<?php

namespace app\admin\service;

use app\common\model\store_product\StoreProduct;
use app\common\model\StoreProductPriceList;

class ProductPriceService
{

    /**
     * 设置商品价格
     * @param $purchasePrice float 采购价
     * @param $productPriceRate array 价格比例
     * @return array
     */
    public function setProductPrice(float $purchasePrice, array $productPriceRate)
    {
        $result = [];
        $result['purchase_lv'] = bcdiv($productPriceRate['supply_rate'], 100, 2);
        $result['purchase'] = bcmul($purchasePrice, $result['purchase_lv'], 2);
        $result['cost_lv'] = bcdiv($productPriceRate['merchant_rate'], 100, 2);
        $result['cost'] = bcmul($result['purchase'], $result['cost_lv'], 2);
        $result['vip_lv'] = bcdiv($productPriceRate['vip_rate'], 100, 2);
        $result['vip_price'] = bcmul($result['purchase'], $result['vip_lv'], 2);
        $result['price_lv'] = bcdiv($productPriceRate['price_rate'], 100, 2);
        $result['price'] = bcmul($result['purchase'], $result['price_lv'], 2);
        // 暂时不处理零售价，零售价使用会员价
//        $lastNum = substr($result['price'], -1);
//        if ($lastNum > 0) {
//            $result['price'] = ceil($result['price'] * 10);
//            $result['price'] = bcdiv($result['price'], 10, 2);
//        }
        $lastNum = substr($result['vip_price'], -1);
        if ($lastNum > 0) {
            $result['vip_price'] = ceil($result['vip_price'] * 10);
            $result['vip_price'] = bcdiv($result['vip_price'], 10, 2);
        }
        return $result;
    }

    /**
     * @param $productId int 商品id
     * @param $percent bool 是否返回百分比
     * @return array|int[]
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function getProductPriceRate($productId, $percent = false)
    {
        $list = StoreProductPriceList::where('product_id', $productId)->findOrEmpty()->toArray();
        $product = StoreProduct::where('id', $productId)->field('id,store_name,top_cate_id,cate_id')->find();
        if (empty($list)) {
            if ($product->isSpecial()) {
                $list = [
                    'supply_rate' => 102,
                    'merchant_rate' => 102,
                    'vip_rate' => 104,
                    'price_rate' => 108,
                ];
            } else {
                $list = [
                    'supply_rate' => 105,
                    'merchant_rate' => 105,
                    'vip_rate' => 108,
                    'price_rate' => 112,
                ];
            }
        }
        if ($percent) {
            $list['supply_rate'] = $list['supply_rate'] / 100;
            $list['merchant_rate'] = $list['merchant_rate'] / 100;
            $list['vip_rate'] = $list['vip_rate'] / 100;
            $list['price_rate'] = $list['price_rate'] / 100;
        }
        return $list;
    }

}