package service

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

type BizObjectOAMService interface {
    GetList(m map[string]interface{}) ([]viewmodel.BizObjectOAMInfo, error)
    GetListById(bizId, objectId int64) ([]viewmodel.BizObjectOAMInfo, error)
    GetById(bizId, objectId, oamId int64) (*viewmodel.BizObjectOAMInfo, error)
    Create(d *datamodel.BizObjectOAM) error
    Update(d *datamodel.BizObjectOAM) error
    Delete(m map[string]interface{}) error
    
    CacheBizObjectOAM(bizId, objectId, oamId int64) error
    CacheApiData(apiId int64) error
}

type bizObjectOAMService struct {
    bizObjectOAMRepo *repositories.BizObjectOAMRepo
    apiRepo *repositories.ApiRepo
}

func NewBizObjectOAMService() BizObjectOAMService {
    return &bizObjectOAMService{
        bizObjectOAMRepo: repositories.NewBizObjectOAMRepo(datasource.InstanceMaster()),
        apiRepo: repositories.NewApiRepo(datasource.InstanceMaster()),
    }
}

func (s *bizObjectOAMService) GetList(m map[string]interface{}) ([]viewmodel.BizObjectOAMInfo, error) {
    return s.bizObjectOAMRepo.GetList(m)
}

func (s *bizObjectOAMService) GetListById(bizId, objectId int64) ([]viewmodel.BizObjectOAMInfo, error) {
    return s.bizObjectOAMRepo.GetListById(bizId, objectId)
}

func (s *bizObjectOAMService) GetById(bizId, objectId, oamId int64) (*viewmodel.BizObjectOAMInfo, error) {
    return s.bizObjectOAMRepo.GetById(bizId, objectId, oamId)
}

func (s *bizObjectOAMService) Create(oam *datamodel.BizObjectOAM) error {
    oamId    := NewID()
    oam.OamId = oamId
    
    // 1.新增Object OAM
    err1 := s.bizObjectOAMRepo.Create(oam)
    if err1 != nil {
        return err1
    }
    
    // 2.Redis缓存Object OAM
    bizId    := oam.BizId
    objectId := oam.ObjectId
    err2 := s.CacheBizObjectOAM(bizId, objectId, oamId)
    if err2 != nil {
        return err2
    }
    
    // 3.生成API
    apiId := oamId
    apiMethod := s.GetApiMethodByOAMType(oam.OamType)
    api := &datamodel.Api{
        ApiId: apiId,
        ApiMethod: apiMethod,
        ApiType: apiMethod,
        ApiTitle: oam.OamTitle,
        ApiDesc: "",
        ApiParams: "",
        ApiCode: oam.OamCode,
        BizId: oam.BizId,
        ObjectId: oam.ObjectId,
        OamId: oamId,
        Status: 1,
        CreatedAt: time.Now(),
        CreatedBy: oam.CreatedBy,
    }
    err3 := s.apiRepo.Create(api)
    if err3 != nil {
        return err3
    }
    
    // 4.缓存API
    return s.CacheApiData(apiId)
}

func (s *bizObjectOAMService) Update(oam *datamodel.BizObjectOAM) error {
    
    // 1. Update Object OAM
    err := s.bizObjectOAMRepo.Update(oam)
    if err != nil {
        return err
    }
    
    // 2.缓存Object OAM
    bizId    := oam.BizId
    objectId := oam.ObjectId
    oamId    := oam.OamId
    err2 := s.CacheBizObjectOAM(bizId, objectId, oamId)
    if err2 != nil {
        return err2
    }
    
    // 3.更新API
    apiId := oam.OamId
    apiMethod := s.GetApiMethodByOAMType(oam.OamType)
    api := &datamodel.Api {
        ApiId: apiId,
        ApiMethod: apiMethod,
        ApiType: apiMethod,
        ApiTitle: oam.OamTitle,
        ApiDesc: "",
        ApiParams: "",
        ApiCode: oam.OamCode,
        BizId: oam.BizId,
        ObjectId: oam.ObjectId,
        OamId: oamId,
        Status: 1,
        UpdatedAt: time.Now(),
        UpdatedBy: oam.UpdatedBy,
    }
    err3 := s.apiRepo.Update(api)
    if err3 != nil {
        return err3
    }
    
    // 4.更新API缓存数据
    return s.CacheApiData(apiId)
}

func (s *bizObjectOAMService) Delete(m map[string]interface{}) error {
    // 1.删除Object OAM
    err1 := s.bizObjectOAMRepo.Delete(m)
    if err1 != nil {
        return err1
    }
    
    // 2.删除API
    m["apiId"] = m["oamId"]
    err2 := s.apiRepo.Delete(m)
    if err2 != nil {
        return err2
    }
    return nil
}

func (s *bizObjectOAMService) CacheBizObjectOAM(bizId, objectId, oamId int64) error {
    oam, err1 := s.bizObjectOAMRepo.GetById(bizId, objectId, oamId)
    if err1 != nil {
        return err1
    }
    
    err3 := cache.SetBizObjectOAM(oam.ObjectCode, oam.OamCode, oam)
    if err3 != nil {
        return errors.New("Redis缓存Model数据失败")
    }
    return nil
}

func (s *bizObjectOAMService) CacheApiData(apiId int64) error {
    api, err1 := s.apiRepo.GetById(apiId)
    if err1 != nil {
        return err1
    }
    
    objectCode := api.ObjectCode
    oamCode    := api.OamCode
    err3 := cache.SetApiData(objectCode, oamCode, api)
    if err3 != nil {
        return errors.New("Redis缓存Api数据失败")
    }
    return nil
}

func (s *bizObjectOAMService) GetApiMethodByOAMType(oamType int64) int64 {
    if oamType == constant.OAM_GET_ONE ||
        oamType == constant.OAM_GET_LIST ||
        oamType == constant.OAM_GET_PAGE {
        return constant.API_METHOD_GET
    }
    
    if oamType == constant.OAM_CREATE {
        return constant.API_METHOD_POST
    }
    
    if oamType == constant.OAM_UPDATE {
        return constant.API_METHOD_PUT
    }
    
    if oamType == constant.OAM_PATCH {
        return constant.API_METHOD_PATCH
    }
    
    if oamType == constant.OAM_DELETE {
        return constant.API_METHOD_DELETE
    }
    
    return constant.API_METHOD_GET
}