chore: build

backend/gestion/services/lbtelegram.go

@@ -0,0 +1,87 @@
+package services
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"time"
+)
+
+var LBTelegram *LBTelegramService
+
+type LBTelegramService struct {
+	gatewayURL   string
+	Bot1Username string
+	client       *http.Client
+}
+
+func NewLBTelegramService() *LBTelegramService {
+	url := os.Getenv("LBTELEGRAM_URL")
+	if url == "" {
+		url = "http://lbtelegram:8081"
+	}
+	svc := &LBTelegramService{
+		gatewayURL:   url,
+		Bot1Username: os.Getenv("LBTELEGRAM_BOT1_USERNAME"),
+		client:       &http.Client{Timeout: 10 * time.Second},
+	}
+	LBTelegram = svc
+	return svc
+}
+
+func (s *LBTelegramService) IsConfigured() bool {
+	return os.Getenv("LBTELEGRAM_URL") != ""
+}
+
+// EnrollUser enrôle un utilisateur auprès de LBTelegram après liaison du compte.
+// LBTelegram envoie lui-même le message de confirmation (chaîne Bot1→Bot2→Bot3).
+func (s *LBTelegramService) EnrollUser(chatID int64, username, role string) error {
+	payload := map[string]interface{}{
+		"user_id":  chatID,
+		"username": username,
+		"role":     role,
+		"chat_id":  chatID,
+	}
+
+	body, _ := json.Marshal(payload)
+	resp, err := s.client.Post(s.gatewayURL+"/enrollment/begin", "application/json", bytes.NewReader(body))
+	if err != nil {
+		return fmt.Errorf("enrollment: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		b, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("enrollment HTTP %d: %s", resp.StatusCode, string(b))
+	}
+
+	log.Printf("✅ [LB] Enrollment OK pour %s (%s)", username, role)
+	return nil
+}
+
+// SendNotification envoie un message via la gateway LBTelegram.
+// Le bot est choisi automatiquement selon la stratégie configurée (failover/roundrobin/leastconn).
+func (s *LBTelegramService) SendNotification(userID int64, message string) error {
+	payload := map[string]interface{}{
+		"user_id": userID,
+		"message": message,
+	}
+
+	body, _ := json.Marshal(payload)
+	resp, err := s.client.Post(s.gatewayURL+"/notify", "application/json", bytes.NewReader(body))
+	if err != nil {
+		return fmt.Errorf("notify: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		b, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("notify HTTP %d: %s", resp.StatusCode, string(b))
+	}
+
+	return nil
+}