'use client';

import { useEffect, useState } from 'react';
import QRCode from 'qrcode';
import { supabase } from '~/lib/supabase';

export default function Dashboard() {
    const [name, setName] = useState('');
    const [glbUrl, setGlbUrl] = useState('');
    const [usdzUrl, setUsdzUrl] = useState('');
    const [assets, setAssets] = useState<any[]>([]);
    const [loading, setLoading] = useState(false);

    const fetchAssets = async () => {
        const { data } = await supabase
            .from('ar_assets')
            .select('*')
            .order('created_at', { ascending: false });

        setAssets(data || []);
    };

    useEffect(() => {
        fetchAssets();
    }, []);

    const createAsset = async () => {
        if (!name || !glbUrl || !usdzUrl) {
            alert('Fill all fields');
            return;
        }

        setLoading(true);

        const { data, error } = await supabase
            .from('ar_assets')
            .insert({
                name,
                glb_url: glbUrl,
                usdz_url: usdzUrl,
            })
            .select()
            .single();

        if (error || !data) {
            alert(error?.message);
            setLoading(false);
            return;
        }

        // const qrUrl = `http://10.20.2.107:5173/ar/${data.id}`;
        const qrUrl = `${window.location.origin}/ar/${data.id}`;

        const qrImage = await QRCode.toDataURL(qrUrl, {
            width: 512,
            margin: 2,
        });

        const qrBlob = await (await fetch(qrImage)).blob();
        const filePath = `${data.id}.png`;

        await supabase.storage.from('qr-codes').upload(filePath, qrBlob, {
            upsert: true,
            contentType: 'image/png',
        });

        const { data: publicUrl } = supabase.storage
            .from('qr-codes')
            .getPublicUrl(filePath);

        await supabase
            .from('ar_assets')
            .update({
                qr_url: qrUrl,
                qr_image_url: publicUrl.publicUrl,
            })
            .eq('id', data.id);

        setName('');
        setGlbUrl('');
        setUsdzUrl('');
        setLoading(false);
        fetchAssets();
    };

    return (
        <div className='min-h-screen bg-gray-50 px-6 py-10'>
            <div className='mx-auto max-w-5xl space-y-10'>
                <div>
                    <h1 className='text-3xl font-bold text-gray-900'>
                        AR Asset Dashboard
                    </h1>
                    <p className='mt-1 text-gray-500'>
                        Manage 3D assets and generate AR QR codes
                    </p>
                </div>

                <div className='rounded-2xl bg-white p-6 shadow-sm'>
                    <h2 className='mb-4 text-lg font-semibold text-gray-800'>
                        Create New Asset
                    </h2>

                    <div className='grid gap-4 md:grid-cols-3 text-black'>
                        <input
                            className='rounded-lg border border-gray-300 px-4 py-2 text-sm focus:border-black focus:outline-none'
                            placeholder='Asset name'
                            value={name}
                            onChange={(e) => setName(e.target.value)}
                        />
                        <input
                            className='rounded-lg border border-gray-300 px-4 py-2 text-sm focus:border-black focus:outline-none'
                            placeholder='GLB URL'
                            value={glbUrl}
                            onChange={(e) => setGlbUrl(e.target.value)}
                        />
                        <input
                            className='rounded-lg border border-gray-300 px-4 py-2 text-sm focus:border-black focus:outline-none'
                            placeholder='USDZ URL'
                            value={usdzUrl}
                            onChange={(e) => setUsdzUrl(e.target.value)}
                        />
                    </div>

                    <button
                        onClick={createAsset}
                        disabled={loading}
                        className='mt-6 inline-flex items-center justify-center rounded-xl bg-black px-6 py-2.5 text-sm font-medium text-white transition hover:bg-gray-800 disabled:cursor-not-allowed disabled:opacity-60'
                    >
                        {loading ? 'Creating…' : 'Create Asset'}
                    </button>
                </div>

                <div>
                    <h2 className='mb-4 text-lg font-semibold text-gray-800'>
                        Generated Assets
                    </h2>

                    {assets.length === 0 ? (
                        <p className='text-sm text-gray-500'>
                            No assets created yet.
                        </p>
                    ) : (
                        <div className='grid grid-cols-1 gap-6 sm:grid-cols-2 md:grid-cols-3'>
                            {assets.map((asset) => (
                                <div
                                    key={asset.id}
                                    className='rounded-2xl bg-white p-5 shadow-sm transition hover:shadow-md'
                                >
                                    <h3 className='mb-3 text-base font-semibold text-gray-900'>
                                        {asset?.name}
                                    </h3>

                                    {asset?.qr_image_url ? (
                                        <img
                                            src={asset?.qr_image_url}
                                            alt={asset?.name}
                                            className='mx-auto w-40 rounded-lg'
                                        />
                                    ) : (
                                        <div className='flex h-40 items-center justify-center rounded-lg bg-gray-100 text-sm text-gray-400'>
                                            No QR
                                        </div>
                                    )}
                                </div>
                            ))}
                        </div>
                    )}
                </div>
            </div>
        </div>
    );
}