import {ChapterContext} from "@/context/ChapterContext";
import {EditorContext} from "@/context/EditorContext";
import {useContext, useEffect, useState} from "react";
import {Editor} from "@tiptap/react";
import {FontAwesomeIcon} from "@fortawesome/react-fontawesome";
import {faBook, faChartSimple, faHeart, faSheetPlastic} from "@fortawesome/free-solid-svg-icons";
import {SessionContext} from "@/context/SessionContext";
import {useTranslations} from "next-intl";
import {AlertContext} from "@/context/AlertContext";
import {BookContext} from "@/context/BookContext";

export default function ScribeFooterBar() {
    const t = useTranslations();
    const {chapter} = useContext(ChapterContext);
    const {book} = useContext(BookContext);
    const editor: Editor | null = useContext(EditorContext).editor;
    const {session} = useContext(SessionContext);
    const {errorMessage} = useContext(AlertContext)
    
    const [wordsCount, setWordsCount] = useState<number>(0);
    
    useEffect((): void => {
        getWordCount();
    }, [editor?.state.doc.textContent]);
    
    function getWordCount(): void {
        if (editor) {
            try {
                const content: string = editor?.state.doc.textContent;
                const texteNormalise: string = content
                    .replace(/'/g, ' ')
                    .replace(/-/g, ' ')
                    .replace(/\s+/g, ' ')
                    .trim();
                const mots: string[] = texteNormalise.split(' ');
                const wordCount: number = mots.filter(
                    (mot: string): boolean => mot.length > 0,
                ).length;
                setWordsCount(wordCount);
            } catch (e: unknown) {
                if (e instanceof Error) {
                    errorMessage(t('errors.wordCountError') + ` (${e.message})`);
                } else {
                    errorMessage(t('errors.wordCountError'));
                }
            }
        }
    }
    
    return (
        <div
            className="px-6 py-3 bg-tertiary/90 backdrop-blur-sm border-t border-secondary/50 text-text-primary flex justify-between items-center shadow-lg">
            <div>
                <span className="flex items-center gap-2">
                    {chapter && (
                        <span className="inline-flex items-center px-3 py-1 rounded-lg bg-primary/10 border border-primary/30">
                            <span className="text-primary font-bold text-sm">
                                {chapter.chapterOrder < 0 ? t('scribeFooterBar.sheet') : `${chapter.chapterOrder}.`}
                            </span>
                        </span>
                    )}
                    <span className={'flex items-center gap-2 font-medium'}>
                        {
                            chapter?.title || book?.title || (
                            <>
                                <span>{t('scribeFooterBar.madeWith')}</span>
                                <FontAwesomeIcon color={'red'} icon={faHeart} className={'w-4 h-4 animate-pulse'}/>
                            </>
                        )}
                    </span>
                </span>
            </div>
            {
                chapter || book ? (
                    <div className="flex items-center space-x-3">
                        <div
                            className="flex items-center gap-2 bg-secondary/50 px-4 py-2 rounded-xl border border-secondary shadow-sm">
                            <FontAwesomeIcon icon={faChartSimple} className="text-primary text-sm w-4 h-4"/>
                            <span className="text-muted text-sm font-medium">{t('scribeFooterBar.words')}:</span>
                            <span className="text-text-primary font-bold">{wordsCount}</span>
                        </div>
                        <div
                            className="flex items-center gap-2 bg-secondary/50 px-4 py-2 rounded-xl border border-secondary shadow-sm">
                            <FontAwesomeIcon icon={faSheetPlastic} className={'text-primary w-4 h-4'}/>
                            <span className="text-text-primary font-bold">{Math.ceil(wordsCount / 300)}</span>
                        </div>
                    </div>
                ) : (
                    <div className="flex items-center space-x-3">
                        <div
                            className="flex items-center gap-2 bg-secondary/50 px-4 py-2 rounded-xl border border-secondary shadow-sm">
                            <FontAwesomeIcon icon={faBook} className={'text-primary w-4 h-4'}/>
                            <span className="text-muted text-sm font-medium mr-1">{t('scribeFooterBar.books')}:</span>
                            <span className="text-text-primary font-bold">{session.user?.books?.length}</span>
                        </div>
                    </div>
                )
            }
        </div>
    )
}