<?php

namespace Scm\Lib;

use Dever;

class Price
{
    public function __construct()
    {
        Dever::load('manage/auth.init');
    }

    # 根据单位获取价格
    public function getByUnit($goods_id, $sku_id, $unit_id, $num, $col = 'cost_price', $supplier_id = false)
    {
        $goods_info = Dever::load('scm_product/lib/info')->getBaseInfo($goods_id, $sku_id);
        $result = array();

        if ($goods_info) {
            $where['goods_id'] = $goods_id;
            $where['sku_id'] = $sku_id;

            # 获取供应商供货价
            if ($supplier_id) {
                $where['supplier_id'] = $supplier_id;
                $sku = Dever::db('scm_supplier/goods_sku')->getOne($where);
            }

            $result['unit_id'] = $unit_id;
            $result['base_cash'] = $result['cash'] = isset($sku[$col]) && $sku[$col] ? $sku[$col] : $goods_info[$col];
                
            $unit = Dever::db('scm_product/info_unit')->find(array('info_id' => $goods_info['id'], 'unit_id' => $unit_id));
            if ($unit && $unit['discount'] > 0) {
                $result['cash'] = $result['cash'] * $unit['radio'] * $unit['discount'];
            }
        }

        return $result;
    }
}