feat: Initialize core application structure with item tracking, price history, and notification channel management.

app/routers/notifications.py

@@ -0,0 +1,55 @@
+from fastapi import APIRouter, Depends, HTTPException, BackgroundTasks
+from sqlalchemy.orm import Session
+from app import database, models, schemas
+from app.services.notification_service import NotificationService
+
+router = APIRouter(
+    prefix="/notifications",
+    tags=["notifications"],
+)
+
+@router.get("/channels", response_model=list[schemas.NotificationChannelResponse])
+def get_channels(db: Session = Depends(database.get_db)):
+    return db.query(models.NotificationChannel).all()
+
+@router.post("/channels", response_model=schemas.NotificationChannelResponse)
+def create_channel(channel: schemas.NotificationChannelCreate, db: Session = Depends(database.get_db)):
+    db_channel = models.NotificationChannel(**channel.model_dump())
+    db.add(db_channel)
+    db.commit()
+    db.refresh(db_channel)
+    return db_channel
+
+@router.put("/channels/{channel_id}", response_model=schemas.NotificationChannelResponse)
+def update_channel(channel_id: int, channel_update: schemas.NotificationChannelUpdate, db: Session = Depends(database.get_db)):
+    db_channel = db.query(models.NotificationChannel).filter(models.NotificationChannel.id == channel_id).first()
+    if not db_channel:
+        raise HTTPException(status_code=404, detail="Channel not found")
+    
+    for key, value in channel_update.model_dump(exclude_unset=True).items():
+        setattr(db_channel, key, value)
+    
+    db.commit()
+    db.refresh(db_channel)
+    return db_channel
+
+@router.delete("/channels/{channel_id}")
+def delete_channel(channel_id: int, db: Session = Depends(database.get_db)):
+    db_channel = db.query(models.NotificationChannel).filter(models.NotificationChannel.id == channel_id).first()
+    if not db_channel:
+        raise HTTPException(status_code=404, detail="Channel not found")
+    
+    db.delete(db_channel)
+    db.commit()
+    return {"ok": True}
+
+@router.post("/channels/{channel_id}/test")
+async def test_channel(channel_id: int, background_tasks: BackgroundTasks, db: Session = Depends(database.get_db)):
+    db_channel = db.query(models.NotificationChannel).filter(models.NotificationChannel.id == channel_id).first()
+    if not db_channel:
+        raise HTTPException(status_code=404, detail="Channel not found")
+    
+    # Send test notification in background
+    background_tasks.add_task(NotificationService.send_test_notification, db_channel)
+    
+    return {"message": "Test notification queued"}