<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\WechatUser;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class WechatUserController extends Controller
{
    public function index(Request $request): JsonResponse
    {
        $pageSize = max(1, min(100, (int) $request->input('page_size', 20)));

        $query = WechatUser::query()->orderByDesc('id');

        if ($request->filled('keyword')) {
            $keyword = trim((string) $request->input('keyword'));
            $query->where(function ($q) use ($keyword) {
                $q->where('phone', 'like', "%{$keyword}%")
                    ->orWhere('nickname', 'like', "%{$keyword}%")
                    ->orWhere('real_name', 'like', "%{$keyword}%");
            });
        }

        $user = $request->user();
        if (! $user->isSuperAdmin()) {
            $venueIds = $user->venues()->pluck('venues.id');
            $query->whereExists(function ($sub) use ($venueIds) {
                $sub->selectRaw('1')
                    ->from('reservations')
                    ->whereColumn('reservations.wechat_user_id', 'wechat_users.id')
                    ->whereIn('reservations.venue_id', $venueIds);
            });
        }

        return response()->json($query->paginate($pageSize));
    }
}