feat(webhook): persist provider receipt statuses

internal/handler/webhook/facebook_webhook.go

@@ -25,11 +25,13 @@ package webhook
 //   - Same hub.mode/hub.verify_token/hub.challenge verification flow
 
 import (
+	"context"
 	"encoding/json"
 	"io"
 	"net/http"
 	"os"
 	"strconv"
+	"time"
 
 	"github.com/gin-gonic/gin"
 
@@ -193,6 +195,7 @@ func (h *FacebookWebhookHandler) HandleFacebookWebhook(c *gin.Context) {
 				"event_type", event.EventType,
 				"inbox_id", inbox.ID,
 			)
+			h.persistFacebookReceipt(c.Request.Context(), inbox, event)
 			continue
 		}
 
@@ -423,7 +426,11 @@ func (h *FacebookWebhookHandler) instagramAppSecrets(events []*fbchannel.ParsedW
 }
 
 func (h *FacebookWebhookHandler) processInstagramEvent(c *gin.Context, inbox *model.Inbox, event *fbchannel.ParsedWebhookEvent) {
-	if fbchannel.IsEchoMessage(event) || fbchannel.IsDeliveryOrReadReceipt(event) || fbchannel.IsThreadControlEvent(event) {
+	if fbchannel.IsDeliveryOrReadReceipt(event) {
+		h.persistFacebookReceipt(c.Request.Context(), inbox, event)
+		return
+	}
+	if fbchannel.IsEchoMessage(event) || fbchannel.IsThreadControlEvent(event) {
 		return
 	}
 
@@ -463,6 +470,39 @@ func (h *FacebookWebhookHandler) processInstagramEvent(c *gin.Context, inbox *mo
 	}
 }
 
+func (h *FacebookWebhookHandler) persistFacebookReceipt(ctx context.Context, inbox *model.Inbox, event *fbchannel.ParsedWebhookEvent) {
+	if h.persister == nil {
+		return
+	}
+	switch event.EventType {
+	case fbchannel.EventFBDelivery, fbchannel.EventIGDelivery:
+		if event.Delivery == nil {
+			return
+		}
+		occurredAt := millisToTime(event.Delivery.Watermark)
+		for _, mid := range event.Delivery.Mids {
+			if err := h.persister.UpdateMessageStatus(ctx, inbox, mid, model.MessageStatusDelivered, occurredAt); err != nil {
+				applogger.L().Errorf("Facebook webhook: delivery status persistence failed mid=%s inbox=%d: %v", mid, inbox.ID, err)
+			}
+		}
+	case fbchannel.EventFBRead, fbchannel.EventIGRead:
+		if event.Read == nil {
+			return
+		}
+		if err := h.persister.UpdateContactConversationMessagesStatus(ctx, inbox, event.SenderID, model.MessageStatusRead, millisToTime(event.Read.Watermark)); err != nil {
+			applogger.L().Errorf("Facebook webhook: read status persistence failed sender=%s inbox=%d: %v", event.SenderID, inbox.ID, err)
+		}
+	}
+}
+
+func millisToTime(value int64) *time.Time {
+	if value <= 0 {
+		return nil
+	}
+	t := time.UnixMilli(value)
+	return &t
+}
+
 func parseOptionalUintParam(value string) (uint, error) {
 	if value == "" {
 		return 0, nil