import path from 'path';

import { Log } from '../../log';
import { assembleAsync, installAsync } from '../../start/platforms/android/gradle';
import { getSchemesForAndroidAsync } from '../../utils/scheme';
import { ensureNativeProjectAsync } from '../ensureNativeProject';
import { logProjectLogsLocation } from '../hints';
import { startBundlerAsync } from '../startBundler';
import { resolveInstallApkNameAsync } from './resolveInstallApkName';
import { Options, ResolvedOptions, resolveOptionsAsync } from './resolveOptions';

const debug = require('debug')('expo:run:android');

export async function runAndroidAsync(projectRoot: string, { install, ...options }: Options) {
  await ensureNativeProjectAsync(projectRoot, { platform: 'android', install });

  const props = await resolveOptionsAsync(projectRoot, options);

  debug('Package name: ' + props.packageName);
  Log.log('› Building app...');

  const androidProjectRoot = path.join(projectRoot, 'android');

  await assembleAsync(androidProjectRoot, {
    variant: props.variant,
    port: props.port,
    appName: props.appName,
    buildCache: props.buildCache,
  });

  const manager = await startBundlerAsync(projectRoot, {
    port: props.port,
    // If a scheme is specified then use that instead of the package name.
    scheme: (await getSchemesForAndroidAsync(projectRoot))?.[0],
    headless: !props.shouldStartBundler,
  });

  await installAppAsync(androidProjectRoot, props);

  await manager.getDefaultDevServer().openCustomRuntimeAsync(
    'emulator',
    {
      applicationId: props.packageName,
    },
    { device: props.device.device }
  );

  if (props.shouldStartBundler) {
    logProjectLogsLocation();
  }
}

async function installAppAsync(androidProjectRoot: string, props: ResolvedOptions) {
  // Find the APK file path
  const apkFile = await resolveInstallApkNameAsync(props.device.device, props);

  if (apkFile) {
    // Attempt to install the APK from the file path
    const binaryPath = path.join(props.apkVariantDirectory, apkFile);
    debug('Installing:', binaryPath);
    await props.device.installAppAsync(binaryPath);
  } else {
    // If we cannot resolve the APK file path then we can attempt to install using Gradle.
    // This offers more advanced resolution that we may not have first class support for.
    Log.log('› Failed to locate binary file, installing with Gradle...');
    await installAsync(androidProjectRoot, {
      variant: props.variant ?? 'debug',
      appName: props.appName ?? 'app',
      port: props.port,
    });
  }
}