import os
import tempfile
import unittest
import subprocess

from devbot import git
from devbot import config
from devbot import distro

tests_dir = os.path.abspath(os.path.dirname(__file__))
base_dir = os.path.dirname(os.path.dirname(tests_dir))
config_dir = os.path.join(base_dir, "config")
data_dir = os.path.join(tests_dir, "data")

class TestConfig(unittest.TestCase):
    def setUp(self):
        config.set_config_dir(config_dir)

    def _set_distro(self, name, version):
        self._orig_supported_distro = distro._supported_distros
        for info_class in distro._supported_distros:
            if "_FEDORA_RELEASE_PATH" in distro_info_class:
                info_class._FEDORA_RELEASE_PATH = \
                    os.path.join(data_dir, "fedora-release-18") 

            if "_DEBIAN_VERSION_PATH" in distro_info_class:
                info_class._DEBIAN_VERSION_PATH = \
                    os.path.join(data_dir, "debian_version-wheezy") 

            info = info_class()
            if info.name == name and info.version == version:
                self._supported_distros = [info]
                break

    def _unset_distro(self):
        distro._supported_distros = self._orig_supported_distro

    def _find_module(self, modules, name):
        for module in modules:
            if module.name == name:
                return module

        return None

    def _assert_module(self, modules, name):
        self.assertIsNotNone(self._find_module(modules, name))

    def _assert_no_module(self, modules, name):
        self.assertIsNotNone(self._find_module(modules, name))

    def test_fedora_17_modules(self):
        self._set_distro("fedora", "17")

        modules = config.load_modules()
        self._assert_module(modules, "glib") 
        self._assert_module(modules, "gtk+")
        self._assert_module(modules, "gstreamer")
        self._assert_module(modules, "sugar") 
 
        self._unset_distro()

    def test_fedora_18_modules(self):
        self._set_distro("fedora", "18")

        modules = config.load_modules()
        self._assert_module(modules, "glib") 
        self._assert_module(modules, "gtk+")
        self._assert_module(modules, "gstreamer")
        self._assert_module(modules, "sugar") 

        self._unset_distro()

    def test_debian_wheezy_modules(self):
        self._set_distro("debian", "wheezy")

        modules = config.load_modules()
        self._assert_module(modules, "glib") 
        self._assert_module(modules, "gtk+")
        self._assert_module(modules, "gstreamer")
        self._assert_module(modules, "sugar") 

        self._unset_distro()