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 shellAppPath = new URL('../src/shell/ShellApp.tsx', import.meta.url);
const shellAppSource = fs.readFileSync(shellAppPath, 'utf8');
const bridgePath = new URL('../src/host-bridge/bridge.ts', import.meta.url);
const bridgeSource = fs.readFileSync(bridgePath, 'utf8');
const dispatchPath = new URL('../src/host-bridge/dispatch.ts', import.meta.url);
const dispatchSource = fs.readFileSync(dispatchPath, 'utf8');
const bridgeDirPath = new URL('../src/host-bridge/', import.meta.url);
const bridgeSourceFiles = fs
  .readdirSync(bridgeDirPath, { withFileTypes: true })
  .filter(
    (entry) =>
      entry.isFile() &&
      entry.name.endsWith('.ts') &&
      !entry.name.includes('.test.'),
  )
  .map((entry) => new URL(entry.name, bridgeDirPath))
  .sort((left, right) => left.pathname.localeCompare(right.pathname));
const hostBridgeSource = bridgeSourceFiles
  .map((file) => fs.readFileSync(file, 'utf8'))
  .join('\n');
const urlPath = new URL('../src/shell/url.ts', import.meta.url);
const urlSource = fs.readFileSync(urlPath, 'utf8');
const runtimePath = new URL('../src/shell/runtime.ts', import.meta.url);
const runtimeSource = fs.readFileSync(runtimePath, 'utf8');
const sharedContractPath = new URL(
  '../../../packages/shared/src/contracts/hostBridge.ts',
  import.meta.url,
);
const sharedContractSource = fs.readFileSync(sharedContractPath, 'utf8');
const packagePath = new URL('../package.json', import.meta.url);
const packageConfig = JSON.parse(fs.readFileSync(packagePath, 'utf8'));
const rootPackagePath = new URL('../../../package.json', import.meta.url);
const rootPackageConfig = JSON.parse(fs.readFileSync(rootPackagePath, 'utf8'));
const rootPackageLockPath = new URL('../../../package-lock.json', import.meta.url);
const rootPackageLock = JSON.parse(fs.readFileSync(rootPackageLockPath, 'utf8'));
const iconPath = new URL('../assets/icon.png', import.meta.url);
const icon = PNG.sync.read(fs.readFileSync(iconPath));
const brandBackgroundColor = '#fffdf9';
const productionSourceRoots = [
  new URL('../App.tsx', import.meta.url),
  new URL('../app.json', import.meta.url),
  new URL('../package.json', import.meta.url),
  new URL('../src/', import.meta.url),
];
const productionFileExtensions = new Set(['.json', '.mjs', '.ts', '.tsx']);
const devScaffoldTerms = [
  'mo' + 'ck',
  'fa' + 'ke',
  'place' + 'holder',
  'st' + 'ub',
  'TO' + 'DO',
  'FIX' + 'ME',
  '占' + '位',
  '模' + '拟',
  '伪' + '造',
];
const blockedMobileChannelDependencies = [
  '@react-native-firebase/analytics',
  '@react-native-firebase/app',
  '@segment/analytics-react-native',
  '@sentry/react-native',
  'amplitude-react-native',
  'expo-application',
  'expo-updates',
  'posthog-react-native',
  'react-native-code-push',
];
const blockedMobileChannelLockDependencies = blockedMobileChannelDependencies.filter(
  (dependency) => dependency !== 'expo-application',
);
const blockedMobileChannelSnippets = [
  '@react-native-firebase/analytics',
  '@react-native-firebase/app',
  '@segment/analytics-react-native',
  '@sentry/react-native',
  'Amplitude.getInstance',
  'Analytics.screen',
  'Analytics.track',
  'CodePush.sync',
  'PostHogProvider',
  'Sentry.init',
  'Updates.checkForUpdateAsync',
  'Updates.fetchUpdateAsync',
  'Updates.reloadAsync',
  'analytics().logEvent',
  'amplitude.init',
  'codePush(',
  'posthog.capture',
  'posthog.init',
];
const blockedScheduledNotificationSnippets = [
  'SchedulableTriggerInputTypes',
  'cancelScheduledNotificationAsync',
  'getAllScheduledNotificationsAsync',
  'getNextTriggerDateAsync',
  'seconds:',
  'repeats:',
  "type: 'calendar'",
  "type: 'daily'",
  "type: 'date'",
  "type: 'monthly'",
  "type: 'timeInterval'",
  "type: 'weekly'",
  "type: 'yearly'",
  'DateTriggerInput',
  'TimeIntervalTriggerInput',
];
const blockedAndroidPermissions = [
  'android.permission.MANAGE_EXTERNAL_STORAGE',
  'android.permission.READ_EXTERNAL_STORAGE',
  'android.permission.RECORD_AUDIO',
  'android.permission.RECEIVE_BOOT_COMPLETED',
  'android.permission.REQUEST_INSTALL_PACKAGES',
  'android.permission.SCHEDULE_EXACT_ALARM',
  'android.permission.USE_EXACT_ALARM',
  'android.permission.WRITE_EXTERNAL_STORAGE',
];

function extractStringArrayExport(source, exportName, seen = new Set()) {
  if (seen.has(exportName)) {
    throw new Error(`cyclic string array export ${exportName}`);
  }

  const match = source.match(
    new RegExp(`export const ${exportName}[^=]*= \\[([\\s\\S]*?)\\](?: as const)?;`),
  );
  if (!match) {
    throw new Error(`unable to read ${exportName}`);
  }

  const nextSeen = new Set(seen);
  nextSeen.add(exportName);
  const entries = [];
  for (const entry of match[1].matchAll(/\.\.\s*([A-Z0-9_]+)|'([^']+)'/g)) {
    if (entry[1]) {
      entries.push(...extractStringArrayExport(source, entry[1], nextSeen));
    } else {
      entries.push(entry[2]);
    }
  }

  return entries;
}

function extractStringConstExport(source, exportName) {
  const match = source.match(
    new RegExp(`export const ${exportName}\\s*=\\s*'([^']+)';`),
  );
  if (!match) {
    throw new Error(`unable to read ${exportName}`);
  }

  return match[1];
}

function extractMobileBridgeHandledMethods(source) {
  const match = source.match(
    /async function dispatchMobileHostBridgeRequest[\s\S]*?switch \(request\.method\) \{([\s\S]*?)\n  \}/,
  );
  if (!match) {
    throw new Error('unable to read mobile shell HostBridge handler methods');
  }

  return [...match[1].matchAll(/case '([^']+)':/g)].map((entry) => entry[1]);
}

function assertNoBlockedMobileChannelDependencies(packageJson, packageLabel) {
  const dependencySections = [
    'dependencies',
    'devDependencies',
    'optionalDependencies',
    'peerDependencies',
  ];

  for (const dependency of blockedMobileChannelDependencies) {
    for (const section of dependencySections) {
      if (packageJson[section]?.[dependency]) {
        throw new Error(
          `${packageLabel} must not depend on ${dependency} before the real mobile channel contract exists`,
        );
      }
    }
  }
}

function assertNoBlockedMobileChannelLockPackages() {
  const packageNames = Object.keys(rootPackageLock.packages ?? {})
    .filter((packagePath) => packagePath.startsWith('node_modules/'))
    .map((packagePath) => packagePath.replace(/^node_modules\//, ''));
  const dependencyNames = Object.keys(rootPackageLock.dependencies ?? {});
  const lockedPackageNames = new Set([...packageNames, ...dependencyNames]);

  for (const dependency of blockedMobileChannelLockDependencies) {
    if (lockedPackageNames.has(dependency)) {
      throw new Error(
        `root package-lock must not resolve ${dependency} before the real mobile channel contract exists`,
      );
    }
  }
}

function assertNoBlockedMobileChannelSnippets() {
  const sources = [
    ['app.json', JSON.stringify(appConfig)],
    ['App.tsx', appSource],
    ['ShellApp.tsx', shellAppSource],
    ['src/host-bridge', hostBridgeSource],
    ['url.ts', urlSource],
    ['runtime.ts', runtimeSource],
  ];

  for (const [sourceName, source] of sources) {
    for (const snippet of blockedMobileChannelSnippets) {
      if (source.includes(snippet)) {
        throw new Error(
          `mobile shell ${sourceName} must not initialize ${snippet} before the real channel contract exists`,
        );
      }
    }
  }
}

function assertPackageScript(packageJson, packageLabel, scriptName, expected) {
  const actual = packageJson.scripts?.[scriptName];
  if (actual !== expected) {
    throw new Error(
      `${packageLabel} script ${scriptName} drifted: expected ${expected} but got ${actual}`,
    );
  }
}

function assertPackageDependencyVersion(
  packageJson,
  packageLabel,
  section,
  dependency,
  expected,
) {
  const actual = packageJson[section]?.[dependency];
  if (actual !== expected) {
    throw new Error(
      `${packageLabel} ${section}.${dependency} drifted: expected ${expected} but got ${actual}`,
    );
  }
}

function assertPackageLockVersion(dependency, expected) {
  const actual = rootPackageLock.packages?.[`node_modules/${dependency}`]?.version;
  if (actual !== expected) {
    throw new Error(
      `root package-lock ${dependency} resolved version drifted: expected ${expected} but got ${actual}`,
    );
  }
}

function collectProductionSourceFiles(entry) {
  const stats = fs.statSync(entry);
  if (stats.isDirectory()) {
    const directory = entry.href.endsWith('/') ? entry : new URL(`${entry.href}/`);
    return fs
      .readdirSync(entry, { withFileTypes: true })
      .flatMap((child) =>
        collectProductionSourceFiles(
          new URL(`${child.name}${child.isDirectory() ? '/' : ''}`, directory),
        ),
      );
  }

  const path = entry.pathname;
  const extension = path.match(/\.[^.]+$/)?.[0] ?? '';
  if (!productionFileExtensions.has(extension)) {
    return [];
  }
  if (path.includes('.test.') || path.endsWith('/scripts/check-config.mjs')) {
    return [];
  }

  return [entry];
}

function assertNoDevScaffoldTerms(files) {
  for (const file of files) {
    const source = fs.readFileSync(file, 'utf8');
    const lineStarts = [0];
    for (let index = 0; index < source.length; index += 1) {
      if (source[index] === '\n') {
        lineStarts.push(index + 1);
      }
    }

    for (const term of devScaffoldTerms) {
      const matchIndex = source.toLowerCase().indexOf(term.toLowerCase());
      if (matchIndex === -1) {
        continue;
      }
      const line = lineStarts.filter((start) => start <= matchIndex).length;
      throw new Error(
        `mobile shell production source must not include ${term}: ${file.pathname}:${line}`,
      );
    }
  }
}

function countAlphaPixels(png) {
  let transparent = 0;
  let translucent = 0;
  let opaque = 0;
  for (let index = 3; index < png.data.length; index += 4) {
    const alpha = png.data[index];
    if (alpha === 0) {
      transparent += 1;
    } else if (alpha === 255) {
      opaque += 1;
    } else {
      translucent += 1;
    }
  }

  return { transparent, translucent, opaque };
}

function assertSameList(actual, expected, label) {
  if (
    actual.length !== expected.length ||
    actual.some((value, index) => value !== expected[index])
  ) {
    throw new Error(
      `${label} drifted: expected ${expected.join(', ')} but got ${actual.join(', ')}`,
    );
  }
}

assertNoDevScaffoldTerms(
  productionSourceRoots.flatMap((root) => collectProductionSourceFiles(root)),
);
assertNoBlockedMobileChannelDependencies(packageConfig, 'mobile shell package');
assertNoBlockedMobileChannelDependencies(rootPackageConfig, 'root H5 package');
assertNoBlockedMobileChannelLockPackages();
assertNoBlockedMobileChannelSnippets();

for (const [scriptName, expected] of Object.entries({
  dev: 'expo start',
  android: 'expo run:android',
  ios: 'expo run:ios',
  test: 'vitest run -c vitest.config.ts',
  'config:smoke': 'node scripts/check-expo-config.mjs',
  'export:smoke': 'node scripts/check-expo-export.mjs',
  typecheck: 'tsc -p tsconfig.json --noEmit && node scripts/check-config.mjs',
})) {
  assertPackageScript(packageConfig, 'mobile shell package', scriptName, expected);
}

for (const [scriptName, expected] of Object.entries({
  'mobile-shell:dev': 'npm --prefix apps/mobile-shell run dev',
  'mobile-shell:typecheck': 'npm --prefix apps/mobile-shell run typecheck',
  'mobile-shell:test': 'npm --prefix apps/mobile-shell run test',
  'mobile-shell:config': 'npm --prefix apps/mobile-shell run config:smoke',
  'mobile-shell:export': 'npm --prefix apps/mobile-shell run export:smoke',
})) {
  assertPackageScript(rootPackageConfig, 'root package', scriptName, expected);
}

for (const [dependency, expected] of Object.entries({
  '@expo/metro-runtime': '^56.0.15',
  expo: '^56.0.12',
  'expo-clipboard': '^56.0.4',
  'expo-document-picker': '^56.0.4',
  'expo-file-system': '^56.0.8',
  'expo-haptics': '^56.0.3',
  'expo-image-picker': '^56.0.18',
  'expo-linking': '^56.0.14',
  'expo-network': '^56.0.5',
  'expo-notifications': '^56.0.18',
  'expo-sharing': '^56.0.18',
  'expo-status-bar': '^56.0.4',
  react: '^19.0.0',
  'react-native': '^0.86.0',
  'react-native-safe-area-context': '^5.8.0',
  'react-native-webview': '^13.16.1',
})) {
  assertPackageDependencyVersion(
    packageConfig,
    'mobile shell package',
    'dependencies',
    dependency,
    expected,
  );
  assertPackageDependencyVersion(
    rootPackageConfig,
    'root package',
    'dependencies',
    dependency,
    expected,
  );
}

for (const [dependency, expected] of Object.entries({
  '@expo/metro-runtime': '56.0.15',
  expo: '56.0.12',
  'expo-clipboard': '56.0.4',
  'expo-document-picker': '56.0.4',
  'expo-file-system': '56.0.8',
  'expo-haptics': '56.0.3',
  'expo-image-picker': '56.0.18',
  'expo-linking': '56.0.14',
  'expo-network': '56.0.5',
  'expo-notifications': '56.0.18',
  'expo-sharing': '56.0.18',
  'expo-status-bar': '56.0.4',
  react: '19.2.4',
  'react-native': '0.86.0',
  'react-native-safe-area-context': '5.8.0',
  'react-native-webview': '13.16.1',
})) {
  assertPackageLockVersion(dependency, expected);
}

for (const [dependency, expected] of Object.entries({
  typescript: '~5.8.2',
  vitest: '^0.34.6',
})) {
  assertPackageDependencyVersion(
    packageConfig,
    'mobile shell package',
    'devDependencies',
    dependency,
    expected,
  );
  assertPackageDependencyVersion(
    rootPackageConfig,
    'root package',
    'devDependencies',
    dependency,
    expected,
  );
}

for (const [dependency, expected] of Object.entries({
  typescript: '5.8.3',
  vitest: '0.34.6',
})) {
  assertPackageLockVersion(dependency, expected);
}

const sharedCapabilities = extractStringArrayExport(
  sharedContractSource,
  'HOST_BRIDGE_CAPABILITIES',
);
const sharedMethods = extractStringArrayExport(
  sharedContractSource,
  'HOST_BRIDGE_METHODS',
);
const handledMobileMethods = extractMobileBridgeHandledMethods(dispatchSource);
const mobileCapabilities = extractStringArrayExport(
  hostBridgeSource,
  'MOBILE_HOST_CAPABILITIES',
);
const iosMobileCapabilities = extractStringArrayExport(
  hostBridgeSource,
  'IOS_MOBILE_HOST_CAPABILITIES',
);
const mobileCapabilitySet = new Set(mobileCapabilities);
const iosMobileCapabilitySet = new Set(iosMobileCapabilities);
const sdkBackedCapabilities = ['auth.requestLogin', 'payment.request'];
const unknownHandledMobileMethods = handledMobileMethods.filter(
  (method) => !sharedMethods.includes(method),
);
if (unknownHandledMobileMethods.length > 0) {
  throw new Error(
    `mobile shell handles unknown HostBridge methods: ${unknownHandledMobileMethods.join(', ')}`,
  );
}

const unknownMobileCapabilities = mobileCapabilities.filter(
  (capability) => !sharedCapabilities.includes(capability),
);
if (unknownMobileCapabilities.length > 0) {
  throw new Error(
    `mobile shell declares unknown HostBridge capabilities: ${unknownMobileCapabilities.join(', ')}`,
  );
}

const unknownIosMobileCapabilities = iosMobileCapabilities.filter(
  (capability) => !sharedCapabilities.includes(capability),
);
if (unknownIosMobileCapabilities.length > 0) {
  throw new Error(
    `iOS mobile shell declares unknown HostBridge capabilities: ${unknownIosMobileCapabilities.join(', ')}`,
  );
}

for (const capability of sdkBackedCapabilities) {
  if (
    mobileCapabilitySet.has(capability) ||
    iosMobileCapabilitySet.has(capability)
  ) {
    throw new Error(
      `mobile shell must not declare ${capability} until a real SDK/channel flow is implemented`,
    );
  }
}

const missingMobileMethodHandlers = iosMobileCapabilities.filter(
  (capability) =>
    sharedMethods.includes(capability) &&
    !handledMobileMethods.includes(capability),
);
if (missingMobileMethodHandlers.length > 0) {
  throw new Error(
    `mobile shell declares request capabilities without HostBridge handlers: ${missingMobileMethodHandlers.join(', ')}`,
  );
}

const undeclaredMobileMethodHandlers = handledMobileMethods.filter(
  (method) =>
    !iosMobileCapabilitySet.has(method) && !sdkBackedCapabilities.includes(method),
);
if (undeclaredMobileMethodHandlers.length > 0) {
  throw new Error(
    `mobile shell handles unadvertised HostBridge methods: ${undeclaredMobileMethodHandlers.join(', ')}`,
  );
}

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

if (appConfig.name !== 'Genarrative') {
  throw new Error('mobile shell app name must be Genarrative');
}

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

if (appConfig.version !== '0.1.0') {
  throw new Error('mobile shell app version must be 0.1.0');
}

const mobileHostVersion = extractStringConstExport(
  runtimeSource,
  'MOBILE_SHELL_HOST_VERSION',
);
if (mobileHostVersion !== appConfig.version) {
  throw new Error('mobile shell HostBridge host version must match app.json version');
}

if (appConfig.orientation !== 'default') {
  throw new Error('mobile shell must allow device orientation for landscape-capable H5 games');
}

if (packageConfig.version !== appConfig.version) {
  throw new Error('mobile shell package version must match app.json version');
}

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

if (appConfig.userInterfaceStyle !== 'automatic') {
  throw new Error('mobile shell must follow the native system appearance setting');
}

assertSameList(
  appConfig.assetBundlePatterns ?? [],
  ['**/*'],
  'mobile shell asset bundle patterns',
);

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

const iconAlpha = countAlphaPixels(icon);
if (iconAlpha.transparent === 0 || iconAlpha.opaque === 0) {
  throw new Error('mobile shell adaptive icon foreground must use the real transparent brand asset');
}

if (
  appConfig.splash?.image !== './assets/icon.png' ||
  appConfig.splash?.resizeMode !== 'contain' ||
  appConfig.splash?.backgroundColor !== brandBackgroundColor
) {
  throw new Error('mobile shell splash must use the real brand icon and brand background');
}

if (appConfig.updates?.enabled !== false) {
  throw new Error('mobile shell OTA updates must stay disabled until a real release channel exists');
}

if (Object.keys(appConfig.updates ?? {}).some((key) => key !== 'enabled')) {
  throw new Error('mobile shell must not configure OTA update metadata without a real release channel');
}

if ('runtimeVersion' in appConfig) {
  throw new Error('mobile shell must not configure runtimeVersion without a real OTA release channel');
}

if ('releaseChannel' in appConfig || 'channel' in appConfig) {
  throw new Error('mobile shell must not configure an app release channel without a real release process');
}

assertSameList(
  appConfig.ios?.associatedDomains ?? [],
  ['applinks:app.genarrative.world'],
  'mobile shell iOS associated domains',
);

if (appConfig.ios?.bundleIdentifier !== 'world.genarrative.mobile') {
  throw new Error('mobile shell iOS bundle identifier must be world.genarrative.mobile');
}

if (appConfig.ios?.buildNumber !== '1') {
  throw new Error('mobile shell iOS build number must start at 1');
}

if (appConfig.ios?.infoPlist?.ITSAppUsesNonExemptEncryption !== false) {
  throw new Error('mobile shell iOS encryption export flag must be explicit');
}

if (
  appConfig.ios?.infoPlist?.NSAppTransportSecurity?.NSAllowsArbitraryLoads !== false
) {
  throw new Error('mobile shell iOS ATS must not allow arbitrary network loads');
}

if (appConfig.android?.package !== 'world.genarrative.mobile') {
  throw new Error('mobile shell Android package must be world.genarrative.mobile');
}

if (appConfig.android?.versionCode !== 1) {
  throw new Error('mobile shell Android versionCode must start at 1');
}

if (appConfig.android?.usesCleartextTraffic !== false) {
  throw new Error('mobile shell Android package must disable cleartext traffic');
}

if (appConfig.android?.allowBackup !== false) {
  throw new Error('mobile shell Android package must disable app data backup');
}

if (appConfig.android?.softwareKeyboardLayoutMode !== 'resize') {
  throw new Error('mobile shell Android keyboard layout must resize the WebView');
}

for (const permission of blockedAndroidPermissions) {
  if (!appConfig.android?.blockedPermissions?.includes(permission)) {
    throw new Error(`mobile shell Android package must block ${permission}`);
  }
}

for (const permission of blockedAndroidPermissions) {
  if (appConfig.android?.permissions?.includes(permission)) {
    throw new Error(`mobile shell Android package must not request ${permission}`);
  }
}

if (appConfig.android?.permissions && appConfig.android.permissions.length > 0) {
  throw new Error('mobile shell Android package must not request explicit permissions by default');
}

if (
  appConfig.android?.adaptiveIcon?.foregroundImage !== './assets/icon.png' ||
  appConfig.android?.adaptiveIcon?.backgroundColor !== brandBackgroundColor
) {
  throw new Error('mobile shell Android adaptive icon must use the real brand icon and brand background');
}

const androidFilters = appConfig.android?.intentFilters ?? [];
if (androidFilters.length !== 1) {
  throw new Error('mobile shell Android app link filter must be the only intent filter');
}

const [androidFilter] = androidFilters;
if (androidFilter.action !== 'VIEW' || androidFilter.autoVerify !== true) {
  throw new Error('mobile shell Android app link filter must be a verified VIEW filter');
}

assertSameList(
  androidFilter.category ?? [],
  ['BROWSABLE', 'DEFAULT'],
  'mobile shell Android app link categories',
);

const androidFilterData = androidFilter.data ?? [];
if (
  androidFilterData.length !== 1 ||
  androidFilterData[0]?.scheme !== 'https' ||
  androidFilterData[0]?.host !== 'app.genarrative.world' ||
  Object.keys(androidFilterData[0] ?? {}).some(
    (key) => key !== 'scheme' && key !== 'host',
  )
) {
  throw new Error('mobile shell Android app link data must only bind https://app.genarrative.world');
}

if (appConfig.extra?.genarrativeHostBridgeVersion !== 1) {
  throw new Error('mobile shell extra HostBridge version must be 1');
}

for (const snippet of [
  'Linking.getInitialURL()',
  "Linking.addEventListener('url'",
  'buildMobileShellUrlFromDeepLink',
  'configureMobileHostBridgeNavigation',
  'shouldAcceptMobileShellHostBridgeMessage',
  'webViewRef.current?.reload()',
  'const reloadCurrentWebView = useCallback(() => {',
  'reloadWebView: reloadCurrentWebView',
  'onContentProcessDidTerminate={reloadCurrentWebView}',
  'onRenderProcessGone={reloadCurrentWebView}',
  'AppState.addEventListener',
  'app.lifecycle',
  'network.statusChanged',
  'getMobileNetworkStatus',
  'subscribeMobileNetworkStatus',
  'injectHostBridgeEvent',
  'injectLifecycleEvent',
  'injectNetworkStatusEvent',
  'handleWebViewLoad',
  'onLoad={handleWebViewLoad}',
  'navigation.canGoBack',
  'buildHostBridgeMessageScript',
  'origin: window.location.origin',
  'source: window',
  'BLOCK_WEBVIEW_DOWNLOAD_SCRIPT',
  'SafeAreaProvider',
  'SafeAreaView',
  'MOBILE_SHELL_SAFE_AREA_EDGES',
  'resolveMobileShellBaseWebUrl',
  'javaScriptCanOpenWindowsAutomatically={false}',
  'mixedContentMode="never"',
  'allowFileAccess={false}',
  'allowFileAccessFromFileURLs={false}',
  'allowUniversalAccessFromFileURLs={false}',
  'allowsFullscreenVideo',
  'allowsInlineMediaPlayback',
  'mediaPlaybackRequiresUserAction',
  'thirdPartyCookiesEnabled={false}',
  'sharedCookiesEnabled={false}',
  'webviewDebuggingEnabled={false}',
  'injectedJavaScriptBeforeContentLoaded={BLOCK_WEBVIEW_DOWNLOAD_SCRIPT}',
  'onFileDownload={() => undefined}',
  'setSupportMultipleWindows={false}',
]) {
  if (!shellAppSource.includes(snippet)) {
    throw new Error(`mobile shell ShellApp missing ${snippet}`);
  }
}

if (!appSource.includes("import ShellApp from './src/shell/ShellApp';")) {
  throw new Error('mobile shell App must import the shell app facade');
}

if (!appSource.includes('return <ShellApp />;')) {
  throw new Error('mobile shell App must only render the shell app facade');
}

if (appSource.includes('./src/host-bridge/')) {
  throw new Error('mobile shell App must not import HostBridge directly');
}

if (
  shellAppSource.includes('process.env.EXPO_PUBLIC_GENARRATIVE_WEB_URL ||')
) {
  throw new Error(
    'mobile shell ShellApp must normalize EXPO_PUBLIC_GENARRATIVE_WEB_URL',
  );
}

if (
  !urlSource.includes(
    "DEFAULT_MOBILE_SHELL_WEB_URL = 'https://app.genarrative.world/'",
  )
) {
  throw new Error('mobile shell default H5 URL must point to the production web app');
}

for (const snippet of [
  "ALLOWED_PRODUCTION_WEB_ORIGIN = 'https://app.genarrative.world'",
  'LOCAL_DEVELOPMENT_WEB_HOSTS',
  "'127.0.0.1'",
  "'localhost'",
  "'[::1]'",
  'isAllowedMobileShellBaseUrl',
]) {
  if (!urlSource.includes(snippet)) {
    throw new Error(`mobile shell H5 URL allowlist missing ${snippet}`);
  }
}

if (shellAppSource.includes('127.0.0.1:3000')) {
  throw new Error(
    'mobile shell ShellApp must not hard-code localhost as the default H5 URL',
  );
}

for (const dependency of [
  'expo-file-system',
  'expo-document-picker',
  'expo-image-picker',
  'expo-network',
  'expo-notifications',
  'expo-sharing',
  'react-native-safe-area-context',
]) {
  if (!packageConfig.dependencies?.[dependency]) {
    throw new Error(`mobile shell package missing ${dependency}`);
  }
}

const imagePickerPlugin = appConfig.plugins?.find((plugin) =>
  Array.isArray(plugin) ? plugin[0] === 'expo-image-picker' : plugin === 'expo-image-picker',
);
if (!imagePickerPlugin) {
  throw new Error('mobile shell image picker plugin is missing');
}

if (Array.isArray(imagePickerPlugin)) {
  const pluginOptions = imagePickerPlugin[1] ?? {};
  if (typeof pluginOptions.photosPermission !== 'string') {
    throw new Error('mobile shell image picker photo permission text is missing');
  }
  if (typeof pluginOptions.cameraPermission !== 'string') {
    throw new Error('mobile shell image picker camera permission text is missing');
  }
  if (pluginOptions.microphonePermission !== false) {
    throw new Error('mobile shell image picker must not request microphone');
  }
}

const notificationsPlugin = appConfig.plugins?.find((plugin) =>
  Array.isArray(plugin) ? plugin[0] === 'expo-notifications' : plugin === 'expo-notifications',
);
if (!notificationsPlugin) {
  throw new Error('mobile shell notifications plugin is missing');
}

if (
  appConfig.plugins?.some((plugin) =>
    Array.isArray(plugin) ? plugin[0] === 'expo-updates' : plugin === 'expo-updates',
  )
) {
  throw new Error('mobile shell must not install expo-updates without a real release channel');
}

if (Array.isArray(notificationsPlugin)) {
  const pluginOptions = notificationsPlugin[1] ?? {};
  if (pluginOptions.enableBackgroundRemoteNotifications !== false) {
    throw new Error('mobile shell must not enable background remote notifications');
  }
}

for (const forbiddenNotificationSnippet of [
  'getExpoPushTokenAsync',
  'getDevicePushTokenAsync',
  'addPushTokenListener',
  'addNotificationResponseReceivedListener',
  ...blockedScheduledNotificationSnippets,
]) {
  if (hostBridgeSource.includes(forbiddenNotificationSnippet)) {
    throw new Error(
      `mobile shell must not register remote or background notification flow: ${forbiddenNotificationSnippet}`,
    );
  }
}

if (
  !/trigger:\s*Platform\.OS === 'android'\s*\?\s*\{\s*channelId: LOCAL_NOTIFICATION_CHANNEL_ID\s*\}\s*:\s*null/.test(
    dispatchSource,
  )
) {
  throw new Error('mobile shell local notifications must stay immediate and channel-only');
}

for (const snippet of [
  'file.exportText',
  'file.importText',
  'file.exportImage',
  'file.importImage',
  'file.captureImage',
  'file.importAudio',
  'file.exportAudio',
  'clipboard.readText',
  'notification.showLocal',
  'network.status',
  'app.reloadWebView',
  'getMobileNetworkStatus',
  'Notifications.scheduleNotificationAsync',
  'Notifications.setNotificationChannelAsync',
  'Notifications.getPermissionsAsync',
  'Notifications.requestPermissionsAsync',
  'Sharing.shareAsync',
  'DocumentPicker.getDocumentAsync',
  'Clipboard.getStringAsync',
  'ImagePicker.launchImageLibraryAsync',
  'ImagePicker.launchCameraAsync',
  'ImagePicker.requestMediaLibraryPermissionsAsync',
  'ImagePicker.requestCameraPermissionsAsync',
  'File(asset.uri)',
  'file.base64()',
  'normalizeHostBridgeExportFileName',
  'normalizeHostBridgeClipboardText',
  'normalizeHostBridgeHapticsImpactStyle',
  'base64Data',
  'isHostBridgeMethod',
  'normalizeHostBridgeRequestId',
  'HOST_BRIDGE_RESPONSE_CACHE_MAX',
  'completedHostBridgeResponses',
  'inFlightHostBridgeResponses',
  'resolveMobileHostBridgeResponse',
  'rememberHostBridgeResponse',
]) {
  if (!hostBridgeSource.includes(snippet)) {
    throw new Error(`mobile shell HostBridge missing ${snippet}`);
  }
}

const capabilityQuerySnippet = "capabilities: MOBILE_HOST_CAPABILITIES";
if (shellAppSource.includes(capabilityQuerySnippet)) {
  throw new Error('mobile shell URL must resolve platform-aware capabilities');
}

if (!shellAppSource.includes('capabilities: resolveMobileHostCapabilities()')) {
  throw new Error('mobile shell URL must use resolveMobileHostCapabilities()');
}

if (!shellAppSource.includes('hostVersion: MOBILE_SHELL_HOST_VERSION')) {
  throw new Error('mobile shell URL must use the shared mobile shell host version');
}

if (!dispatchSource.includes('hostVersion: MOBILE_SHELL_HOST_VERSION')) {
  throw new Error('mobile shell runtime response must use the shared mobile shell host version');
}

if (
  shellAppSource.includes("hostVersion: '0.1.0'") ||
  hostBridgeSource.includes("hostVersion: '0.1.0'")
) {
  throw new Error('mobile shell HostBridge version must not be duplicated in app or bridge source');
}

for (const capability of sdkBackedCapabilities) {
  if (
    shellAppSource.includes(`'${capability}'`) ||
    shellAppSource.includes(`"${capability}"`)
  ) {
    throw new Error(
      `mobile shell URL must not advertise ${capability} without a real SDK/channel flow`,
    );
  }
}

for (const capability of [
  'host.getRuntime',
  'appearance.getColorScheme',
  'share.open',
  'share.setTarget',
  'app.lifecycle',
  'network.status',
  'network.statusChanged',
  'navigation.openNativePage',
  'navigation.canGoBack',
  'app.reloadWebView',
  'app.openExternalUrl',
  'clipboard.writeText',
  'clipboard.readText',
  'file.exportText',
  'file.importText',
  'file.exportImage',
  'file.importImage',
  'file.captureImage',
  'file.importAudio',
  'file.exportAudio',
  'haptics.impact',
  'notification.showLocal',
]) {
  if (!mobileCapabilitySet.has(capability)) {
    throw new Error(`mobile shell capabilities missing ${capability}`);
  }
}

if (!iosMobileCapabilitySet.has('app.setBadgeCount')) {
  throw new Error('iOS mobile shell capabilities missing app.setBadgeCount');
}

if (mobileCapabilitySet.has('app.setBadgeCount')) {
  throw new Error('Android mobile shell base capabilities must not include app.setBadgeCount');
}

if (!dispatchSource.includes('Appearance.getColorScheme()')) {
  throw new Error('mobile shell HostBridge must read the native color scheme');
}