package cms

import (
	"errors"

	"git.rosy.net.cn/jx-callback/business/jxutils"
	"git.rosy.net.cn/jx-callback/business/model"
	"git.rosy.net.cn/jx-callback/business/model/dao"
)

var (
	ErrInputCatsDoesntMatch = errors.New("输入的类别列表不合法，需要输入一个父ID下的所有子类别")
)

// parentID 为-1表示所有
func GetVendorCategories(vendorID int, parentID int) (cats []*model.SkuVendorCategory, err error) {
	if parentID == -1 {
		return cats, dao.GetRows(nil, &cats, "SELECT * FROM sku_vendor_category WHERE vendor_id = ?", vendorID)
	}
	return cats, dao.GetRows(nil, &cats, "SELECT * FROM sku_vendor_category WHERE vendor_id = ? AND parent_id = ?", vendorID, parentID)
}

func GetSkuMetaInfo() (*model.SkuMetaInfo, error) {
	return &model.SkuMetaInfo{
		Units:     model.UnitNames,
		SpecUnits: model.SpecUnitNames,
	}, nil
}

// parentID 为-1表示所有
func GetCategories(parentID int) (cats []*model.SkuCategory, err error) {
	if parentID == -1 {
		return cats, dao.GetRows(nil, &cats, "SELECT * FROM sku_category")
	}
	return cats, dao.GetRows(nil, &cats, "SELECT * FROM sku_category WHERE parent_id = ?", parentID)
}

func AddCategory(cat *model.SkuCategory, userName string) (outCat *model.SkuCategory, err error) {
	cat.ID = 0
	cat.JdSyncStatus = model.SyncFlagNewMask
	if err = dao.CreateEntity(nil, cat); err == nil {
		outCat = cat
		err = CurVendorSync.SyncCategory(cat.ID, false, userName)
	}
	return outCat, err
}

func UpdateCategory(categoryID int, payload map[string]interface{}, userName string) (num int64, err error) {
	cat := &model.SkuCategory{}
	cat.ID = categoryID
	valid := jxutils.NormalMakeMapByStructObject(payload, cat, userName)
	valid["JdSyncStatus"] = model.SyncFlagModifiedMask
	db := dao.GetDB()
	if num, err = dao.UpdateEntityByKV(db, cat, valid, nil); err == nil {
		err = CurVendorSync.SyncCategory(categoryID, false, userName)
	}
	return num, err
}

func ReorderCategories(parentID int, categoryIDs []int, userName string) (err error) {
	var cats []*model.SkuCategory
	parentCat := &model.SkuCategory{}
	parentCat.ID = parentID
	db := dao.GetDB()
	if err = dao.GetEntity(db, parentCat); err == nil {
		if err = dao.GetRows(db, &cats, "SELECT * FROM sku_category WHERE parent_id = ?", parentID); err == nil {
			catsLen := len(cats)
			if catsLen != len(categoryIDs) {
				return ErrInputCatsDoesntMatch
			}
			catsMap := make(map[int]*model.SkuCategory, catsLen)
			for _, cat := range cats {
				catsMap[cat.ID] = cat
			}
			for k, v := range categoryIDs {
				catsMap[v].Seq = k * 5
				// catsMap[v].JdSyncStatus = model.SyncFlagModifiedMask
				if _, err = dao.UpdateEntity(db, catsMap[v], "Seq"); err != nil {
					break
				}
			}
			if err == nil {
				err = GetPurchaseHandler(model.VendorIDJD).ReorderCategories(parentCat, userName)
			}
		}
	}
	return err
}