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from webkitpy.common.memoized import memoized
from webkitpy.layout_tests.models.test_configuration import TestConfiguration
from webkitpy.port.base import Port
from webkitpy.port.headlessdriver import HeadlessDriver
from webkitpy.port.linux_get_crash_log import GDBCrashLogGenerator
from webkitpy.port.waylanddriver import WaylandDriver


class WPEPort(Port):
    port_name = "wpe"

    def __init__(self, *args, **kwargs):
        super(WPEPort, self).__init__(*args, **kwargs)

        self._display_server = self.get_option("display_server")
        if self._should_use_jhbuild():
            self._jhbuild_wrapper = [self.path_from_webkit_base('Tools', 'jhbuild', 'jhbuild-wrapper'), '--wpe', 'run']
            self.set_option_default('wrapper', ' '.join(self._jhbuild_wrapper))

    def default_timeout_ms(self):
        default_timeout = 15000
        # Starting an application under Valgrind takes a lot longer than normal
        # so increase the timeout (empirically 10x is enough to avoid timeouts).
        multiplier = 10 if self.get_option("leaks") else 1
        # Debug builds are slower (no compiler optimizations are used).
        if self.get_option('configuration') == 'Debug':
            multiplier *= 2
        return multiplier * default_timeout

    def _built_executables_path(self, *path):
        return self._build_path(*(('bin',) + path))

    def _built_libraries_path(self, *path):
        return self._build_path(*(('lib',) + path))

    def _port_flag_for_scripts(self):
        return "--wpe"

    @memoized
    def _driver_class(self):
        return WaylandDriver

    def setup_environ_for_server(self, server_name=None):
        environment = super(WPEPort, self).setup_environ_for_server(server_name)
        environment['G_DEBUG'] = 'fatal-criticals'
        environment['GSETTINGS_BACKEND'] = 'memory'
        environment['TEST_RUNNER_INJECTED_BUNDLE_FILENAME'] = self._build_path('lib', 'libTestRunnerInjectedBundle.so')
        environment['TEST_RUNNER_TEST_PLUGIN_PATH'] = self._build_path('lib', 'plugins')
        environment['WEBKIT_EXEC_PATH'] = self._build_path('bin')
        return environment

    def check_sys_deps(self, needs_http):
        return super(WPEPort, self).check_sys_deps(needs_http) and self._driver_class().check_driver(self)

    def _generate_all_test_configurations(self):
        configurations = []
        for build_type in self.ALL_BUILD_TYPES:
            configurations.append(TestConfiguration(version=self.version_name(), architecture='x86', build_type=build_type))
        return configurations

    def _path_to_driver(self):
        return self._built_executables_path(self.driver_name())

    def _path_to_image_diff(self):
        return self._built_executables_path('ImageDiff')

    def _search_paths(self):
        return [self.port_name, 'wk2'] + self.get_option("additional_platform_directory", [])

    def default_baseline_search_path(self):
        return map(self._webkit_baseline_path, self._search_paths())

    def _port_specific_expectations_files(self):
        return map(lambda x: self._filesystem.join(self._webkit_baseline_path(x), 'TestExpectations'), reversed(self._search_paths()))

    def test_expectations_file_position(self):
        # WPE port baseline search path is wpe -> wk2 -> generic, so port test expectations file is at third to last position.
        return 2

    def _get_crash_log(self, name, pid, stdout, stderr, newer_than, target_host=None):
        return GDBCrashLogGenerator(name, pid, newer_than, self._filesystem, self._path_to_driver).generate_crash_log(stdout, stderr)