package mtwmapi

import (
	"strings"

	"git.rosy.net.cn/baseapi/utils"
)

type RetailCategoryInfo struct {
	Name     string                `json:"name"`
	Sequence int                   `json:"sequence"`
	Level    int                   `json:"level"`
	Children []*RetailCategoryInfo `json:"children"`
}

// 美团分类没有ID，就以名字为唯一标识，不论级别都必须不能重名
// name（和originName）的长度不能超过10个字符（字符，不是字节）
// 首次创建分类时，如果secondaryName不为空，会把一级（如果不存在）及二级分类创建起来，
// 如果一级分类已经存在时，要创建二级分类，则要求originName与name都不为空，且值是一样的
// 大概逻辑是：
// 如果originName不存在，则是创建一级分类，如果secondaryName相应还要创建二级分类，此时的sequence指的是二级的，一级的sequence就没有指定了
// 如果originName存在，则指的是更新，一级分类就必须存在，如果不想改名，将name填成与originName一样的即可
// todo 但这个函数好像就无法实现变更二级分类的名字及sequence
func (a *API) RetailCatUpdate(poiCode, originName, name, secondaryName string, sequence int) (err error) {
	params := map[string]interface{}{
		KeyAppPoiCode:   poiCode,
		"category_name": name,
		"sequence":      sequence,
	}
	if originName != "" {
		params["category_name_origin"] = originName
	}
	if secondaryName != "" {
		params["secondary_category_name"] = secondaryName
	}
	_, err = a.AccessAPI("retailCat/update", false, params)
	return err
}

func (a *API) RetailCatDelete(poiCode, name string) (err error) {
	_, err = a.AccessAPI("retailCat/delete", false, map[string]interface{}{
		KeyAppPoiCode:   poiCode,
		"category_name": name,
	})
	return err
}

func (a *API) RetailCatList(poiCode string) (retailCatList []*RetailCategoryInfo, err error) {
	result, err := a.AccessAPI("retailCat/list", true, map[string]interface{}{
		KeyAppPoiCode: poiCode,
	})
	if err == nil {
		return interface2CatList(result, 1, nil), nil
	}
	return nil, err
}

func (a *API) RetailInitData(poiCode, foodCode string, params map[string]interface{}) (err error) {
	_, err = a.AccessAPI("retail/initdata", false, utils.MergeMaps(map[string]interface{}{
		KeyAppPoiCode:  poiCode,
		KeyAppFoodCode: foodCode,
	}, params))
	return err
}

// offset 从0开始，limit最大不能超过200
func (a *API) RetailList(poiCode string, offset, limit int) (foodList []map[string]interface{}, err error) {
	result, err := a.AccessAPI("retail/list", true, map[string]interface{}{
		KeyAppPoiCode: poiCode,
		"offset":      offset,
		"limit":       limit,
	})
	if err == nil {
		return utils.Slice2MapSlice(result.([]interface{})), nil
	}
	return nil, err
}

func (a *API) RetailBatchInitData(poiCode string, foodData map[string]interface{}) (err error) {
	_, err = a.AccessAPI("retail/batchinitdata", false, map[string]interface{}{
		KeyAppPoiCode: poiCode,
		"food_data":   string(utils.MustMarshal(foodData)),
	})
	return err
}

func (a *API) RetailSkuPrice(poiCode string, foodData []map[string]interface{}) (err error) {
	_, err = a.AccessAPI("retail/sku/price", false, map[string]interface{}{
		KeyAppPoiCode: poiCode,
		"food_data":   foodData,
	})
	return err
}

func (a *API) RetailSkuStock(poiCode string, foodData []map[string]interface{}) (err error) {
	_, err = a.AccessAPI("retail/sku/stock", false, map[string]interface{}{
		KeyAppPoiCode: poiCode,
		"food_data":   foodData,
	})
	return err
}

func (a *API) RetailGet(poiCode, foodCode string) (food map[string]interface{}, err error) {
	result, err := a.AccessAPI("retail/get", true, map[string]interface{}{
		KeyAppPoiCode:  poiCode,
		KeyAppFoodCode: foodCode,
	})
	if err == nil {
		return result.(map[string]interface{}), nil
	}
	return nil, err
}

func (a *API) RetailSkuSave(poiCode, foodCode string, standardSkus, unstandardSkus []map[string]interface{}) (err error) {
	_, err = a.AccessAPI("retail/sku/save", false, map[string]interface{}{
		KeyAppPoiCode:     poiCode,
		KeyAppFoodCode:    foodCode,
		"standard_skus":   standardSkus,
		"unstandard_skus": unstandardSkus,
	})
	return err
}

func (a *API) RetailSkuSellStatus(poiCode string, foodData []map[string]interface{}, status int) (err error) {
	_, err = a.AccessAPI("retail/sku/sellStatus", false, map[string]interface{}{
		KeyAppPoiCode: poiCode,
		"food_data":   foodData,
		"status":      status,
	})
	return err
}

func (a *API) RetailDelete(poiCode, foodCode string) (err error) {
	_, err = a.AccessAPI("retail/delete", false, map[string]interface{}{
		KeyAppPoiCode:  poiCode,
		KeyAppFoodCode: foodCode,
	})
	return err
}

func (a *API) RetailSkuDelete(poiCode, foodCode, skuID string) (err error) {
	_, err = a.AccessAPI("retail/sku/delete", false, map[string]interface{}{
		KeyAppPoiCode:  poiCode,
		KeyAppFoodCode: foodCode,
		"sku_id":       skuID,
	})
	return err
}

// 就是厂商商品类别
func (a *API) RetailGetSpTagIds() (tagIds []map[string]interface{}, err error) {
	result, err := a.AccessAPI("retail/getSpTagIds", true, nil)
	if err == nil {
		return utils.Slice2MapSlice(result.([]interface{})), nil
	}
	return nil, err
}

// 此接口将申请授权后方可接入
func (a *API) RetailCatSkuBatchDelete(poiCode string, catNames []string, secondaryCatNames []string, foodCodes []string) (err error) {
	params := map[string]interface{}{
		KeyAppPoiCode: poiCode,
	}
	if len(catNames) > 0 {
		params["category_names"] = strings.Join(catNames, ",")
	}
	if len(secondaryCatNames) > 0 {
		params["secondary_category_names"] = strings.Join(secondaryCatNames, ",")
	}
	if len(foodCodes) > 0 {
		params["app_food_codes"] = strings.Join(foodCodes, ",")
	}
	_, err = a.AccessAPI("retailCat/batchdelete/catandretail", false, params)
	return err
}

//////////////////////
// 私有辅助函数
func interface2Cat(data interface{}, level int) (cat *RetailCategoryInfo) {
	mapData, ok := data.(map[string]interface{})
	if ok {
		cat = &RetailCategoryInfo{
			Name:     utils.Interface2String(mapData["name"]),
			Sequence: int(utils.Interface2Int64WithDefault(mapData["sequence"], 0)),
			Level:    level,
		}
		children := mapData["children"]
		if children != nil {
			cat.Children = interface2CatList(children, level+1, nil)
		}
	}
	return cat
}

func interface2CatList(data interface{}, level int, interface2CatHandler func(data interface{}, level int) (cat *RetailCategoryInfo)) (cats []*RetailCategoryInfo) {
	if interface2CatHandler == nil {
		interface2CatHandler = interface2Cat
	}
	maps, ok := data.([]interface{})
	if ok {
		cats = make([]*RetailCategoryInfo, len(maps))
		for index, v := range maps {
			cats[index] = interface2CatHandler(v, level)
		}
	}
	return cats
}