from fastapi import APIRouter, Depends
from sqlalchemy import text
from sqlalchemy.orm import Session

from app.database import get_db
from app.version import APP_NAME, APP_VERSION

router = APIRouter(tags=["health"])


def build_health_payload(db: Session) -> dict:
    db_status = "ok"
    try:
        db.execute(text("SELECT 1"))
    except Exception:
        db_status = "error"
    return {
        "status": "ok" if db_status == "ok" else "degraded",
        "database": db_status,
        "service": "security-alert-center",
        "name": APP_NAME,
        "version": APP_VERSION,
    }


@router.get("/health")
def health(db: Session = Depends(get_db)) -> dict:
    return build_health_payload(db)


@router.get("/healthz")
def healthz(db: Session = Depends(get_db)) -> dict:
    """Kubernetes-style alias; same payload as /health."""
    return build_health_payload(db)