# All files / src/components/user ModernEPGGuide.tsx

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     /* eslint-disable @typescript-eslint/no-unused-vars */
    /* eslint-disable @next/next/no-img-element */
    'use client';

    import React, { useState, useEffect, useMemo, useRef } from 'react';
    import { format, addHours, startOfHour, isWithinInterval, differenceInMinutes, addMinutes } from 'date-fns';
    import { Clock, Calendar, ChevronLeft, ChevronRight, Loader2, Play, Info, Search, Filter, X } from 'lucide-react';
    import { Button } from '@/components/ui/button';
    import { Input } from '@/components/ui/input';
    import { apiService } from '@/services';
    import { cn } from '@/lib/utils';
    import { toast } from 'sonner';
    import { useTranslation } from 'react-i18next';

    interface Channel {
      id: number;
      title: string;
      logo_url?: string;
      image_url?: string;
      provider?: string;
    }

    interface Program {
      channel_id: string;
      title: string;
      description?: string;
      start: string;
      end: string;
      category?: string;
    }

    interface EPGApiResponse {
      programs?: Program[];
    }

    interface ModernEPGGuideProps {
      channels: Channel[];
      selectedChannelId?: number | null;
      onChannelSelect?: (channel: Channel) => void;
      showHeader?: boolean;
      className?: string;
    }

    const HOUR_WIDTH = 280; // pixels per hour
    const CHANNEL_HEIGHT = 80; // pixels per channel
    const TIMELINE_HEIGHT = 50;
    const CHANNEL_SIDEBAR_WIDTH = 220;

    // Category colors with refined modern gradients
    const getCategoryStyle = (category?: string) => {
      const styles: Record<string, string> = {
        'Sports': 'bg-gradient-to-r from-blue-900/40 to-blue-800/40 border-blue-500/30 hover:border-blue-400/60 text-blue-100',
        'News': 'bg-gradient-to-r from-orange-900/40 to-orange-800/40 border-orange-500/30 hover:border-orange-400/60 text-orange-100',
        'Movies': 'bg-gradient-to-r from-purple-900/40 to-purple-800/40 border-purple-500/30 hover:border-purple-400/60 text-purple-100',
        'Series': 'bg-gradient-to-r from-teal-900/40 to-teal-800/40 border-teal-500/30 hover:border-teal-400/60 text-teal-100',
        'Kids': 'bg-gradient-to-r from-pink-900/40 to-pink-800/40 border-pink-500/30 hover:border-pink-400/60 text-pink-100',
        'Entertainment': 'bg-gradient-to-r from-amber-900/40 to-amber-800/40 border-amber-500/30 hover:border-amber-400/60 text-amber-100'
      };
      return styles[category || 'Live'] || 'bg-gradient-to-r from-slate-900/40 to-slate-800/40 border-slate-700/50 hover:border-slate-500/60 text-slate-200';
    };

    export default function ModernEPGGuide({
      channels,
      selectedChannelId,
      onChannelSelect,
      showHeader = true,
      className }: ModernEPGGuideProps) {
      const { t } = useTranslation();
      const [programs, setPrograms] = useState<Program[]>([]);
      const [isLoading, setIsLoading] = useState(false);
      const [currentTime, setCurrentTime] = useState(new Date());
      const [selectedProgram, setSelectedProgram] = useState<Program | null>(null);
      const [searchQuery, setSearchQuery] = useState('');
      const [selectedCategory, setSelectedCategory] = useState<string | null>(null);
      const [timeRange, setTimeRange] = useState({
        start: startOfHour(new Date()),
        end: addHours(startOfHour(new Date()), 6) // Show 6 hours initially
      });

      const scrollContainerRef = useRef<HTMLDivElement>(null);
      const timelineRef = useRef<HTMLDivElement>(null);

      useEffect(() => {
        const interval = setInterval(() => {
          setCurrentTime(new Date());
        }, 60000);
        return () => clearInterval(interval);
      }, []);

      useEffect(() => {
        if (channels.length === 0) return;

        const fetchEPG = async () => {
          setIsLoading(true);
          try {
            const channelIds = channels.map(c => c.id).join(',');
            const startTime = timeRange.start.toISOString();
            const endTime = timeRange.end.toISOString();

            const result = await apiService.get<EPGApiResponse>(
              `/api/tv/epg?channel_ids=${channelIds}&start=${startTime}&end=${endTime}`
            );

            const data = result.data as EPGApiResponse | undefined;
            if (result.success && data?.programs) {
              setPrograms(data.programs);
            } else {
              setPrograms([]);
            }
          } catch (error) {
            console.error('Error fetching EPG:', error);
            toast.error(t('common.error'));
            setPrograms([]);
          } finally {
            setIsLoading(false);
          }
        };

        fetchEPG();
      }, [channels, timeRange]);

      useEffect(() => {
        if (scrollContainerRef.current && !isLoading) {
          const minutesFromStart = differenceInMinutes(currentTime, timeRange.start);
          // Center current time a bit better
          const scrollPosition = (minutesFromStart / 60) * HOUR_WIDTH - (window.innerWidth / 3);
          scrollContainerRef.current.scrollLeft = Math.max(0, scrollPosition);
        }
      }, [isLoading]);

      const handleScroll = (e: React.UIEvent<HTMLDivElement>) => {
        if (timelineRef.current) {
          timelineRef.current.scrollLeft = e.currentTarget.scrollLeft;
        }
      };

      const navigateTime = (hours: number) => {
        setTimeRange(prev => ({
          start: addHours(prev.start, hours),
          end: addHours(prev.end, hours)
        }));
      };

      const getChannelPrograms = (channelId: number) => {
        return programs.filter(p => p.channel_id === String(channelId));
      };

      const getProgramStyle = (program: Program) => {
        const start = new Date(program.start);
        const end = new Date(program.end);
        const minutesFromStart = differenceInMinutes(start, timeRange.start);
        const duration = differenceInMinutes(end, start);

        const left = (minutesFromStart / 60) * HOUR_WIDTH;
        const width = (duration / 60) * HOUR_WIDTH;

        return {
          left: `${left}px`,
          width: `${Math.max(width, 60)}px`
        };
      };

      const isCurrentlyAiring = (program: Program) => {
        return isWithinInterval(currentTime, {
          start: new Date(program.start),
          end: new Date(program.end)
        });
      };

      const filteredChannels = useMemo(() => {
        if (!searchQuery && !selectedCategory) return channels;

        return channels.filter(channel => {
          const channelPrograms = getChannelPrograms(channel.id);

          if (searchQuery) {
            const matchesSearch = channel.title.toLowerCase().includes(searchQuery.toLowerCase()) ||
              channelPrograms.some(p =>
                p.title.toLowerCase().includes(searchQuery.toLowerCase()) ||
                p.description?.toLowerCase().includes(searchQuery.toLowerCase())
              );
            if (!matchesSearch) return false;
          }

          if (selectedCategory) {
            const hasCategory = channelPrograms.some(p => p.category === selectedCategory);
            if (!hasCategory) return false;
          }

          return true;
        });
      }, [channels, searchQuery, selectedCategory, programs]);

      const categories = useMemo(() => {
        const cats = new Set(programs.map(p => p.category).filter(Boolean));
        return Array.from(cats);
      }, [programs]);

      const timelineHours = useMemo(() => {
        const hours = [];
        let current = timeRange.start;
        while (current < timeRange.end) {
          hours.push(current);
          current = addHours(current, 1);
        }
        return hours;
      }, [timeRange]);

      const currentTimePosition = useMemo(() => {
        const minutesFromStart = differenceInMinutes(currentTime, timeRange.start);
        return (minutesFromStart / 60) * HOUR_WIDTH;
      }, [currentTime, timeRange]);

      return (
        <div className={cn('flex flex-col h-full bg-[#080808]', className)}>
          {/* Header */}
          {showHeader && (
            <div className="flex-shrink-0 bg-[#080808] border-b border-white/5 p-4 z-20">
              <div className="flex items-center justify-between gap-4 max-w-[2000px] mx-auto">
                <div className="flex items-center gap-3">
                  <div className="p-2 bg-gradient-to-br from-blue-600 to-purple-600 rounded-xl shadow-lg">
                    <Calendar className="w-6 h-6 text-white" />
                  </div>
                  <div>
                    <h2 className="text-2xl font-bold text-white">
                      {t('user.live.toggleGuide')}
                    </h2>
                    <p className="text-sm text-slate-400">
                      {format(currentTime, 'EEEE, MMMM d, yyyy')}
                    </p>
                  </div>
                </div>

                <div className="flex items-center gap-3 flex-1 max-w-2xl">
                  <div className="relative flex-1 group">
                    <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-slate-500 group-focus-within:text-blue-400 transition-colors" />
                    <Input
                      type="text"
                      placeholder={t('user.filters.searchChannels')}
                      value={searchQuery}
                      onChange={(e) => setSearchQuery(e.target.value)}
                      className="pl-10 bg-white/5 border-white/10 text-white placeholder:text-slate-600 focus:border-blue-500/50 focus:bg-white/10 rounded-xl"
                    />
                    {searchQuery && (
                      <button
                        onClick={() => setSearchQuery('')}
                        className="absolute right-3 top-1/2 -translate-y-1/2 text-slate-500 hover:text-white"
                      >
                        <X className="w-4 h-4" />
                      </button>
                    )}
                  </div>

                  <div className="flex items-center gap-2">
                    <Filter className="w-4 h-4 text-slate-500" />
                    <select
                      value={selectedCategory || ''}
                      onChange={(e) => setSelectedCategory(e.target.value || null)}
                      className="bg-white/5 border border-white/10 text-slate-300 rounded-xl px-3 py-2 text-sm focus:border-blue-500/50 focus:outline-none"
                    >
                      <option value="">{`${t('common.all')} ${t('common.category')}`}</option>
                      {categories.map(cat => (
                        <option key={cat} value={cat}>{cat}</option>
                      ))}
                    </select>
                  </div>
                </div>

                <div className="flex items-center gap-2">
                  <Button
                    onClick={() => navigateTime(-3)}
                    variant="outline"
                    size="sm"
                    className="bg-white/5 border-white/10 hover:bg-white/10 text-slate-300"
                  >
                    <ChevronLeft className="w-4 h-4 mr-1" />
                    -3h
                  </Button>
                  <div className="flex items-center gap-2 px-4 py-2 bg-white/5 border border-white/10 rounded-xl">
                    <Clock className="w-4 h-4 text-blue-400" />
                    <span className="text-sm font-medium text-white">
                      {format(currentTime, 'HH:mm')}
                    </span>
                  </div>
                  <Button
                    onClick={() => navigateTime(3)}
                    variant="outline"
                    size="sm"
                    className="bg-white/5 border-white/10 hover:bg-white/10 text-slate-300"
                  >
                    +3h
                    <ChevronRight className="w-4 h-4 ml-1" />
                  </Button>
                </div>
              </div>
            </div>
          )}

          {/* EPG Content */}
          <div className="flex-1 flex overflow-hidden relative">
            {isLoading ? (
              <div className="flex-1 flex items-center justify-center bg-[#080808]">
                <div className="text-center">
                  <Loader2 className="w-12 h-12 animate-spin text-blue-500 mx-auto mb-4" />
                  <p className="text-slate-400">{t('common.loading')}</p>
                </div>
              </div>
            ) : (
              <>
                {/* Combined Scroll Container for Sidebar + Grid to ensure Y-sync */}
                <div className="absolute inset-0 flex flex-col">
                  {/* Fixed Timeline Header */}
                  <div className="flex flex-shrink-0 border-b border-white/5 bg-[#080808] z-20">
                    <div style={{ width: `${CHANNEL_SIDEBAR_WIDTH}px` }} className="flex-shrink-0 bg-[#0A0A0A] border-r border-white/5 flex items-center px-6">
                      <span className="text-xs font-bold text-slate-500 uppercase tracking-widest">{t('user.live.toggleChannels')}</span>
                    </div>
                    <div
                      ref={timelineRef}
                      className="flex-1 overflow-hidden"
                    >
                      <div className="relative h-full flex" style={{ width: `${timelineHours.length * HOUR_WIDTH}px`, height: `${TIMELINE_HEIGHT}px` }}>
                        {timelineHours.map((hour, index) => (
                          <div
                            key={index}
                            className="border-l border-white/5 px-4 flex items-center"
                            style={{ width: `${HOUR_WIDTH}px` }}
                          >
                            <div>
                              <div className="text-sm font-medium text-slate-300">
                                {format(hour, 'HH:mm')}
                              </div>
                            </div>
                          </div>
                        ))}
                        {/* Indicator Top */}
                        {currentTimePosition >= 0 && currentTimePosition <= timelineHours.length * HOUR_WIDTH && (
                          <div
                            className="absolute bottom-0 w-0 z-30 flex flex-col items-center"
                            style={{ left: `${currentTimePosition}px` }}
                          >
                            <div className="w-0 h-0 border-l-[6px] border-l-transparent border-r-[6px] border-r-transparent border-t-[6px] border-t-red-500 transform translate-y-1/2" />
                          </div>
                        )}
                      </div>
                    </div>
                  </div>

                  {/* Main Scroll Area */}
                  <div
                    ref={scrollContainerRef}
                    onScroll={handleScroll}
                    className="flex-1 overflow-auto scrollbar-thin scrollbar-thumb-white/10 scrollbar-track-black"
                  >
                    <div className="flex relative" style={{ minWidth: `${CHANNEL_SIDEBAR_WIDTH + timelineHours.length * HOUR_WIDTH}px` }}>

                      {/* Sticky Sidebar Column – z-20 so it stays above live EPG items (z-10) */}
                      <div className="sticky left-0 z-20 bg-[#0A0A0A] border-r border-white/5 w-[220px] flex-shrink-0 shadow-[4px_0_24px_rgba(0,0,0,0.5)]">
                        {filteredChannels.map(channel => {
                          const isPlaying = selectedChannelId === channel.id;
                          return (
                            <div
                              key={channel.id}
                              className={cn(
                                "flex items-center gap-3 p-4 border-b border-white/5 hover:bg-white/5 transition-colors cursor-pointer group h-[80px]",
                                isPlaying && "bg-gradient-to-r from-blue-600/20 to-purple-600/20 border-l-4 border-l-blue-500 hover:bg-blue-600/30"
                              )}
                              onClick={() => onChannelSelect?.(channel)}
                            >
                              <div className={cn(
                                "w-10 h-10 rounded-lg bg-white/5 flex items-center justify-center p-1 group-hover:bg-white/10 transition-colors",
                                isPlaying && "bg-blue-500/20 ring-2 ring-blue-500/50"
                              )}>
                                {channel.logo_url || channel.image_url ? (
                                  <img
                                    src={channel.image_url || channel.logo_url}
                                    alt={channel.title}
                                    className="w-full h-full object-contain"
                                    onError={(e) => {
                                      // Hide broken image and let parent show initial
                                      (e.target as HTMLImageElement).style.display = 'none';
                                      (e.target as HTMLImageElement).onerror = null;
                                    }}
                                  />
                                ) : (
                                  <span className="text-xs font-bold text-slate-500">
                                    {channel.title.charAt(0)}
                                  </span>
                                )}
                              </div>
                              <div className="flex-1 min-w-0">
                                <div className="flex items-center gap-2">
                                  <h3 className={cn(
                                    "font-medium text-sm truncate transition-colors",
                                    isPlaying ? "text-blue-400" : "text-slate-200 group-hover:text-blue-400"
                                  )}>
                                    {channel.title}
                                  </h3>
                                  {isPlaying && (
                                    <span className="px-1.5 py-0.5 bg-red-500 text-white text-[9px] font-bold rounded uppercase animate-pulse">
                                      {t('user.live.liveBadge')}
                                    </span>
                                  )}
                                </div>
                                <div className="flex items-center gap-1.5 mt-0.5">
                                  <span className={cn(
                                    "w-1.5 h-1.5 rounded-full transition-colors",
                                    isPlaying ? "bg-green-500 animate-pulse" : "bg-slate-700 group-hover:bg-green-500"
                                  )} />
                                  <p className="text-[10px] text-slate-500 truncate uppercase tracking-wider">{channel.provider || t('user.live.epg.live')}</p>
                                </div>
                              </div>
                            </div>
                          )
                        })}
                      </div>

                      {/* Programs Grid */}
                      <div className="relative bg-[#080808]">
                        {/* Vertical Time Lines Background */}
                        <div className="absolute inset-0 pointer-events-none flex">
                          {timelineHours.map((_, index) => (
                            <div
                              key={index}
                              className="h-full border-l border-white/5"
                              style={{ width: `${HOUR_WIDTH}px` }}
                            />
                          ))}
                        </div>

                        {/* Current Time Line */}
                        {currentTimePosition >= 0 && currentTimePosition <= timelineHours.length * HOUR_WIDTH && (
                          <div
                            className="absolute top-0 bottom-0 w-[2px] bg-red-500/50 z-10 pointer-events-none shadow-[0_0_12px_rgba(239,68,68,0.6)]"
                            style={{ left: `${currentTimePosition}px` }}
                          />
                        )}

                        {filteredChannels.map((channel) => {
                          const channelPrograms = getChannelPrograms(channel.id);
                          return (
                            <div
                              key={channel.id}
                              className="relative border-b border-white/5 h-[80px] overflow-hidden"
                              style={{ width: `${timelineHours.length * HOUR_WIDTH}px` }}
                            >
                              {channelPrograms.map((program, pIdx) => {
                                const style = getProgramStyle(program);
                                const isLive = isCurrentlyAiring(program);
                                return (
                                  <div
                                    key={pIdx}
                                    onClick={() => setSelectedProgram(program)}
                                    className={cn(
                                      "absolute top-2 bottom-2 rounded-lg border px-3 py-2 cursor-pointer transition-all hover:brightness-110",
                                      getCategoryStyle(program.category),
                                      isLive ? "ring-1 ring-red-500/50 shadow-[0_0_15px_-3px_rgba(239,68,68,0.2)] z-10" : "grayscale-[0.3] hover:grayscale-0"
                                    )}
                                    style={style}
                                  >
                                    <div className="flex flex-col h-full justify-center">
                                      <p className="text-xs font-semibold truncate leading-tight mb-0.5">
                                        {program.title}
                                      </p>
                                      <div className="flex justify-between items-center opacity-60">
                                        <p className="text-[10px] truncate">
                                          {format(new Date(program.start), 'HH:mm')} - {format(new Date(program.end), 'HH:mm')}
                                        </p>
                                        {isLive && <span className="text-[10px] font-bold text-red-300 animate-pulse">{t('user.live.liveBadge')}</span>}
                                      </div>
                                    </div>
                                  </div>
                                )
                              })}
                            </div>
                          )
                        })}
                      </div>
                    </div>
                  </div>
                </div>
              </>
            )}
          </div>

          {/* Program Details Modal */}
          {selectedProgram && (
            <div
              className="fixed inset-0 bg-black/80 backdrop-blur-sm z-50 flex items-center justify-center p-4 animate-in fade-in duration-200"
              onClick={() => setSelectedProgram(null)}
              role="dialog"
              aria-modal="true"
              aria-labelledby="program-title"
              aria-describedby="program-desc"
            >
              <div
                className="bg-[#0f0f0f] rounded-3xl border border-white/10 max-w-2xl w-full p-6 shadow-2xl scale-100 animate-in zoom-in-95 duration-200"
                onClick={(e) => e.stopPropagation()}
              >
                <div className="flex items-start justify-between mb-6">
                  <div className="space-y-1">
                    <div className="flex items-center gap-3 mb-2">
                      {isCurrentlyAiring(selectedProgram) && (
                        <span className="px-2 py-0.5 bg-red-500/20 text-red-400 border border-red-500/20 text-xs font-bold rounded text-uppercase tracking-wider">
                          LIVE
                        </span>
                      )}
                      {selectedProgram.category && (
                        <span className="px-2 py-0.5 bg-blue-500/20 text-blue-400 border border-blue-500/20 text-xs font-bold rounded text-uppercase tracking-wider">
                          {selectedProgram.category}
                        </span>
                      )}
                    </div>
                    <h3 id="program-title" className="text-3xl font-bold text-white leading-tight">{selectedProgram.title}</h3>
                  </div>
                  <Button
                    variant="ghost"
                    size="icon"
                    onClick={() => setSelectedProgram(null)}
                    className="hover:bg-white/10 rounded-full"
                  >
                    <X className="w-5 h-5 text-slate-400" />
                  </Button>
                </div>

                <div className="flex items-center gap-6 text-sm text-slate-400 mb-8 border-y border-white/5 py-4">
                  <div className="flex items-center gap-2">
                    <Clock className="w-4 h-4 text-slate-500" />
                    <span>
                      {format(new Date(selectedProgram.start), 'HH:mm')} - {format(new Date(selectedProgram.end), 'HH:mm')}
                    </span>
                  </div>
                  <div className="flex items-center gap-2">
                    <Calendar className="w-4 h-4 text-slate-500" />
                    <span>{format(new Date(selectedProgram.start), 'MMMM d, yyyy')}</span>
                  </div>
                </div>

                <div id="program-desc">
                  {selectedProgram.description ? (
                    <div className="prose prose-invert max-w-none">
                      <p className="text-slate-300 leading-relaxed text-lg">
                        {selectedProgram.description}
                      </p>
                    </div>
                  ) : (
                    <p className="text-slate-500 italic">{t('createContent.noDescription')}</p>
                  )}
                </div>

                <div className="mt-8 flex justify-end gap-3 filter blur-0 opacity-100">
                  {/* Future actions like "Remind Me" or "Record" could go here */}
                </div>
              </div>
            </div>
          )}
        </div>
      );
    }