estelam ticket, varizha , others

apps/tickets/models.py

@@ -176,3 +176,30 @@ class MessageShare(PublicIdModel, models.Model):
 class TicketReadState(models.Model):
     ticket=models.ForeignKey(Ticket,on_delete=models.CASCADE,related_name="read_states"); user=models.ForeignKey(settings.AUTH_USER_MODEL,on_delete=models.CASCADE); last_read_at=models.DateTimeField(); last_read_message=models.ForeignKey("messaging.Message",on_delete=models.SET_NULL,null=True,blank=True)
     class Meta: constraints=[models.UniqueConstraint(fields=["ticket","user"],name="unique_ticket_read_state")]
+
+
+class DispatchResponseControl(models.Model):
+    """Absent for legacy dispatches: their existing visibility is preserved."""
+
+    class Mode(models.TextChoices):
+        SEALED = "SEALED", "بازگشایی یکجا"
+        INDIVIDUAL = "INDIVIDUAL", "مشاهده جداگانه"
+
+    dispatch = models.OneToOneField(GroupDispatch, on_delete=models.PROTECT, related_name="response_control")
+    mode = models.CharField(max_length=12, choices=Mode.choices, default=Mode.SEALED)
+    notify_sms = models.BooleanField(default=True)
+    recipient_count_snapshot = models.PositiveIntegerField()
+    opened_at = models.DateTimeField(null=True, blank=True)
+    opened_by = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, null=True, blank=True)
+    sms_body_snapshot = models.TextField(blank=True)
+    respondents_snapshot = models.JSONField(default=list, blank=True)
+
+    class Meta:
+        verbose_name = "تنظیمات و سابقه بازگشایی ارسال"
+        verbose_name_plural = "تنظیمات و سوابق بازگشایی ارسال‌ها"
+        permissions = [("open_all_dispatch_responses", "Can open responses of all authorized dispatches")]
+        constraints = [
+            models.CheckConstraint(condition=Q(notify_sms=False) | Q(mode="SEALED", recipient_count_snapshot__lte=15), name="dispatch_opening_sms_limit"),
+            models.CheckConstraint(condition=Q(mode__in=["SEALED", "INDIVIDUAL"]), name="dispatch_response_mode_valid"),
+            models.CheckConstraint(condition=Q(opened_at__isnull=True, opened_by__isnull=True) | Q(mode="SEALED", opened_at__isnull=False, opened_by__isnull=False), name="dispatch_opening_audit_complete"),
+        ]