jy_docs/services/userlib/userDocService.go

package userlib

import (
	"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"
	"errors"
	"fmt"
	"gorm.io/gorm"
	"log"
	"time"
)

//文档收藏
func UserDocCollect(userDoc *model.UserDoc) 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,isCollection").
			Where("userId = ? AND docId = ? AND appId = ?", userDoc.UserId, userDoc.DocId,userDoc.AppId).
			Find(&docData).Error
		if err0 != nil {
			log.Println("查询已存在收藏记录失败")
			return errors.New("查询已存在收藏记录失败")
		}
		//已收藏数据处理
		if docData.IsCollection == 1 {
			log.Println("此文档，该用户已收藏,不可重复收藏")
			return errors.New("此文档，该用户已收藏,不可重复收藏")
		}
		//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")
			return errors.New("文档不存在")
		}
		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
		userDoc.IsCollection = 1
		userDoc.Cost = fmt.Sprint(doc.Price)
		//已取消收藏，再次进行收藏
		if docData.IsCollection == 0 && docData.UserId != "" {
			err := orm.Exec("UPDATE user_doc SET isCollection = 1 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
			err := orm.Create(userDoc).Error
			if err != nil {
				log.Println("userDocCollect error:", err)
				tx.Rollback()
				return err
			}
		}
		//用户收藏、兑换记录表添加记录
		err := orm.Exec("insert into download_collection_record (docId,userId,appId,sourceUserId,category,cost) values (?,?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.AppId, userDoc.DocSourceUserId, 2, doc.Price).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(docId, userId,appId string) bool {
	orm := docRpcUtil.GetJyDocsDB()
	err := orm.Transaction(func(tx *gorm.DB) error {
		//收藏记录详情
		userDoc := model.UserDoc{}
		err := orm.Where("docId = ? AND userId = ? AND appId = ? AND isCollection = 1", docId,userId,appId).
			Find(&userDoc).Error
		if err != nil || userDoc.ID == 0{
			log.Println("无此收藏记录，取消收藏失败", err)
			return errors.New("无此收藏记录，取消收藏失败")
		}
		//文档取消收藏状态修改
		err = orm.Exec("UPDATE user_doc SET isCollection = 0 WHERE id = ? AND isCollection = 1", userDoc.ID).Error
		if err != nil {
			log.Println("文档取消收藏失败")
			tx.Rollback()
			return err
		}
		//记录文档取消收藏添加记录
		err = orm.Exec("insert into download_collection_record (docId,userId,appId,sourceUserId,category,cost) values (?,?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.AppId, userDoc.DocSourceUserId, 3, userDoc.Cost).Error
		if err != nil {
			log.Println("userDocCollect record insert error:", err)
			tx.Rollback()
			return err
		}
		return nil
	})
	if err != nil {
		return false
	}
	return true
}

//兑换操作
func UserDocDownload(userDoc *model.UserDoc, cost int) (bool, string) {
	log.Println("UserDocCollect exec ......")
	msg := "兑换成功"
	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
		//查询之前有无兑换记录  0和1只要有一条不能兑换，如果有未删除可以兑换
		userDocDownloadList := []model.UserDoc{}
		err := docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and docId=? and isDownload=1 and (isDelete=? or isDelete=?)  and  appId=?", userDoc.UserId, userDoc.DocId, model.UserDocStatus_Normal, model.UserDocStatus_LogicDelete, userDoc.AppId).Find(&userDocDownloadList)
		if err.Error != nil {
			log.Println("查询兑换记录失败：", err)
			msg = "查询兑换记录失败"
			return err.Error
		}
		if len(userDocDownloadList) > 0 {
			msg = "之前已经兑换不能再次兑换"
			return errors.New("之前已经兑换不能再次兑换")
		}
		//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:          userDoc.AppId}
		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)
		}*/
		//查询之前有无记录 有记录类型更新兑换，状态改为未删除、没有记录插入一条新纪录
		userDocCollectionList := []model.UserDoc{}
		err = docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and docId=? and  appId=? ", userDoc.UserId, userDoc.DocId, userDoc.AppId).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 {
			//兑换记录修改
			if err := tx.Exec("update user_doc set isDownload=? , isDelete=?  ,update_at=?  where  id =?", 1, model.UserDocStatus_Normal, time.Now(), userDocCollectionList[0].ID).Error; err != nil {
				log.Println("兑换记录修改失败：", err)
				msg = "兑换记录修改失败"
				tx.Rollback()
				return err
			}
			if err.Error != nil {
				log.Println("兑换操作流水添加失败:", err)
				msg = "收藏记录更改为兑换记录失败"
				tx.Rollback()
				return err.Error
			}
			//用户收藏、兑换记录表添加记录
			err := docRpcUtil.GetJyDocsDB().Exec("insert into download_collection_record (docId,userId,sourceUserId,category,cost,date,appId) values (?,?,?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.DocSourceUserId, model.UserDocCategory_Download, cost, time.Now(), userDoc.AppId)
			if err.Error != nil {
				log.Println("兑换操作流水添加失败:", err)
				msg = "兑换操作流水添加失败"
				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()
			userDoc.IsCollection = 0
			userDoc.IsDownload = 1
			//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.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("兑换操作添加失败:", err)
				msg = "兑换操作添加失败"
				tx.Rollback()
				return err.Error
			}
			//用户收藏、兑换记录表添加记录
			err := docRpcUtil.GetJyDocsDB().Exec("insert into download_collection_record (docId,userId,sourceUserId,category,cost,date,appId) values (?,?,?,?,?,?,?)", userDoc.DocId, userDoc.UserId, userDoc.DocSourceUserId, model.UserDocCategory_Download, cost, time.Now(), userDoc.AppId)
			if err.Error != nil {
				log.Println("兑换操作流水添加失败:", err)
				msg = "兑换操作流水添加失败"
				tx.Rollback()
				return err.Error
			}
		}
		return nil
	})
	if err != nil {
		return false, msg
	}
	return true, msg
}

//文档删除
func UserDocDelete(userDocId int32,appId, userId string) (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 docId = ? and  userId=? and appId=?", model.UserDocStatus_LogicDelete, userDocId,userId,appId).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
		err = docRpcUtil.GetJyDocsDB().Exec("insert into del_record (docId, userId, date, operate, appId) values (?,?,?,?,?)",userDocId, userId, time.Now(), 1, appId).Error
		if err != nil {
			tx.Rollback()
			msg = "删除记录新增失败"
			log.Println("删除记录新增失败:", err)
			return err
		}
		return nil
	})
	if err != nil {
		return false, msg
	}
	return true, msg

}

//文档回收
func UserDocRestore(userDocId int32,appId ,userId string) (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 docId = ? and  userId=? and  appId=?", model.UserDocStatus_Normal, userDocId,userId,appId).Error
		if err != nil {
			msg = "文档找回失败"
			log.Println("文档找回失败:", err)
			tx.Rollback()
			return err
		}
		//删除记录新增
		err = docRpcUtil.GetJyDocsDB().Exec("insert into del_record (docId, userId, date, operate, appId) values (?,?,?,?,?)", userDocId, userId, time.Now(), 2, appId).Error
		if err != nil {
			tx.Rollback()
			msg = "删除记录新增失败"
			log.Println("删除记录新增失败:", err)
			return err
		}
		return nil
	})
	if err != nil {
		return false, msg
	}
	return true, msg

} //永久删除
func UserDocPermanentDelete(userDocId int32,appId ,userId string) (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().Exec("UPDATE user_doc SET isDelete = ? ,isDownload=0 WHERE docId = ? and  userId=? and  appId=?", model.UserDocStatus_PermanentlyDelete, userDocId,userId,appId).Error
		if err != nil {
			msg = "永久删除失败"
			log.Println("永久删除失败:", err)
			tx.Rollback()
			return err
		}
		//删除记录新增
		err = docRpcUtil.GetJyDocsDB().Exec("insert into del_record (docId, userId, date, operate, appId) values (?,?,?,?,?)", userDocId, userId, time.Now(), 4, appId).Error
		if err != nil {
			tx.Rollback()
			msg = "删除记录新增失败"
			log.Println("删除记录新增失败:", err)
			return err
		}
		return nil
	})
	if err != nil {
		return false, msg
	}
	return true, msg

}

//我的文库列表(包括回收站列表)0兑换的 1收藏的 2回收站的
func UserDocsList(in *userlib.UserDocsRequest) ([]*model.UserDoc, int64, bool, string) {
	msg := "查询成功"
	data := []*model.UserDoc{}
	count := int64(0)
	startIndex := (in.Page - 1) * in.PageSize
	err := docRpcUtil.GetJyDocsDB().Transaction(func(tx *gorm.DB) error {
		switch in.UserDocCategory {
		case int64(0):
			//兑换的
			err := docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and isDownload=1 and isDelete=?  and  appId=? ", in.UserId, model.UserDocStatus_Normal, in.AppId).Find(&data)
			count = int64(len(data))
			err = docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and isDownload=1 and isDelete=?  and  appId=? order by create_at desc  limit ?,?", in.UserId, model.UserDocStatus_Normal, in.AppId, startIndex, in.PageSize).Find(&data)
			if err.Error != nil {
				log.Println("查询兑换记录失败：", err)
				msg = "查询兑换记录失败"
				return err.Error
			}
		case int64(1):
			//收藏的
			err := docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and isCollection=1 and appId=? ", in.UserId, in.AppId).Find(&data)
			count = int64(len(data))
			err = docRpcUtil.GetJyDocsDB().Table("user_doc").Where("userId=? and isCollection=1 and appId=? order by create_at desc  limit ?,?", in.UserId, in.AppId, startIndex, in.PageSize).Find(&data)
			if err.Error != nil {
				log.Println("查询收藏记录失败：", err)
				msg = "查询收藏记录失败"
				return err.Error
			}
		case int64(2):
			//回收站
			err := docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=? and   isDelete=?  and  appId=? ", in.UserId, model.UserDocStatus_LogicDelete, in.AppId).Find(&data)
			count = int64(len(data))
			err = docRpcUtil.GetJyDocsDB().Table("user_doc").Where(" userId=?  and  isDelete=?  and  appId=?  order by create_at desc limit ?,?", in.UserId, model.UserDocStatus_LogicDelete, in.AppId, startIndex, in.PageSize).Find(&data)
			if err.Error != nil {
				log.Println("查询回收站记录失败：", err)
				msg = "查询回收站记录失败"
				return err.Error
			}
		}
		return nil
	})
	if err != nil {
		return data, count, false, msg
	}
	return data, count, true, msg

}