import { Router, Request, Response } from "express";
import { donorNotifications } from "../lib/mockDb.js";

const router = Router();

// ─── GET /notifications ───────────────────────────────────────────────────────
// Full queue (most recent first). Useful for debugging/inspection.
router.get("/notifications", (_req: Request, res: Response): void => {
  res.json([...donorNotifications].reverse());
});

// ─── GET /notifications/pending ───────────────────────────────────────────────
// Rows the external poller (OpenClaw) still needs to send via WhatsApp.
router.get("/notifications/pending", (_req: Request, res: Response): void => {
  res.json(donorNotifications.filter((n) => n.status === "pending"));
});

// ─── POST /notifications/:id/sent ─────────────────────────────────────────────
// Marks a queued notification as delivered (or failed). Called by the poller
// after it actually sends the WhatsApp message from the platform number.
router.post(
  "/notifications/:id/sent",
  (req: Request, res: Response): void => {
    const item = donorNotifications.find((n) => n.id === req.params.id);
    if (!item) {
      res.status(404).json({ error: "Not found" });
      return;
    }
    const failed = req.body?.status === "failed";
    item.status = failed ? "failed" : "sent";
    item.sentAt = failed ? null : new Date().toISOString();
    res.json(item);
  }
);

export default router;