package service

import (
	"errors"
	"xps/cache"
	"xps/datamodel"
	"xps/datasource"
	"xps/repositories"
    "xps/viewmodel"
)

type ModelObjectAttrService interface {
	GetList(m map[string]interface{}) ([]viewmodel.ModelObjectAttrInfo, error)
	GetPage(m map[string]interface{}) (*viewmodel.PageResult, error)
	GetById(modelId, objectId, attrId int64) (*viewmodel.ModelObjectAttrInfo, error)
	GetListById(modelId, objectId int64) ([]viewmodel.ModelObjectAttrInfo, error)
	Create(d *datamodel.ModelObjectAttr) error
	Update(d *datamodel.ModelObjectAttr) error
	Delete(m map[string]interface{}) error
	
	CacheModelObjectAttrs(modelId, objectId int64) error
}

type modelObjectAttrService struct {
	repo *repositories.ModelObjectAttrRepo
}

func NewModelObjectAttrService() ModelObjectAttrService {
	return &modelObjectAttrService{
		repo: repositories.NewModelObjectAttrRepo(datasource.InstanceMaster()),
	}
}

func (s *modelObjectAttrService) GetList(m map[string]interface{}) ([]viewmodel.ModelObjectAttrInfo, error) {
	return s.repo.GetList(m)
}

func (s *modelObjectAttrService) GetPage(m map[string]interface{}) (*viewmodel.PageResult, error) {
	return s.repo.GetPage(m)
}

func (s *modelObjectAttrService) GetById(modelId, objectId, attrId int64) (*viewmodel.ModelObjectAttrInfo, error) {
	return s.repo.GetById(modelId, objectId, attrId)
}

func (s *modelObjectAttrService) GetListById(modelId, objectId int64) ([]viewmodel.ModelObjectAttrInfo, error) {
	return s.repo.GetListById(modelId, objectId)
}


func (s *modelObjectAttrService) Create(attr *datamodel.ModelObjectAttr) error {
	attrId := NewID()
	attr.AttrId = attrId
	err := s.repo.Create(attr)
	if err != nil {
		return err
	}
	
	modelId  := attr.ModelId
	objectId := attr.ObjectId
	return s.CacheModelObjectAttrs(modelId, objectId)
}

func (s *modelObjectAttrService) Update(attr *datamodel.ModelObjectAttr) error {
	err := s.repo.Update(attr)
	if err != nil {
		return err
	}
	
	modelId  := attr.ModelId
	objectId := attr.ObjectId
	return s.CacheModelObjectAttrs(modelId, objectId)
}

func (s *modelObjectAttrService) Delete(m map[string]interface{}) error {
	return s.repo.Delete(m)
}

func (s *modelObjectAttrService) CacheModelObjectAttrs(modelId, objectId int64) error {
	attrList, err1 := s.repo.GetListById(modelId, objectId)
	if err1 != nil {
		return err1
	}
	
	if len(attrList) <= 0 {
		return errors.New("biz Object Attrs Not Exist")
	}
	objectCode := attrList[0].ObjectCode
	err2 := cache.SetModelObjectAttrs(objectCode, attrList)
	if err2 != nil {
		return errors.New("Redis缓存Model数据失败")
	}
	return nil
}