from datetime import datetime, timezone

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

from app.config import settings
from app.database import get_db

router = APIRouter()


@router.get("")
async def health():
    return {"status": "ok", "timestamp": datetime.now(timezone.utc).isoformat()}


@router.get("/detailed")
async def health_detailed(db: AsyncSession = Depends(get_db)):
    # Check DB
    db_ok = False
    try:
        await db.execute(text("SELECT 1"))
        db_ok = True
    except Exception:
        pass

    # Check Redis
    redis_ok = False
    try:
        r = redis_lib.from_url(settings.REDIS_URL)
        redis_ok = r.ping()
    except Exception:
        pass

    status = "ok" if (db_ok and redis_ok) else "degraded"
    return {
        "status": status,
        "database": "ok" if db_ok else "error",
        "redis": "ok" if redis_ok else "error",
        "timestamp": datetime.now(timezone.utc).isoformat(),
    }