package service

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

type BizObjectAttrService interface {
    GetList(m map[string]interface{}) ([]viewmodel.BizObjectAttrInfo, error)
    GetPage(m map[string]interface{}) (*viewmodel.PageResult, error)
    GetById(bizId, objectId, attrId int64) (*viewmodel.BizObjectAttrInfo, error)
    GetListById(bizId, objectId int64) ([]viewmodel.BizObjectAttrInfo, error)
    Create(d *datamodel.BizObjectAttr) error
    Update(d *datamodel.BizObjectAttr) error
    Delete(m map[string]interface{}) error
    
    CacheBizObjectAttrs(bizId, objectId int64) error
}

type bizObjectAttrService struct {
    repo *repositories.BizObjectAttrRepo
}

func NewBizObjectAttrService() BizObjectAttrService {
    return &bizObjectAttrService{
        repo: repositories.NewBizObjectAttrRepo(datasource.InstanceMaster()),
    }
}

func (s *bizObjectAttrService) GetListById(bizId, objectId int64) ([]viewmodel.BizObjectAttrInfo, error) {
    return s.repo.GetListById(bizId, objectId)
}

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

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

func (s *bizObjectAttrService) GetById(bizId, objectId, attrId int64) (*viewmodel.BizObjectAttrInfo, error) {
    return s.repo.GetById(bizId, objectId, attrId)
}

func (s *bizObjectAttrService) Create(attr *datamodel.BizObjectAttr) error {
    attr.AttrId = NewID()
    err := s.repo.Create(attr)
    if err != nil {
        return nil
    }
    
    bizId    := attr.BizId
    objectId := attr.ObjectId
    return s.CacheBizObjectAttrs(bizId, objectId)
}

func (s *bizObjectAttrService) Update(attr *datamodel.BizObjectAttr) error {
    err := s.repo.Update(attr)
    if err != nil {
        return nil
    }
    
    bizId    := attr.BizId
    objectId := attr.ObjectId
    return s.CacheBizObjectAttrs(bizId, objectId)
}

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

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