"use client"

import { useEffect, useState } from "react"
import { getApiUrl } from "@/lib/api-config"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { Badge } from "@/components/ui/badge"
import { Skeleton } from "@/components/ui/skeleton"
import { Youtube, Calendar, MapPin, Music, Film } from "lucide-react"
import Link from "next/link"

interface PerformanceVideo {
    type: "performance"
    id: number
    youtube_link: string
    show_id: number
    song_id: number
    song_title: string
    song_slug: string
    date: string
    show_slug: string
    venue_name: string
    venue_city: string
    venue_state: string | null
}

interface ShowVideo {
    type: "full_show"
    id: number
    youtube_link: string
    date: string
    show_slug: string
    venue_name: string
    venue_city: string
    venue_state: string | null
}

interface VideoStats {
    performance_videos: number
    full_show_videos: number
    total: number
}

export default function VideosPage() {
    const [performances, setPerformances] = useState<PerformanceVideo[]>([])
    const [shows, setShows] = useState<ShowVideo[]>([])
    const [stats, setStats] = useState<VideoStats | null>(null)
    const [loading, setLoading] = useState(true)
    const [activeTab, setActiveTab] = useState<"all" | "songs" | "shows">("all")

    useEffect(() => {
        Promise.all([
            fetch(`${getApiUrl()}/videos/?limit=500`).then(r => r.json()),
            fetch(`${getApiUrl()}/videos/stats`).then(r => r.json())
        ])
            .then(([videoData, statsData]) => {
                setPerformances(videoData.performances)
                setShows(videoData.shows)
                setStats(statsData)
            })
            .catch(console.error)
            .finally(() => setLoading(false))
    }, [])

    const extractVideoId = (url: string) => {
        const match = url.match(/[?&]v=([^&]+)/)
        return match ? match[1] : null
    }

    if (loading) {
        return (
            <div className="container py-10 space-y-6">
                <Skeleton className="h-10 w-48" />
                <div className="space-y-2">
                    {Array.from({ length: 10 }).map((_, i) => (
                        <Skeleton key={i} className="h-12 w-full" />
                    ))}
                </div>
            </div>
        )
    }

    const filteredPerformances = activeTab === "shows" ? [] : performances
    const filteredShows = activeTab === "songs" ? [] : shows

    // Combine and sort by date
    const allVideos = [
        ...filteredPerformances.map(p => ({ ...p, sortDate: p.date })),
        ...filteredShows.map(s => ({ ...s, sortDate: s.date, song_title: "Full Show" }))
    ].sort((a, b) => new Date(b.sortDate).getTime() - new Date(a.sortDate).getTime())

    return (
        <div className="container py-10 space-y-8">
            <div className="flex flex-col gap-4">
                <div className="flex items-center gap-3">
                    <Youtube className="h-8 w-8 text-red-600" />
                    <h1 className="text-3xl font-bold tracking-tight">Videos</h1>
                </div>
                {stats && (
                    <p className="text-muted-foreground">
                        {stats.total} videos available • {stats.full_show_videos} full shows • {stats.performance_videos} song performances
                    </p>
                )}
            </div>

            {/* Filter Tabs */}
            <div className="flex gap-2">
                <button
                    onClick={() => setActiveTab("all")}
                    className={`px-4 py-2 rounded-lg text-sm font-medium transition-colors ${activeTab === "all"
                            ? "bg-primary text-primary-foreground"
                            : "bg-muted hover:bg-muted/80"
                        }`}
                >
                    All Videos
                </button>
                <button
                    onClick={() => setActiveTab("songs")}
                    className={`px-4 py-2 rounded-lg text-sm font-medium transition-colors ${activeTab === "songs"
                            ? "bg-primary text-primary-foreground"
                            : "bg-muted hover:bg-muted/80"
                        }`}
                >
                    <Music className="h-4 w-4 inline mr-1" />
                    Songs ({stats?.performance_videos})
                </button>
                <button
                    onClick={() => setActiveTab("shows")}
                    className={`px-4 py-2 rounded-lg text-sm font-medium transition-colors ${activeTab === "shows"
                            ? "bg-primary text-primary-foreground"
                            : "bg-muted hover:bg-muted/80"
                        }`}
                >
                    <Film className="h-4 w-4 inline mr-1" />
                    Full Shows ({stats?.full_show_videos})
                </button>
            </div>

            {/* Video List */}
            <Card>
                <CardContent className="p-0">
                    <div className="divide-y">
                        {allVideos.map((video, idx) => (
                            <div
                                key={`${video.type}-${video.id}-${idx}`}
                                className="flex items-center gap-4 p-4 hover:bg-muted/50 transition-colors"
                            >
                                {/* YouTube Icon/Link */}
                                <a
                                    href={video.youtube_link}
                                    target="_blank"
                                    rel="noopener noreferrer"
                                    className="shrink-0 text-red-600 hover:text-red-500 transition-colors"
                                    title="Watch on YouTube"
                                >
                                    <Youtube className="h-6 w-6" />
                                </a>

                                {/* Content */}
                                <div className="flex-1 min-w-0">
                                    <div className="flex items-center gap-2 flex-wrap">
                                        {video.type === "full_show" ? (
                                            <Link
                                                href={`/shows/${video.show_slug || video.id}`}
                                                className="font-medium hover:underline text-primary"
                                            >
                                                Full Show
                                            </Link>
                                        ) : (
                                            <Link
                                                href={`/songs/${(video as PerformanceVideo).song_slug || (video as PerformanceVideo).song_id}`}
                                                className="font-medium hover:underline"
                                            >
                                                {(video as PerformanceVideo).song_title}
                                            </Link>
                                        )}
                                        <Badge variant={video.type === "full_show" ? "default" : "secondary"} className="text-xs">
                                            {video.type === "full_show" ? "Full Show" : "Song"}
                                        </Badge>
                                    </div>
                                    <div className="flex items-center gap-3 text-sm text-muted-foreground mt-1">
                                        <span className="flex items-center gap-1">
                                            <Calendar className="h-3 w-3" />
                                            {new Date(video.date).toLocaleDateString(undefined, {
                                                year: "numeric",
                                                month: "short",
                                                day: "numeric"
                                            })}
                                        </span>
                                        <span className="flex items-center gap-1">
                                            <MapPin className="h-3 w-3" />
                                            {video.venue_name}, {video.venue_city}
                                            {video.venue_state && `, ${video.venue_state}`}
                                        </span>
                                    </div>
                                </div>

                                {/* Show Link */}
                                <Link
                                    href={`/shows/${video.show_slug || (video.type === "full_show" ? video.id : (video as PerformanceVideo).show_id)}`}
                                    className="text-sm text-muted-foreground hover:text-foreground transition-colors shrink-0"
                                >
                                    View Show →
                                </Link>
                            </div>
                        ))}
                    </div>
                </CardContent>
            </Card>
        </div>
    )
}