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import optparse
import unittest

from webkitpy.common.host_mock import MockHost
from webkitpy.common.webkit_finder import WebKitFinder
from webkitpy.layout_tests.port import android
from webkitpy.layout_tests.port import factory
from webkitpy.layout_tests.port import linux
from webkitpy.layout_tests.port import mac
from webkitpy.layout_tests.port import win


class FactoryTest(unittest.TestCase):
    """Test that the factory creates the proper port object for given combination of port_name, host.platform, and options."""
    # FIXME: The ports themselves should expose what options they require,
    # instead of passing generic "options".

    def setUp(self):
        self.webkit_options = optparse.Values({'pixel_tests': False})

    def assert_port(self, port_name=None, os_name=None, os_version=None, options=None, cls=None):
        host = MockHost(os_name=os_name, os_version=os_version)
        port = factory.PortFactory(host).get(port_name, options=options)
        self.assertIsInstance(port, cls)

    def test_mac(self):
        self.assert_port(port_name='mac', os_name='mac', os_version='mac10.11',
                         cls=mac.MacPort)

    def test_linux(self):
        self.assert_port(port_name='linux', os_name='linux', os_version='trusty',
                         cls=linux.LinuxPort)

    def test_android(self):
        self.assert_port(port_name='android', cls=android.AndroidPort)

    def test_win(self):
        self.assert_port(port_name='win-win7', cls=win.WinPort)
        self.assert_port(port_name='win-win10', cls=win.WinPort)
        self.assert_port(port_name='win', os_name='win', os_version='win7',
                         cls=win.WinPort)

    def test_unknown_specified(self):
        self.assertRaises(NotImplementedError, factory.PortFactory(MockHost()).get, port_name='unknown')

    def test_unknown_default(self):
        self.assertRaises(NotImplementedError, factory.PortFactory(MockHost(os_name='vms')).get)

    def test_get_from_builder_name(self):
        self.assertEqual(factory.PortFactory(MockHost()).get_from_builder_name('WebKit Mac10.11').name(),
                         'mac-mac10.11')

    def get_port(self, target=None, configuration=None, files=None):
        host = MockHost()
        wkf = WebKitFinder(host.filesystem)
        files = files or {}
        for path, contents in files.items():
            host.filesystem.write_text_file(wkf.path_from_chromium_base(path), contents)
        options = optparse.Values({'target': target, 'configuration': configuration})
        return factory.PortFactory(host).get(options=options)

    def test_default_target_and_configuration(self):
        port = self.get_port()
        self.assertEqual(port._options.configuration, 'Release')
        self.assertEqual(port._options.target, 'Release')

    def test_debug_configuration(self):
        port = self.get_port(configuration='Debug')
        self.assertEqual(port._options.configuration, 'Debug')
        self.assertEqual(port._options.target, 'Debug')

    def test_release_configuration(self):
        port = self.get_port(configuration='Release')
        self.assertEqual(port._options.configuration, 'Release')
        self.assertEqual(port._options.target, 'Release')

    def test_debug_target(self):
        port = self.get_port(target='Debug')
        self.assertEqual(port._options.configuration, 'Debug')
        self.assertEqual(port._options.target, 'Debug')

    def test_debug_x64_target(self):
        port = self.get_port(target='Debug_x64')
        self.assertEqual(port._options.configuration, 'Debug')
        self.assertEqual(port._options.target, 'Debug_x64')

    def test_release_x64_target(self):
        port = self.get_port(target='Release_x64')
        self.assertEqual(port._options.configuration, 'Release')
        self.assertEqual(port._options.target, 'Release_x64')

    def test_release_args_gn(self):
        port = self.get_port(target='foo', files={'out/foo/args.gn': 'is_debug = false'})
        self.assertEqual(port._options.configuration, 'Release')
        self.assertEqual(port._options.target, 'foo')

        # Also test that we handle multi-line args files properly.
        port = self.get_port(target='foo', files={'out/foo/args.gn': 'is_debug = false\nfoo = bar\n'})
        self.assertEqual(port._options.configuration, 'Release')
        self.assertEqual(port._options.target, 'foo')

        port = self.get_port(target='foo', files={'out/foo/args.gn': 'foo=bar\nis_debug=false\n'})
        self.assertEqual(port._options.configuration, 'Release')
        self.assertEqual(port._options.target, 'foo')

    def test_debug_args_gn(self):
        port = self.get_port(target='foo', files={'out/foo/args.gn': 'is_debug = true'})
        self.assertEqual(port._options.configuration, 'Debug')
        self.assertEqual(port._options.target, 'foo')

    def test_default_gn_build(self):
        port = self.get_port(target='Default', files={'out/Default/toolchain.ninja': ''})
        self.assertEqual(port._options.configuration, 'Debug')
        self.assertEqual(port._options.target, 'Default')

    def test_empty_args_gn(self):
        port = self.get_port(target='foo', files={'out/foo/args.gn': ''})
        self.assertEqual(port._options.configuration, 'Debug')
        self.assertEqual(port._options.target, 'foo')

    def test_unknown_dir(self):
        self.assertRaises(ValueError, self.get_port, target='unknown')

    def test_both_configuration_and_target_is_an_error(self):
        self.assertRaises(ValueError, self.get_port, target='Debug', configuration='Release',
                          files={'out/Debug/toolchain.ninja': ''})