<?php

namespace Code\Lib;

use Dever;

class Core
{
	public function createCodeByOrder($order)
	{
		$code = '';
        if ($order['type'] == 3 && !$order['code']) {
            # 购买兑换码
            $product_num = 1;
            $code_num = 1;
            if ($order['buy_id'] > 0) {
                $buy = Dever::db('journal/buy_num')->one($order['buy_id']);
                $product_num = $buy['num'];
                $code_num = $buy['code'];
            }
            
            # 检查之前有多少个兑换码，防止多发
            $code_where['order_id'] = $order['order_id'];
        	$total = Dever::db('code/info')->total($code_where);
        	if ($total && $total > 0) {
        		if ($code_num > $total) {
        			$code_num = $code_num - $total;
        		} else {
        			$one = Dever::db('code/info')->one($code_where);
        			return $one['code'];
        		}
        	}

            if ($code_num > 1) {
                $product_num = intval($product_num/$code_num);
                for ($i = 0; $i < $code_num; $i++) {
                    $code = $this->createCode($order['cate_id'] . ',' . $order['product_id'], $order['cate_id'], $order['product_id'], $order['seller_id'], $product_num, $order['uid'], $order['order_id']);
                }
            } else {
                $code = $this->createCode($order['cate_id'] . ',' . $order['product_id'], $order['cate_id'], $order['product_id'], $order['seller_id'], $product_num, $order['uid'], $order['order_id']);
            }
        }

        return $code;
	}

	public function createCode($product, $cate_id, $product_id, $seller_id, $product_num = 0, $create_uid = -1, $order_id = false, $score = 0)
	{
		$code = Dever::rand(8, 0);
		$data['code'] = $code;
		$total = Dever::db('code/info')->total($data);
		if ($total > 0) {
			return $this->createCode($product, $cate_id, $product_id, $seller_id, $product_num, $create_uid, $order_id, $score);
		}
		
		//$data['product'] = $product;
		$data['cate_id'] = $cate_id;
		$data['product_id'] = $product_id;
		$data['seller_id'] = $seller_id;
		$data['product_num'] = $product_num;
		
		$data['type'] = 1;
		if ($order_id) {
			$data['order_id'] = $order_id;
		}
		if ($create_uid > 0) {
			$data['create_uid'] = $create_uid;
		}
		$data['score'] = $score;
		Dever::db('code/info')->insert($data);
		return $code;
	}
}