From 5b0c2c87593c39c997f048159eeedb38e1628a0c Mon Sep 17 00:00:00 2001
From: Gordon <1432970085@qq.com>
Date: Wed, 26 May 2021 20:00:55 +0800
Subject: [PATCH] msg model

---
 .../im_mysql_msg_model/chat_log_model.go      | 48 +++++++++++++++++++
 .../im_mysql_msg_model/hash_code.go           | 36 ++++++++++++++
 .../im_mysql_msg_model/receive_model.go       | 36 ++++++++++++++
 3 files changed, 120 insertions(+)
 create mode 100644 src/common/db/mysql_model/im_mysql_msg_model/chat_log_model.go
 create mode 100644 src/common/db/mysql_model/im_mysql_msg_model/hash_code.go
 create mode 100644 src/common/db/mysql_model/im_mysql_msg_model/receive_model.go

diff --git a/src/common/db/mysql_model/im_mysql_msg_model/chat_log_model.go b/src/common/db/mysql_model/im_mysql_msg_model/chat_log_model.go
new file mode 100644
index 000000000..ca8c1c0b8
--- /dev/null
+++ b/src/common/db/mysql_model/im_mysql_msg_model/chat_log_model.go
@@ -0,0 +1,48 @@
+/*
+** description("").
+** copyright('tuoyun,www.tuoyun.net').
+** author("fg,Gordon@tuoyun.net").
+** time(2021/3/4 11:18).
+ */
+package im_mysql_msg_model
+
+import (
+	"Open_IM/src/common/db"
+	pbMsg "Open_IM/src/proto/chat"
+	"Open_IM/src/utils"
+	"database/sql"
+	"time"
+)
+
+// ChatLog Chat information table structure
+type ChatLog struct {
+	MsgId            string         `gorm:"primary_key"`               // Chat history primary key ID
+	SendID           string         `gorm:"column:send_id"`            // Send ID
+	RecvID           string         `gorm:"column:recv_id"`            //Receive ID
+	SendTime         time.Time      `gorm:"column:send_time"`          // Send time
+	SessionType      int32          `gorm:"column:session_type"`       // Session type
+	ContentType      int32          `gorm:"column:content_type"`       // Message content type
+	MsgFrom          int32          `gorm:"column:msg_from"`           // Source, user, system
+	Content          string         `gorm:"column:content"`            // Chat content
+	SenderPlatformID int32          `gorm:"column:sender_platform_id"` //The sender's platform ID
+	Remark           sql.NullString `gorm:"column:remark"`             // remark
+}
+
+func InsertMessageToChatLog(msgData pbMsg.WSToMsgSvrChatMsg) error {
+	dbConn, err := db.DB.MysqlDB.DefaultGormDB()
+	if err != nil {
+		return err
+	}
+	chatLog := ChatLog{
+		MsgId:            msgData.MsgID,
+		SendID:           msgData.SendID,
+		RecvID:           msgData.RecvID,
+		SendTime:         utils.UnixSecondToTime(msgData.SendTime),
+		SessionType:      msgData.SessionType,
+		ContentType:      msgData.ContentType,
+		MsgFrom:          msgData.MsgFrom,
+		Content:          msgData.Content,
+		SenderPlatformID: msgData.PlatformID,
+	}
+	return dbConn.Table("chat_log").Create(chatLog).Error
+}
diff --git a/src/common/db/mysql_model/im_mysql_msg_model/hash_code.go b/src/common/db/mysql_model/im_mysql_msg_model/hash_code.go
new file mode 100644
index 000000000..b349e7787
--- /dev/null
+++ b/src/common/db/mysql_model/im_mysql_msg_model/hash_code.go
@@ -0,0 +1,36 @@
+package im_mysql_msg_model
+
+import (
+	"Open_IM/src/common/config"
+	"Open_IM/src/common/db"
+	"hash/crc32"
+	"strconv"
+)
+
+func getHashMsgDBAddr(userID string) string {
+	hCode := crc32.ChecksumIEEE([]byte(userID))
+	return config.Config.Mysql.DBAddress[hCode%uint32(len(config.Config.Mysql.DBAddress))]
+}
+
+func getHashMsgTableIndex(userID string) int {
+	hCode := crc32.ChecksumIEEE([]byte(userID))
+	return int(hCode % uint32(config.Config.Mysql.DBMsgTableNum))
+}
+
+func QueryUserMsgID(userID string) ([]string, error) {
+	dbAddress, dbTableIndex := getHashMsgDBAddr(userID), getHashMsgTableIndex(userID)
+	dbTableName := "receive" + strconv.Itoa(dbTableIndex)
+
+	dbConn, _ := db.DB.MysqlDB.GormDB(dbAddress, config.Config.Mysql.DBTableName)
+
+	var msgID string
+	var msgIDList []string
+	rows, _ := dbConn.Raw("select msg_id from ? where user_id = ?", dbTableName, userID).Rows()
+	defer rows.Close()
+	for rows.Next() {
+		rows.Scan(&msgID)
+		msgIDList = append(msgIDList, msgID)
+	}
+
+	return msgIDList, nil
+}
diff --git a/src/common/db/mysql_model/im_mysql_msg_model/receive_model.go b/src/common/db/mysql_model/im_mysql_msg_model/receive_model.go
new file mode 100644
index 000000000..3973f71ef
--- /dev/null
+++ b/src/common/db/mysql_model/im_mysql_msg_model/receive_model.go
@@ -0,0 +1,36 @@
+/*
+** description("").
+** copyright('tuoyun,www.tuoyun.net').
+** author("fg,Gordon@tuoyun.net").
+** time(2021/3/4 11:18).
+ */
+package im_mysql_msg_model
+
+import (
+	"time"
+)
+
+// Receive Inbox table structure
+type Receive struct {
+	UserId     string `gorm:"primary_key"` // 收件箱主键ID
+	Seq        int64  `gorm:"primary_key"` // 收件箱主键ID
+	MsgId      string
+	CreateTime *time.Time
+}
+
+//func InsertMessageToReceive(seq int64, userid, msgid string) error {
+//	conn := db.NewDbConnection()
+//	receive := Receive{
+//		UID: userid,
+//		Seq:    seq,
+//		MsgId:  msgid,
+//	}
+//	err := conn.Table("receive").Create(&receive).Error
+//	return err
+//}
+//func GetBiggestSeqFromReceive(userid string) (seq int64, err error) {
+//	//得到数据库的连接（并非真连接，调用时才连接，由gorm自动维护数据库连接池）
+//	conn := db.NewDbConnection()
+//	err = conn.Raw("select max(seq) from receive where user_id = ?", userid).Row().Scan(&seq)
+//	return seq, err
+//}