import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { Badge } from "@/components/ui/badge"
import { Trophy, Star, Calendar, MapPin, ExternalLink } from "lucide-react"
import Link from "next/link"
import { getApiUrl } from "@/lib/api-config"

interface TopPerformance {
    performance: {
        id: number
        position: number
        set_name: string
        notes?: string
        youtube_link?: string
    }
    song: {
        id: number
        title: string
    }
    show: {
        id: number
        date: string
    }
    venue: {
        id: number
        name: string
        city: string
        state?: string
    }
    avg_score: number
    rating_count: number
}

async function getTopPerformances(): Promise<TopPerformance[]> {
    try {
        const res = await fetch(`${getApiUrl()}/leaderboards/performances/top?limit=50`, {
            cache: 'no-store'
        })
        if (!res.ok) return []
        return res.json()
    } catch (e) {
        console.error('Failed to fetch top performances:', e)
        return []
    }
}

export default async function PerformancesPage() {
    const performances = await getTopPerformances()

    return (
        <div className="flex flex-col gap-6">
            <div className="text-center py-8">
                <h1 className="text-4xl font-bold tracking-tight flex items-center justify-center gap-3">
                    <Trophy className="h-10 w-10 text-yellow-500" />
                    Heady Versions
                </h1>
                <p className="text-muted-foreground mt-2 text-lg">
                    The top-rated performances as voted by the community
                </p>
            </div>

            {performances.length > 0 ? (
                <div className="space-y-3">
                    {performances.map((item, index) => (
                        <Link key={item.performance.id} href={`/performances/${item.performance.id}`}>
                            <Card className={`hover:bg-accent/50 transition-colors cursor-pointer ${index === 0 ? 'border-2 border-yellow-500 bg-gradient-to-r from-yellow-50 to-orange-50 dark:from-yellow-900/10 dark:to-orange-900/10' :
                                    index === 1 ? 'border-gray-300 dark:border-gray-600' :
                                        index === 2 ? 'border-amber-600 dark:border-amber-700' : ''
                                }`}>
                                <CardContent className="p-4">
                                    <div className="flex items-center gap-4">
                                        {/* Rank */}
                                        <div className="text-3xl font-bold w-12 text-center shrink-0">
                                            {index === 0 ? "🥇" : index === 1 ? "🥈" : index === 2 ? "🥉" : <span className="text-muted-foreground">{index + 1}</span>}
                                        </div>

                                        {/* Song & Show Info */}
                                        <div className="flex-1 min-w-0">
                                            <div className="flex items-center gap-2 flex-wrap">
                                                <span className="font-bold text-lg truncate">{item.song.title}</span>
                                                {item.performance.youtube_link && (
                                                    <Badge variant="outline" className="text-red-500 border-red-300">
                                                        <ExternalLink className="h-3 w-3 mr-1" />
                                                        Video
                                                    </Badge>
                                                )}
                                            </div>
                                            <div className="flex items-center gap-4 text-sm text-muted-foreground mt-1">
                                                <span className="flex items-center gap-1">
                                                    <Calendar className="h-4 w-4" />
                                                    {new Date(item.show.date).toLocaleDateString('en-US', {
                                                        month: 'short',
                                                        day: 'numeric',
                                                        year: 'numeric'
                                                    })}
                                                </span>
                                                <span className="flex items-center gap-1">
                                                    <MapPin className="h-4 w-4" />
                                                    {item.venue.name}
                                                    {item.venue.city && ` - ${item.venue.city}`}
                                                    {item.venue.state && `, ${item.venue.state}`}
                                                </span>
                                            </div>
                                            {item.performance.notes && (
                                                <p className="text-xs text-primary mt-1 italic">
                                                    {item.performance.notes}
                                                </p>
                                            )}
                                        </div>

                                        {/* Rating */}
                                        <div className="text-right shrink-0">
                                            <div className="flex items-center gap-1 text-yellow-600">
                                                <Star className="h-5 w-5 fill-current" />
                                                <span className="font-bold text-xl">{item.avg_score.toFixed(1)}</span>
                                            </div>
                                            <div className="text-xs text-muted-foreground">
                                                {item.rating_count} {item.rating_count === 1 ? 'rating' : 'ratings'}
                                            </div>
                                        </div>
                                    </div>
                                </CardContent>
                            </Card>
                        </Link>
                    ))}
                </div>
            ) : (
                <Card className="p-12 text-center">
                    <CardContent>
                        <Trophy className="h-16 w-16 mx-auto mb-4 text-muted-foreground/30" />
                        <h2 className="text-xl font-bold">No rated performances yet</h2>
                        <p className="text-muted-foreground mt-2">
                            Be the first to rate a performance! Browse shows and rate your favorite jams.
                        </p>
                        <Link href="/shows" className="text-primary hover:underline mt-4 inline-block">
                            Browse Shows →
                        </Link>
                    </CardContent>
                </Card>
            )}
        </div>
    )
}
