MIF_E31222379_BE/config/whatsapp.go

148 lines
3.4 KiB
Go

package config
import (
"context"
"fmt"
"log"
"os"
"os/signal"
"syscall"
_ "github.com/lib/pq"
"github.com/mdp/qrterminal/v3"
"go.mau.fi/whatsmeow"
"go.mau.fi/whatsmeow/proto/waE2E"
"go.mau.fi/whatsmeow/store/sqlstore"
"go.mau.fi/whatsmeow/types"
waLog "go.mau.fi/whatsmeow/util/log"
"google.golang.org/protobuf/proto"
)
var WhatsAppClient *whatsmeow.Client
var container *sqlstore.Container
func InitWhatsApp() {
dbLog := waLog.Stdout("Database", "DEBUG", true)
dsn := fmt.Sprintf(
"postgres://%s:%s@%s:%s/%s?sslmode=disable",
os.Getenv("DB_USER"),
os.Getenv("DB_PASSWORD"),
os.Getenv("DB_HOST"),
os.Getenv("DB_PORT"),
os.Getenv("DB_NAME"),
)
var err error
container, err = sqlstore.New("postgres", dsn, dbLog)
if err != nil {
log.Fatalf("Failed to connect to WhatsApp database: %v", err)
}
deviceStore, err := container.GetFirstDevice()
if err != nil {
log.Fatalf("Failed to get WhatsApp device: %v", err)
}
clientLog := waLog.Stdout("Client", "DEBUG", true)
WhatsAppClient = whatsmeow.NewClient(deviceStore, clientLog)
if WhatsAppClient.Store.ID == nil {
fmt.Println("WhatsApp Client is not logged in, generating QR Code...")
qrChan, _ := WhatsAppClient.GetQRChannel(context.Background())
err = WhatsAppClient.Connect()
if err != nil {
log.Fatalf("Failed to connect WhatsApp client: %v", err)
}
for evt := range qrChan {
if evt.Event == "code" {
fmt.Println("QR Code untuk login:")
generateQRCode(evt.Code)
} else {
fmt.Println("Login event:", evt.Event)
}
}
} else {
fmt.Println("WhatsApp Client sudah login, langsung terhubung...")
err = WhatsAppClient.Connect()
if err != nil {
log.Fatalf("Failed to connect WhatsApp client: %v", err)
}
}
log.Println("WhatsApp client connected successfully!")
go handleShutdown()
}
func generateQRCode(qrString string) {
qrterminal.GenerateHalfBlock(qrString, qrterminal.M, os.Stdout)
}
func handleShutdown() {
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
<-sigChan
log.Println("Shutting down WhatsApp client...")
WhatsAppClient.Disconnect()
os.Exit(0)
}
func SendWhatsAppMessage(phone, message string) error {
if WhatsAppClient == nil {
return fmt.Errorf("WhatsApp client is not initialized")
}
targetJID, _ := types.ParseJID(phone + "@s.whatsapp.net")
msg := waE2E.Message{
Conversation: proto.String(message),
}
_, err := WhatsAppClient.SendMessage(context.Background(), targetJID, &msg)
if err != nil {
return fmt.Errorf("failed to send WhatsApp message: %v", err)
}
log.Printf("WhatsApp message sent successfully to: %s", phone)
return nil
}
func LogoutWhatsApp() error {
if WhatsAppClient == nil {
return fmt.Errorf("WhatsApp client is not initialized")
}
WhatsAppClient.Disconnect()
err := removeWhatsAppDeviceFromContainer()
if err != nil {
return fmt.Errorf("failed to remove device from container: %v", err)
}
err = container.Close()
if err != nil {
return fmt.Errorf("failed to close database connection: %v", err)
}
log.Println("WhatsApp client disconnected and session cleared successfully.")
return nil
}
func removeWhatsAppDeviceFromContainer() error {
deviceStore, err := container.GetFirstDevice()
if err != nil {
return fmt.Errorf("failed to get WhatsApp device: %v", err)
}
if deviceStore != nil {
err := deviceStore.Delete()
if err != nil {
return fmt.Errorf("failed to remove device from store: %v", err)
}
}
return nil
}