import logging

from fastapi import APIRouter, HTTPException, status, Depends

from amarillo.models.Carpool import Region
from amarillo.services.regions import RegionService
# from amarillo.services.oauth2 import get_current_user, verify_permission
# from amarillo.models.User import User
from amarillo.utils.container import container
from fastapi.responses import FileResponse

logger = logging.getLogger(__name__)

router = APIRouter()

# @router.post("/export")
# async def trigger_export(requesting_user: User = Depends(get_current_user)):
#     verify_permission("generate-gtfs", requesting_user)
#     #import is here to avoid circular import
#     from amarillo.plugins.gtfs_export.gtfs_generator import generate_gtfs
#     generate_gtfs()

#TODO: move to amarillo/utils?
def _assert_region_exists(region_id: str) -> Region:
    regions: RegionService = container['regions']
    region = regions.get_region(region_id)
    region_exists = region is not None

    if not region_exists:
        message = f"Region with id {region_id} does not exist."
        logger.error(message)
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=message)

    return region


# @router.get("/region/{region_id}/gtfs", 
#     summary="Return GTFS Feed for this region",
#     response_description="GTFS-Feed (zip-file)",
#     response_class=FileResponse,
#     responses={
#                 status.HTTP_404_NOT_FOUND: {"description": "Region not found"},
#         }
#     )
# async def get_file(region_id: str, requesting_user: User = Depends(get_current_user)):
#     verify_permission("gtfs", requesting_user)
#     _assert_region_exists(region_id)
#     return FileResponse(f'data/gtfs/amarillo.{region_id}.gtfs.zip')

# @router.get("/region/{region_id}/gtfs-rt",
#     summary="Return GTFS-RT Feed for this region",
#     response_description="GTFS-RT-Feed",
#     response_class=FileResponse,
#     responses={
#                 status.HTTP_404_NOT_FOUND: {"description": "Region not found"},
#                 status.HTTP_400_BAD_REQUEST: {"description": "Bad request, e.g. because format is not supported, i.e. neither protobuf nor json."}
#         }
#     )
# async def get_file(region_id: str, format: str = 'protobuf', requesting_user: User = Depends(get_current_user)):
#     verify_permission("gtfs", requesting_user)
#     _assert_region_exists(region_id)
#     if format == 'json':
#         return FileResponse(f'data/gtfs/amarillo.{region_id}.gtfsrt.json')
#     elif format == 'protobuf':
#         return FileResponse(f'data/gtfs/amarillo.{region_id}.gtfsrt.pbf')
#     else:
#         message = "Specified format is not supported, i.e. neither protobuf nor json."
#         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=message)