<?php

namespace app\mall\service;

use app\mall\model\MallCart;

class Cart extends Base
{

    /**
     * 获取用户购物车现有有效和无效产品列表
     * @date 2022-08-25
     */
    public function listUserCartEffectiveAndInvalid()
    {
        $cart_model = new MallCart();

        // 获取用户购物车商品
        $cart_list = $cart_model->listUserCart();

        // 购物车有效商品
        $cart_effective = [];
        // 购物车无效商品
        $cart_invalid = [];

        // 拆分有效和无效商品
        foreach ($cart_list as $k => $v) {
            unset($cart_list[$k]['freight_type']);
            unset($cart_list[$k]['freight_id']);
            unset($cart_list[$k]['freight_money']);
            unset($cart_list[$k]['weight']);
            unset($cart_list[$k]['product_is_publish']);
            unset($cart_list[$k]['product_delete_time']);
            if ($v['is_effective'] == 1) {
                $cart_effective[] = $v;
            } else {
                $cart_invalid[] = $v;
            }
        }

        return [$cart_effective, $cart_invalid];
    }

    /**
     * 判断购物车失效商品并修改状态
     * @date 2022-08-25
     */
    public function updateInvalid()
    {
        $cart_model = new MallCart();

        $cart = $cart_model->getAllCart([
            ['user_id', '=', $this->userId]
        ], 'id,product_id,is_product_spec_open,product_sku,number,is_select');

        if (count($cart)) {
            foreach ($cart as $k => $v) {
                // 1--有效 0--失效
                $is_effective = 1;
                // 原产品删除或下架
                if (empty($v['product_name']) || !empty($v['product_delete_time']) || $v['product_is_publish'] == 0) {
                    $is_effective = 0;
                }
                // SKU更改
                if ($v['is_product_spec_open'] == 1 && empty($v['product_sku_name'])) {
                    $is_effective = 0;
                }
                // 库存不足
                if ($v['product_stock'] <= 0) {
                    $is_effective = 0;
                }
                $data[] = [
                    'id' => $v['id'],
                    'is_effective' => $is_effective
                ];
            }

            return $cart_model->saveAll($data);
        }

        return true;

    }

}