from fastapi import APIRouter, Depends, Query
from sqlalchemy.ext.asyncio import AsyncSession

from app.auth.dependencies import get_current_user
from app.database import get_session
from app.models.user import User
from app.schemas.dashboard import DashboardResponse
from app.services import dashboard_service
from app.utils import utcnow

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


def _current_month() -> str:
    now = utcnow()
    return f"{now.year}-{now.month:02d}"


@router.get("", response_model=DashboardResponse)
async def get_dashboard(
    month: str = Query(default=None, description="Month YYYY-MM (defaults to current month)"),
    session: AsyncSession = Depends(get_session),
    current_user: User = Depends(get_current_user),
) -> DashboardResponse:
    if month is None:
        month = _current_month()
    return await dashboard_service.get_dashboard(session, current_user.id, month)