<?php

namespace api\logic;

use antgoods\goods\models\ars\Goods;
use antgoods\goods\models\ars\GoodsAttr;
use antgoods\goods\models\ars\GoodsSku;
use yii\di\Instance;
use yii\helpers\Url;
use yii\web\BadRequestHttpException;
use yii\web\NotFoundHttpException;
use Yii;

/**
 * @author iron
 * @email weiriron@gmail.com
 * Class Helper
 * @package api\logic
 */
class Helper
{
    const REQUEST_BAD_PARAMS = '参数缺失或包含无效参数';

    /**
     * @param $array
     * @return string
     */
    public static function errorMessageStr($array): string
    {
        $data = [];
        foreach ($array as $k => $v) {
            $data[] = implode(' ', $v);
        }
        return implode(' ', $data);
    }

    /**
     * @param $goodsId
     * @param $count
     * @param null $skuId
     * @throws BadRequestHttpException
     * @throws NotFoundHttpException
     *  判断库存
     */
    public static function checkStock($goodsId, $count, $skuId = null)
    {
        $sku = GoodsSku::findOne($skuId);
        $goods = Goods::findOne($goodsId);
        if (!$goods) {
            throw new NotFoundHttpException('商品未找到');
        }
        if (!$sku && $goods->stock == Goods::UNLIMITED_STOCK) {
            return;
        }
        $stock = $sku ? $sku->stock : $goods->stock;
        if ($stock < $count) {
            throw new BadRequestHttpException("商品{$goods->name}库存不足");
        }
        return;
    }

    public static function createdResponse($model, $view)
    {
        $response = Yii::$app->getResponse()->setStatusCode(201);
        $id = implode(',', array_values($model->getPrimaryKey(true)));
        $response->getHeaders()->set('Location', Url::toRoute([$view, 'id' => $id], true));
    }

    /**
     * @param $goodsId
     * @param $skuId
     * @return int
     * @throws NotFoundHttpException
     * 计算商品价格
     */
    public static function countPrice($goodsId, $skuId)
    {
        $goods = Goods::findOne($goodsId);
        if (!$goods) {
            throw new NotFoundHttpException('商品未找到');
        }
        $price = $goods->price;
        $sku = GoodsSku::findOne($skuId);
        if ($sku) {
            $price = $sku->price;
        }
        return $price;
    }

    /**
     * @param $skuId
     * @return string
     * @throws NotFoundHttpException
     */
    public static function skuValue($skuId)
    {
        $sku = GoodsSku::findOne($skuId);
        if (!$sku) {
            return '';
        }
        $data = [];
        $goodsAttr = array_filter(explode(',', $sku->goods_attr));
        if (empty($goodsAttr)) {
            throw new NotFoundHttpException('sku无对应商品属性');
        }
        foreach ($goodsAttr as $k => $v) {
            $attr = GoodsAttr::findOne($v);
            if (!$attr) {
                throw new NotFoundHttpException('商品属性未找到');
            }
            $data[] = $attr->attr_value;
        }
        return implode(',', $data);

    }
}