package cms

import (
	"errors"
	"fmt"
	"reflect"

	"git.rosy.net.cn/baseapi/utils"
	"git.rosy.net.cn/jx-callback/business/jxutils"
	"git.rosy.net.cn/jx-callback/business/jxutils/tasksch"
	"git.rosy.net.cn/jx-callback/business/model"
	"git.rosy.net.cn/jx-callback/business/model/dao"
	"git.rosy.net.cn/jx-callback/business/partner"
	"git.rosy.net.cn/jx-callback/globals"
	"git.rosy.net.cn/jx-callback/globals/api"
)

type VendorSync struct {
	MultiStoreVendorIDs  []int
	SingleStoreVendorIDs []int
	PurchaseHandlers     map[int]partner.IPurchasePlatformHandler
}

type SyncError struct {
	Original error  `json:"original"`
	Message  string `json:"message"`
}

// 对于多门店平台接口的通用处理
type MultiStoreHandlerWrapper struct {
	partner.IMultipleStoresHandler
}

// 对于单门店平台接口的通用处理
type SingleStoreHandlerWrapper struct {
	partner.ISingleStoreHandler
}

var (
	CurVendorSync VendorSync
)

var (
	ErrHaveNotImplementedYet = errors.New("还没有实现")
	ErrEntityNotExist        = errors.New("找不到相应实体")
)

func Init() {
	apiMap := map[int]interface{}{
		model.VendorIDJD:   api.JdAPI,
		model.VendorIDELM:  api.ElmAPI,
		model.VendorIDEBAI: api.EbaiAPI,
	}
	CurVendorSync.PurchaseHandlers = make(map[int]partner.IPurchasePlatformHandler)
	for k, v := range partner.PurchasePlatformHandlers {
		if !reflect.ValueOf(apiMap[k]).IsNil() {
			if multiHandler, ok := v.(partner.IMultipleStoresHandler); ok {
				CurVendorSync.MultiStoreVendorIDs = append(CurVendorSync.MultiStoreVendorIDs, k)
				CurVendorSync.PurchaseHandlers[k] = &MultiStoreHandlerWrapper{
					IMultipleStoresHandler: multiHandler,
				}
			} else if singleHandler, ok := v.(partner.ISingleStoreHandler); ok {
				CurVendorSync.SingleStoreVendorIDs = append(CurVendorSync.SingleStoreVendorIDs, k)
				CurVendorSync.PurchaseHandlers[k] = &SingleStoreHandlerWrapper{
					ISingleStoreHandler: singleHandler,
				}
			} else {
				panic(fmt.Sprintf("platform:%d type is wrong!", k))
			}
		}
	}
}

func (p *MultiStoreHandlerWrapper) DeleteCategory(db *dao.DaoDB, cat *model.SkuCategory, userName string) (err error) {
	if jxutils.IsFakeID(cat.JdID) {
		return nil
	}
	return p.IMultipleStoresHandler.DeleteCategory(db, cat, userName)
}

func (p *MultiStoreHandlerWrapper) UpdateCategory(db *dao.DaoDB, cat *model.SkuCategory, userName string) (err error) {
	if jxutils.IsFakeID(cat.JdID) {
		globals.SugarLogger.Warnf("UpdateCategory fakeid cat:%s should not get here", utils.Format4Output(cat, true))
		return nil
	}
	return p.IMultipleStoresHandler.UpdateCategory(db, cat, userName)
}

func (p *MultiStoreHandlerWrapper) DeleteSku(db *dao.DaoDB, sku *model.Sku, userName string) (err error) {
	if jxutils.IsFakeID(sku.JdID) {
		return nil
	}
	return p.IMultipleStoresHandler.DeleteSku(db, sku, userName)
}

func (p *MultiStoreHandlerWrapper) UpdateSku(db *dao.DaoDB, sku *model.Sku, userName string) (err error) {
	if jxutils.IsFakeID(sku.JdID) {
		globals.SugarLogger.Warnf("UpdateSku fakeid sku:%s should not get here", utils.Format4Output(sku, true))
		return nil
	}
	return p.IMultipleStoresHandler.UpdateSku(db, sku, userName)
}

func (v *VendorSync) GetStoreHandler(vendorID int) partner.IPurchasePlatformHandler {
	return v.PurchaseHandlers[vendorID]
}

func (v *VendorSync) GetMultiStoreHandler(vendorID int) partner.IMultipleStoresHandler {
	if v.PurchaseHandlers[vendorID] != nil {
		return v.PurchaseHandlers[vendorID].(partner.IMultipleStoresHandler)
	}
	return nil
}

func (v *VendorSync) GetSingleStoreHandler(vendorID int) partner.ISingleStoreHandler {
	if v.PurchaseHandlers[vendorID] != nil {
		return v.PurchaseHandlers[vendorID].(partner.ISingleStoreHandler)
	}
	return nil
}

func (v *VendorSync) syncCategories(multiStoresHandler partner.IMultipleStoresHandler, db *dao.DaoDB, cats []*model.SkuCategory, userName string) (err error) {
	syncStatusFieldName := multiStoresHandler.GetFieldSyncStatusName()
	task := tasksch.RunTask("syncCategories", false, nil, len(cats), 1, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
		cat := batchItemList[0].(*model.SkuCategory)
		updateFields := []string{syncStatusFieldName}
		syncStatus := jxutils.GetObjFieldByName(cat, syncStatusFieldName).(int8)
		if (syncStatus & model.SyncFlagDeletedMask) != 0 { //删除
			err = multiStoresHandler.DeleteCategory(db, cat, userName)
		} else if (syncStatus & model.SyncFlagNewMask) != 0 { // 新增
			err = multiStoresHandler.CreateCategory(db, cat, userName)
			updateFields = append(updateFields, multiStoresHandler.GetFieldIDName())
		} else if (syncStatus & model.SyncFlagModifiedMask) != 0 { // 修改
			err = multiStoresHandler.UpdateCategory(db, cat, userName)
		}
		if err == nil {
			jxutils.SetObjFieldByName(cat, syncStatusFieldName, int8(0))
			_, err = dao.UpdateEntity(db, cat, updateFields...)
		}
		return nil, err
	}, cats)
	_, err = task.GetResult(0)
	return err
}

func (v *VendorSync) SyncCategory(db *dao.DaoDB, categoryID int, isAsync bool, userName string) (hint string, err error) {
	globals.SugarLogger.Debug(v.MultiStoreVendorIDs)
	hint, err = v.LoopMultiStoresVendors(db, "SyncCategory", isAsync, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
		multiStoresHandler := v.GetMultiStoreHandler(batchItemList[0].(int))
		var cats []*model.SkuCategory
		cond := make(map[string]interface{})
		if categoryID > 0 {
			cond[model.FieldID] = categoryID
		} else {
			cond[model.FieldLevel] = 1
		}
		err := dao.GetEntitiesByKV(db, &cats, cond, true)
		if err == nil {
			err = v.syncCategories(multiStoresHandler, db, cats, userName)
		}
		if err != nil || categoryID > 0 {
			return nil, err
		}
		cond[model.FieldLevel] = 2
		err = dao.GetEntitiesByKV(db, &cats, cond, true)
		if err == nil {
			err = v.syncCategories(multiStoresHandler, db, cats, userName)
		}
		return nil, err
	})
	return "", err
}

func (v *VendorSync) SyncReorderCategories(db *dao.DaoDB, categoryID int, isAsync bool, userName string) (hint string, err error) {
	hint, err = v.LoopMultiStoresVendors(db, "SyncReorderCategories", isAsync, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
		multiStoresHandler := v.GetMultiStoreHandler(batchItemList[0].(int))
		err2 := multiStoresHandler.ReorderCategories(db, categoryID, userName)
		if err2 == nil {
			cat := &model.SkuCategory{}
			_, err2 = dao.UpdateEntityByKV(db, cat, utils.Params2Map(multiStoresHandler.GetFieldSyncStatusName(), 0), utils.Params2Map(model.FieldParentID, categoryID))
			return nil, err2
		}
		return nil, err2
	})
	return "", err
}

func (v *VendorSync) SyncStore(db *dao.DaoDB, vendorID, storeID int, isAsync bool, userName string) (hint string, err error) {
	globals.SugarLogger.Debugf("SyncStore, storeID:%d", storeID)
	hint, err = v.LoopStoreMap(db, "SyncStore", isAsync, userName, storeID, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
		storeMap := batchItemList[0].(*model.StoreMap)
		if (vendorID == -1 || vendorID == storeMap.VendorID) && (storeMap.SyncStatus != 0) {
			if handler := v.GetStoreHandler(storeMap.VendorID); handler != nil {
				if err = handler.UpdateStore(db, storeID, userName); err == nil {
					storeMap.SyncStatus = 0
					_, err = dao.UpdateEntity(db, storeMap, model.FieldSyncStatus)
				}
			}
		}
		return nil, err
	})
	return "", err
}

func (v *VendorSync) SyncSku(db *dao.DaoDB, nameID, skuID int, isAsync bool, userName string) (hint string, err error) {
	globals.SugarLogger.Debugf("SyncSku, nameID:%d, skuID:%d, userName:%s", nameID, skuID, userName)
	hint, err = v.LoopMultiStoresVendors(db, "SyncSku", isAsync, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
		multiStoresHandler := v.GetMultiStoreHandler(batchItemList[0].(int))
		syncStatusFieldName := multiStoresHandler.GetFieldSyncStatusName()
		var skuList []*model.Sku
		cond := make(map[string]interface{})
		if nameID != -1 {
			cond[model.FieldNameID] = nameID
		}
		if skuID != -1 {
			cond[model.FieldID] = skuID
		}
		err := dao.GetEntitiesByKV(db, &skuList, cond, true)
		if err == nil {
			// globals.SugarLogger.Debug(utils.Format4Output(skuList, false))
			task := tasksch.RunTask("SyncSku", false, nil, len(skuList), 1, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
				sku := batchItemList[0].(*model.Sku)
				syncStatus := jxutils.GetObjFieldByName(sku, syncStatusFieldName).(int8)
				if (skuID == -1 || skuID == sku.ID) && (syncStatus != 0) {
					updateFields := []string{syncStatusFieldName}
					if syncStatus&model.SyncFlagDeletedMask != 0 { // 删除
						err = multiStoresHandler.DeleteSku(db, sku, userName)
					} else if syncStatus&model.SyncFlagNewMask != 0 { // 新增
						err = multiStoresHandler.CreateSku(db, sku, userName)
						updateFields = append(updateFields, multiStoresHandler.GetFieldIDName())
					} else if syncStatus&model.SyncFlagModifiedMask != 0 { // 修改
						err = multiStoresHandler.UpdateSku(db, sku, userName)
					}
					if err == nil {
						jxutils.SetObjFieldByName(sku, syncStatusFieldName, int8(0))
						dao.UpdateEntity(db, sku, updateFields...)
					}
				}
				return nil, err
			}, skuList)
			_, err = task.GetResult(0)
		}
		return nil, err
	})
	return "", err
}

//
func (v *VendorSync) SyncStoresSkus(db *dao.DaoDB, vendorIDs []int, storeIDs []int, skuIDs []int, isAsync bool, userName string) (hint string, err error) {
	globals.SugarLogger.Debug("SyncStoresSkus")
	hint, err = v.LoopStoreVendors(db, vendorIDs, "SyncStoresSkus", isAsync, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
		handler := v.GetStoreHandler(batchItemList[0].(int))
		_, err = handler.SyncStoresSkus(db, storeIDs, skuIDs, false, userName)
		return nil, err
	})
	return hint, err
}

func (v *VendorSync) LoopStoreMap(db *dao.DaoDB, taskName string, isAsync bool, userName string, storeID int, handler tasksch.WorkFunc) (hint string, err error) {
	storeMaps, err := GetStoreVendorMaps(db, storeID, -1)
	if err == nil {
		task := tasksch.RunManagedTask(taskName, false, nil, len(storeMaps), 1, userName, handler, storeMaps)
		hint = task.ID
		if !isAsync {
			_, err = task.GetResult(0)
		}
	}
	return "", makeSyncError(err)
}

func (v *VendorSync) LoopMultiStoresVendors(db *dao.DaoDB, taskName string, isAsync bool, userName string, handler tasksch.WorkFunc) (hint string, err error) {
	if taskName == "" {
		taskName = "LoopMultiStoresVendors"
	}
	task := tasksch.RunManagedTask(taskName, false, nil, len(v.MultiStoreVendorIDs), 1, userName, handler, v.MultiStoreVendorIDs)
	hint = task.ID
	if !isAsync {
		_, err = task.GetResult(0)
	}
	return "", makeSyncError(err)
}

func (v *VendorSync) LoopStoreVendors(db *dao.DaoDB, vendorIDs []int, taskName string, isAsync bool, userName string, handler tasksch.WorkFunc) (hint string, err error) {
	if taskName == "" {
		taskName = "LoopStoreVendors"
	}
	var vendorIDMap map[int]int
	if len(vendorIDs) != 0 {
		vendorIDMap = make(map[int]int)
		for _, v := range vendorIDs {
			vendorIDMap[v] = 1
		}
	}
	allHandlers := make([]int, len(v.MultiStoreVendorIDs)+len(v.SingleStoreVendorIDs))
	copy(allHandlers, v.MultiStoreVendorIDs)
	copy(allHandlers[len(v.MultiStoreVendorIDs):], v.SingleStoreVendorIDs)
	if vendorIDMap != nil {
		count := 0
		for _, v := range allHandlers {
			if vendorIDMap[v] == 1 {
				allHandlers[count] = v
				count++
			}
		}
		allHandlers = allHandlers[:count]
	}
	task := tasksch.RunManagedTask(taskName, false, nil, len(allHandlers), 1, userName, handler, allHandlers)
	if isAsync {
		return task.ID, nil
	}
	_, err = task.GetResult(0)
	return "", makeSyncError(err)
}

func (v *VendorSync) LoopSingleStoreVendors(db *dao.DaoDB, taskName string, isAsync bool, userName string, handler tasksch.WorkFunc) (hint string, err error) {
	if taskName == "" {
		taskName = "LoopSingleStoreVendors"
	}
	var storeMaps []*model.StoreMap
	if err = dao.GetRows(db, &storeMaps, `
	SELECT *
	FROM store_map
	WHERE vendor_id IN (`+dao.GenQuestionMarks(len(v.SingleStoreVendorIDs))+")", v.SingleStoreVendorIDs); err == nil {
		parellelCount := len(storeMaps)
		if parellelCount > 20 {
			parellelCount = 20
		}
		task := tasksch.RunManagedTask(taskName, false, nil, parellelCount, 1, userName, handler, storeMaps)
		hint = task.ID
		if !isAsync {
			_, err = task.GetResult(0)
		}
	}
	return "", makeSyncError(err)
}

func (v *VendorSync) RefreshSkuIDs(nameID, skuID int, userName string) (err error) {
	sql := `
	SELECT t1.id
	FROM sku t1
	JOIN sku_name t2 ON t1.name_id = t2.id
	WHERE 1 = 1
	`
	sqlParams := []interface{}{}
	if nameID != -1 {
		sql += " AND t1.name_id = ?"
		sqlParams = append(sqlParams, nameID)
	}
	if skuID != -1 {
		sql += " AND t1.id = ?"
		sqlParams = append(sqlParams, skuID)
	}

	var ids []int
	db := dao.GetDB()
	if err = dao.GetRows(db, &ids, sql, sqlParams); err == nil {
		// globals.SugarLogger.Debug(utils.Format4Output(ids, false))
		_, err = v.LoopMultiStoresVendors(db, "RefreshSkuIDs", false, userName, func(batchItemList []interface{}, params ...interface{}) (interface{}, error) {
			multiStoresHandler := v.GetMultiStoreHandler(batchItemList[0].(int))
			err := multiStoresHandler.SyncSkusIDMap(db, ids, userName)
			globals.SugarLogger.Debug(err)
			return nil, err
		})
	}
	return err
}

func makeSyncError(err error) (newErr error) {
	if err != nil {
		return &SyncError{
			Original: err,
		}
	}
	return err
}

func (e *SyncError) Error() string {
	return fmt.Sprintf("本地数据修改成功，但同步失败，请根据错误提示处理！，同步错误信息：%s", e.Original.Error())
}