# All files / src/app/user page.tsx

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     'use client';
    /* eslint-disable @typescript-eslint/no-unused-vars */
    import React, { useEffect, useMemo, useState } from 'react';
    import { useTranslation } from 'react-i18next';
    import { useQuery } from '@tanstack/react-query';
    import {
      Play,
      Sparkles,
      Activity,
      Search,
      Tv
    } from 'lucide-react';

    import { Button } from '@/components/ui/button';
    import { Badge } from '@/components/ui/badge';
    import { UserRoute } from '@/components/auth/ProtectedRoute';
    import { useAuth } from '@/contexts/AuthContext';
    import { useBannedRedirect } from '@/hooks/useBannedRedirect';
    import { apiErrorMessage } from '@/lib/utils';
    import { contentService, userProfileService } from '@/services';
    import HeroSlider from '@/components/user/HeroSlider';
    import { ContentRail } from '@/components/user/ContentRail';
    import { CATEGORY_ICONS } from '@/constants/categoryIcons';
    import { ROUTES } from '@/constants/app';
    import Link from 'next/link';

    import type {
      Content,
      Series,
      DiscoveryMediaItem,
      DiscoveryRail,
      LanguageOption
    } from '@/types';

    const defaultLanguageOptions: LanguageOption[] = [
      { code: 'en', label: 'English', native_label: 'English' },
    ];

    function languageLabel(option: LanguageOption): string {
      if (option.native_label && option.native_label !== option.label) {
        return `${option.label} · ${option.native_label}`;
      }
      return option.label;
    }

    // Helper to map Content[] to DiscoveryMediaItem[]
    const mapListToItems = (list: any[], mediaType: string): DiscoveryMediaItem[] =>
      (list || []).map((c, index) => {
        const poster = c.poster_url || c.image_url || '';
        const backdrop = c.backdrop_url || c.image_url || poster || '';
        const title = c.title || '';
        const description = c.description || undefined;
        const year = c.year;
        const contentId = c.id;

        return {
          id: `${mediaType}-${c.id}-${index}`,
          title,
          description,
          image: poster || undefined,
          backdrop: backdrop || undefined,
          media_type: mediaType,
          content_id: contentId,
          year,
          badges: [],
          // For series progress or specific logic
          progress: c.progress_percent
        } as DiscoveryMediaItem;
      });

    const toTimestamp = (value: unknown): number => {
      if (!value || typeof value !== 'string') return 0;
      const ts = Date.parse(value);
      return Number.isNaN(ts) ? 0 : ts;
    };

    const sortByLatestAdded = <T extends Record<string, any>>(items: T[]): T[] => {
      return [...(items || [])].sort((a, b) => {
        const aTs = toTimestamp(a.created_at ?? a.createdAt ?? a.content?.created_at ?? a.content?.createdAt);
        const bTs = toTimestamp(b.created_at ?? b.createdAt ?? b.content?.created_at ?? b.content?.createdAt);
        return bTs - aTs;
      });
    };

    export default function UserDashboard() {
      const { t, i18n } = useTranslation();
      const { user } = useAuth();
      const [heroBg, setHeroBg] = useState<string>('');
      const [selectedLanguage, setSelectedLanguage] = useState<string>(i18n.language || 'en');

      useBannedRedirect();

      useEffect(() => {
        setSelectedLanguage(i18n.language || 'en');
      }, [i18n.language]);

      const handleLanguageChange = async (languageCode: string) => {
        setSelectedLanguage(languageCode);
        try {
          await i18n.changeLanguage(languageCode);
          localStorage.setItem('iptv_language', languageCode);
        } catch (error) {
          console.error('Failed to change language', error);
        }
      };

      // --- DATA FETCHING ---

      // 1. Continue Watching
      const { data: continueWatchingItems = [], isLoading: isLoadingHistory } = useQuery({
        queryKey: ['user-dashboard', 'continue-watching'],
        staleTime: 10 * 1000,
        refetchOnWindowFocus: true,
        queryFn: async () => {
          const result = await contentService.getContinueWatching();
          if (!result.success || !result.data) return [];

          // Filter out Live TV and Events
          const excludedTypes = ['tv', 'live', 'livetv', 'live_tv', 'event', 'events'];
          const items = result.data.items
            .filter((item) => {
              const contentType = (item.content_type || '').toLowerCase();
              return !excludedTypes.includes(contentType);
            })
            .slice(0, 16);

          return items.map((item, index): DiscoveryMediaItem => ({
            id: `continue-${item.content_id}-${item.episode_id ?? 0}-${index}`,
            title: item.title || t('createContent.untitled'),
            image: item.poster_url || item.backdrop_url || undefined,
            backdrop: item.backdrop_url || item.poster_url || undefined,
            media_type: item.content_type,
            content_id: item.content_id,
            episode_id: item.episode_id ?? undefined,
            progress: item.progress_percent ? item.progress_percent / 100 : 0,
            badges: ['continue'],
            subtitle: item.series_title ? item.series_title : undefined
          }));
        }
      });

      // 2. Movies
      const { data: moviesContent = [], isLoading: isLoadingMovies } = useQuery({
        queryKey: ['user-dashboard', 'movies', 'public'],
        staleTime: 5 * 60 * 1000,
        queryFn: async () => {
          const result = await contentService.getMovies({ page: 1, limit: 30 });
          if (!result.success || !result.data) return [];
          return result.data;
        }
      });
      const moviesItems = useMemo(() => mapListToItems(sortByLatestAdded(moviesContent), 'movie'), [moviesContent]);

      // 3. Series
      const { data: seriesPage = { series: [] as Series[] }, isLoading: isLoadingSeries } = useQuery({
        queryKey: ['user-dashboard', 'series', 'public'],
        staleTime: 5 * 60 * 1000,
        queryFn: async () => {
          const res = await contentService.getSeries(1, 24);
          if (!res.success || !res.data) return { series: [] };
          return res.data;
        }
      });
      // Series data has nested content structure - extract content properties
      const seriesItems = useMemo(() => {
        const flattenedSeries = sortByLatestAdded(seriesPage.series).map((s: any) => ({
          id: s.content?.id || s.id,
          title: s.content?.title || s.title,
          description: s.content?.description || s.description,
          poster_url: s.content?.image_url || s.content?.poster_url || s.poster_url,
          image_url: s.content?.image_url || s.image_url,
          backdrop_url: s.content?.backdrop_url || s.backdrop_url,
          year: s.content?.year || s.year,
          progress_percent: s.progress_percent,
          created_at: s.content?.created_at || s.created_at
        }));
        return mapListToItems(flattenedSeries, 'series');
      }, [seriesPage.series]);

      // 4. Kids (if enabled/subscribed - simplified logic for now)
      const { data: kidsContent = [], isLoading: isLoadingKids } = useQuery({
        queryKey: ['user-dashboard', 'kids'],
        staleTime: 5 * 60 * 1000,
        queryFn: async () => {
          const res = await contentService.getKidsContent({ page: 1, limit: 24 });
          if (!res.success || !res.data) return [];
          return res.data;
        }
      });
      const kidsItems = useMemo(() => mapListToItems(sortByLatestAdded(kidsContent), 'kids'), [kidsContent]);

      // 5. Anime
      const { data: animeContent = [], isLoading: isLoadingAnime } = useQuery({
        queryKey: ['user-dashboard', 'anime'],
        staleTime: 5 * 60 * 1000,
        queryFn: async () => {
          const res = await contentService.getAnimeContent({ page: 1, limit: 24 });
          if (!res.success || !res.data) return [];
          return res.data;
        }
      });
      const animeItems = useMemo(() => mapListToItems(animeContent, 'anime'), [animeContent]);

      // 6. Live TV (Simplified Fetch for "On Air" rail)
      // In a real app, we'd fetch "trending" or "most watched" channels.
      // Here we just fetch categories -> channels to populate a rail.
      const { data: liveChannels = [] } = useQuery({
        queryKey: ['user-dashboard', 'live-channels'],
        staleTime: 2 * 60 * 1000,
        queryFn: async () => {
          // Mock: Fetching a few channels from first category or similar
          // For now, let's skip or mock. Real implementation needs a proper endpoint.
          return [];
        }
      });

      // --- GENRE EXTRACTION ---
      // Build dynamic genre list from fetched movies/series content
      const genreColorMap: Record<string, string> = {
        'action': 'from-red-900/80 to-red-600/20',
        'adventure': 'from-amber-900/80 to-amber-600/20',
        'comedy': 'from-yellow-900/80 to-yellow-600/20',
        'drama': 'from-blue-900/80 to-blue-600/20',
        'sci-fi': 'from-purple-900/80 to-purple-600/20',
        'science fiction': 'from-purple-900/80 to-purple-600/20',
        'horror': 'from-slate-900/80 to-slate-600/20',
        'thriller': 'from-rose-900/80 to-rose-600/20',
        'romance': 'from-pink-900/80 to-pink-600/20',
        'documentary': 'from-emerald-900/80 to-emerald-600/20',
        'animation': 'from-cyan-900/80 to-cyan-600/20',
        'fantasy': 'from-violet-900/80 to-violet-600/20',
        'mystery': 'from-indigo-900/80 to-indigo-600/20',
        'crime': 'from-zinc-900/80 to-zinc-600/20',
        'family': 'from-teal-900/80 to-teal-600/20',
        'war': 'from-stone-900/80 to-stone-600/20',
        'music': 'from-fuchsia-900/80 to-fuchsia-600/20',
        'history': 'from-orange-900/80 to-orange-600/20',
        'western': 'from-amber-950/80 to-amber-700/20',
      };
      const defaultGenreColor = 'from-slate-900/80 to-slate-600/20';

      const dynamicGenres = useMemo(() => {
        const genreSet = new Map<string, number>();
        // Extract genres from movies
        for (const movie of moviesContent) {
          const genre = (movie as any).genre;
          if (genre && typeof genre === 'string') {
            for (const g of genre.split(',')) {
              const normalized = g.trim();
              if (normalized) {
                genreSet.set(normalized, (genreSet.get(normalized) || 0) + 1);
              }
            }
          }
        }
        // Extract from series
        for (const s of seriesPage.series) {
          const genre = (s as any).genre || (s as any).content?.genre;
          if (genre && typeof genre === 'string') {
            for (const g of genre.split(',')) {
              const normalized = g.trim();
              if (normalized) {
                genreSet.set(normalized, (genreSet.get(normalized) || 0) + 1);
              }
            }
          }
        }

        // Sort by frequency and take top 12
        return Array.from(genreSet.entries())
          .sort((a, b) => b[1] - a[1])
          .slice(0, 12)
          .map(([label]) => ({
            label,
            color: genreColorMap[label.toLowerCase()] || defaultGenreColor,
          }));
      }, [moviesContent, seriesPage.series]);

      // Check if there's any content at all
      const hasContent = moviesItems.length > 0 || seriesItems.length > 0 || kidsItems.length > 0 || animeItems.length > 0 || continueWatchingItems.length > 0;

      // --- HERO SELECTION ---
      // Prefer Continue Watching items if available, otherwise mix Movies
      const heroItems = useMemo(() => {
        if (continueWatchingItems.length > 0) {
          return [...continueWatchingItems.slice(0, 3), ...moviesItems.slice(0, 5)];
        }
        return moviesItems.slice(0, 8);
      }, [continueWatchingItems, moviesItems]);

      return (
        <UserRoute>
          <div className="min-h-screen pb-20">

            {/* Status / Language Bar (Absolute Top Right) */}
            <div className="absolute right-6 sm:right-10 top-6 z-30 flex items-center gap-3">
              {/* Language Picker - Simple Dropdown */}
              <div className="relative group">
                <button className="flex items-center gap-2 px-3 py-1.5 rounded-full bg-black/40 backdrop-blur-md border border-white/10 text-xs font-medium text-white hover:bg-white/10 transition-colors">
                  <span className="uppercase">{selectedLanguage}</span>
                </button>
                <div className="absolute right-0 mt-2 w-32 bg-black/90 backdrop-blur-xl border border-white/10 rounded-lg shadow-xl opacity-0 invisible group-hover:opacity-100 group-hover:visible transition-all duration-200 flex flex-col p-1">
                  {defaultLanguageOptions.map(opt => (
                    <button
                      key={opt.code}
                      onClick={() => handleLanguageChange(opt.code)}
                      className={`text-left px-3 py-2 text-xs rounded-md hover:bg-white/10 ${selectedLanguage === opt.code ? 'text-blue-400 font-bold' : 'text-slate-300'}`}
                    >
                      {opt.label}
                    </button>
                  ))}
                </div>
              </div>

              <Badge variant="outline" className="border-emerald-500/30 bg-emerald-500/10 text-[10px] text-emerald-400 px-2 py-0.5 backdrop-blur-md">
                <Activity className="mr-1 h-3 w-3" />
                {t('common.active')}
              </Badge>
            </div>

            {/* Hero Section */}
            {hasContent && <HeroSlider items={heroItems} onActiveVisualChange={setHeroBg} />}

            {/* Content Rails Section - Overlapping Hero slightly for blending */}
            <div className={`relative z-20 space-y-8 sm:space-y-12 pb-12 ${hasContent ? '-mt-24 bg-gradient-to-b from-transparent via-[#050505] to-[#050505]' : 'pt-24'}`}>

              {/* Empty state when no content is available */}
              {!hasContent && !isLoadingMovies && !isLoadingSeries && (
                <section className="px-6 sm:px-10 py-16 text-center">
                  <div className="max-w-md mx-auto space-y-4">
                    <Tv className="h-16 w-16 text-slate-600 mx-auto" />
                    <h2 className="text-2xl font-bold text-white">{t('user.dashboard.noContent')}</h2>
                    <p className="text-slate-400">{t('user.dashboard.noContentDescription')}</p>
                  </div>
                </section>
              )}

              {/* 1. Continue Watching (Priority) */}
              <ContentRail
                title={t('user.dashboard.continueWatching')}
                subtitle={t('user.dashboard.progressSync')}
                items={continueWatchingItems}
                isLoading={isLoadingHistory}
                aspectRatio="video" // Cinematic look for history
                icon={<Play className="h-5 w-5 text-blue-500" />}
              />

              {/* 2. Movies */}
              <ContentRail
                title={t('user.menu.movies')}
                subtitle={t('user.dashboard.popularMovies')}
                items={moviesItems}
                isLoading={isLoadingMovies}
                viewAllHref={ROUTES.USER.MOVIES}
                icon={<CATEGORY_ICONS.Movies className="h-5 w-5 text-purple-500" />}
              />

              {/* 3. Series */}
              <ContentRail
                title={t('user.menu.series')}
                subtitle={t('user.dashboard.bingeWorthy')}
                items={seriesItems}
                isLoading={isLoadingSeries}
                viewAllHref={ROUTES.USER.SHOWS}
                icon={<CATEGORY_ICONS.Series className="h-5 w-5 text-orange-500" />}
              />

              {/* 4. Kids (Conditional) */}
              {kidsItems.length > 0 && (
                <ContentRail
                  title={t('user.menu.kids')}
                  items={kidsItems}
                  isLoading={isLoadingKids}
                  viewAllHref={ROUTES.USER.KIDS}
                  icon={<CATEGORY_ICONS.Kids className="h-5 w-5 text-yellow-400" />}
                />
              )}

              {/* 5. Anime (Conditional) */}
              {animeItems.length > 0 && (
                <ContentRail
                  title={t('user.menu.anime')}
                  items={animeItems}
                  isLoading={isLoadingAnime}
                  viewAllHref={ROUTES.USER.ANIME}
                  icon={<CATEGORY_ICONS.Anime className="h-5 w-5 text-pink-500" />}
                />
              )}

              {/* Quick Browse Categories — only shown when genres exist in content */}
              {dynamicGenres.length > 0 && (
                <section className="px-6 sm:px-10 pt-8">
                  <div className="flex items-center gap-2 mb-6">
                    <Search className="h-5 w-5 text-slate-400" />
                    <h3 className="text-xl font-bold text-white">{t('user.dashboard.browse')}</h3>
                  </div>
                  <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-6 gap-4">
                    {dynamicGenres.map((cat) => (
                      <Link
                        key={cat.label}
                        href={`${ROUTES.CONTENT.BROWSE}?category=${cat.label}`}
                        className="relative h-24 rounded-xl overflow-hidden group hover:scale-105 transition-transform duration-300"
                      >
                        <div className={`absolute inset-0 bg-gradient-to-br ${cat.color}`} />
                        <div className="absolute inset-0 flex items-center justify-center">
                          <span className="text-white font-bold tracking-wide">{cat.label}</span>
                        </div>
                      </Link>
                    ))}
                  </div>
                </section>
              )}

            </div>
          </div>
        </UserRoute>
      );
    }