// Copyright 2015-present 650 Industries. All rights reserved.

'use strict';

import fs from 'fs-extra';
import path from 'path';
import rimraf from 'rimraf';
import { getManifestAsync, spawnAsync, spawnAsyncThrowError } from './ExponentTools';

import * as IosNSBundle from './IosNSBundle';
import * as IosWorkspace from './IosWorkspace';
import StandaloneBuildFlags from './StandaloneBuildFlags';
import StandaloneContext from './StandaloneContext';

function _validateCLIArgs(args) {
  args.type = args.type || 'archive';
  args.configuration = args.configuration || 'Release';
  args.verbose = args.verbose || false;

  switch (args.type) {
    case 'simulator': {
      if (args.configuration !== 'Debug' && args.configuration !== 'Release') {
        throw new Error(`Unsupported build configuration ${args.configuration}`);
      }
      break;
    }
    case 'archive': {
      if (args.configuration !== 'Release') {
        throw new Error('Release is the only supported configuration when archiving');
      }
      break;
    }
    default: {
      throw new Error(`Unsupported build type ${args.type}`);
    }
  }

  switch (args.action) {
    case 'configure': {
      if (!args.url) {
        throw new Error('Must run with `--url MANIFEST_URL`');
      }
      if (!args.sdkVersion) {
        throw new Error('Must run with `--sdkVersion SDK_VERSION`');
      }
      if (!args.archivePath) {
        throw new Error(
          'Need to provide --archivePath <path to existing archive for configuration>'
        );
      }
      break;
    }
    case 'build': {
      break;
    }
    default: {
      throw new Error(`Unsupported build action ${args.action}`);
    }
  }

  return args;
}

/**
 *  Build the iOS workspace at the given path.
 *  @return the path to the resulting build artifact
 */
async function _buildAsync(
  projectName,
  workspacePath,
  configuration,
  type,
  relativeBuildDestination,
  verbose
) {
  let buildCmd, pathToArtifact;
  const buildDest = `${relativeBuildDestination}-${type}`;
  if (type === 'simulator') {
    buildCmd = `xcodebuild -workspace ${projectName}.xcworkspace -scheme ${projectName} -sdk iphonesimulator -configuration ${configuration} -derivedDataPath ${buildDest} CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO ARCHS="i386 x86_64" ONLY_ACTIVE_ARCH=NO | xcpretty`;
    pathToArtifact = path.join(
      buildDest,
      'Build',
      'Products',
      `${configuration}-iphonesimulator`,
      `${projectName}.app`
    );
  } else if (type === 'archive') {
    buildCmd = `xcodebuild -workspace ${projectName}.xcworkspace -scheme ${projectName} -sdk iphoneos -destination generic/platform=iOS -configuration ${configuration} archive -derivedDataPath ${buildDest} -archivePath ${buildDest}/${projectName}.xcarchive CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO | xcpretty`;
    pathToArtifact = path.join(buildDest, `${projectName}.xcarchive`);
  } else {
    throw new Error(`Unsupported build type: ${type}`);
  }

  console.log(`Building iOS workspace at ${workspacePath} to ${buildDest}:\n`);
  console.log(buildCmd);
  if (!verbose) {
    console.log(
      '\nxcodebuild is running. Logging errors only. To see full output, use --verbose 1...'
    );
  }
  await spawnAsyncThrowError(buildCmd, null, {
    // only stderr
    stdio: verbose ? 'inherit' : ['ignore', 'ignore', 'inherit'],
    cwd: workspacePath,
    shell: true,
  });
  return path.resolve(workspacePath, pathToArtifact);
}

async function _podInstallAsync(workspacePath, isRepoUpdateEnabled) {
  // ensure pods are clean
  const pathsToClean = [path.join(workspacePath, 'Pods'), path.join(workspacePath, 'Podfile.lock')];
  pathsToClean.forEach(path => {
    if (fs.existsSync(path)) {
      rimraf.sync(path);
    }
  });

  // install
  let cocoapodsArgs = ['install'];
  if (isRepoUpdateEnabled) {
    cocoapodsArgs.push('--repo-update');
  }
  console.log('Installing iOS workspace dependencies...');
  console.log(`pod ${cocoapodsArgs.join(' ')}`);
  await spawnAsyncThrowError('pod', cocoapodsArgs, {
    stdio: 'inherit',
    cwd: workspacePath,
  });
}

async function _createStandaloneContextAsync(args) {
  // right now we only ever build a single detached workspace for service contexts.
  // TODO: support multiple different pod configurations, assemble a cache of those builds.
  const expoSourcePath = '../ios';
  const workspaceSourcePath = path.join(
    expoSourcePath,
    '..',
    'shellAppWorkspaces',
    'ios',
    'default'
  );
  let { privateConfigFile } = args;

  let privateConfig;
  if (privateConfigFile) {
    let privateConfigContents = await fs.readFile(privateConfigFile, 'utf8');
    privateConfig = JSON.parse(privateConfigContents);
  }

  let manifest;
  if (args.action === 'configure') {
    const { url, sdkVersion, releaseChannel } = args;
    manifest = await getManifestAsync(url, {
      'Exponent-SDK-Version': sdkVersion,
      'Exponent-Platform': 'ios',
      'Expo-Release-Channel': releaseChannel ? releaseChannel : 'default',
    });
  }

  const buildFlags = StandaloneBuildFlags.createIos(args.configuration, {
    workspaceSourcePath,
    appleTeamId: args.appleTeamId,
  });
  const context = StandaloneContext.createServiceContext(
    expoSourcePath,
    args.archivePath,
    manifest,
    privateConfig,
    buildFlags,
    args.url,
    args.releaseChannel
  );
  return context;
}

/**
 * possible args:
 *  @param url manifest url for shell experience
 *  @param sdkVersion sdk to use when requesting the manifest
 *  @param releaseChannel channel to pull manifests from, default is 'default'
 *  @param archivePath path to existing NSBundle to configure
 *  @param privateConfigFile path to a private config file containing, e.g., private api keys
 *  @param appleTeamId Apple Developer's account Team ID
 *  @param output specify the output path of the configured archive (ie) /tmp/my-app-archive-build.xcarchive or /tmp/my-app-ios-build.tar.gz
*/
async function _configureAndCopyShellAppArchiveAsync(args) {
  const { output, type } = args;
  const context = await _createStandaloneContextAsync(args);
  const { projectName } = IosWorkspace.getPaths(context);

  await IosNSBundle.configureAsync(context);
  if (output) {
    // TODO: un-hard-code ExpoKitApp.app
    const archiveName = projectName.replace(/[^0-9a-z_\-\.]/gi, '_');
    const appReleasePath = path.resolve(path.join(`${context.data.archivePath}`, '..'));
    if (type === 'simulator') {
      await spawnAsync(
        `mv ExpoKitApp.app ${archiveName}.app && tar -czvf ${output} ${archiveName}.app`,
        null,
        {
          stdio: 'inherit',
          cwd: appReleasePath,
          shell: true,
        }
      );
    } else if (type === 'archive') {
      await spawnAsync('/bin/mv', [`ExpoKitApp.xcarchive`, output], {
        stdio: 'inherit',
        cwd: `${context.data.archivePath}/../../../..`,
      });
    }
  }
}

async function _createShellAppWorkspaceAsync(context, skipRepoUpdate) {
  if (fs.existsSync(context.build.ios.workspaceSourcePath)) {
    console.log(`Removing existing workspace at ${context.build.ios.workspaceSourcePath}...`);
    try {
      rimraf.sync(context.build.ios.workspaceSourcePath);
    } catch (_) {}
  }
  await IosWorkspace.createDetachedAsync(context);
  await _podInstallAsync(context.build.ios.workspaceSourcePath, !skipRepoUpdate);
}

/**
 * possible args:
 *  @param configuration StandaloneBuildConfiguration (Debug or Release)
 *  @param verbose show all xcodebuild output (default false)
 *  @param reuseWorkspace if true, when building, assume a detached workspace already exists rather than creating a new one.
 *  @param skipRepoUpdate if true, when building, omit `--repo-update` cocoapods flag.
 */
async function _buildAndCopyShellAppArtifactAsync(args) {
  const context = await _createStandaloneContextAsync(args);
  const { verbose, type, reuseWorkspace } = args;
  const { projectName } = IosWorkspace.getPaths(context);

  if (!reuseWorkspace) {
    await _createShellAppWorkspaceAsync(context, args.skipRepoUpdate);
  }
  const pathToArtifact = await _buildAsync(
    projectName,
    context.build.ios.workspaceSourcePath,
    context.build.configuration,
    type,
    path.relative(context.build.ios.workspaceSourcePath, '../shellAppBase'),
    verbose
  );
  const artifactDestPath = path.join('../shellAppBase-builds', type, context.build.configuration);
  console.log(`\nFinished building, copying artifact to ${path.resolve(artifactDestPath)}...`);
  if (fs.existsSync(artifactDestPath)) {
    await spawnAsyncThrowError('/bin/rm', ['-rf', artifactDestPath]);
  }
  console.log(`mkdir -p ${artifactDestPath}`);
  await spawnAsyncThrowError('/bin/mkdir', ['-p', artifactDestPath]);
  console.log(`cp -R ${pathToArtifact} ${artifactDestPath}`);
  await spawnAsyncThrowError('/bin/cp', ['-R', pathToArtifact, artifactDestPath]);
}

/**
 *  possible args in addition to action-specific args:
 *  @param action
 *    build - build a binary
 *    configure - don't build anything, just configure the files in an existing NSBundle
 *  @param type type of artifact to build or configure (simulator or archive)
 */
async function createIOSShellAppAsync(args) {
  args = _validateCLIArgs(args);
  if (args.action === 'build') {
    await _buildAndCopyShellAppArtifactAsync(args);
  } else if (args.action === 'configure') {
    await _configureAndCopyShellAppArchiveAsync(args);
  }
}

export { createIOSShellAppAsync };