import fs from 'node:fs';

import { PNG } from 'pngjs';

const appConfigPath = new URL('../app.json', import.meta.url);
const appConfig = JSON.parse(fs.readFileSync(appConfigPath, 'utf8')).expo;
const appPath = new URL('../App.tsx', import.meta.url);
const appSource = fs.readFileSync(appPath, 'utf8');
const iconPath = new URL('../assets/icon.png', import.meta.url);
const icon = PNG.sync.read(fs.readFileSync(iconPath));

if (appConfig.scheme !== 'genarrative') {
  throw new Error('mobile shell scheme must be genarrative');
}

if (appConfig.icon !== './assets/icon.png') {
  throw new Error('mobile shell must use the real brand icon asset');
}

if (icon.width < 512 || icon.height < 512) {
  throw new Error('mobile shell icon must be a production-size brand asset');
}

if (!appConfig.ios?.associatedDomains?.includes('applinks:app.genarrative.world')) {
  throw new Error('mobile shell iOS associated domain is missing');
}

const androidFilter = appConfig.android?.intentFilters?.find((filter) =>
  filter?.data?.some(
    (entry) =>
      entry?.scheme === 'https' &&
      entry?.host === 'app.genarrative.world',
  ),
);
if (!androidFilter) {
  throw new Error('mobile shell Android app link filter is missing');
}

for (const snippet of [
  'Linking.getInitialURL()',
  "Linking.addEventListener('url'",
  'buildMobileShellUrlFromDeepLink',
  'configureMobileHostBridgeNavigation',
  'navigation.canGoBack',
  'buildHostBridgeMessageScript',
]) {
  if (!appSource.includes(snippet)) {
    throw new Error(`mobile shell App missing ${snippet}`);
  }
}