-5-mini",
+        "model_name": "GPT 5 Mini",
+        "brand": "OpenAI",
+        "price_token_in": 0.25,
+        "per_quantity_in": 1000000,
+        "price_token_out": 2,
+        "per_quantity_out": 1000000
+    },
+    {
+        "model_id": "gpt-5-nano",
+        "model_name": "GPT 5 Nano",
+        "brand": "OpenAI",
+        "price_token_in": 0.05,
+        "per_quantity_in": 1000000,
+        "price_token_out": 0.4,
+        "per_quantity_out": 1000000
+    }
+]
\ No newline at end of file
diff --git a/electron/database/models/Story.ts b/electron/database/models/Story.ts
new file mode 100755
index 0000000..22d93d8
--- /dev/null
+++ b/electron/database/models/Story.ts
@@ -0,0 +1,712 @@
+export interface VerbalTimeProps{
+    actions: string;
+    descriptions: string;
+    dialogues: string;
+    thoughts: string;
+    summary: string;
+}
+
+export interface DialogueProps{
+    description: string;
+    example: string;
+}
+
+export default class Story {
+    constructor() {}
+    
+    static getVerbesStyle(verbalTimeValue: number, level: number, lang: "fr" | "en"): VerbalTimeProps {
+        switch (verbalTimeValue) {
+            case 1: // Passé Simple / Simple Past
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Passé composé' : 'Past perfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé simple' : 'Simple past')
+                            : (lang === "fr" ? 'Passé simple + passé antérieur' : 'Simple past + past perfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + plus-que-parfait' : 'Imperfect + pluperfect'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + passé composé' : 'Present + present perfect'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                            : (lang === "fr" ? 'Plus-que-parfait + subjonctif passé' : 'Pluperfect + past subjunctive'),
+                    summary: lang === "fr" ? '→ Narrations épurées, style classique' : '→ Clean narratives, classical style',
+                };
+            
+            case 2: // Passé Immédiat / Immediate Past
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                            : (lang === "fr" ? 'Passé composé + présent' : 'Present perfect + present'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + participe passé' : 'Imperfect + past participle'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + passé composé' : 'Present + present perfect'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + passé composé' : 'Present + present perfect'),
+                    summary: lang === "fr" ? '→ Témoignages, récits autobiographiques' : '→ Testimonies, autobiographical narratives',
+                };
+            
+            case 3: // Passé Profond / Deep Past
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                            : (lang === "fr" ? 'Passé antérieur' : 'Past anterior'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                            : (lang === "fr" ? 'Plus-que-parfait + conditionnel passé' : 'Pluperfect + past conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                            : (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                            : (lang === "fr" ? 'Plus-que-parfait + subjonctif passé' : 'Pluperfect + past subjunctive'),
+                    summary: lang === "fr" ? '→ Flashbacks littéraires, tragédies' : '→ Literary flashbacks, tragedies',
+                };
+            
+            case 4: // Présent Brut / Raw Present
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + participe présent' : 'Present + present participle'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + adjectifs' : 'Present + adjectives'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + impératif' : 'Present + imperative'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + infinitif' : 'Present + infinitive'),
+                    summary: lang === "fr" ? '→ Urgence, immersion totale' : '→ Urgency, total immersion',
+                };
+            
+            case 5: // Présent Réflexif / Reflective Present
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + gérondif' : 'Present + gerund'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent + adjectifs' : 'Present + adjectives')
+                            : (lang === "fr" ? 'Présent + métaphores' : 'Present + metaphors'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + style indirect libre' : 'Present + free indirect style'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + subjonctif présent' : 'Present + present subjunctive'),
+                    summary: lang === "fr" ? '→ Méditations philosophiques' : '→ Philosophical meditations',
+                };
+            
+            case 6: // Futur Projeté / Projected Future
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur simple + conditionnel' : 'Simple future + conditional'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    summary: lang === "fr" ? '→ Prophéties, plans stratégiques' : '→ Prophecies, strategic plans',
+                };
+            
+            case 7: // Futur Catastrophe / Catastrophic Future
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur + conditionnel' : 'Future perfect + conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur simple + impératif' : 'Simple future + imperative'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Conditionnel présent' : 'Present conditional'),
+                    summary: lang === "fr" ? '→ Dystopies, récits post-apocalyptiques' : '→ Dystopias, post-apocalyptic narratives',
+                };
+            
+            case 8: // Imparfait Onirique / Dreamlike Imperfect
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + conditionnel présent' : 'Imperfect + present conditional'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + conditionnel présent' : 'Imperfect + present conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + conditionnel présent' : 'Imperfect + present conditional'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + subjonctif présent' : 'Imperfect + present subjunctive'),
+                    summary: lang === "fr" ? '→ Rêves, souvenirs déformés' : '→ Dreams, distorted memories',
+                };
+            
+            case 9: // Conditionnel Hypothétique / Hypothetical Conditional
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel passé' : 'Past conditional'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel passé' : 'Past conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel présent + subjonctif' : 'Present conditional + subjunctive'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel passé' : 'Past conditional'),
+                    summary: lang === "fr" ? '→ Uchronies, réalités alternatives' : '→ Alternate histories, alternative realities',
+                };
+            
+            case 10: // Subjonctif Angoissé / Anxious Subjunctive
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + subjonctif présent' : 'Present + present subjunctive'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + subjonctif présent' : 'Present + present subjunctive'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent + interjections' : 'Present + interjections')
+                            : (lang === "fr" ? 'Présent + subjonctif présent' : 'Present + present subjunctive'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Subjonctif présent' : 'Present subjunctive'),
+                    summary: lang === "fr" ? '→ Drames psychologiques, dilemmes' : '→ Psychological dramas, dilemmas',
+                };
+            
+            case 11: // Mélancolie Composée / Compound Melancholy
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                            : (lang === "fr" ? 'Passé composé + plus-que-parfait' : 'Present perfect + pluperfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + conditionnel passé' : 'Imperfect + past conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                            : (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                            : (lang === "fr" ? 'Plus-que-parfait + conditionnel passé' : 'Pluperfect + past conditional'),
+                    summary: lang === "fr" ? '→ Regrets, introspection nostalgique' : '→ Regrets, nostalgic introspection',
+                };
+            
+            case 12: // Urgence Narrative / Narrative Urgency
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + participe présent' : 'Present + present participle'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + adjectifs courts' : 'Present + short adjectives'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent + impératif' : 'Present + imperative')
+                            : (lang === "fr" ? 'Impératif + présent' : 'Imperative + present'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + infinitif' : 'Present + infinitive'),
+                    summary: lang === "fr" ? '→ Crise en cours, compte à rebours' : '→ Ongoing crisis, countdown',
+                };
+            
+            case 13: // Présent Émotionnel / Emotional Present
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + participe présent' : 'Present + present participle'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent + adjectifs' : 'Present + adjectives')
+                            : (lang === "fr" ? 'Présent + adjectifs expressifs' : 'Present + expressive adjectives'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent + interjections' : 'Present + interjections')
+                            : (lang === "fr" ? 'Présent + style expressif' : 'Present + expressive style'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + exclamations' : 'Present + exclamations'),
+                    summary: lang === "fr" ? '→ Émotions intenses, introspections vives' : '→ Intense emotions, vivid introspections',
+                };
+            
+            case 14: // Présent Introspectif / Introspective Present
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + gérondif' : 'Present + gerund'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent + adjectifs' : 'Present + adjectives')
+                            : (lang === "fr" ? 'Présent + métaphores' : 'Present + metaphors'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Style indirect libre' : 'Free indirect style'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + subjonctif présent' : 'Present + present subjunctive'),
+                    summary: lang === "fr" ? '→ Réflexions profondes, analyse des émotions' : '→ Deep reflections, emotional analysis',
+                };
+            
+            case 15: // Présent Historique / Historical Present
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + passé simple' : 'Present + simple past'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + imparfait' : 'Present + imperfect'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + passé composé' : 'Present + present perfect'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + plus-que-parfait' : 'Present + pluperfect'),
+                    summary: lang === "fr" ? '→ Histoires historiques avec intensité immédiate' : '→ Historical stories with immediate intensity',
+                };
+            
+            case 16: // Passé Réflexif / Reflective Past
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                            : (lang === "fr" ? 'Passé composé + plus-que-parfait' : 'Present perfect + pluperfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + conditionnel passé' : 'Imperfect + past conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                            : (lang === "fr" ? 'Style indirect libre' : 'Free indirect style'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + subjonctif passé' : 'Imperfect + past subjunctive'),
+                    summary: lang === "fr" ? '→ Récits introspectifs, auto-analyse' : '→ Introspective narratives, self-analysis',
+                };
+            
+            case 17: // Futur Prophétique / Prophetic Future
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur simple + présent gnomique' : 'Simple future + gnomic present'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                        : level === 2
+                            ? (lang === "fr" ? 'Futur simple' : 'Simple future')
+                            : (lang === "fr" ? 'Futur antérieur' : 'Future perfect'),
+                    summary: lang === "fr" ? '→ Prophéties, visions apocalyptiques' : '→ Prophecies, apocalyptic visions',
+                };
+            
+            case 18: // Conditionnel Visionnaire / Visionary Conditional
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel passé' : 'Past conditional'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel passé' : 'Past conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel présent + subjonctif' : 'Present conditional + subjunctive'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                        : level === 2
+                            ? (lang === "fr" ? 'Conditionnel présent' : 'Present conditional')
+                            : (lang === "fr" ? 'Conditionnel passé' : 'Past conditional'),
+                    summary: lang === "fr" ? '→ Mondes parallèles, uchronies' : '→ Parallel worlds, alternate histories',
+                };
+            
+            case 19: // Imparfait Poétique / Poetic Imperfect
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + participe présent' : 'Imperfect + present participle'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait + adjectifs' : 'Imperfect + adjectives')
+                            : (lang === "fr" ? 'Imparfait + métaphores' : 'Imperfect + metaphors'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Style poétique libre' : 'Free poetic style'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + subjonctif présent' : 'Imperfect + present subjunctive'),
+                    summary: lang === "fr" ? '→ Lyrisme, poésie narrative' : '→ Lyricism, narrative poetry',
+                };
+            
+            case 20: // Second Person Narrative / Narration à la deuxième personne
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + imparfait' : 'Present + imperfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + conditionnel présent' : 'Present + present conditional'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + style direct' : 'Present + direct style'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + conditionnel présent' : 'Present + present conditional'),
+                    summary: lang === "fr" ? '→ Immersion totale, récits interactifs' : '→ Total immersion, interactive narratives',
+                };
+
+            default:
+                return {
+                    actions: level === 1
+                        ? (lang === "fr" ? 'Passé composé' : 'Present perfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Passé simple' : 'Simple past')
+                            : (lang === "fr" ? 'Passé simple + passé antérieur' : 'Simple past + past perfect'),
+                    descriptions: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                            : (lang === "fr" ? 'Imparfait + plus-que-parfait' : 'Imperfect + pluperfect'),
+                    dialogues: level === 1
+                        ? (lang === "fr" ? 'Présent' : 'Present')
+                        : level === 2
+                            ? (lang === "fr" ? 'Présent' : 'Present')
+                            : (lang === "fr" ? 'Présent + passé composé' : 'Present + present perfect'),
+                    thoughts: level === 1
+                        ? (lang === "fr" ? 'Imparfait' : 'Imperfect')
+                        : level === 2
+                            ? (lang === "fr" ? 'Plus-que-parfait' : 'Pluperfect')
+                            : (lang === "fr" ? 'Plus-que-parfait + subjonctif passé' : 'Pluperfect + past subjunctive'),
+                    summary: lang === "fr" ? '→ Narrations épurées, style classique' : '→ Clean narratives, classical style',
+                };
+        }
+    }
+    
+    static getDialogueType(value: number, level: number, lang: "fr" | "en"): string {
+        if (lang === "fr") {
+            // Version française existante
+            if (level === 1 /* Débutant - Secondaire 5 */) {
+                switch (value) {
+                    case 1:
+                        return 'Dialogue direct - Paroles exactes (ex: "Je t\'aime !")';
+                    case 2:
+                        return 'Dialogue indirect - Résumé par le narrateur (ex: Il dit qu\'il m\'aime)';
+                    default:
+                        return 'Dialogue direct';
+                }
+            } else if (level === 2 /* Intermédiaire - Collégial */) {
+                switch (value) {
+                    case 1:
+                        return 'Dialogue direct';
+                    case 2:
+                        return 'Dialogue indirect';
+                    case 3:
+                        return 'Dialogue mixte (ex: "Je t\'aime" dit-il, puis explique ses sentiments)';
+                    default:
+                        return 'Dialogue direct';
+                }
+            } else if (level === 3 /* Avancé - Universitaire/Littéraire */) {
+                switch (value) {
+                    case 1:
+                        return 'Dialogue direct';
+                    case 2:
+                        return 'Dialogue indirect';
+                    case 3:
+                        return 'Dialogue mixte';
+                    case 4:
+                        return 'Monologue intérieur (ex: *Je ne peux pas le perdre...*)';
+                    default:
+                        return 'Dialogue direct';
+                }
+            }
+        } else if (lang === "en") {
+            // Version anglaise canadienne
+            if (level === 1 /* Beginner - Grade 12 level */) {
+                switch (value) {
+                    case 1:
+                        return 'Direct dialogue - Exact words (e.g., "I love you!")';
+                    case 2:
+                        return 'Indirect dialogue - Summarized by narrator (e.g., He said that he loved me)';
+                    default:
+                        return 'Direct dialogue';
+                }
+            } else if (level === 2 /* Intermediate - College level */) {
+                switch (value) {
+                    case 1:
+                        return 'Direct dialogue';
+                    case 2:
+                        return 'Indirect dialogue';
+                    case 3:
+                        return 'Mixed dialogue (e.g., "I love you," he said, then explained his feelings)';
+                    default:
+                        return 'Direct dialogue';
+                }
+            } else if (level === 3 /* Advanced - University/Literary level */) {
+                switch (value) {
+                    case 1:
+                        return 'Direct dialogue';
+                    case 2:
+                        return 'Indirect dialogue';
+                    case 3:
+                        return 'Mixed dialogue';
+                    case 4:
+                        return 'Interior monologue (e.g., *I cannot lose him...*)';
+                    default:
+                        return 'Direct dialogue';
+                }
+            }
+        }
+        
+        return lang === "fr" ? 'Dialogue direct' : 'Direct dialogue';
+    }
+    static getLanguage(value: number): string {
+        switch (value) {
+            case 1: // Français Canada
+                return 'Français Canada';
+            case 2: // Français France
+                return 'Français France';
+            case 3: // Français Québécois
+                return 'Français Québécois';
+            case 4: // Anglais
+                return 'English Canada';
+            default:
+                return 'Français Canada';
+        }
+    }
+
+    static getFormat(value: number): string {
+        switch (value) {
+            case 1: // Français Canada (espace fine « texte »)
+            case 3: // Français Québécois
+                return '«dialogue» - avec guillemet - [Espace fine insécable]';
+            case 2: // Français France
+                return '« dialogue » - avec guillemet -  [Espace insécable standard]';
+            case 4: // Anglais
+                return `"dialogue" - or with a dash - [No space]`;
+            default:
+                return 'Format : « dialogue » - avec guillemet - [Espace fine insécable]';
+        }
+    }
+    
+    static getNarrativePerson(value: number, level: number, lang: "fr" | "en"): string {
+        if (level === 1) {
+            switch (value) {
+                case 1:
+                    return lang === "fr" ? 'Première personne (Je acteur)' : 'First Person (I as actor)';
+                case 3:
+                    return lang === "fr" ? 'Troisième omnisciente - Narration globale' : 'Third Person Omniscient - Global narration';
+                default:
+                    return 'Première personne';
+            }
+        } else if (level === 2) {
+            switch (value) {
+                case 1:
+                    return lang === "fr" ? 'Première personne (Je acteur)' : 'First Person (I as actor)';
+                case 2:
+                    return lang === "fr" ? 'Première personne (Je témoin) - Observateur' : 'First Person (I as witness) - Observer';
+                case 3:
+                    return lang === "fr" ? 'Troisième omnisciente' : 'Third Person Omniscient';
+                case 4:
+                    return lang === "fr" ? 'Troisième limitée - Focus sur un personnage' : 'Third Person Limited - Focus on a character';
+                default:
+                    return 'Première personne';
+            }
+        } else if (level === 3) {
+            switch (value) {
+                case 1:
+                    return lang === "fr" ? 'Première personne (Je acteur)' : 'First Person (I as actor)';
+                case 2:
+                    return lang === "fr" ? 'Première personne (Je témoin) - Observateur' : 'First Person (I as witness) - Observer';
+                case 3:
+                    return lang === "fr" ? 'Troisième omnisciente' : 'Third Person Omniscient';
+                case 4:
+                    return lang === "fr" ? 'Troisième limitée - Focus sur un personnage' : 'Third Person Limited - Focus on a character';
+                case 5:
+                    return lang === "fr" ? 'Deuxième personne (Tu) - Immersion forte' : 'Second Person (You) - Strong immersion';
+                case 6:
+                    return lang === "fr" ? 'Nous collectif - Voix chorale' : 'We Collective - Choral voice';
+                default:
+                    return lang === "fr" ? 'Troisième omnisciente' : 'Third Person Omniscient';
+            }
+        }
+        return 'Première personne';
+    }
+
+    static getStoryState(value: number): string {
+        switch (value) {
+            case 0:
+                return 'Continue à partir de la mise en contexte avec cela :';
+            case 1:
+                return 'Débutons le chapitre avec :';
+            case 2:
+                return 'Continue à partir de la mise en contexte et ferme le chapitre avec :';
+            case 3:
+                return `Commençons le l'histoire avec :`;
+            case 4:
+                return 'Terminons l\'histoire avec :';
+            default:
+                return 'Continue à partir de la mise en contexte avec cela :';
+        }
+    }
+}
diff --git a/electron/database/models/User.ts b/electron/database/models/User.ts
new file mode 100644
index 0000000..8563a3a
--- /dev/null
+++ b/electron/database/models/User.ts
@@ -0,0 +1,885 @@
+import UserRepo, {
+    BasicUserCredentials,
+    GuideTourResult,
+    PasswordResponse,
+    TOTPQuery,
+    UserAccountQuery,
+    UserAiUsageResult,
+    UserAPIKeyResult,
+    UserInfosQueryResponse,
+    UserQueryResponse,
+    UserSubscription
+} from "../repositories/user.repo";
+import {FetchQueryResponse} from "../../config/SharedInterface";
+import System, {EncryptedKey, EncryptedUserKey, UserKey} from "./System";
+import {FastifyInstance} from "fastify";
+import EmailTemplate from "./EmailTemplate";
+import path from "path";
+import fs from "fs";
+import {Secret, TOTP} from "otpauth";
+import Book, {BookProps} from "./Book";
+import {JWT} from "@fastify/jwt";
+import {AIBrand} from "./AI";
+import {ConflictError, NotFoundError} from "../error";
+import {getLanguage} from "../context";
+import Subscription, { SubscriptionInfo } from "./Subscription";
+
+export type UserLanguage = 'fr' | 'en';
+
+export interface LoginData{
+    valid:boolean;
+    token?:string;
+    id?:string;
+    message?:string;
+}
+
+export interface UserAPIKey {
+    brand: AIBrand,
+    key: string;
+}
+
+interface UserAccount{
+    firstName:string;
+    lastName:string;
+    username:string
+    authorName:string;
+    email:string;
+}
+
+export interface TOTPData{
+    totpCode:string;
+}
+
+export interface GuideTour {
+    [key: string]: boolean;
+}
+
+export interface UserSubscriptionProps {
+    userId: string;
+    subType: string;
+    subTier: number;
+    startDate: string;
+    endDate: string;
+    status: number;
+}
+
+interface UserSubscriptionInfo {
+    subType: string;
+    subTier: number;
+    status: boolean;
+}
+
+export default class User{
+
+    private readonly id:string;
+    private firstName: string;
+    private lastName: string;
+    private username: string;
+    private email: string;
+    private platform: string;
+    private accountVerified: boolean;
+    private authorName: string;
+    private writingLang: number;
+    private writingLevel: number;
+    private ritePoints: number;
+    private groupId: number;
+    private balancedCredits: number;
+    private termsAccepted: boolean;
+
+    constructor(id:string){
+        this.id = id;
+        this.firstName = '';
+        this.lastName = '';
+        this.username = '';
+        this.email = '';
+        this.platform = '';
+        this.accountVerified = false;
+        this.authorName = '';
+        this.writingLang = 0;
+        this.writingLevel = 1;
+        this.ritePoints = 0;
+        this.groupId = 0;
+        this.balancedCredits = 0;
+        this.termsAccepted = false;
+    }
+    
+    public async getUserInfos(): Promise<void> {
+        const data: UserInfosQueryResponse = await UserRepo.fetchUserInfos(this.id);
+        const userKey: string = await this.getUserKey(data.user_meta);
+        this.firstName = System.decryptDataWithUserKey(data.first_name, userKey);
+        this.lastName = System.decryptDataWithUserKey(data.last_name, userKey);
+        this.username = System.decryptDataWithUserKey(data.username, userKey);
+        this.email = System.decryptDataWithUserKey(data.email, userKey);
+        this.platform = data.plateform;
+        this.accountVerified = data.account_verified === 1;
+        this.authorName = data.author_name ? System.decryptDataWithUserKey(data.author_name, userKey) : '';
+        this.writingLang = data.writing_lang ? data.writing_lang : 1;
+        this.writingLevel = data.writing_level ? data.writing_level : 1;
+        this.groupId = data.user_group ? data.user_group : 0;
+        this.ritePoints = data.rite_points ? data.rite_points : 0;
+        this.balancedCredits = data.credits_balance ? data.credits_balance : 0;
+        this.termsAccepted = data.term_accepted === 1;
+    }
+    
+    public static async returnUserInfos(userId: string, plateforme: string) {
+        const user: User = new User(userId);
+        await user.getUserInfos();
+        const books: BookProps[] = await Book.getBooks(userId);
+        const guideTourResult: GuideTourResult[] = await UserRepo.fetchGuideTour(userId, plateforme);
+        const guideTour: GuideTour[] = [];
+        const requestSubscription: UserSubscriptionProps[] = await User.getSubscription(userId);
+        const userSubscriptions:SubscriptionInfo = await Subscription.getSubscriptionInfo(userId);
+        const requestKeys: UserAPIKey[] = await User.getAPIKey(userId);
+        let moneySpentThisMonth: number = 0;
+        if (requestKeys.length > 0) {
+            moneySpentThisMonth = await User.moneySpentThisMonth(userId)
+        }
+        const subscriptions: UserSubscriptionInfo[] = [];
+        for (const userSubscriptionProp of requestSubscription) {
+            subscriptions.push({
+                subType: userSubscriptionProp.subType,
+                subTier: userSubscriptionProp.subTier,
+                status: userSubscriptionProp.status === 1
+            });
+        }
+
+        if (guideTourResult) {
+            guideTourResult.forEach((tour: GuideTourResult): void => {
+                guideTour.push({
+                    [tour.step_tour]: true
+                });
+            });
+        }
+        return {
+            id: user.getId(),
+            name: user.getFirstName(),
+            lastName: user.getLastName(),
+            username: user.getUsername(),
+            email: user.getEmail(),
+            accountVerified: user.isAccountVerified(),
+            authorName: user.getAuthorName(),
+            writingLang: user.getWritingLang(),
+            writingLevel: user.getWritingLevel(),
+            ritePoints: user.getRitePoints(),
+            groupId: user.getGroupId(),
+            termsAccepted: user.isTermsAccepted(),
+            guideTour: guideTour,
+            subscription: subscriptions,
+            aiUsage: moneySpentThisMonth,
+            creditsBalance: userSubscriptions.totalCredits,
+            apiKeys: {
+                gemini: !!requestKeys.find((key: UserAPIKey): boolean => {
+                    return key.brand === 'gemini'
+                }),
+                openai: !!requestKeys.find((key: UserAPIKey): boolean => {
+                    return key.brand === 'openai'
+                }),
+                anthropic: !!requestKeys.find((key: UserAPIKey): boolean => {
+                    return key.brand === 'anthropic'
+                }),
+            },
+            books: books.map((book: BookProps) => {
+                return {
+                    bookId: book.id,
+                    title: book.title,
+                    subTitle: book.subTitle,
+                };
+            })
+        }
+    }
+    
+    public static async isTwoFactorEnabled(userId: string): Promise<boolean> {
+        return UserRepo.isTwoFactorEnabled(userId);
+    }
+    
+    public static async changePassword(userId: string, password: string, newPassword: string, email: string): Promise<boolean> {
+        if (await User.validUser(email, password)) {
+            const newPasswordHash: string = await System.hashPassword(newPassword);
+            return await UserRepo.updatePassword(userId, System.hashElement(email), newPasswordHash);
+        } else {
+            throw new Error('Your password is incorrect');
+        }
+    }
+    
+    public static async deleteAccount(userId: string, email: string): Promise<boolean> {
+        return UserRepo.deleteAccount(userId, System.hashElement(email));
+    }
+    
+    public static async resetPassword(newPassword: string, email: string, verifyCode: string): Promise<boolean> {
+        const encryptPassword: string = await System.hashPassword(newPassword);
+        const user: PasswordResponse = await UserRepo.verifyUserAuth(System.hashElement(email), verifyCode)
+        const userId: string = user.user_id;
+        return await UserRepo.updatePassword(userId, System.hashElement(email), encryptPassword);
+    }
+    
+    public static async verifyCode(verifyCode: string, email: string): Promise<string> {
+        return await UserRepo.fetchVerifyCode(System.hashElement(email), verifyCode);
+    }
+    
+    static async subscribeToBeta(email: string): Promise<boolean> {
+        let checkEmail: string[] = email.split('@');
+        checkEmail = checkEmail[1].split('.');
+        if (checkEmail[0] === 'gmail' || checkEmail[0] === 'hotmail' || checkEmail[0] === 'outlook') {
+            if (await UserRepo.checkBetaSubscriber(email)) {
+                throw new Error(`L'adresse courriel est déjà enregistré.`);
+            }
+            const insertEmail: boolean = await UserRepo.insertBetaSubscriber(email);
+            if (insertEmail) {
+                System.sendEmailTo(email, 'Inscription à la bêta.', '', EmailTemplate('newsletter', {}));
+                return insertEmail;
+            } else {
+                throw new Error('Une erreur est survenue lors de l\'inscription à la bêta.');
+            }
+        } else {
+            throw new Error('Votre adresse email n\'est pas valide.');
+        }
+    }
+    
+    public static async addUser(firstName: string, lastName: string, username: string, email: string, notEncryptPassword: string, userId: string | null = null, provider: string = 'credential', socialId: string | null = null, tempAdd: boolean = false): Promise<string> {
+        const originEmail:string = System.hashElement(email);
+        const originUsername:string = System.hashElement(username);
+        await this.checkUser(originUsername, originEmail);
+        const lang: "fr" | "en" = getLanguage()
+        if (tempAdd) {
+            const password:string = notEncryptPassword ? await System.hashPassword(notEncryptPassword) : '';
+            const newUserId: string = System.createUniqueId();
+            await UserRepo.insertTempUser(newUserId, firstName, lastName, username, originUsername, email, originEmail, password);
+            await User.sendVerifyCode(username, email);
+            return newUserId;
+        } else {
+            if (!userId) {
+                throw new Error(lang === 'fr' ? 'L\'identifiant utilisateur est requis.' : 'User ID is required.');
+            }
+            const encryptData: EncryptedUserKey = await System.generateAndEncryptUserKey(userId);
+            const userKey: string = encryptData.userKey;
+            const encryptFirstName: string = System.encryptDataWithUserKey(firstName, userKey);
+            const encryptLastName: string = System.encryptDataWithUserKey(lastName, userKey);
+            const encryptUsername: string = System.encryptDataWithUserKey(username, userKey);
+            const encryptEmail: string = System.encryptDataWithUserKey(email, userKey);
+            const originalEmail: string = System.hashElement(email);
+            const originalUsername: string = System.hashElement(username);
+            const meta: string = System.encryptDateKey(userId);
+            const insertedUserId: string = await UserRepo.insertUser(userId, encryptFirstName, encryptLastName, encryptUsername, originalUsername, encryptEmail, originalEmail, notEncryptPassword, meta, socialId, provider);
+            await System.storeUserKey(userId, encryptData.encryptedKey);
+            await UserRepo.deleteTempUser(userId);
+            return insertedUserId;
+        }
+    }
+    
+    public static async updateUserInfos(userKey: string, userId: string, firstName: string, lastName: string, username: string, email: string, authorName?: string): Promise<boolean> {
+        const encryptFirstName:string = System.encryptDataWithUserKey(firstName,userKey);
+        const encryptLastName:string = System.encryptDataWithUserKey(lastName,userKey);
+        const encryptUsername:string = System.encryptDataWithUserKey(username,userKey);
+        const encryptEmail:string = System.encryptDataWithUserKey(email,userKey);
+        const originalEmail:string = System.hashElement(email);
+        const originalUsername:string = System.hashElement(username);
+        const userMeta:string = System.encryptDateKey(userId);
+        let encryptAuthorName:string = '';
+        let originalAuthorName: string = '';
+        if (authorName){
+            encryptAuthorName = System.encryptDataWithUserKey(authorName,userKey);
+            originalAuthorName = System.hashElement(authorName);
+        }
+        return UserRepo.updateUserInfos(userId, encryptFirstName, encryptLastName, encryptUsername, originalUsername, encryptEmail, originalEmail, userMeta, originalAuthorName, encryptAuthorName);
+    }
+    public async getUserKey(metaKey:string,isNeedToBeDecrypt:boolean=true,keys?:UserKey[]):Promise<string>{
+        let meta:string = '';
+        if (isNeedToBeDecrypt){
+            meta = System.decryptDateKey(this.id,metaKey);
+        } else {
+            meta = metaKey;
+        }
+        if (keys){
+            return System.getClosestPreviousKey(keys,meta);
+        } else {
+            const userKey:FetchQueryResponse<EncryptedKey> = await System.getUserKey(this.id,meta);
+            if (userKey.data){
+                return userKey.data?.encrypted_key;
+            } else {
+                return '';
+            }
+        }
+    }
+
+    public static async checkUserName(username:string):Promise<boolean>{
+        return UserRepo.fetchUserName(username);
+    }
+
+    public static async checkEmail(email:string):Promise<boolean>{
+        return UserRepo.fetchEmail(email);
+    }
+    
+    static getLevelDetail(level: number, lang: "fr" | "en"): string {
+        if (lang === "fr") {
+            switch (level) {
+                case 1: // Débutant français
+                    return `**Niveau : Débutant**
+**Objectif** : Texte écrit par un élève de secondaire qui apprend encore à écrire en français.
+**Lexique** :
+- **Vocabulaire limité** : Répétition des mêmes mots simples, manque de synonymes.
+- **Exemples typiques** : "il y a", "c'est", "très", "beaucoup", "faire", "aller", "dire".
+- **Caractéristiques** : Anglicismes possibles, répétitions non voulues.
+**Structure** :
+- **Phrases courtes par nécessité** : 8-15 mots (le français tolère plus de mots).
+- **Constructions simples** : Sujet-Verbe-Complément, quelques "qui/que" basiques.
+- **Coordinations basiques** : "et", "mais", "alors", "après".
+- **Erreurs typiques** : "Il y a des arbres qui sont grands" au lieu de "Les arbres sont grands".
+**Style littéraire** :
+- **Descriptions factuelle** : "La forêt était sombre et silencieuse."
+- **Pas de figures de style** : Tentatives maladroites si présentes.
+- **Français scolaire** : Formulations apprises par cœur.
+**Exemples comparatifs** :
+✅ "Marc a couru dans la forêt. Il avait très peur des bruits qu'il entendait."
+❌ "Marc s'élança dans les profondeurs sylvestres, son cœur battant la chamade..."
+`;
+                
+                case 2: // Intermédiaire français
+                    return `**Niveau : Intermédiaire**
+**Objectif** : Texte écrit par un étudiant de cégep/université qui expérimente le style français.
+**Lexique** :
+- **Vocabulaire enrichi** : Recherche de synonymes, mots plus soutenus.
+- **Exemples** : "s'élancer", "contempler", "mystérieux", "murmurer", "lueur".
+- **Tentatives stylistiques** : Parfois réussies, parfois précieuses.
+**Structure** :
+- **Phrases moyennes à longues** : 12-25 mots, avec subordinations.
+- **Constructions élaborées** : Relatives multiples, quelques inversions.
+- **Style français émergent** : Tentatives de périodes, de nuances.
+- **Connecteurs plus variés** : "cependant", "néanmoins", "tandis que".
+**Style littéraire** :
+- **Premières métaphores** : Simples mais françaises ("tel un fantôme").
+- **Descriptions étoffées** : Adjectifs et compléments circonstanciels.
+- **Registre soutenu recherché** : Parfois forcé.
+**Exemples comparatifs** :
+✅ "Marc s'élança dans la forêt obscure, tandis que chaque bruissement mystérieux faisait naître en lui une crainte sourde."
+❌ "Marc se précipita avec véhémence dans les méandres ténébreux de la sylve ancestrale..."
+`;
+                
+                case 3: // Avancé français
+                    return `**Niveau : Avancé**
+**Objectif** : Texte écrit par un écrivain professionnel maîtrisant la rhétorique française.
+**Lexique** :
+- **Richesse lexicale maîtrisée** : Précision du mot juste, nuances subtiles.
+- **Registres variés** : Du familier au soutenu selon l'effet recherché.
+- **Synonymie élégante** : Évitement des répétitions par art, non par contrainte.
+**Structure** :
+- **Périodes françaises** : Phrases longues et rythmées (20-40 mots possibles).
+- **Architecture complexe** : Subordinations enchâssées, incises, inversions maîtrisées.
+- **Rythme classique** : Alternance entre brièveté saisissante et amplitude oratoire.
+- **Ponctuation expressive** : Points-virgules, deux-points, parenthèses.
+**Style littéraire** :
+- **Figures maîtrisées** : Métaphores filées, antithèses, chiasmes.
+- **Tradition française** : Élégance, clarté, harmonie des sonorités.
+- **Sous-entendus et allusions** : Subtilité dans l'évocation.
+**Exemples comparatifs** :
+✅ "Marc courut." (Simplicité voulue)
+✅ "Dans l'entrelacement des ombres que la lune, filtrant à travers la ramure, dessinait sur le sol moussu, Marc discernait les échos de sa propre terreur ; terreur ancestrale, née de ce dialogue éternel entre l'homme et la nuit."
+`;
+                default:
+                    return ``;
+            }
+        } else { // English Canadian
+            switch (level) {
+                case 1: // Beginner English
+                    return `**Level: Beginner**
+**Target**: Text written by a high school student still learning English composition.
+**Vocabulary**:
+- **Limited word choice**: Repetition of basic words, simple alternatives.
+- **Typical examples**: "said", "went", "got", "thing", "stuff", "really", "very".
+- **Characteristics**: Overuse of "and then", simple connectors.
+**Structure**:
+- **Short, choppy sentences**: 5-10 words (English naturally shorter).
+- **Basic constructions**: Subject-Verb-Object, simple coordination.
+- **Limited variety**: Mostly declarative sentences.
+- **Common errors**: Run-on sentences with "and", fragments.
+**Literary style**:
+- **Plain description**: "The forest was dark. It was scary."
+- **No literary devices**: Attempts at metaphors usually failed.
+- **Direct emotion**: "He was afraid" (English directness).
+**Comparative examples**:
+✅ "Mark ran into the forest. He was scared. The trees looked big and dark."
+❌ "Mark ventured forth into the sylvan depths, his heart pounding with trepidation..."
+`;
+                
+                case 2: // Intermediate English
+                    return `**Level: Intermediate**
+**Target**: Text written by a college student developing English writing skills.
+**Vocabulary**:
+- **Expanded vocabulary**: Some sophisticated words, better word choice.
+- **Examples**: "ventured", "glimpsed", "mysterious", "whispered", "shadowy".
+- **Characteristics**: Occasional overreach, some pretentious word choices.
+**Structure**:
+- **Varied sentence length**: 8-18 words, some complex sentences.
+- **Better flow**: Proper use of conjunctions, some subordination.
+- **Paragraph development**: Topic sentences, basic transitions.
+- **English rhythm**: Shorter than French but with variation.
+**Literary style**:
+- **Simple imagery**: Basic metaphors and similes that work.
+- **Show don't tell**: Attempts at indirect description.
+- **English conciseness**: Getting to the point while adding style.
+**Comparative examples**:
+✅ "Mark plunged into the dark forest. Every sound made him jump, like whispers from invisible watchers."
+❌ "Mark precipitously advanced into the tenebrous woodland whilst phantasmagorical emanations..."
+`;
+                
+                case 3: // Advanced English
+                    return `**Level: Advanced**
+**Target**: Text written by a professional English-speaking author.
+**Vocabulary**:
+- **Precise word choice**: Economy of language, powerful verbs.
+- **Understated elegance**: Sophisticated but not showy.
+- **Anglo-Saxon vs. Latin**: Strategic use of both registers.
+**Structure**:
+- **Masterful variety**: From punchy fragments to flowing periods.
+- **English rhythm**: Natural speech patterns, emphasis through structure.
+- **Controlled complexity**: Never convoluted, always clear.
+- **Strategic brevity**: Power in conciseness.
+**Literary style**:
+- **Subtle imagery**: Metaphors that illuminate, don't decorate.
+- **Understated power**: English preference for implication over elaboration.
+- **Voice and tone**: Distinctive style through restraint and precision.
+- **Anglo tradition**: Clarity, wit, emotional resonance through simplicity.
+**Comparative examples**:
+✅ "Mark ran. The forest swallowed him." (English power in brevity)
+✅ "The shadows moved between the trees like living things, and Mark felt something ancient watching from the darkness—something that had been waiting." (Controlled complexity)
+`;
+                default:
+                    return ``;
+            }
+        }
+    }
+    
+    static getAudienceDetail(level: number, lang: "fr" | "en"): string {
+        if (lang === "fr") {
+            switch (level) {
+                case 1: // Débutant
+                    return `**Niveau : Débutant**
+    **Objectif** : Texte accessible à un collégien (18-22 ans).
+    **Lexique** :
+    - **Priorité absolue** : Mots du quotidien, fréquents dans la langue parlée.
+    - **Exemples autorisés** : "marcher", "voir", "dire", "beau", "peur", "lumière".
+    - **Mots à éviter** : "luminescence", "éthéré", "volutes", "chuchotements", "centenaires".
+    **Structure** :
+    - **Longueur moyenne maximale par phrase** : 10 mots.
+    - **Interdit** : Phrases composées, subordonnées, ou parenthèses.
+    - **Style des descriptions** : Directes et visuelles (ex: "La forêt était sombre" → pas de "La forêt respirait la nuit").
+    **Style littéraire** :
+    - **Interdits** : Métaphores, similes, ou figures de style.
+    - **Priorité** : Clarté et simplicité absolue.
+    **Exemples comparatifs** :
+    ❌ "La brume enveloppait les arbres avec une grâce éthérée" → ✅ "La brume couvrait les arbres."
+    ❌ "Elle courait, les jambes tremblantes, vers la lumière" → ✅ "Elle courait vers une lumière."
+    `;
+                
+                case 2: // Intermédiaire
+                    return `
+    **Niveau : Intermédiaire**
+    **Objectif** : Texte pour un étudiant universitaire (22-30 ans).
+    **Lexique** :
+    - **Priorité** : Vocabulaire varié mais compréhensible (ex: "murmurer", "luminescent", "mystère", "sentinelles").
+    - **Mots à éviter** : Termes littéraires complexes (ex: "volutes", "centenaires", "éthéré").
+    **Structure** :
+    - **Longueur moyenne maximale par phrase** : 18 mots.
+    - **Autorisé** : Phrases composées simples (ex: "Elle courait, mais la forêt était dense").
+    - **Descriptions** : Métaphores basiques (ex: "La forêt respirait la nuit").
+    **Style littéraire** :
+    - **Autorisé** : Similes simples (ex: "comme un fantôme").
+    - **Interdit** : Figures de style complexes (antithèses, anaphores).
+    **Exemples comparatifs** :
+    ❌ "Les arbres, semblables à des sentinelles de pierre, veillaient" → ✅ "Les arbres ressemblaient à des gardiens."
+    ❌ "La lueur dansante évoquait un espoir éphémère" → ✅ "La lumière clignotait comme un espoir."
+    `;
+                
+                case 3: // Avancé
+                    return `
+    **Niveau : Avancé**
+    **Objectif** : Texte littéraire d'un professionnel littéraire, ayant un diplôme universitaire.
+    **Lexique** :
+    - **Priorité** : Vocabulaire riche et littéraire (ex: "volutes", "centenaires", "éthéré", "luminescence").
+    - **Mots à éviter** : Termes simples jugés "banals" (ex: "marcher" → préférer "arpenter", "errer").
+    **Structure** :
+    - **Longueur maximale par phrase** : aucune limite.
+    - **Autorisé** : Phrases complexes et enchaînées (ex: "Parmi les ombres dansantes, elle discerna une lueur vacillante, symbole de l'espoir qui s'évanouissait").
+    - **Descriptions** : Métaphores poétiques et figures de style avancées.
+    **Style littéraire** :
+    - **Priorité** : Atmosphère immersive et langage élégant.
+    - **Autorisé** : Antithèses, anaphores, et métaphores multi-niveaux.
+    **Exemples comparatifs** :
+    ✅ "Les volutes de brume, tels des spectres en quête d'écho, enveloppaient les troncs centenaires dans un ballet spectral."
+    ✅ "Luminescence vacillante, espoir éphémère : les deux dansaient une dernière valse avant l'obscurité."
+    `;
+                default:
+                    return ``;
+            }
+        } else { // English Canadian
+            switch (level) {
+                case 1: // Beginner (Grade 11/Secondary 5 level)
+                    return `
+    **Level: Beginner**
+    **Target**: Text accessible to a Grade 11 student (Secondary 5 equivalent).
+    **Vocabulary**:
+    - **Absolute priority**: Common everyday words, frequent in spoken language.
+    - **Allowed examples**: "walk", "see", "say", "nice", "scared", "light".
+    - **Words to avoid**: "luminescence", "ethereal", "tendrils", "whispers", "ancient".
+    **Structure**:
+    - **Maximum average sentence length**: 10 words.
+    - **Forbidden**: Compound sentences, subordinate clauses, or parentheses.
+    - **Description style**: Direct and visual (e.g., "The forest was dark" → not "The forest breathed with darkness").
+    **Literary style**:
+    - **Forbidden**: Metaphors, similes, or figures of speech.
+    - **Priority**: Absolute clarity and simplicity.
+    **Comparative examples**:
+    ❌ "The mist enveloped the trees with ethereal grace" → ✅ "The mist covered the trees."
+    ❌ "She ran, her legs trembling, toward the light" → ✅ "She ran toward a light."
+    `;
+                
+                case 2: // Intermediate (CEGEP/College level)
+                    return `
+    **Level: Intermediate**
+    **Target**: Text for a CEGEP/College student.
+    **Vocabulary**:
+    - **Priority**: Varied but understandable vocabulary (e.g., "murmur", "luminous", "mystery", "sentinels").
+    - **Words to avoid**: Complex literary terms (e.g., "tendrils", "ancient", "ethereal").
+    **Structure**:
+    - **Maximum average sentence length**: 18 words.
+    - **Allowed**: Simple compound sentences (e.g., "She ran, but the forest was thick").
+    - **Descriptions**: Basic metaphors (e.g., "The forest breathed in the night").
+    **Literary style**:
+    - **Allowed**: Simple similes (e.g., "like a ghost").
+    - **Forbidden**: Complex figures of speech (antithesis, anaphora).
+    **Comparative examples**:
+    ❌ "The trees, like stone sentinels, stood watch" → ✅ "The trees looked like guardians."
+    ❌ "The dancing light evoked fleeting hope" → ✅ "The light flickered like hope."
+    `;
+                
+                case 3: // Advanced (University/Professional writer level)
+                    return `
+    **Level: Advanced**
+    **Target**: Literary text from a professional writer or bestselling author with university education.
+    **Vocabulary**:
+    - **Priority**: Rich and literary vocabulary (e.g., "tendrils", "ancient", "ethereal", "luminescence").
+    - **Words to avoid**: Simple terms deemed "mundane" (e.g., "walk" → prefer "traverse", "wander").
+    **Structure**:
+    - **Maximum sentence length**: No limit.
+    - **Allowed**: Complex and chained sentences (e.g., "Among the dancing shadows, she discerned a flickering light, a symbol of hope that was fading away").
+    - **Descriptions**: Poetic metaphors and advanced figures of speech.
+    **Literary style**:
+    - **Priority**: Immersive atmosphere and elegant language.
+    - **Allowed**: Antithesis, anaphora, and multi-layered metaphors.
+    **Comparative examples**:
+    ✅ "Tendrils of mist, like spectres seeking echo, enveloped the ancient trunks in a ghostly ballet."
+    ✅ "Flickering luminescence, fleeting hope: both danced a final waltz before darkness fell."
+    `;
+                default:
+                    return ``;
+            }
+        }
+    }
+    
+    public static async checkUser(username: string, email: string): Promise<void> {
+        const validUsername:boolean = await User.checkUserName(username);
+        const validEmail:boolean = await User.checkEmail(email);
+        const lang: "fr" | "en" = getLanguage()
+        if (validUsername){
+            throw new ConflictError(lang === 'fr' ? "Le nom d'utilisateur est déjà utilisé." : 'Username is already taken.');
+        }
+        if (validEmail){
+            throw new ConflictError(lang === 'fr' ? "L'adresse courriel est déjà utilisée." : 'Email address is already in use.');
+        }
+    }
+    
+    public static async login(email: string, password: string, jwtInstance: FastifyInstance): Promise<string> {
+        const lang: "fr" | "en" = getLanguage()
+        if (await User.validUser(email, password)) {
+            const user: BasicUserCredentials = await UserRepo.fetchUserByCredentials(System.hashElement(email));
+            
+            return jwtInstance.jwt.sign({userId: user.user_id})
+        } else {
+            throw new NotFoundError(lang === 'fr' ? "Nom d'utilisateur ou mot de passe invalide." : "Invalid username or password.");
+        }
+    }
+    
+    public static async setUserAccountInformation(userId: string, authorName: string, username: string): Promise<boolean> {
+        const user:User = new User(userId);
+        await user.getUserInfos();
+        const meta:string = System.encryptDateKey(userId);
+        const userKey:string = await user.getUserKey(meta);
+        return User.updateUserInfos(userKey, userId, user.firstName, user.lastName, username, user.getEmail(), authorName);
+    }
+
+    public static async validUser(email:string,password:string):Promise<boolean>{
+        const validUser: PasswordResponse | null = await UserRepo.verifyUserAuth(System.hashElement(email));
+        if (!validUser) {
+            return false;
+        }
+        const stockedPassword: string = validUser.password;
+        return System.verifyPassword(stockedPassword, password);
+    }
+    
+    public static async socialLogin(firstName: string, lastName: string, email: string | null, socialId: string, provider: string, jwtInstance: JWT): Promise<string> {
+        const validUserId: string | null = await UserRepo.fetchBySocialId(socialId);
+        let userId: string = '';
+        let newEmail: string = '';
+        if (email === null) {
+            newEmail = socialId + '@' + provider + '.com';
+        } else {
+            newEmail = email;
+        }
+        if (!validUserId) {
+            const emailValidationUserId: string | null = await UserRepo.fetchByEmail(System.hashElement(newEmail));
+            if (!emailValidationUserId) {
+                const randomNum: number = Math.floor(Math.random() * 10000);
+                const fourDigitNum: string = randomNum.toString().padStart(4, '0');
+                const username: string = newEmail.split('@')[0] + fourDigitNum;
+                userId = System.createUniqueId();
+                await this.addUser(firstName, lastName, username, newEmail, "", userId, provider, socialId);
+            } else {
+                userId = emailValidationUserId;
+                await UserRepo.updateSocialId(userId, socialId, provider);
+            }
+        } else {
+            userId = validUserId;
+        }
+        
+        return jwtInstance.sign({userId: userId})
+    }
+    
+    public static async confirmAccount(verifyCode: string, email: string): Promise<boolean> {
+        await UserRepo.fetchVerifyCode(System.hashElement(email), verifyCode);
+        const account: UserQueryResponse = await UserRepo.fetchTempAccount(email, verifyCode);
+        const userId: string = account.user_id;
+        const firstName: string = account.first_name;
+        const lastName: string = account.last_name;
+        const username: string = account.username;
+        const emailAddr: string = account.email;
+        const password: string = account.password;
+        const insertUser: string = await this.addUser(firstName, lastName, username, emailAddr, password, userId);
+        const projectDirectory: string = path.join(process.cwd(), 'uploads', userId.toString(), 'cover');
+        
+        if (!insertUser) {
+            throw new Error('Une erreur est survenue lors de la confirmation du compte.');
+        }
+        await fs.promises.mkdir(projectDirectory, {recursive: true})
+            .catch(error => console.error(`Erreur lors de la création du dossier: ${error}`));
+        return true;
+    }
+    
+    public static async sendVerifyCode(username: string, email: string): Promise<void> {
+        const verifyCode: string = System.createVerifyCode();
+        const validUpdate: boolean = await UserRepo.updateVerifyCode(username, username === "" ? System.hashElement(email) : email, verifyCode);
+        if (validUpdate) {
+            const options = {code: verifyCode}
+            System.sendEmailTo(email, 'Votre code de vérification', '', EmailTemplate('verify-code', options));
+        } else {
+            throw new Error('Une erreur est survenue lors de l\'envoi du code de vérification');
+        }
+    }
+    public static validateTOTPCode(code: string, token: string): boolean {
+        try {
+            const totp = new TOTP({
+                secret: Secret.fromBase32(code)
+            });
+
+            const isValid = totp.validate({
+                token,
+                window: 1
+            });
+            return isValid !== null;
+        } catch (error) {
+            return false;
+        }
+    }
+
+    public static async checkTOTPExist(userId:string,email:string):Promise<boolean>{
+        return UserRepo.checkTOTPExist(userId,email);
+    }
+    
+    public static async handleTOTP(userId: string, email: string, verifyCode: string): Promise<boolean> {
+        const user = new User(userId);
+        const meta:string = System.encryptDateKey(userId);
+        const userKey:string = await user.getUserKey(meta);
+        const encryptedCode:string = System.encryptDataWithUserKey(verifyCode,userKey);
+        const encryptedEmail:string = System.hashElement(email);
+        return UserRepo.insertTOTP(encryptedCode,encryptedEmail,userId,meta,true);
+    }
+    
+    public static async activateTOTP(userId: string, email: string, token: string): Promise<boolean> {
+        const data: TOTPQuery = await UserRepo.fetchTempTOTP(userId, System.hashElement(email));
+        const user = new User(userId);
+        const meta: string = data.totp_meta;
+        const userKey: string = await user.getUserKey(meta);
+        const code: string = System.decryptDataWithUserKey(data.totp_code, userKey);
+        if (User.validateTOTPCode(code, token)) {
+            return UserRepo.insertTOTP(data.totp_code, data.email, userId, meta, false);
+        } else {
+            throw new Error('Your token is incorrect');
+        }
+    }
+    
+    public static async validateTOTP(userId: string, email: string, token: string): Promise<boolean> {
+        const data: TOTPQuery = await UserRepo.fetchTOTP(userId, System.hashElement(email));
+        const user = new User(userId);
+        const meta: string = data.totp_meta;
+        const userKey: string = await user.getUserKey(meta);
+        const code: string = System.decryptDataWithUserKey(data.totp_code, userKey);
+        if (User.validateTOTPCode(code, token)) {
+            return true;
+        } else {
+            throw new Error('Your token is incorrect');
+        }
+    }
+    
+    public static async getUserAccountInformation(userId: string): Promise<UserAccount> {
+        const user:User = new User(userId);
+        const data: UserAccountQuery = await UserRepo.fetchAccountInformation(userId);
+        const userKey: string = await user.getUserKey(data.user_meta);
+        const userName: string = data.first_name ? System.decryptDataWithUserKey(data.first_name, userKey) : '';
+        const lastName: string = data.last_name ? System.decryptDataWithUserKey(data.last_name, userKey) : '';
+        const username: string = data.username ? System.decryptDataWithUserKey(data.username, userKey) : '';
+        const authorName: string = data.author_name ? System.decryptDataWithUserKey(data.author_name, userKey) : '';
+        const email: string = data.email ? System.decryptDataWithUserKey(data.email, userKey) : '';
+        return {
+            firstName: userName,
+            lastName: lastName,
+            username: username,
+            authorName: authorName,
+            email: email
+        };
+    }
+    
+    public static async getSubscription(userId: string): Promise<UserSubscriptionProps[]> {
+        const result: UserSubscription[] = await UserRepo.fetchSubscription(userId);
+        const userSubscription: UserSubscriptionProps[] = [];
+        for (const sub of result) {
+            userSubscription.push({
+                userId: sub.user_id,
+                subType: sub.sub_type,
+                subTier: sub.sub_tier,
+                startDate: sub.start_date,
+                endDate: sub.end_date,
+                status: sub.status
+            })
+        }
+        return userSubscription;
+    }
+
+    public async convertTimeToPoint(time:number):Promise<void>{
+        const points:number = Math.ceil(time/30);
+        await UserRepo.updatePoints(points,this.id);
+    }
+    
+    static async setUserPreferences(userId: string, writingLang: number, writingLevel: number): Promise<boolean | string> {
+        if (writingLang === 0 || writingLevel === 0) {
+            throw new Error('Veuillez choisir une langue et un niveau de rédaction valides.');
+        }
+        if (await UserRepo.isUserPreferencesExist(userId)) {
+            return UserRepo.updateUserPreference(userId, writingLang, writingLevel)
+        } else {
+            const preferenceId: string = System.createUniqueId();
+            return await UserRepo.insertUserPreference(preferenceId, userId, writingLang, writingLevel);
+        }
+    }
+    
+    static async acceptTerms(userId: string, version: string): Promise<boolean> {
+        const log: boolean = await UserRepo.logAcceptTerms(userId, version);
+        if (log) {
+            return await UserRepo.updateTermsAccepted(userId);
+        } else {
+            return false;
+        }
+    }
+    
+    public getId(): string {
+        return this.id;
+    }
+    
+    public getFirstName(): string {
+        return this.firstName;
+    }
+    
+    public getLastName(): string {
+        return this.lastName;
+    }
+    
+    public getUsername(): string {
+        return this.username;
+    }
+    
+    public getEmail(): string {
+        return this.email;
+    }
+    
+    public isAccountVerified(): boolean {
+        return this.accountVerified;
+    }
+    
+    public getWritingLang(): number {
+        return this.writingLang;
+    }
+    
+    public getWritingLevel(): number {
+        return this.writingLevel;
+    }
+    
+    public getRitePoints(): number {
+        return this.ritePoints;
+    }
+    
+    public isTermsAccepted(): boolean {
+        return this.termsAccepted;
+    }
+    
+    public getGroupId(): number {
+        return this.groupId;
+    }
+    
+    public getBalancedCredits(): number {
+        return this.balancedCredits;
+    }
+    
+    public getAuthorName(): string {
+        return this.authorName;
+    }
+    
+    static async updateAIUserKey(userId: string, anthropicKey: string | null, openaiKey: string | null, geminiKey: string | null): Promise<boolean> {
+        const user = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta);
+        const groupedKey: { brand: 'anthropic' | 'openai' | 'gemini', key: string }[] = [];
+        const anthropicKeyEncrypted: string = anthropicKey ? System.encryptDataWithUserKey(anthropicKey, userKey) : '';
+        groupedKey.push({brand: 'anthropic', key: anthropicKeyEncrypted});
+        const openaiKeyEncrypted: string = openaiKey ? System.encryptDataWithUserKey(openaiKey, userKey) : '';
+        groupedKey.push({brand: 'openai', key: openaiKeyEncrypted});
+        const geminiKeyEncrypted: string = geminiKey ? System.encryptDataWithUserKey(geminiKey, userKey) : '';
+        groupedKey.push({brand: 'gemini', key: geminiKeyEncrypted});
+        for (const key of groupedKey) {
+            const updateAI: boolean = await UserRepo.updateAIUserKey(userId, key.brand, key.key);
+            if (!updateAI) {
+                return false;
+            }
+        }
+        return true;
+    }
+    
+    static async getAPIKey(userId: string): Promise<UserAPIKey[]> {
+        const user: User = new User(userId);
+        const meta: string = System.encryptDateKey(userId);
+        const userKey: string = await user.getUserKey(meta);
+        const apiKeys: UserAPIKeyResult[] = await UserRepo.fetchAPIKey(userId);
+        const decryptKeys: UserAPIKey[] = [];
+        for (const apiKey of apiKeys) {
+            if (apiKey.key && apiKey.key.length > 0) {
+                decryptKeys.push({
+                    brand: apiKey.brand,
+                    key: System.decryptDataWithUserKey(apiKey.key, userKey)
+                })
+            }
+        }
+        return decryptKeys;
+    }
+    
+    private static async moneySpentThisMonth(userId: string): Promise<number> {
+        const {last, first} = System.getMonthBounds();
+        const usage: UserAiUsageResult = await UserRepo.fetchUserAiUsage(userId, first, last);
+        return usage.total_price;
+    }
+}
diff --git a/electron/database/repositories/book.repository.ts b/electron/database/repositories/book.repository.ts
index 2c37a5d..c262efd 100644
--- a/electron/database/repositories/book.repository.ts
+++ b/electron/database/repositories/book.repository.ts
@@ -291,11 +291,11 @@ export default class BookRepo {
         }
     }
     
-    static updateBookBasicInformation(userId: string, title: string, hashedTitle: string, subTitle: string, hashedSubTitle: string, summary: string, publicationDate: string, wordCount: number, bookId: string, bookMeta: string, lang: 'fr' | 'en'): boolean {
+    static updateBookBasicInformation(userId: string, title: string, hashedTitle: string, subTitle: string, hashedSubTitle: string, summary: string, publicationDate: string, wordCount: number, bookId: string, lang: 'fr' | 'en'): boolean {
         try {
             const db: Database = System.getDb();
-            const result: RunResult = db.run('UPDATE erit_books SET title=?, hashed_title=?, sub_title=?, hashed_sub_title=?, summary=?, serie_id=?, desired_release_date=?, desired_word_count=?, book_meta=? WHERE author_id=? AND book_id=?',
-                [title, hashedTitle, subTitle, hashedSubTitle, summary, 0, publicationDate ? System.dateToMySqlDate(publicationDate) : null, wordCount, bookMeta, userId, bookId]);
+            const result: RunResult = db.run('UPDATE erit_books SET title=?, hashed_title=?, sub_title=?, hashed_sub_title=?, summary=?, serie_id=?, desired_release_date=?, desired_word_count=? WHERE author_id=? AND book_id=?',
+                [title, hashedTitle, subTitle, hashedSubTitle, summary, 0, publicationDate ? System.dateToMySqlDate(publicationDate) : null, wordCount, userId, bookId]);
             return result.changes > 0;
         } catch (e: unknown) {
             if (e instanceof Error) {
@@ -381,14 +381,14 @@ export default class BookRepo {
         }
     }
     
-    static insertNewPlotPoint(plotPointId: string, userId: string, bookId: string, encryptedName: string, hashedName: string, incidentId: string, metaPlot: string, lang: 'fr' | 'en'): string {
+    static insertNewPlotPoint(plotPointId: string, userId: string, bookId: string, encryptedName: string, hashedName: string, incidentId: string, lang: 'fr' | 'en'): string {
         try {
             const db: Database = System.getDb();
             const existingResult = db.get('SELECT plot_point_id FROM book_plot_points WHERE author_id=? AND book_id=? AND hashed_title=?', [userId, bookId, hashedName]);
             if (existingResult !== null) {
                 throw new Error(lang === 'fr' ? `Ce point de l'intrigue existe déjà.` : `This plot point already exists.`);
             }
-            const insertResult: RunResult = db.run('INSERT INTO book_plot_points (plot_point_id,title,hashed_title,author_id,book_id,linked_incident_id,meta_plot) VALUES (?,?,?,?,?,?,?)', [plotPointId, encryptedName, hashedName, userId, bookId, incidentId, metaPlot]);
+            const insertResult: RunResult = db.run('INSERT INTO book_plot_points (plot_point_id,title,hashed_title,author_id,book_id,linked_incident_id) VALUES (?,?,?,?,?,?)', [plotPointId, encryptedName, hashedName, userId, bookId, incidentId]);
             if (insertResult.changes > 0) {
                 return plotPointId;
             } else {
diff --git a/electron/database/repositories/chapter.repository.ts b/electron/database/repositories/chapter.repository.ts
index 268078c..3799c76 100644
--- a/electron/database/repositories/chapter.repository.ts
+++ b/electron/database/repositories/chapter.repository.ts
@@ -84,11 +84,11 @@ export default class ChapterRepo{
         }
     }
     
-    public static insertChapter(chapterId: string, userId: string, bookId: string, title: string, hashedTitle: string, wordsCount: number, chapterOrder: number, meta: string, lang: 'fr' | 'en' = 'fr'): string {
+    public static insertChapter(chapterId: string, userId: string, bookId: string, title: string, hashedTitle: string, wordsCount: number, chapterOrder: number, lang: 'fr' | 'en' = 'fr'): string {
         let result: RunResult;
         try {
             const db: Database = System.getDb();
-            result = db.run('INSERT INTO book_chapters (chapter_id,author_id, book_id, title, hashed_title, words_count, chapter_order, meta_chapter) VALUES (?,?,?,?,?,?,?,?)', [chapterId, userId, bookId, title, hashedTitle, wordsCount, chapterOrder, meta]);
+            result = db.run('INSERT INTO book_chapters (chapter_id,author_id, book_id, title, hashed_title, words_count, chapter_order) VALUES (?,?,?,?,?,?,?)', [chapterId, userId, bookId, title, hashedTitle, wordsCount, chapterOrder]);
         } catch (e: unknown) {
             if (e instanceof Error) {
                 console.error(`DB Error: ${e.message}`);
@@ -224,10 +224,10 @@ export default class ChapterRepo{
         }
     }
     
-    public static updateChapter(userId: string, chapterId: string, encryptedTitle: string, hashTitle: string, chapterOrder: number, meta: string, lang: 'fr' | 'en' = 'fr'): boolean {
+    public static updateChapter(userId: string, chapterId: string, encryptedTitle: string, hashTitle: string, chapterOrder: number, lang: 'fr' | 'en' = 'fr'): boolean {
         try {
             const db: Database = System.getDb();
-            const result: RunResult = db.run('UPDATE book_chapters SET title=?, hashed_title=?, chapter_order=?, meta_chapter=? WHERE author_id=? AND chapter_id=?', [encryptedTitle, hashTitle, chapterOrder, meta, userId, chapterId]);
+            const result: RunResult = db.run('UPDATE book_chapters SET title=?, hashed_title=?, chapter_order=?, meta_chapter=? WHERE author_id=? AND chapter_id=?', [encryptedTitle, hashTitle, chapterOrder, userId, chapterId]);
             return result.changes > 0;
         } catch (e: unknown) {
             if (e instanceof Error) {