posts devel

posts/tasks.py

@@ -0,0 +1,27 @@
+# posts/tasks.py
+from celery import shared_task
+from django.utils import timezone
+from .models import PostJob, Post
+from .utils import render_post_text, build_keyboard, send_post_to_chat
+
+@shared_task(bind=True, rate_limit="25/m")  # мягкий лимит
+def run_post_jobs(self):
+    jobs = (PostJob.objects
+            .select_related("post","chat")
+            .filter(status=Post.QUEUED, run_at__lte=timezone.now())[:50])
+    for job in jobs:
+        try:
+            text = render_post_text(job.post)
+            kb = build_keyboard(job.post.buttons)
+            send_post_to_chat(job.chat.chat_id, job.post, text, kb)  # обёртка над PTB Bot
+            job.status = Post.SENT
+            job.save(update_fields=["status"])
+        except Exception as e:
+            job.attempts += 1
+            job.last_error = str(e)[:2000]
+            if job.attempts >= job.max_attempts:
+                job.status = Post.FAILED
+            else:
+                # экспоненциальный backoff
+                job.run_at = timezone.now() + timezone.timedelta(minutes=2 ** min(job.attempts,4))
+            job.save()