<?php

namespace App\Http\Controllers\User;

use App\Http\Controllers\Controller;
use App\Services\UserStatsService;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Str;
use App\Models\ArtworkFavourite;

class FavouritesController extends Controller
{
    public function index(Request $request, $userId = null, $username = null)
    {
        $userId = $userId ? (int) $userId : ($request->user()->id ?? null);

        $page = max(1, (int) $request->query('page', 1));
        $hits = 20;
        $start = ($page - 1) * $hits;

        $total = 0;
        $results = collect();

        try {
            $query = ArtworkFavourite::with(['artwork.user'])
                ->where('user_id', $userId)
                ->orderByDesc('created_at')
                ->orderByDesc('artwork_id');

            $total = (int) $query->count();

            $favorites = $query->skip($start)->take($hits)->get();

            $results = $favorites->map(function ($fav) {
                $art = $fav->artwork;
                if (! $art) {
                    return null;
                }
                $item = (object) $art->toArray();
                $item->uname = $art->user?->username ?? $art->user?->name ?? null;
                $item->datum = $fav->created_at;
                return $item;
            })->filter();
        } catch (\Throwable $e) {
            $total = 0;
            $results = collect();
        }

        $results = collect($results)->filter()->values()->transform(function ($row) {
            $row->name = $row->name ?? $row->title ?? '';
            $row->slug = $row->slug ?? Str::slug($row->name);
            $row->encoded = isset($row->id) ? app(\App\Helpers\Thumb::class)::encodeId((int) $row->id) : null;
            return $row;
        });

        $displayName = $username ?: (DB::table('users')->where('id', $userId)->value('username') ?? '');
        $page_title = $displayName . ' Favourites';

        return view('user.favourites', [
            'results' => $results,
            'page_title' => $page_title,
            'user_id' => $userId,
            'page' => $page,
            'hits' => $hits,
            'total' => $total,
        ]);
    }

    public function destroy(Request $request, $userId, $artworkId)
    {
        $auth = $request->user();
        if (! $auth || $auth->id != (int)$userId) {
            abort(403);
        }

        $creatorId = (int) DB::table('artworks')->where('id', (int) $artworkId)->value('user_id');

        DB::table('artwork_favourites')->where('user_id', (int) $userId)->where('artwork_id', (int) $artworkId)->delete();

        if ($creatorId) {
            app(UserStatsService::class)->decrementFavoritesReceived($creatorId);
        }

        return redirect()->route('legacy.favourites', ['id' => $userId])->with('status', 'Removed from favourites');
    }
}