commit fe7d119a63b23dd9f33ac106b7cb773eb3b8c873
Author: shoopea <shoopea@siteop.biz>
Date:   Sun Dec 29 10:45:12 2019 +0800

    initial commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..146deef
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# gocwexp
+
diff --git a/def.go b/def.go
new file mode 100644
index 0000000..1c40aee
--- /dev/null
+++ b/def.go
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"time"
+
+	tb "gopkg.in/tucnak/telebot.v2"
+)
+
+type ChatWarsMessage struct {
+	TGUserID64       int64     `json:"tg_user_id"`
+	TGSenderUserID64 int64     `json:"tg_sender_user_id"`
+	Date             time.Time `json:"date"`
+	ID64             int64     `json:"id"`
+	ChatID64         int64     `json:"chat_id"`
+	Text             string    `json:"text"`
+}
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..0cadcf6
--- /dev/null
+++ b/main.go
@@ -0,0 +1,74 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"gopkg.in/gcfg.v1"
+
+	"github.com/Arman92/go-tdlib"
+)
+
+var (
+	ownUserID64 = int64(0)
+	ownUserID32 = int32(0)
+)
+
+func main() {
+
+	tdlib.SetLogVerbosityLevel(1)
+	tdlib.SetFilePath("./errors.txt")
+
+	// Create new instance of client
+	client := tdlib.NewClient(tdlib.Config{
+		APIID:               "187786",
+		APIHash:             "e782045df67ba48e441ccb105da8fc85",
+		SystemLanguageCode:  "en",
+		DeviceModel:         "ChatWarsExport",
+		SystemVersion:       "0.1",
+		ApplicationVersion:  "0.1",
+		UseMessageDatabase:  true,
+		UseFileDatabase:     true,
+		UseChatInfoDatabase: true,
+		UseTestDataCenter:   false,
+		DatabaseDirectory:   "./tdlib-db",
+		FileDirectory:       "./tdlib-files",
+		IgnoreFileNames:     false,
+	})
+
+	for {
+		currentState, _ := client.Authorize()
+		if currentState.GetAuthorizationStateEnum() == tdlib.AuthorizationStateWaitPhoneNumberType {
+			fmt.Print("Enter phone: ")
+			var number string
+			fmt.Scanln(&number)
+			_, err := client.SendPhoneNumber(number)
+			logOnError(err, "Error sending phone number.")
+		} else if currentState.GetAuthorizationStateEnum() == tdlib.AuthorizationStateWaitCodeType {
+			fmt.Print("Enter code: ")
+			var code string
+			fmt.Scanln(&code)
+			_, err := client.SendAuthCode(code)
+			logOnError(err, "Error sending auth code.")
+		} else if currentState.GetAuthorizationStateEnum() == tdlib.AuthorizationStateWaitPasswordType {
+			fmt.Print("Enter Password: ")
+			var password string
+			fmt.Scanln(&password)
+			_, err := client.SendAuthPassword(password)
+			logOnError(err, "Error sending auth password.")
+		} else if currentState.GetAuthorizationStateEnum() == tdlib.AuthorizationStateReadyType {
+			fmt.Println("Authorization Ready! Let's rock")
+			break
+		}
+		time.Sleep(1 * time.Second)
+	}
+
+	ownUserID32 = OwnUserID(client)
+	ownUserID64 = int64(OwnUserID(client))
+
+	getHistory(client, 408101137)
+
+}
diff --git a/td.go b/td.go
new file mode 100644
index 0000000..d9e63c4
--- /dev/null
+++ b/td.go
@@ -0,0 +1,113 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"math"
+	"time"
+
+	"github.com/Arman92/go-tdlib"
+)
+
+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 chat int64
+	var m ChatWarsMessage
+
+	chat = *chatID64
+
+	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
+}
diff --git a/utils.go b/utils.go
new file mode 100644
index 0000000..59e408e
--- /dev/null
+++ b/utils.go
@@ -0,0 +1,17 @@
+package main
+
+import (
+	"log"
+)
+
+func failOnError(err error, msg string) {
+	if err != nil {
+		log.Fatalf("%s: %s", msg, err)
+	}
+}
+
+func logOnError(err error, msg string) {
+	if err != nil {
+		log.Printf("%s: %s", msg, err)
+	}
+}