use axum::{Json, Router, extract::State, routing::get};
use serde::Serialize;

use crate::state::AppState;

#[derive(Serialize)]
struct HealthResponse {
  status:   &'static str,
  database: bool,
}

async fn health_check(State(state): State<AppState>) -> Json<HealthResponse> {
  let db_ok = sqlx::query_scalar::<_, i32>("SELECT 1")
    .fetch_one(&state.pool)
    .await
    .is_ok();

  let status = if db_ok { "ok" } else { "degraded" };

  Json(HealthResponse {
    status,
    database: db_ok,
  })
}

pub fn router() -> Router<AppState> {
  Router::new().route("/health", get(health_check))
}