import { FastifyReply, FastifyRequest } from 'fastify';
import mongoose from 'mongoose';

export function errorHandler(
  error: any,
  req: FastifyRequest,
  res: FastifyReply
) {
  if (process.env.DEV) {
    console.dir(error, { depth: null });
  }

  if (error.validation) {
    const errMsg = {
      type: 'validation_error',
      path: error.validation[0].instancePath,
      context: error.validationContext,
      msg: error.validation[0].message,
      params: error.validation[0].params,
    };

    return res.code(400).send(errMsg);
  }

  if (error instanceof mongoose.mongo.MongoServerError) {
    if (error.code === 11000) {
      return res.code(400).send({
        type: 'duplicate_key',
        context: 'body',
        msg: 'value already exists',
        params: error.keyValue,
      });
    }
  }

  return res.code(500).send();
}