// Copyright (c) 2012, 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.

library pub_tests;

import 'package:scheduled_test/scheduled_test.dart';

import '../lib/src/exit_codes.dart' as exit_codes;
import 'test_pub.dart';

final USAGE_STRING = """
    Pub is a package manager for Dart.

    Usage: pub <command> [arguments]

    Global options:
    -h, --help            Print this usage information.
        --version         Print pub version.
        --[no-]trace      Print debugging information when an error occurs.
        --verbosity       Control output verbosity.

              [all]       Show all output including internal tracing messages.
              [io]        Also show IO operations.
              [normal]    Show errors, warnings, and user messages.
              [solver]    Show steps during version resolution.

    -v, --verbose         Shortcut for "--verbosity=all".

    Available commands:
      build      Apply transformers to build a package.
      get        Get the current package's dependencies.
      help       Display help information for Pub.
      publish    Publish the current package to pub.dartlang.org.
      serve      Run a local web development server.
      upgrade    Upgrade the current package's dependencies to latest versions.
      uploader   Manage uploaders for a package on pub.dartlang.org.
      version    Print pub version.

    Use "pub help [command]" for more information about a command.
    """;

final VERSION_STRING = '''
    Pub 0.1.2+3
    ''';

main() {
  initConfig();

  integration('running pub with no command displays usage', () {
    schedulePub(args: [], output: USAGE_STRING);
  });

  integration('running pub with just --help displays usage', () {
    schedulePub(args: ['--help'], output: USAGE_STRING);
  });

  integration('running pub with just -h displays usage', () {
    schedulePub(args: ['-h'], output: USAGE_STRING);
  });

  integration('running pub with --help after command shows command usage', () {
    schedulePub(args: ['get', '--help'],
        output: '''
          Get the current package's dependencies.

          Usage: pub get
          -h, --help            Print usage information for this command.
              --[no-]offline    Use cached packages instead of accessing the network.
    ''');
  });

  integration('running pub with -h after command shows command usage', () {
    schedulePub(args: ['get', '-h'],
        output: '''
          Get the current package's dependencies.

          Usage: pub get
          -h, --help            Print usage information for this command.
              --[no-]offline    Use cached packages instead of accessing the network.
    ''');
  });

  integration('running pub with --help after a command with subcommands shows '
              'command usage', () {
    schedulePub(args: ['cache', '--help'],
        output: '''
          Work with the system cache.
          
          Usage: pub cache <subcommand>
          -h, --help    Print usage information for this command.
          
          Available subcommands:
            list   List packages in the system cache.
     ''');
  });


  integration('running pub with just --version displays version', () {
    schedulePub(args: ['--version'], output: VERSION_STRING);
  });

  integration('an unknown command displays an error message', () {
    schedulePub(args: ['quylthulg'],
        error: '''
        Could not find a command named "quylthulg".
   
        Available commands:
          build      Apply transformers to build a package.
          get        Get the current package's dependencies.
          help       Display help information for Pub.
          publish    Publish the current package to pub.dartlang.org.
          serve      Run a local web development server.
          upgrade    Upgrade the current package's dependencies to latest versions.
          uploader   Manage uploaders for a package on pub.dartlang.org.
          version    Print pub version.
        ''',
        exitCode: exit_codes.USAGE);
  });

  integration('an unknown subcommand displays an error message', () {
    schedulePub(args: ['cache', 'quylthulg'],
        error: '''
        Could not find a subcommand named "quylthulg" for "pub cache".
   
        Usage: pub cache <subcommand>
        -h, --help    Print usage information for this command.
        
        Available subcommands:
          list   List packages in the system cache.
        ''',
        exitCode: exit_codes.USAGE);
  });

  integration('an unknown option displays an error message', () {
    schedulePub(args: ['--blorf'],
        error: '''
        Could not find an option named "blorf".
        Run "pub help" to see available options.
        ''',
        exitCode: exit_codes.USAGE);
  });

  integration('an unknown command option displays an error message', () {
    // TODO(rnystrom): When pub has command-specific options, a more precise
    // error message would be good here.
    schedulePub(args: ['version', '--blorf'],
        error: '''
        Could not find an option named "blorf".
        Run "pub help" to see available options.
        ''',
        exitCode: exit_codes.USAGE);
  });

  integration('an unexpected argument displays an error message', () {
    schedulePub(args: ['version', 'unexpected'],
        error: '''
        Command "version" does not take any arguments.

        Usage: pub version
         -h, --help    Print usage information for this command.
        ''',
        exitCode: exit_codes.USAGE);
  });

  integration('a missing subcommand displays an error message', () {
    schedulePub(args: ['cache'],
        error: '''
        Missing subcommand for "pub cache".

        Usage: pub cache <subcommand>
        -h, --help    Print usage information for this command.

        Available subcommands:
          list   List packages in the system cache.
        ''',
        exitCode: exit_codes.USAGE);
  });

  group('help', () {
    integration('shows global help if no command is given', () {
      schedulePub(args: ['help'], output: USAGE_STRING);
    });

    integration('shows help for a command', () {
      schedulePub(args: ['help', 'get'],
          output: '''
            Get the current package's dependencies.

            Usage: pub get
            -h, --help            Print usage information for this command.
                --[no-]offline    Use cached packages instead of accessing the network.
            ''');
    });

    integration('shows help for a command', () {
      schedulePub(args: ['help', 'publish'],
          output: '''
            Publish the current package to pub.dartlang.org.

            Usage: pub publish [options]
            -h, --help       Print usage information for this command.
            -n, --dry-run    Validate but do not publish the package.
            -f, --force      Publish without confirmation if there are no errors.
                --server     The package server to which to upload this package.
                             (defaults to "https://pub.dartlang.org")
            ''');
    });

    integration('shows help for a subcommand', () {
      schedulePub(args: ['help', 'cache', 'list'],
          output: '''
            List packages in the system cache.

            Usage: pub cache list
            -h, --help    Print usage information for this command.
            ''');
    });

    integration('an unknown help command displays an error message', () {
      schedulePub(args: ['help', 'quylthulg'],
          error: '''
            Could not find a command named "quylthulg".
       
            Available commands:
              build      Apply transformers to build a package.
              get        Get the current package's dependencies.
              help       Display help information for Pub.
              publish    Publish the current package to pub.dartlang.org.
              serve      Run a local web development server.
              upgrade    Upgrade the current package's dependencies to latest versions.
              uploader   Manage uploaders for a package on pub.dartlang.org.
              version    Print pub version.
            ''',
            exitCode: exit_codes.USAGE);
    });

    integration('an unknown help subcommand displays an error message', () {
      schedulePub(args: ['help', 'cache', 'quylthulg'],
          error: '''
            Could not find a subcommand named "quylthulg" for "pub cache".
       
            Usage: pub cache <subcommand>
            -h, --help    Print usage information for this command.

            Available subcommands:
              list   List packages in the system cache.
            ''',
            exitCode: exit_codes.USAGE);
    });

    integration('an unexpected help subcommand displays an error message', () {
      schedulePub(args: ['help', 'version', 'badsubcommand'],
          error: '''
            Command "pub version" does not expect a subcommand.
            
            Usage: pub version
            -h, --help    Print usage information for this command.
            ''',
            exitCode: exit_codes.USAGE);
    });
  });

  group('version', () {
    integration('displays the current version', () {
      schedulePub(args: ['version'], output: VERSION_STRING);
    });
  });
}