import { RedirectCommand, ResolveFn, Router } from '@angular/router';
import { Chain } from '../models/Chain';
import { ChainDAO } from '../dao/ChainDAO';
import { inject } from '@angular/core';

export const chainResolver: ResolveFn<Chain> = async (route, _) => {
  const chainDAO = inject(ChainDAO);
  const router = inject(Router);
  const chainID = (<{ id: string }>route.params).id;
  let chain = new Chain('', null);
  try {
    const results = await chainDAO.findBy({ id: Number(chainID) });
    if (!results[0]) {
      throw new Error('The search for chain on edit did not find any match');
    }
    chain = results[0];
  } catch (e) {
    console.error(e);
    return new RedirectCommand(router.parseUrl('settings/chains'), {
      skipLocationChange: true,
    });
  }
  return chain;
};