// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// Dart2js can take a long time to compile dart code, so we increase the timeout
// to cope with that.
@Timeout.factor(3)
import 'dart:async';

import 'package:path/path.dart' as p;
import 'package:test/test.dart';

import 'package:pub/src/exit_codes.dart' as exit_codes;

import '../descriptor.dart' as d;
import '../serve/utils.dart';
import '../test_pub.dart';
import 'utils.dart';

main() {
  setUp(() async {
    await d.dir(appPath, [
      d.appPubspec(),
      d.dir('web', [
        d.file('file.txt', 'contents'),
        d.file('file.dart', 'void main() {}; void void;'),
        d.dir('subdir', [d.file('subfile.dart', 'void main() {}; void void;')])
      ])
    ]).create();

    await pubGet();
  });

  testWithCompiler("Pub build reports Dart parse errors", (compiler) async {
    var pub = await startPub(args: ["build", "--web-compiler", compiler.name]);
    await _expectErrors(pub, compiler);

    await pub.shouldExit(exit_codes.DATA);

    // Doesn't output anything if an error occurred.
    await d.dir(appPath, [
      d.dir('build', [d.nothing('web')])
    ]).validate();
  });

  testWithCompiler("Pub serve reports Dart parse errors", (compiler) async {
    var pub = await pubServe(args: ["--web-compiler", compiler.name]);

    switch (compiler) {
      case Compiler.dartDevc:
        await requestShould404('web__file.js');
        await requestShouldSucceed(
            'web__file.js.errors',
            allOf(contains('Error compiling dartdevc module'),
                contains('web/file.dart')));
        await requestShould404('web__subdir__subfile.js');
        await requestShouldSucceed(
            'web__subdir__subfile.js.errors',
            allOf(contains('Error compiling dartdevc module'),
                contains('web/subdir/subfile.dart')));
        break;
      case Compiler.dart2JS:
        await requestShould404('file.dart.js');
        await requestShould404('subdir/subfile.dart.js');
        break;
    }

    await endPubServe();
    await _expectErrors(pub, compiler, isBuild: false);
  });
}

Future _expectErrors(PubProcess pub, Compiler compiler,
    {bool isBuild = true}) async {
  if (isBuild) {
    await expectLater(
        pub.stdout, emits(startsWith("Loading source assets...")));
    await expectLater(pub.stdout, emits(startsWith("Building myapp...")));
  }

  var consumeFile;
  var consumeSubfile;
  switch (compiler) {
    case Compiler.dart2JS:
      consumeFile = emitsThrough(emitsInOrder([
        "[Error from Dart2JS]:",
        startsWith(p.join("web", "file.dart") + ":")
      ]));
      consumeSubfile = emitsThrough(emitsInOrder([
        "[Error from Dart2JS]:",
        startsWith(p.join("web", "subdir", "subfile.dart") + ":")
      ]));
      break;
    case Compiler.dartDevc:
      consumeFile = emitsThrough(emitsInOrder([
        startsWith("Error compiling dartdevc module:"),
        anything,
        contains(p.join("web", "file.dart"))
      ]));
      consumeSubfile = emitsThrough(emitsInOrder([
        startsWith("Error compiling dartdevc module:"),
        anything,
        contains(p.join("web", "subdir", "subfile.dart"))
      ]));
      break;
  }

  // It's nondeterministic what order the dart2js transformers start running,
  // so we allow the error messages to be emitted in either order.
  await expectLater(
      pub.stderr, emitsThrough(emitsInAnyOrder([consumeFile, consumeSubfile])));
}