package service

import (
    "errors"
    "xps/cache"
    "xps/datamodels"
    "xps/datasource"
    "xps/repositories"
    "xps/viewmodels"
)

type BizObjectMappingService interface {
    GetList(m map[string]interface{}) ([]viewmodels.BizObjectMappingInfo, error)
    GetPage(m map[string]interface{}) (*viewmodels.PageResult, error)
    GetById(bizId, objectId, mappingId int64) (*viewmodels.BizObjectMappingInfo, error)
    GetListById(bizId, objectId int64) ([]viewmodels.BizObjectMappingInfo, error)
    Create(d *datamodels.BizObjectMapping) error
    Update(d *datamodels.BizObjectMapping) error
    Delete(m map[string]interface{}) error
    
    CacheBizObjectMapping(bizId, objectId int64) error
}

type bizObjectMappingService struct {
    repo *repositories.BizObjectMappingRepo
}

func NewBizObjectMappingService() BizObjectMappingService {
    return &bizObjectMappingService{
        repo: repositories.NewBizObjectMappingRepo(datasource.InstanceMaster()),
    }
}

func (s *bizObjectMappingService) GetList(m map[string]interface{}) ([]viewmodels.BizObjectMappingInfo, error) {
    return s.repo.GetList(m)
}

func (s *bizObjectMappingService) GetListById(bizId, objectId int64) ([]viewmodels.BizObjectMappingInfo, error) {
    return s.repo.GetListById(bizId, objectId)
}


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

func (s *bizObjectMappingService) GetById(bizId, objectId, attrId int64) (*viewmodels.BizObjectMappingInfo, error) {
    return s.repo.GetById(bizId, objectId, attrId)
}

func (s *bizObjectMappingService) Create(attr *datamodels.BizObjectMapping) error {
    attr.MappingId = NewID()
    err := s.repo.Create(attr)
    if err != nil {
        return nil
    }
    
    bizId    := attr.BizId
    objectId := attr.ObjectId
    return s.CacheBizObjectMapping(bizId, objectId)
}

func (s *bizObjectMappingService) Update(attr *datamodels.BizObjectMapping) error {
    err := s.repo.Update(attr)
    if err != nil {
        return nil
    }
    
    bizId    := attr.BizId
    objectId := attr.ObjectId
    return s.CacheBizObjectMapping(bizId, objectId)
}

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

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