import { createRequire } from 'node:module';
import { basename, dirname, resolve } from 'node:path';
import { existsSync, readFileSync, statSync } from 'node:fs';
import { inc } from 'semver';
import type { PackageJson } from './types';

export function getSharedDependencies() {
  const require = createRequire(import.meta.url);
  return require('@openmrs/esm-app-shell/dependencies.json');
}

export function getMainBundle(project: PackageJson) {
  const file = project.browser || project.module || project.main;

  if (!file) {
    throw Error(
      'Could not find project to run. If you ran this outside of a directory containing an app, make sure you specify --sources.',
    );
  }

  return {
    path: file,
    name: basename(file),
    dir: dirname(file),
  };
}

export function getAppRoutes(sourceDirectory: string, project: PackageJson): Record<string, unknown> {
  const routesPath = resolve(sourceDirectory, 'src', 'routes.json');

  if (!existsSync(routesPath)) {
    return {};
  }

  const stats = statSync(routesPath);

  if (!stats.isFile()) {
    return {};
  }

  const json = JSON.parse(readFileSync(routesPath, { encoding: 'utf-8' }));

  if (!(typeof json === 'object')) {
    return {};
  }

  json['version'] = project.version ? inc(project.version, 'prerelease', 'local') : undefined;

  return json;
}