jy_docs/services/userlib/userDocService.go

package userlib

import (
	"app.yhyue.com/moapp/jyPoints/rpc/integral"
	"app.yhyue.com/moapp/jyPoints/rpc/integralclient"
	"app.yhyue.com/moapp/jy_docs/rpc/userlib/userlib"
	"app.yhyue.com/moapp/jy_docs/services/model"
	docRpcUtil "app.yhyue.com/moapp/jy_docs/services/util"
	"context"
	"errors"
	"github.com/tal-tech/go-zero/core/discov"
	"github.com/tal-tech/go-zero/zrpc"
	"gorm.io/gorm"
	"log"
	"time"
)

//文档收藏
func UserDocCollect(userDoc *model.UserDoc, cost int) bool {
	log.Println("UserDocCollect exec ......")
	orm := docRpcUtil.GetJyDocsDB()
	docData := model.UserDocData{}
	err := orm.Transaction(func(tx *gorm.DB) error {
		err0 := orm.Select("id,userId,docId,docCategory,isDelete").
			Where("userId = ? AND docId = ? AND (isDelete = 0 OR isDelete = 1)",userDoc.UserId,userDoc.DocId).
			Find(&docData).Error
		if err0 != nil {
			log.Println("查询已存在收藏记录失败")
			return err0
		}
		//已下载数据处理
		if docData.DocCategory == 1 {
			log.Println("该文档已下载，无法收藏")
			return  err0
		}

		//已收藏数据处理
		if docData.IsDelete == 0 && docData.UserId != "" {
			log.Println("此文档，该用户已收藏,不可重复收藏")
			return err0
		}
		//已取消收藏，再次进行收藏
		if docData.IsDelete == 1 && docData.UserId != "" {
			err := orm.Exec("UPDATE user_doc SET isDelete = 0 WHERE id = ?",docData.Id).Error
			if err != nil {
				log.Println("文档再次收藏失败")
				tx.Rollback()
				return err
			}
			//无收藏记录，新增收藏
		}else{
			//用户文库表添加记录(需要检查是否重复)
			timeData := time.Now()
			userDoc.CreateAt = timeData
			userDoc.UpdateAt = timeData
			userDoc.DeletedAt = timeData
			//查询文档基础信息
			doc := model.Doc{}
			err0 := orm.Where("id = ?",userDoc.DocId).
				Find(&doc).Error
			if err0 != nil || doc.Id == "" {
				log.Println("文档不存在",err0)
				return err0
			}
			userDoc.DocSourceUserId = doc.UserId
			userDoc.DocCategory = 2
			userDoc.IsDelete = int(userlib.UserDocStatus_Normal)
			userDoc.DocName = doc.DocName
			userDoc.DocFileType = doc.DocFileType
			userDoc.DocFileSuffix = doc.DocFileSuffix
			userDoc.DocFileSize = doc.DocFileSize
			userDoc.DocPageSize = doc.DocPageSize
			userDoc.DocSummary = doc.DocSummary
			err := orm.Create(userDoc).Error
			if err != nil {
				log.Println("userDocCollect error:", err)
				tx.Rollback()
				return err
			}
		}
		//用户收藏、转存记录表添加记录
		err := orm.Exec("insert into download_collection_record (docId,userId,sourceUserId,category,cost) values (?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.DocSourceUserId, userDoc.DocCategory, cost).Error
		if err != nil {
			log.Println("userDocCollect record insert error:", err)
			tx.Rollback()
			return err
		}
		return err
	})
	if err != nil {
		return false
	}
	return true
}

//文档取消收藏
func UserDocCancelCollect(userDocId string) bool {
	orm := docRpcUtil.GetJyDocsDB()
	err := orm.Transaction(func(tx *gorm.DB) error {
		err := orm.Exec("UPDATE user_doc SET isDelete = 1 WHERE id = ? AND docCategory = 2 AND isDelete = 0",userDocId).Error
		if err != nil {
			log.Println("文档取消收藏失败")
			tx.Rollback()
			return err
		}
		return nil
	})
	if err != nil {
		return false
	}
	return true
}

//转存操作
func UserDocDownload(userDoc *model.UserDoc, cost int,hosts []string,key string) (bool,string) {
	log.Println("UserDocCollect exec ......")
	msg:="转存成功"
	err := docRpcUtil.GetJyDocsDB().Transaction(func(tx *gorm.DB) error {
		//用户文库表添加记录
		//获取文档有关信息
		//查询之前有无下载记录  0和1只要有一条不能下载，如果有未删除可以下载
		userDocDownloadList := []model.UserDoc{}
		err := docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and docId=? and docCategory=? and (isDelete=? or isDelete=?)", userDoc.UserId, userDoc.DocId, model.UserDocCategory_Download, model.UserDocStatus_Normal, model.UserDocStatus_LogicDelete).Find(&userDocDownloadList)
		if err.Error != nil {
			log.Println("查询转存记录失败：",err)
			msg="查询转存记录失败"
			return err.Error
		}
		if len(userDocDownloadList) > 0 {
			msg="之前已经下载不能再次下载"
			return errors.New("之前已经下载不能再次下载")}
		//先扣除积分
		//rpc
		client := zrpc.MustNewClient(zrpc.RpcClientConf{
			Etcd: discov.EtcdConf{
				Hosts: hosts,
				Key:  key,
			},
		})
		integralLib := integralclient.NewIntegral(client)
		req := &integral.Req{UserId: userDoc.UserId,
			PointType:      2003,
			BusinessTypeId: 1,
			BusinessType:   "1",
			Point:          int64(cost),
			AppId:          10000}
		res, pointsErr := integralLib.IntegralConsume(context.Background(), req)
		log.Println("err ", pointsErr)
		log.Println("req ", res)
		if (pointsErr != nil ) {
			log.Println("扣除积分失败：",pointsErr)
			msg="扣除积分失败"
			return pointsErr
		}
		if (res.Code == 0) {
			log.Println("扣除积分失败：",pointsErr)
			msg=res.Message
			return  errors.New(res.Message)
		}
		//查询之前有无收藏记录 有收藏记录类型改为下载，状态改为未删除、有收藏记录插入一条新纪录
		userDocCollectionList := []model.UserDoc{}
		err = docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and docId=? and docCategory=? and (isDelete=? or isDelete=?)", userDoc.UserId, userDoc.DocId, model.UserDocCategory_Collect, model.UserDocStatus_Normal, model.UserDocStatus_LogicDelete).Find(&userDocCollectionList)
		if err.Error != nil {
			log.Println("收藏记录查询：",err)
			msg="收藏记录查询"
			return err.Error
		}
		if len(userDocCollectionList) > 0 {
			//修改收藏为下载
			if err := tx.Exec("update user_doc set docCategory=? , isDelete=?  ,update_at=?  where  id =?", model.UserDocCategory_Download, model.UserDocStatus_Normal, time.Now(), userDocCollectionList[0].ID).Error; err != nil {
				log.Println("收藏记录更改为转存记录失败：",err)
				msg="收藏记录更改为转存记录失败"
				tx.Rollback()
				return err
			}
			if err.Error != nil {
				log.Println("转存操作流水添加失败:", err)
				msg="收藏记录更改为转存记录失败"
				tx.Rollback()
				return err.Error
			}
			//用户收藏、转存记录表添加记录
			err := docRpcUtil.GetJyDocsDB().Exec("insert into download_collection_record (docId,userId,sourceUserId,category,cost,date) values (?,?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.DocSourceUserId, model.UserDocCategory_Download, cost, time.Now())
			if err.Error != nil {
				log.Println("转存操作流水添加失败:", err)
				msg="转存操作流水添加失败"
				tx.Rollback()
				return err.Error
			}
		} else {
			//用户文库表添加记录
			userDoc.CreateAt = time.Now()
			userDoc.UpdateAt = time.Now()
			userDoc.DeletedAt = time.Now()
			//获取文件基本信息

			//查询文档基础信息
			doc := model.Doc{}
			err0 := docRpcUtil.GetJyDocsDB().
				Where("id = ?",userDoc.DocId).
				Find(&doc)
			if err0.Error != nil {
				log.Println("文档不存在")
				msg="文档不存在"
				return errors.New("文档不存在")
			}
			userDoc.DocSourceUserId = doc.UserId
			userDoc.DocCategory = model.UserDocCategory_Download
			userDoc.IsDelete = int(userlib.UserDocStatus_Normal)
			userDoc.DocName = doc.DocName
			userDoc.DocFileType = doc.DocFileType
			userDoc.DocFileSuffix = doc.DocFileSuffix
			userDoc.DocFileSize = doc.DocFileSize
			userDoc.DocPageSize = doc.DocPageSize
			userDoc.DocSummary = doc.DocSummary
			err = docRpcUtil.GetJyDocsDB().Create(userDoc)
			if err.Error != nil {
				log.Println("转存操作添加失败:", err)
				msg="转存操作添加失败"
				tx.Rollback()
				return err.Error
			}
			//用户收藏、转存记录表添加记录
			err := docRpcUtil.GetJyDocsDB().Exec("insert into download_collection_record (docId,userId,sourceUserId,category,cost,date) values (?,?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.DocSourceUserId, model.UserDocCategory_Download, cost, time.Now())
			if err.Error != nil {
				log.Println("转存操作流水添加失败:", err)
				msg="转存操作流水添加失败"
				tx.Rollback()
				return err.Error
			}
		}
		return nil
	})
	if err != nil {
		return false,msg
	}
	return true,msg
}
//文档删除
func UserDocDelete(userDocId int32)  (bool,string){
	msg:="文档删除成功"
	err := docRpcUtil.GetJyDocsDB().Transaction(func(tx *gorm.DB) error {
		//逻辑删除
		err := docRpcUtil.GetJyDocsDB().Exec("UPDATE user_doc SET isDelete = ? WHERE id = ?", model.UserDocStatus_LogicDelete,userDocId).Error
		if err != nil {
			msg="文档删除失败"
			log.Println("文档删除失败:", err)
			tx.Rollback()
			return err
		}
		//删除记录新增

		return nil
	})
	if err != nil {
		return false,msg
	}
	return true,msg

}
//文档回收
func UserDocRestore(userDocId int32) (bool,string) {
	msg:="文档找回成功"
	err := docRpcUtil.GetJyDocsDB().Transaction(func(tx *gorm.DB) error {
		//逻辑删除
		err := docRpcUtil.GetJyDocsDB().Exec("UPDATE user_doc SET isDelete = ? WHERE id = ?",model.UserDocStatus_Normal, userDocId).Error
		if err != nil {
			msg="文档找回失败"
			log.Println("文档找回失败:", err)
			tx.Rollback()
			return err
		}
		return nil
	})
	if err != nil {
		return false,msg
	}
	return true,msg

}//永久删除
func UserDocPermanentDelete(userDocId int32) (bool,string) {
	msg:="永久删除成功"
	err := docRpcUtil.GetJyDocsDB().Transaction(func(tx *gorm.DB) error {
		//逻辑删除
		err := docRpcUtil.GetJyDocsDB().up("UPDATE user_doc SET isDelete = ? WHERE id = ?",model.UserDocStatus_PermanentlyDelete, userDocId).Error
		if err != nil {
			msg="永久删除失败"
			log.Println("永久删除失败:", err)
			tx.Rollback()
			return err
		}
		return nil
	})
	if err != nil {
		return false,msg
	}
	return true,msg

}