export const dynamic = 'force-dynamic';

import { createClient } from '@/lib/supabase/server';
import { redirect } from 'next/navigation';
import { checkIsAdmin } from '@/services/track-api-usage';
import Link from 'next/link';
import { ArrowLeft, Wine, User, Calendar, Star, Search, Filter } from 'lucide-react';
import AdminBottlesList from './AdminBottlesList';

export default async function AdminBottlesPage() {
    const supabase = await createClient();
    const { data: { user } } = await supabase.auth.getUser();

    if (!user) {
        redirect('/');
    }

    const isAdmin = await checkIsAdmin(user.id);
    if (!isAdmin) {
        redirect('/');
    }

    // Fetch all bottles from all users with user info
    const { data: bottlesRaw, error } = await supabase
        .from('bottles')
        .select(`
            id,
            name,
            distillery,
            image_url,
            abv,
            age,
            category,
            status,
            created_at,
            user_id,
            tastings (
                id,
                rating
            )
        `)
        .order('created_at', { ascending: false })
        .limit(500);

    // Get unique user IDs
    const userIds = Array.from(new Set(bottlesRaw?.map(b => b.user_id) || []));

    // Fetch profiles for these users
    const { data: profiles } = userIds.length > 0
        ? await supabase.from('profiles').select('id, username, display_name').in('id', userIds)
        : { data: [] };

    // Combine bottles with user info
    const bottles = bottlesRaw?.map(bottle => ({
        ...bottle,
        user: profiles?.find(p => p.id === bottle.user_id) || { username: 'Unknown', display_name: null }
    })) || [];

    // Calculate stats
    const stats = {
        totalBottles: bottles.length,
        totalUsers: userIds.length,
        avgRating: bottles.reduce((sum, b) => {
            const ratings = b.tastings?.map((t: any) => t.rating).filter((r: number) => r > 0) || [];
            const avg = ratings.length > 0 ? ratings.reduce((a: number, b: number) => a + b, 0) / ratings.length : 0;
            return sum + avg;
        }, 0) / bottles.filter(b => b.tastings && b.tastings.length > 0).length || 0,
        topDistilleries: Object.entries(
            bottles.reduce((acc: Record<string, number>, b) => {
                const d = b.distillery || 'Unknown';
                acc[d] = (acc[d] || 0) + 1;
                return acc;
            }, {})
        ).sort((a, b) => b[1] - a[1]).slice(0, 5),
    };

    return (
        <main className="min-h-screen bg-zinc-950 p-6 pb-24">
            <div className="max-w-7xl mx-auto">
                {/* Header */}
                <div className="flex items-center gap-4 mb-8">
                    <Link
                        href="/admin"
                        className="p-2 rounded-xl bg-zinc-900 border border-zinc-800 text-zinc-400 hover:text-white hover:border-zinc-700 transition-colors"
                    >
                        <ArrowLeft size={20} />
                    </Link>
                    <div className="flex-1">
                        <h1 className="text-2xl font-bold text-white">All Bottles</h1>
                        <p className="text-sm text-zinc-500">
                            View all scanned bottles from all users
                        </p>
                    </div>
                </div>

                {error && (
                    <div className="mb-6 p-4 bg-red-500/20 border border-red-500/50 rounded-xl text-red-400 text-sm">
                        Error loading bottles: {error.message}
                    </div>
                )}

                {/* Stats Cards */}
                <div className="grid grid-cols-2 md:grid-cols-4 gap-4 mb-8">
                    <div className="bg-zinc-900 rounded-2xl p-4 border border-zinc-800">
                        <div className="flex items-center gap-2 mb-2">
                            <Wine size={18} className="text-orange-500" />
                            <span className="text-xs font-bold text-zinc-500 uppercase">Total Bottles</span>
                        </div>
                        <div className="text-2xl font-black text-white">{stats.totalBottles}</div>
                    </div>
                    <div className="bg-zinc-900 rounded-2xl p-4 border border-zinc-800">
                        <div className="flex items-center gap-2 mb-2">
                            <User size={18} className="text-blue-500" />
                            <span className="text-xs font-bold text-zinc-500 uppercase">Total Users</span>
                        </div>
                        <div className="text-2xl font-black text-white">{stats.totalUsers}</div>
                    </div>
                    <div className="bg-zinc-900 rounded-2xl p-4 border border-zinc-800">
                        <div className="flex items-center gap-2 mb-2">
                            <Star size={18} className="text-yellow-500" />
                            <span className="text-xs font-bold text-zinc-500 uppercase">Avg Rating</span>
                        </div>
                        <div className="text-2xl font-black text-white">
                            {stats.avgRating > 0 ? stats.avgRating.toFixed(1) : 'N/A'}
                        </div>
                    </div>
                    <div className="bg-zinc-900 rounded-2xl p-4 border border-zinc-800">
                        <div className="flex items-center gap-2 mb-2">
                            <Calendar size={18} className="text-green-500" />
                            <span className="text-xs font-bold text-zinc-500 uppercase">Top Distillery</span>
                        </div>
                        <div className="text-lg font-black text-white truncate">
                            {stats.topDistilleries[0]?.[0] || 'N/A'}
                        </div>
                        {stats.topDistilleries[0] && (
                            <div className="text-xs text-zinc-500">{stats.topDistilleries[0][1]} bottles</div>
                        )}
                    </div>
                </div>

                {/* Top Distilleries */}
                <div className="bg-zinc-900 rounded-2xl p-4 border border-zinc-800 mb-8">
                    <h3 className="text-sm font-bold text-zinc-400 uppercase mb-3">Top 5 Distilleries</h3>
                    <div className="flex flex-wrap gap-2">
                        {stats.topDistilleries.map(([name, count]) => (
                            <span
                                key={name}
                                className="px-3 py-1.5 bg-zinc-800 rounded-lg text-sm text-zinc-300"
                            >
                                {name} <span className="text-orange-500 font-bold">({count})</span>
                            </span>
                        ))}
                    </div>
                </div>

                {/* Bottles List - Client Component for search/filter */}
                <AdminBottlesList bottles={bottles} />
            </div>
        </main>
    );
}