from fastapi import APIRouter, Query, Response
from pydantic import BaseModel
from typing import List, Optional, Dict, Any

router = APIRouter()

class ActivityResponse(BaseModel):
    id: Optional[int] = None
    garmin_activity_id: Optional[str] = None
    activity_name: Optional[str] = None
    activity_type: Optional[str] = None
    start_time: Optional[str] = None
    duration: Optional[int] = None
    # file_path removed since we store in DB
    file_type: Optional[str] = None
    download_status: Optional[str] = None
    downloaded_at: Optional[str] = None

@router.get("/activities/list", response_model=List[ActivityResponse])
async def list_activities(
    limit: int = Query(50, ge=1, le=200),
    offset: int = Query(0, ge=0)
):
    # This would return metadata for all downloaded/available activities
    # Implementation will connect with the services layer
    return []

@router.get("/activities/query", response_model=List[ActivityResponse])
async def query_activities(
    activity_type: Optional[str] = Query(None),
    start_date: Optional[str] = Query(None),
    end_date: Optional[str] = Query(None),
    download_status: Optional[str] = Query(None)
):
    # This would allow advanced filtering of activities
    # Implementation will connect with the services layer
    return []

@router.get("/activities/download/{activity_id}")
async def download_activity(activity_id: str):
    # This would serve the stored activity file from the database
    # Implementation will connect with the services layer
    # It should return the file content with appropriate content-type
    return Response(content=b"sample_content", media_type="application/octet-stream", headers={"Content-Disposition": f"attachment; filename=activity_{activity_id}.tcx"})