import { Router, Request, Response } from "express";
import { getDbStats } from "../db/queries";
import { pool } from "../db/client";

export const healthRouter = Router();

// GET /api/health — Health check with DB stats
healthRouter.get("/", async (_req: Request, res: Response) => {
  try {
    const start = Date.now();
    const stats = await getDbStats();
    const latencyMs = Date.now() - start;

    res.json({
      success: true,
      status: "healthy",
      version: "0.2.4",
      uptime: process.uptime(),
      database: {
        connected: true,
        latency_ms: latencyMs,
        stats,
      },
    });
  } catch (err) {
    res.status(503).json({
      success: false,
      status: "unhealthy",
      database: { connected: false, error: String(err) },
    });
  }
});