import { Request, Response, NextFunction, Router } from 'express';
import { HttpError } from '../../errors';
import * as notificheService from './notifiche.service';

function asyncHandler(
  handler: (req: Request, res: Response, next: NextFunction) => Promise<void>,
) {
  return (req: Request, res: Response, next: NextFunction): void => {
    handler(req, res, next).catch(next);
  };
}

function parseId(req: Request, next: NextFunction): number | undefined {
  const id = Number(req.params.id);
  if (!Number.isInteger(id)) {
    next(new HttpError(400, "l'id deve essere un numero intero"));
    return undefined;
  }
  return id;
}

export const notificheRouter = Router();

notificheRouter.get(
  '/',
  asyncHandler(async (req, res) => {
    res.status(200).json(await notificheService.listNotifiche(req.auth!));
  }),
);

notificheRouter.get(
  '/non-lette/count',
  asyncHandler(async (req, res) => {
    res.status(200).json({ count: await notificheService.countNonLette(req.auth!) });
  }),
);

notificheRouter.put(
  '/letta-tutte',
  asyncHandler(async (req, res) => {
    await notificheService.segnaTutteLette(req.auth!);
    res.status(204).end();
  }),
);

notificheRouter.put(
  '/:id/letta',
  asyncHandler(async (req, res, next) => {
    const id = parseId(req, next);
    if (id === undefined) return;

    await notificheService.segnaLetta(id, req.auth!);
    res.status(204).end();
  }),
);

export default notificheRouter;