"""Health check endpoints."""

from typing import Any

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

from backend.app.api.deps import get_db
from backend.app.core.security import limiter

router = APIRouter()


@router.get("")
@limiter.exempt
async def health_check() -> dict[str, str]:
    """Basic health check endpoint."""
    return {"status": "healthy"}


@router.get("/ready")
@limiter.exempt
async def readiness_check() -> dict[str, str]:
    """Readiness check endpoint."""
    return {"status": "ready"}


@router.get("/db")
@limiter.exempt
async def database_health_check(
    db: AsyncSession = Depends(get_db),
) -> dict[str, Any]:
    """Health check that verifies database connectivity.

    Returns:
        Status indicating healthy/unhealthy and database connection state.
    """
    try:
        result = await db.execute(text("SELECT 1"))
        result.scalar()
        return {"status": "healthy", "database": "connected"}
    except Exception as e:
        return {"status": "unhealthy", "database": "error", "detail": str(e)}