<?php


namespace app\api\controller;


use app\admin\model\litestore\Litestoregoodsspec;
use app\api\model\GoodsSpec;
use app\api\model\SpecValue;
use app\common\controller\Api;
use think\Db;

/**
 * 购物车
 */
class Cart extends Api
{
    protected $noNeedLogin = [''];
    protected $noNeedRight = ['*'];

    /**
     * @ApiTitle    (加入购物车)
     * @ApiMethod   (POST)
     * @ApiHeaders  (name=token, type=string, required=true, description="请求的Token")
     * @ApiParams   (name="sku_id", type="integer", required=true, description="规格id")
     * @ApiParams   (name="goods_id", type="integer", required=true, description="商品id")
     * @ApiParams   (name="number", type="integer", required=true, description="购买数量")
     * @ApiReturn   ({
    'code':'1',
    'msg':'SUCCESS'
    })
     */
    public function addCart()
    {
        $sku_id   = $this->request->post('sku_id');
        $goods_id = $this->request->post('goods_id');
        $number   = $this->request->post('number');

        if (!is_numeric($sku_id) || !is_numeric($goods_id) || !is_numeric($number)) $this->error('参数不合法');
        $category_id = (new \app\api\model\Goods())->where('goods_id', $goods_id)->value('category_id');
        $where       = [
            'goods_id'    => $goods_id,
            'sku_id'      => $sku_id,
            'user_id'     => $this->auth->id,
            'category_id' => $category_id,
        ];

        $model = new \app\api\model\Cart();
        $cart  = $model->where($where)->find();
        if ($number == 0) {
            if (empty($cart)) {
                $this->error('购物车不存在');
            }
            $model->where('id', $cart['id'])->delete();
        }
        $spec_sku  = new Litestoregoodsspec();
        $spec_info = $spec_sku->where('goods_spec_id', $sku_id)->find();
        if ($cart) {
            if ( $number+ $cart['number'] > $spec_info['stock_num']) {
                $this->error('库存不足');
            }
            $cart->setInc('number', $number);
        } else {
            if ($spec_info['stock_num'] > $number) {
                $this->error('库存不足');
            }
            $data['number'] = $number;
            $model->isUpdate(false)->save($data);
        }
        $this->success('SUCCESS');
    }


    /**
     * @ApiTitle    (删除购物车)
     * @ApiMethod   (POST)
     * @ApiHeaders  (name=token, type=string, required=true, description="请求的Token")
     * @ApiParams   (name="cart_ids", type="integer", required=true, description="购物车id 逗号隔开")
     * @ApiReturn   ({
    'code':'1',
    'msg':'SUCCESS'
    })
     */
    public function delCart()
    {
        $ids = $this->request->post('cart_ids');
        if (!$ids) $this->error('参数不可为空');
        $ids = explode(',', $ids);
        foreach ($ids as $key => $value) {
            if (!is_numeric($value)) $this->error('参数不合法');
        }
        $model = new \app\api\model\Cart();
        $model->whereIn('id', $ids)->delete();
        $this->success('SUCCESS');
    }

    /**
     * @ApiTitle    (增加购物车数量)
     * @ApiMethod   (POST)
     * @ApiHeaders  (name=token, type=string, required=true, description="请求的Token")
     * @ApiParams   (name="id", type="integer", required=true, description="购物车id")
     * @ApiParams   (name="number", type="integer", required=true, description="增加数量")
     * @ApiReturn   ({
    'code':'1',
    'msg':'SUCCESS'
    })
     */
    public function addCartNumber()
    {
        $id     = $this->request->post('id');
        $number = $this->request->post('number');
        if (!is_numeric($id) || !is_numeric($number)) $this->error('参数不合法');

        $model = new \app\api\model\Cart();
        $order = $model->with('sku')->where('id', $id)->find();
        if ($number + $order['number'] > $order['sku']['stock_num']) $this->error('已达到最大库存，请勿重复提交');
        $model->where('id', $id)->setInc('number', $number);
        $this->success('SUCCESS');
    }

    /**
     * @ApiTitle    (减少购物车数量)
     * @ApiMethod   (POST)
     * @ApiHeaders  (name=token, type=string, required=true, description="请求的Token")
     * @ApiParams   (name="id", type="integer", required=true, description="购物车id")
     * @ApiParams   (name="number", type="integer", required=true, description="减少数量")
     * @ApiReturn   ({
    'code':'1',
    'msg':'SUCCESS'
    })
     */
    public function subCartNumber()
    {
        $id     = $this->request->post('id');
        $number = $this->request->post('number');

        if (!is_numeric($id) || !is_numeric($number)) $this->error('参数不合法');

        $model = new \app\api\model\Cart();
        if ($model->where('id', $id)->value('number') == 1) {
            $this->error('购物车数量不可再减少');
        } else {
            $model->where('id', $id)->setDec('number', $number);
        }
        $this->success('SUCCESS');
    }

    /**
     * @ApiTitle    (购物车列表)
     * @ApiMethod   (POST)
     * @ApiHeaders  (name=token, type=string, required=true, description="请求的Token")
     * @ApiReturn   ({
    'code':'1',
    'msg':'SUCCESS'
    'data'
    {
    "id": 1, 购车id
    "user_id": 0,
    "goods_id": 21, 商品id
    "sku_id": 125, 规格id
    "number": 10, 购买数量
    "createtime": null,
    "goods": {
    "goods_id": 21,
    "goods_name": "小米Mix3",
    "image_text": "http://temporaryfood.qiniu.broing.cn123132", 封面图
    "images_text": [
    "https://her-family.oss-cn-qingdao.aliyuncs.com/addons_store_uploads/20181105/ffc4440df18661948b9c2d4dd4ae419b.jpg",
    "https://her-family.oss-cn-qingdao.aliyuncs.com/addons_store_uploads/20181105/83bf8f141969a9e3e607a768407fc7e0.jpg",
    "https://her-family.oss-cn-qingdao.aliyuncs.com/addons_store_uploads/20181105/c5d85254fc17b1a1b0e2254470881e59.jpg"
    ],
    "down_image_text": "http://temporaryfood.qiniu.broing.cn/uploads/20220114/f8bb72e2ce3e70f0a9f54e6c0b4a6c14.png",
    "four_image_text": []
    },
    "sku": {
    "goods_spec_id": 125,
    "goods_price": "100.00", 价格
    "spec_sku_id": "40_54",
    "sku_name": "黑色 1" 规格名
    }
    }
    })
     */
    public function cartList()
    {
        $model = new \app\api\model\Cart();
        $list  = $model
            ->with(['goods', 'sku'])
            ->where('user_id', $this->auth->id)
            ->order('createtime desc')
            ->select();
        foreach ($list as $key => $value) {
            $value->getRelation('goods')->visible(['goods_name', 'goods_id']);
            $value->getRelation('sku')->visible(['goods_spec_id', 'goods_price', 'spec_sku_id']);
        }
        $list = collection($list)->toArray();
        foreach ($list as $k => &$val) {
            $skuids                 = explode('_', $val['sku']['spec_sku_id']);
            $sku                    = Db::name('litestore_spec_value')->where('id', 'in', $skuids)->column('spec_value');
            $skuname                = !empty($sku) ? implode(' ', $sku) : '';
            $val['sku']['sku_name'] = $skuname;
        }
        $this->success('SUCCESS', $list);
    }

    /**
     * @ApiTitle    (价格计算)
     * @ApiSummary ([{goods_id:22 goods_sku_id:106 number:2} {goods_id:23 goods_sku_id:66 number:2}])
     * @ApiMethod   (POST)
     * @ApiHeaders  (name=token, type=string, required=true, description="请求的Token")
     * @ApiParams   (name="data_json", type="string", required=true, description="下单的商品json数据")
     * @ApiParams   (name="goods_id", type="integer", required=false, description="商品id 此值不传 json数组注释用")
     * @ApiParams   (name="goods_sku_id", type="integer", required=false, description="规格id 此值不传 json数组注释用")
     * @ApiParams   (name="number", type="integer", required=false, description="购买数量 此值不传 json数组注释用")
     * @ApiReturn   ({
    'code':'1',
    'msg':'购物车页面价格'
    'data':
    "price": "37574.00" 总价
    })
     */
    public function priceCalculation()
    {
        $json = $this->request->param('data_json');
        if (!$json) $this->error('data_json参数不能为空');
//        $json = '[{"goods_id":22,"goods_sku_id":106,"number":2},{"goods_id":23,"goods_sku_id":66,"number":2}]';
        $json       = str_replace('&quot;', '"', $json);
        $data       = json_decode($json, true);
        $goodsmodel = new \app\api\model\Goods();
        $skumodel   = new GoodsSpec();
        $sum_price  = 0; //总价格
        foreach ($data as $key => $value) {
            if (!is_numeric($value['goods_id']) || !is_numeric($value['goods_sku_id']) || !is_numeric($value['number'])) {
                $this->error('参数不合法');
            }
            $goods = $goodsmodel->where('goods_id', $value['goods_id'])->field('goods_id,goods_name,image,spec_type')->find();
            if (!$goods) $this->error('商品不存在');
            $sku = $skumodel->where('goods_spec_id', $value['goods_sku_id'])
                ->field('goods_spec_id,spec_sku_id,goods_price')->find();
            if (!$sku) $this->error('商品规格不存在');

            $sum_price = bcadd($sum_price, bcmul($sku['goods_price'], $value['number'], 2), 2);
        }
        $this->success('购物车页面价格', ['price' => $sum_price]);
    }
}