<?php

namespace Modules\Merchant\Http\Controllers\Portal;

use Illuminate\Support\Facades\Auth;
use Modules\Merchant\Models\MerchantStoreModel;

trait MerchantAuthTrait
{
    protected ?int $_merchantId = null;

    /**
     * 获取当前登录商户的 ID
     * 通过 sys_user.id -> merchants.user_id 关联获取
     */
    public function getMerchantId(): int
    {
        if ($this->_merchantId === null) {
            $userId = Auth::id();
            $merchant = MerchantStoreModel::where('user_id', $userId)->first(['id']);

            if (!$merchant) {
                $this->throwError('商户信息不存在，请联系管理员');
            }

            $this->_merchantId = $merchant->id;
        }

        return $this->_merchantId;
    }

    /**
     * 获取当前登录商户的完整模型
     */
    public function getMerchant(): MerchantStoreModel
    {
        $userId = Auth::id();
        $merchant = MerchantStoreModel::where('user_id', $userId)->first();

        if (!$merchant) {
            $this->throwError('商户信息不存在，请联系管理员');
        }

        return $merchant;
    }
}