import type { FastifyInstance } from "fastify";
import fp from "fastify-plugin";
import { AppError, errorBody, toAppError } from "../errors.js";

async function errorHandlerPlugin(app: FastifyInstance) {
  app.setErrorHandler((err, _request, reply) => {
    if (reply.sent) return;

    const appErr =
      err.statusCode === 401
        ? AppError.unauthorized()
        : toAppError(err);

    reply.status(appErr.statusCode).send(errorBody(appErr));
  });
}

export default fp(errorHandlerPlugin, { name: "error-handler" });