"""
Router "calendar" provides:

- listing calendars
- finding calendars by name prefix
- getting calendar events by calendar name prefix
"""

from logging import getLogger
from typing import Iterator

from fastapi import APIRouter, Depends

from ..config import CalendarUIConfig, Config
from ..dav_calendar import CalEvent, DavCalendar
from ._common import CalendarNameLister, PrefixFinder, PrefixUnique

_logger = getLogger(__name__)

router = APIRouter(prefix="/calendar", tags=["calendar"])

calendar_lister = CalendarNameLister()
calendar_finder = PrefixFinder(calendar_lister)
calendar_unique = PrefixUnique(calendar_finder)


@router.on_event("startup")
async def start_router() -> None:
    _logger.debug(f"{router.prefix} router starting.")


@router.get("/list", response_model=list[str])
async def list_calendars(
    names: Iterator[str] = Depends(calendar_lister),
) -> list[str]:
    return list(names)


@router.get("/find/{prefix}", response_model=list[str])
async def find_calendars(
    names: Iterator[str] = Depends(calendar_finder),
) -> list[str]:
    return list(names)


@router.get("/get/{prefix}", response_model=list[CalEvent])
async def get_calendar(
    name: str = Depends(calendar_unique),
) -> list[CalEvent]:
    return list(await DavCalendar(name).events)


@router.get(
    "/config",
    response_model=CalendarUIConfig,
)
async def get_ui_config(
    cfg: Config = Depends(Config.get),
) -> CalendarUIConfig:
    return cfg.calendar