// Copyright 2019 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';
import 'dart:io';
import 'package:args/args.dart';
import 'package:path/path.dart';
import 'package:yaml/yaml.dart';

// Runs all the configured tests for cocoon repo.
Future<Null> main(List<String> rawArgs) async {
  final ArgParser argParser = ArgParser()..addOption('tests-file', abbr: 't', defaultsTo: '../tests.yaml');
  final ArgResults args = argParser.parse(rawArgs);

  // Load tests yaml file.
  final File file = File(args['tests-file']);
  final doc = loadYaml(file.readAsStringSync());
  // Execute the tests
  final String baseDir = normalize(join(dirname(Platform.script.toFilePath()), '..', '..'));
  final String prepareScriptPath = join(baseDir, 'test_utilities', 'bin', 'prepare_environment.sh');
  await runShellCommand(<String>[prepareScriptPath], 'prepare environment');
  doc['tasks'].forEach((task) async {
    final String scriptPath = join(baseDir, task['script']);
    final String taskPath = join(baseDir, task['task']);
    await runShellCommand(<String>[scriptPath, taskPath], task['task']);
  });
}

Future<void> runShellCommand(List<String> args, String taskName) async {
  unawaited(
    Process.run('sh', args).then((result) {
      stdout.writeln('.. stdout ..');
      stdout.writeln(result.stdout);
      stdout.writeln('.. stderr ..');
      stderr.writeln(result.stderr);
      if (result.exitCode != 0) {
        stderr.writeln('There were failures running tests from $taskName');
        exit(result.exitCode);
      }
    }),
  );
}