chore: import clean Agent Desk snapshot (3/7)

internal/services/zalo_inbound_service.go

@@ -0,0 +1,126 @@
+package services
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"agent-desk/internal/models"
+	"agent-desk/internal/pkg/enums"
+	"agent-desk/internal/pkg/errorsx"
+	"agent-desk/internal/pkg/openidentity"
+	"agent-desk/internal/zalo"
+)
+
+var ZaloOAInboundService = newZaloOAInboundService()
+
+func newZaloOAInboundService() *zaloOAInboundService {
+	return &zaloOAInboundService{}
+}
+
+type zaloOAInboundService struct{}
+
+// HandleWebhook processes an incoming webhook Event from Zalo OA.
+func (s *zaloOAInboundService) HandleWebhook(ctx context.Context, channelID string, signatureHeader string, rawPayload []byte) error {
+	channelID = strings.TrimSpace(channelID)
+	var channel *models.Channel
+	if channelID != "" {
+		channel = ChannelService.Take("channel_id = ? AND channel_type = ? AND status = ?", channelID, enums.ChannelTypeZaloOA, enums.StatusOk)
+	}
+	if channel == nil {
+		channel = ChannelService.Take("channel_type = ? AND status = ?", enums.ChannelTypeZaloOA, enums.StatusOk)
+	}
+	if channel == nil {
+		return errorsx.InvalidParam("zalo oa channel not found or disabled")
+	}
+
+	cfg, err := ChannelService.ParseZaloOAChannelConfig(channel.ConfigJSON)
+	if err != nil || cfg == nil || cfg.AccessToken == "" {
+		return errorsx.InvalidParam("zalo oa channel config invalid")
+	}
+
+	if cfg.WebhookSecret != "" && strings.TrimSpace(signatureHeader) != "" {
+		// Optional header/secret verification
+		if strings.TrimSpace(signatureHeader) != cfg.WebhookSecret {
+			return errorsx.UnauthorizedI18n("error.auth.invalidSignature")
+		}
+	}
+
+	var event zalo.WebhookEvent
+	if err := json.Unmarshal(rawPayload, &event); err != nil {
+		return fmt.Errorf("unmarshal zalo oa event failed: %w", err)
+	}
+
+	// Filter user-sent text messages
+	if event.EventName != "user_send_text" && event.EventName != "user_send_image" && event.EventName != "user_send_file" {
+		return nil
+	}
+
+	senderID := strings.TrimSpace(event.Sender.ID)
+	if senderID == "" {
+		return nil
+	}
+
+	text := ""
+	if event.Message != nil {
+		text = strings.TrimSpace(event.Message.Text)
+	}
+	if text == "" && event.EventName != "user_send_text" {
+		text = fmt.Sprintf("[%s]", event.EventName)
+	}
+	if text == "" {
+		return nil
+	}
+
+	// 1. Resolve customer identity
+	name := fmt.Sprintf("Zalo User %s", senderID)
+	if displayName, ok := event.Info["display_name"].(string); ok && strings.TrimSpace(displayName) != "" {
+		name = strings.TrimSpace(displayName)
+	}
+
+	externalUser := openidentity.ExternalUser{
+		ExternalSource: enums.ExternalSourceZaloOA,
+		ExternalID:     senderID,
+		ExternalName:   name,
+	}
+
+	// 2. Create or match Conversation
+	conversation, err := ConversationService.Create(externalUser, channel.ID, channel.AIAgentID)
+	if err != nil {
+		return fmt.Errorf("create zalo conversation failed: %w", err)
+	}
+
+	// 3. Send message through MessageService
+	msgID := ""
+	if event.Message != nil {
+		msgID = event.Message.MsgID
+	}
+	if msgID == "" {
+		msgID = fmt.Sprintf("zalo_%s_%s", senderID, event.Timestamp)
+	}
+	clientMsgID := fmt.Sprintf("zalo_%s", msgID)
+
+	payloadMap := map[string]any{
+		"zalo_user_id":   senderID,
+		"zalo_msg_id":    msgID,
+		"zalo_app_id":    event.AppID,
+		"zalo_recipient": event.Recipient.ID,
+		"zalo_event":     event.EventName,
+	}
+	payloadBytes, _ := json.Marshal(payloadMap)
+
+	_, err = MessageService.SendCustomerMessage(
+		conversation.ID,
+		clientMsgID,
+		enums.IMMessageTypeText,
+		text,
+		string(payloadBytes),
+		externalUser,
+	)
+	if err != nil {
+		return fmt.Errorf("send customer message failed: %w", err)
+	}
+
+	return nil
+}