import React, {useState} from 'react';
import {FontAwesomeIcon} from '@fortawesome/react-fontawesome';
import {faChevronDown, faChevronUp, faPlus, faTrash} from '@fortawesome/free-solid-svg-icons';
import {Incident, PlotPoint} from '@/lib/models/Book';
import {ActChapter, ChapterListProps} from '@/lib/models/Chapter';
import {SelectBoxProps} from '@/shared/interface';
import ActChapterItem from './ActChapter';
import InputField from '@/components/form/InputField';
import SelectBox from '@/components/form/SelectBox';
import {useTranslations} from 'next-intl';

interface ActPlotPointsProps {
    plotPoints: PlotPoint[];
    incidents: Incident[];
    actId: number;
    mainChapters: ChapterListProps[];
    newPlotPointTitle: string;
    setNewPlotPointTitle: (title: string) => void;
    selectedIncidentId: string;
    setSelectedIncidentId: (id: string) => void;
    onAddPlotPoint: (actId: number) => Promise<void>;
    onDeletePlotPoint: (actId: number, plotPointId: string) => Promise<void>;
    onLinkChapter: (actId: number, chapterId: string, plotPointId: string) => Promise<void>;
    onUpdateChapterSummary: (chapterId: string, summary: string, plotPointId: string) => void;
    onUnlinkChapter: (chapterInfoId: string, chapterId: string, plotPointId: string) => Promise<void>;
    sectionKey: string;
    isExpanded: boolean;
    onToggleSection: (sectionKey: string) => void;
}

export default function ActPlotPoints({
                                          plotPoints,
                                          incidents,
                                          actId,
                                          mainChapters,
                                          newPlotPointTitle,
                                          setNewPlotPointTitle,
                                          selectedIncidentId,
                                          setSelectedIncidentId,
                                          onAddPlotPoint,
                                          onDeletePlotPoint,
                                          onLinkChapter,
                                          onUpdateChapterSummary,
                                          onUnlinkChapter,
                                          sectionKey,
                                          isExpanded,
                                          onToggleSection,
                                      }: ActPlotPointsProps) {
    const t = useTranslations('actComponent');
    const [expandedItems, setExpandedItems] = useState<{ [key: string]: boolean }>({});
    const [selectedChapterId, setSelectedChapterId] = useState<string>('');
    
    function toggleItem(itemKey: string): void {
        setExpandedItems(prev => ({
            ...prev,
            [itemKey]: !prev[itemKey],
        }));
    }
    
    function getIncidentData(): SelectBoxProps[] {
        return incidents.map((incident: Incident): SelectBoxProps => ({
            value: incident.incidentId,
            label: incident.title,
        }));
    }
    
    return (
        <div className="mb-4">
            <button
                className="flex justify-between items-center w-full bg-secondary/50 p-3 rounded-xl text-left hover:bg-secondary transition-all duration-200 shadow-sm"
                onClick={(): void => onToggleSection(sectionKey)}
            >
                <span className="font-bold text-text-primary">{t('plotPointsTitle')}</span>
                <FontAwesomeIcon
                    icon={isExpanded ? faChevronUp : faChevronDown}
                    className="text-text-primary w-3.5 h-3.5"
                />
            </button>
            
            {isExpanded && (
                <div className="p-2">
                    {plotPoints && plotPoints.length > 0 ? (
                        plotPoints.map((item: PlotPoint) => {
                            const itemKey = `plotpoint_${item.plotPointId}`;
                            const isItemExpanded: boolean = expandedItems[itemKey];
                            const linkedIncident: Incident | undefined = incidents.find(
                                (inc: Incident): boolean => inc.incidentId === item.linkedIncidentId
                            );
                            
                            return (
                                <div
                                    key={`plot-point-${item.plotPointId}`}
                                    className="bg-secondary/30 rounded-xl mb-3 overflow-hidden border border-secondary/40 shadow-sm hover:shadow-md transition-all duration-200"
                                >
                                    <button
                                        className="flex justify-between items-center w-full p-2 text-left"
                                        onClick={(): void => toggleItem(itemKey)}
                                    >
                                        <div>
                                            <p className="font-bold text-text-primary">{item.title}</p>
                                            {linkedIncident && (
                                                <p className="text-text-secondary text-sm italic">
                                                    {t('linkedTo')}: {linkedIncident.title}
                                                </p>
                                            )}
                                        </div>
                                        <div className="flex items-center">
                                            <FontAwesomeIcon
                                                icon={isItemExpanded ? faChevronUp : faChevronDown}
                                                className="text-text-primary w-3.5 h-3.5 mr-2"
                                            />
                                            <button
                                                onClick={async (e): Promise<void> => {
                                                    e.stopPropagation();
                                                    await onDeletePlotPoint(actId, item.plotPointId);
                                                }}
                                                className="text-error hover:bg-error/20 p-1.5 rounded-lg transition-all duration-200 hover:scale-110"
                                            >
                                                <FontAwesomeIcon icon={faTrash} className="w-3.5 h-3.5"/>
                                            </button>
                                        </div>
                                    </button>
                                    
                                    {isItemExpanded && (
                                        <div className="p-3 bg-secondary/20">
                                            {item.chapters && item.chapters.length > 0 ? (
                                                item.chapters.map((chapter: ActChapter) => (
                                                    <ActChapterItem
                                                        key={`plot-chapter-${chapter.chapterId}-${chapter.chapterInfoId}`}
                                                        chapter={chapter}
                                                        onUpdateSummary={(chapterId, summary) =>
                                                            onUpdateChapterSummary(chapterId, summary, item.plotPointId)
                                                        }
                                                        onUnlink={(chapterInfoId, chapterId) =>
                                                            onUnlinkChapter(chapterInfoId, chapterId, item.plotPointId)
                                                        }
                                                    />
                                                ))
                                            ) : (
                                                <p className="text-text-secondary text-center text-sm p-2">
                                                    {t('noLinkedChapter')}
                                                </p>
                                            )}
                                            
                                            <div className="flex items-center mt-2">
                                                <select
                                                    onChange={(e) => setSelectedChapterId(e.target.value)}
                                                    className="flex-1 bg-secondary/50 text-text-primary rounded-xl px-4 py-2.5 mr-2 border border-secondary/50 focus:outline-none focus:ring-4 focus:ring-primary/20 focus:border-primary hover:bg-secondary hover:border-secondary transition-all duration-200"
                                                >
                                                    <option value="">{t('selectChapterPlaceholder')}</option>
                                                    {mainChapters.map((chapter: ChapterListProps) => (
                                                        <option key={chapter.chapterId} value={chapter.chapterId}>
                                                            {`${chapter.chapterOrder}. ${chapter.title}`}
                                                        </option>
                                                    ))}
                                                </select>
                                                <button
                                                    className="bg-primary text-text-primary w-9 h-9 rounded-full flex items-center justify-center disabled:opacity-50 disabled:cursor-not-allowed shadow-md hover:shadow-lg hover:scale-110 hover:bg-primary-dark transition-all duration-200"
                                                    onClick={() => onLinkChapter(actId, selectedChapterId, item.plotPointId)}
                                                    disabled={!selectedChapterId}
                                                >
                                                    <FontAwesomeIcon icon={faPlus} className="w-3.5 h-3.5"/>
                                                </button>
                                            </div>
                                        </div>
                                    )}
                                </div>
                            );
                        })
                    ) : (
                        <p className="text-text-secondary text-center text-sm p-2">
                            {t('noPlotPointAdded')}
                        </p>
                    )}
                    
                    <div className="mt-2 space-y-2">
                        <div className="flex items-center">
                            <input
                                type="text"
                                className="flex-1 bg-secondary/50 text-text-primary rounded-xl px-4 py-2.5 border border-secondary/50 focus:outline-none focus:ring-4 focus:ring-primary/20 focus:border-primary hover:bg-secondary hover:border-secondary transition-all duration-200 placeholder:text-muted/60"
                                value={newPlotPointTitle}
                                onChange={(e) => setNewPlotPointTitle(e.target.value)}
                                placeholder={t('newPlotPointPlaceholder')}
                            />
                        </div>
                        <InputField
                            input={
                                <SelectBox
                                    defaultValue={``}
                                    onChangeCallBack={(e) => setSelectedIncidentId(e.target.value)}
                                    data={getIncidentData()}
                                />
                            }
                            addButtonCallBack={(): Promise<void> => onAddPlotPoint(actId)}
                            isAddButtonDisabled={newPlotPointTitle.trim() === ''}
                        />
                    </div>
                </div>
            )}
        </div>
    );
}