added RAG, Multiuser, TG bot

backend/app/reminders_scoped/fire.py

@@ -0,0 +1,50 @@
+import logging
+from datetime import datetime, timezone
+
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.db.models import Reminder, User
+from app.reminders_scoped.completion import ReminderCompletionHandler
+from app.reminders.notify import bump_notify_seq
+
+logger = logging.getLogger(__name__)
+
+
+def _utcnow() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+def get_due_reminders(db: Session, user_id: int) -> list[Reminder]:
+    now = _utcnow()
+    stmt = (
+        select(Reminder)
+        .where(
+            Reminder.user_id == user_id,
+            Reminder.enabled.is_(True),
+            Reminder.completed_at.is_(None),
+            Reminder.due_at <= now,
+        )
+        .order_by(Reminder.due_at.asc())
+    )
+    rows = list(db.scalars(stmt).all())
+    return [row for row in rows if not (row.last_fired_at and row.last_fired_at >= row.due_at)]
+
+
+async def process_due_reminders(db: Session) -> int:
+    users = db.scalars(select(User).where(User.is_active.is_(True))).all()
+    total = 0
+    for user in users:
+        due = get_due_reminders(db, user.id)
+        if not due:
+            continue
+        handler = ReminderCompletionHandler(db, user.id)
+        for row in due:
+            await handler.process(row)
+        total += len(due)
+
+    if total:
+        db.commit()
+        bump_notify_seq(db)
+        logger.info("Reminders fired: %d", total)
+    return total