import { Button } from "@/components/ui/button"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { ArrowLeft, Calendar, MapPin, ChevronRight, ChevronLeft, Music, Clock, Hash, Play, ExternalLink, Sparkles, Youtube } from "lucide-react"
import Link from "next/link"
import { notFound } from "next/navigation"
import { getApiUrl } from "@/lib/api-config"
import { CommentSection } from "@/components/social/comment-section"
import { EntityReviews } from "@/components/reviews/entity-reviews"
import { SocialWrapper } from "@/components/social/social-wrapper"
import { EntityRating } from "@/components/social/entity-rating"
import { Badge } from "@/components/ui/badge"
import { YouTubeEmbed } from "@/components/ui/youtube-embed"

async function getPerformance(id: string) {
    try {
        const res = await fetch(`${getApiUrl()}/performances/${id}`, { cache: 'no-store' })
        if (!res.ok) return null
        return res.json()
    } catch (e) {
        console.error(e)
        return null
    }
}

export default async function PerformanceDetailPage({ params }: { params: Promise<{ slug: string }> }) {
    const { slug } = await params
    const performance = await getPerformance(slug)

    if (!performance) {
        notFound()
    }

    const showDate = new Date(performance.show.date)
    const formattedDate = showDate.toLocaleDateString("en-US", {
        weekday: "long",
        year: "numeric",
        month: "long",
        day: "numeric"
    })

    return (
        <div className="flex flex-col gap-6">
            {/* Hero Banner - Distinct from Song page */}
            <div className="relative -mx-4 -mt-4 px-4 pt-6 pb-8 bg-gradient-to-br from-primary/10 via-primary/5 to-transparent border-b">
                {/* Breadcrumbs */}
                <nav className="flex items-center gap-1 text-sm text-muted-foreground mb-4">
                    <Link href={`/shows/${performance.show.slug}`} className="hover:text-foreground transition-colors">
                        Show
                    </Link>
                    <ChevronRight className="h-4 w-4" />
                    <Link
                        href={`/songs/${performance.song.slug}`}
                        className="hover:text-foreground transition-colors"
                    >
                        {performance.song.title}
                    </Link>
                    <ChevronRight className="h-4 w-4" />
                    <span className="text-foreground font-medium">This Performance</span>
                </nav>

                <div className="flex flex-col md:flex-row md:items-start md:justify-between gap-6">
                    <div className="flex items-start gap-4">
                        <Link href={`/shows/${performance.show.slug}`}>
                            <Button variant="outline" size="icon" className="mt-1">
                                <ArrowLeft className="h-4 w-4" />
                            </Button>
                        </Link>
                        <div>
                            {/* Context Badge */}
                            <div className="flex items-center gap-2 mb-2 flex-wrap">
                                <Badge variant="secondary" className="bg-primary/10 text-primary border-primary/20">
                                    <Sparkles className="h-3 w-3 mr-1" />
                                    Specific Performance
                                </Badge>
                                {performance.is_heady && (
                                    <Badge className="bg-yellow-500/10 text-yellow-600 border-yellow-500/20 border">
                                        <Sparkles className="h-3 w-3 mr-1" />
                                        Heady Version
                                    </Badge>
                                )}
                                {performance.rank && performance.total_versions && (
                                    <Badge variant="outline" className="font-mono">
                                        #{performance.rank} of {performance.total_versions}
                                    </Badge>
                                )}
                                {performance.set_name && (
                                    <Badge variant="outline">{performance.set_name}</Badge>
                                )}
                                {performance.position && (
                                    <Badge variant="outline" className="font-mono">
                                        #{performance.position}
                                    </Badge>
                                )}
                            </div>

                            {/* Song Title (links to song page) */}
                            <h1 className="text-3xl md:text-4xl font-bold tracking-tight">
                                <Link
                                    href={`/songs/${performance.song.slug}`}
                                    className="hover:text-primary transition-colors"
                                >
                                    {performance.song.title}
                                </Link>
                            </h1>

                            {/* Nicknames */}
                            {performance.nicknames && performance.nicknames.length > 0 && (
                                <div className="flex flex-wrap gap-2 mt-2">
                                    {performance.nicknames.map((nick: any) => (
                                        <span
                                            key={nick.id}
                                            className="text-lg italic text-yellow-600 dark:text-yellow-400"
                                            title={nick.description}
                                        >
                                            &quot;{nick.nickname}&quot;
                                        </span>
                                    ))}
                                </div>
                            )}

                            {/* Show Context - THE KEY DIFFERENTIATOR */}
                            <div className="mt-4 p-3 rounded-lg bg-background/80 border inline-flex flex-col gap-1">
                                <Link
                                    href={`/shows/${performance.show.slug}`}
                                    className="font-semibold text-lg hover:text-primary transition-colors flex items-center gap-2"
                                >
                                    <Calendar className="h-4 w-4" />
                                    {formattedDate}
                                </Link>
                                {performance.show.venue && (
                                    <Link
                                        href={`/venues/${performance.show.venue.slug}`}
                                        className="text-muted-foreground hover:text-foreground flex items-center gap-2 transition-colors"
                                    >
                                        <MapPin className="h-4 w-4" />
                                        {performance.show.venue.name}, {performance.show.venue.city}
                                        {performance.show.venue.state && `, ${performance.show.venue.state}`}
                                    </Link>
                                )}
                            </div>
                        </div>
                    </div>

                    {/* Rating Box */}
                    <div className="md:text-right">
                        <div className="text-xs uppercase font-medium text-muted-foreground mb-2">
                            Rate This Version
                        </div>
                        <SocialWrapper type="ratings">
                            <EntityRating
                                entityType="performance"
                                entityId={performance.id}
                                rank={performance.rank}
                                ratingCount={performance.rating_count}
                                isHeady={performance.is_heady}
                            />
                        </SocialWrapper>
                    </div>
                </div>
            </div>

            <div className="grid gap-6 md:grid-cols-[1fr_300px]">
                <div className="flex flex-col gap-6">
                    {/* Video Section - Show when performance has a video */}
                    {performance.youtube_link && (
                        <Card className="border-2 border-red-500/20 bg-gradient-to-br from-red-500/5 to-transparent">
                            <CardHeader className="pb-2">
                                <CardTitle className="text-sm font-medium text-muted-foreground flex items-center gap-2">
                                    <Youtube className="h-4 w-4 text-red-500" />
                                    Video
                                </CardTitle>
                            </CardHeader>
                            <CardContent>
                                <YouTubeEmbed
                                    url={performance.youtube_link}
                                    title={`${performance.song.title} - ${formattedDate}`}
                                />
                            </CardContent>
                        </Card>
                    )}

                    {/* Version Navigation - Prominent */}
                    <Card className="border-2">
                        <CardHeader className="pb-2">
                            <CardTitle className="text-sm font-medium text-muted-foreground flex items-center gap-2">
                                <Clock className="h-4 w-4" />
                                Version Timeline
                            </CardTitle>
                        </CardHeader>
                        <CardContent>
                            <div className="flex items-center justify-between gap-4">
                                {performance.previous_performance_id ? (
                                    <Link
                                        href={`/performances/${performance.previous_performance_slug}`}
                                        className="flex-1"
                                    >
                                        <Button variant="outline" className="w-full justify-start gap-2">
                                            <ChevronLeft className="h-4 w-4" />
                                            <div className="text-left">
                                                <div className="text-xs text-muted-foreground">Previous</div>
                                                <div className="font-medium">Earlier Version</div>
                                            </div>
                                        </Button>
                                    </Link>
                                ) : (
                                    <div className="flex-1 p-3 rounded-md bg-muted/50 text-center text-sm text-muted-foreground">
                                        🎉 Debut Performance
                                    </div>
                                )}

                                <div className="text-center px-4">
                                    <div className="text-2xl font-bold">#{performance.times_played || "?"}</div>
                                    <div className="text-xs text-muted-foreground">of all time</div>
                                </div>

                                {performance.next_performance_id ? (
                                    <Link
                                        href={`/performances/${performance.next_performance_slug}`}
                                        className="flex-1"
                                    >
                                        <Button variant="outline" className="w-full justify-end gap-2">
                                            <div className="text-right">
                                                <div className="text-xs text-muted-foreground">Next</div>
                                                <div className="font-medium">Later Version</div>
                                            </div>
                                            <ChevronRight className="h-4 w-4" />
                                        </Button>
                                    </Link>
                                ) : (
                                    <div className="flex-1 p-3 rounded-md bg-muted/50 text-center text-sm text-muted-foreground">
                                        Most Recent
                                    </div>
                                )}
                            </div>
                        </CardContent>
                    </Card>

                    {/* Notes & Details */}
                    {(performance.notes || performance.segue || performance.track_url) && (
                        <Card>
                            <CardHeader>
                                <CardTitle>About This Performance</CardTitle>
                            </CardHeader>
                            <CardContent className="space-y-4">
                                {performance.notes && (
                                    <div>
                                        <h3 className="font-medium text-sm mb-1 text-muted-foreground">Notes</h3>
                                        <p className="text-foreground">{performance.notes}</p>
                                    </div>
                                )}
                                {performance.segue && (
                                    <div className="flex items-center gap-2 p-2 rounded-md bg-primary/10 text-primary">
                                        <Music className="h-4 w-4" />
                                        <span className="font-medium">Segues into next song →</span>
                                    </div>
                                )}
                                {performance.track_url && (
                                    <a
                                        href={performance.track_url}
                                        target="_blank"
                                        rel="noopener noreferrer"
                                        className="inline-flex items-center gap-2 text-primary hover:underline"
                                    >
                                        <Play className="h-4 w-4" />
                                        Listen to this performance
                                        <ExternalLink className="h-3 w-3" />
                                    </a>
                                )}
                            </CardContent>
                        </Card>
                    )}

                    {/* Comments */}
                    <SocialWrapper type="comments">
                        <CommentSection entityType="performance" entityId={performance.id} />
                    </SocialWrapper>

                    {/* Reviews */}
                    <SocialWrapper type="reviews">
                        <EntityReviews
                            entityType="performance"
                            entityId={performance.id}
                            entityName={`${performance.song.title} - ${formattedDate}`}
                        />
                    </SocialWrapper>
                </div>

                {/* Sidebar */}
                <div className="flex flex-col gap-4">
                    {/* Quick Stats */}
                    <Card>
                        <CardHeader className="pb-2">
                            <CardTitle className="text-sm font-medium text-muted-foreground">
                                Performance Stats
                            </CardTitle>
                        </CardHeader>
                        <CardContent className="space-y-3">
                            <div className="flex justify-between items-center">
                                <span className="text-muted-foreground">Set Position</span>
                                <span className="font-mono font-bold">
                                    {performance.set_name || "—"} #{performance.position || "—"}
                                </span>
                            </div>
                            <div className="flex justify-between items-center">
                                <span className="text-muted-foreground">Gap Since Last</span>
                                <span className="font-mono font-bold">
                                    {performance.gap !== undefined ? `${performance.gap} shows` : "—"}
                                </span>
                            </div>
                            <div className="flex justify-between items-center">
                                <span className="text-muted-foreground">Times Played</span>
                                <span className="font-mono font-bold">
                                    {performance.times_played || "—"}
                                </span>
                            </div>
                        </CardContent>
                    </Card>

                    {/* Top Rated Versions */}
                    {performance.other_performances && performance.other_performances.length > 0 && (
                        <Card>
                            <CardHeader className="pb-2">
                                <CardTitle className="text-sm font-medium text-muted-foreground flex items-center gap-2">
                                    <Sparkles className="h-4 w-4 text-yellow-500" />
                                    Top Rated Versions
                                </CardTitle>
                            </CardHeader>
                            <CardContent className="space-y-3">
                                {performance.other_performances.slice(0, 5).map((perf: any) => (
                                    <Link
                                        key={perf.id}
                                        href={`/performances/${perf.slug}`}
                                        className="flex items-start justify-between group"
                                    >
                                        <div className="flex flex-col">
                                            <span className="font-medium group-hover:text-primary transition-colors text-sm">
                                                {new Date(perf.show_date).toLocaleDateString()}
                                            </span>
                                            <span className="text-xs text-muted-foreground">
                                                {perf.venue_name}
                                            </span>
                                        </div>
                                        {perf.avg_rating > 0 && (
                                            <div className="flex items-center gap-1 bg-secondary px-1.5 py-0.5 rounded text-xs font-mono">
                                                <span className="text-yellow-500 text-[10px]">★</span>
                                                <span>{perf.avg_rating.toFixed(1)}</span>
                                            </div>
                                        )}
                                    </Link>
                                ))}
                                <Link
                                    href={`/songs/${performance.song.slug}`}
                                    className="block text-xs text-center text-muted-foreground hover:text-primary pt-2 border-t mt-2"
                                >
                                    View all {performance.other_performances.length + 1} versions →
                                </Link>
                            </CardContent>
                        </Card>
                    )}

                    {/* Quick Links */}
                    <Card>
                        <CardHeader className="pb-2">
                            <CardTitle className="text-sm font-medium text-muted-foreground">
                                Related Pages
                            </CardTitle>
                        </CardHeader>
                        <CardContent className="space-y-2">
                            <Link
                                href={`/songs/${performance.song.slug}`}
                                className="flex items-center gap-2 p-2 rounded-md hover:bg-muted transition-colors"
                            >
                                <Music className="h-4 w-4 text-muted-foreground" />
                                <span>All versions of {performance.song.title}</span>
                            </Link>
                            <Link
                                href={`/shows/${performance.show.slug}`}
                                className="flex items-center gap-2 p-2 rounded-md hover:bg-muted transition-colors"
                            >
                                <Calendar className="h-4 w-4 text-muted-foreground" />
                                <span>Full show setlist</span>
                            </Link>
                            {performance.show.venue && (
                                <Link
                                    href={`/venues/${performance.show.venue.slug}`}
                                    className="flex items-center gap-2 p-2 rounded-md hover:bg-muted transition-colors"
                                >
                                    <MapPin className="h-4 w-4 text-muted-foreground" />
                                    <span>{performance.show.venue.name}</span>
                                </Link>
                            )}
                        </CardContent>
                    </Card>
                </div>
            </div>
        </div>
    )
}
