update

main.go

@@ -1,7 +1,10 @@
 package main
 
 import (
+	//	"encoding/json"
 	"fmt"
+	"log"
+	"math"
 	"time"
 
 	"github.com/Arman92/go-tdlib"
@@ -68,3 +71,107 @@ func main() {
 	getHistory(client, &chtwrsID64)
 
 }
+
+func getHistory(c *tdlib.Client, chatID64 *int64) {
+	var msgCount int32 = 0
+	var msgParsed int32 = 0
+	var loopOverflow int32 = 0
+	var lastParsedID64 int64 = int64(math.MaxInt64)
+	var lastParsedTime time.Time = time.Now()
+	var m ChatWarsMessage
+	var chat int64
+
+	chat = *chatID64
+
+	fmt.Printf("Getting details for chatID64 %d ...\n", chat)
+
+	chatDetails, err := c.GetChat(chat)
+	failOnError(err, "getHistory : GetChat")
+	fmt.Printf("Exporting historic messages for chat %d (%s) ...\n", chat, chatDetails.Title)
+
+	for lastParsedID64 >= 0 {
+		prevLastParsedID64 := lastParsedID64
+		msgs, err := c.GetChatHistory(chat, lastParsedID64, 0, 99, false)
+		if err != nil {
+			if err.Error() == "timeout" {
+				logOnError(err, "Waiting....")
+				fmt.Printf("Timeout  : %d messages retrieved out of %d dating back %s (%d) ...\n", msgCount, msgParsed, lastParsedTime.Format(time.RFC3339), lastParsedID64)
+				time.Sleep(5 * time.Second)
+			} else {
+				logOnError(err, "Cannot get history")
+				lastParsedID64 = -1
+			}
+		} else if msgs.TotalCount > 0 {
+			for _, msg := range msgs.Messages {
+				msgParsed = msgParsed + 1
+				lastParsedTime = time.Unix(int64(msg.Date), 0)
+				switch msg.Content.GetMessageContentEnum() {
+				case tdlib.MessageTextType:
+					if msg.ForwardInfo == nil {
+						m = ChatWarsMessage{
+							TGUserID64:       ownUserID64,
+							TGSenderUserID64: int64(msg.SenderUserID),
+							ID64:             msg.ID,
+							ChatID64:         msg.ChatID,
+							Text:             msg.Content.(*tdlib.MessageText).Text.Text,
+						}
+						m.Date = time.Unix(int64(msg.Date), 0)
+					} else {
+						if msg.ForwardInfo.GetMessageForwardInfoEnum() == tdlib.MessageForwardedFromUserType {
+							m = ChatWarsMessage{
+								TGUserID64:       int64(msg.SenderUserID),
+								TGSenderUserID64: int64(msg.ForwardInfo.(*tdlib.MessageForwardedFromUser).SenderUserID),
+								ID64:             msg.ID,
+								ChatID64:         0,
+								Text:             msg.Content.(*tdlib.MessageText).Text.Text,
+							}
+							m.Date = time.Unix(int64(msg.ForwardInfo.(*tdlib.MessageForwardedFromUser).Date), 0)
+
+						} else {
+							m = ChatWarsMessage{
+								ID64: 0,
+							}
+						}
+					}
+
+					if m.ID64 != 0 {
+						// export msg here
+						msgCount = msgCount + 1
+					}
+				default:
+					log.Printf("getHistory(%d) : no handler for %s\n", msg.ID, msg.Content.GetMessageContentEnum())
+				}
+				if m.ID64 < lastParsedID64 {
+					lastParsedID64 = msg.ID
+					lastParsedTime = m.Date
+				}
+				if msgParsed%1000 == 0 {
+					fmt.Printf("Waiting  : %d messages retrieved out of %d dating back %s (%d) ...\n", msgCount, msgParsed, lastParsedTime.Format(time.RFC3339), lastParsedID64)
+				}
+
+			}
+		} else {
+			lastParsedID64 = -1
+		}
+		if prevLastParsedID64 == lastParsedID64 {
+			loopOverflow++
+			if loopOverflow == 5 {
+				// we should be at the end !
+				lastParsedID64 = -1
+			} else {
+				logOnError(err, "Overflow ...")
+				fmt.Printf("Overflow : %d messages retrieved out of %d dating back %s (%d) ...\n", msgCount, msgParsed, lastParsedTime.Format(time.RFC3339), lastParsedID64)
+				time.Sleep(5 * time.Second)
+			}
+		} else {
+			loopOverflow = 0
+		}
+	}
+	log.Printf("Exported %d messages.\n", msgCount)
+	fmt.Printf("Exported %d messages.\n", msgCount)
+}
+
+func OwnUserID(c *tdlib.Client) int32 {
+	user, _ := c.GetMe()
+	return user.ID
+}