#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# (C) 2014 tchvatal@suse.cz, openSUSE.org
# Distribute under GPLv2 or later

import os
import contextlib
import unittest
import httpretty
# mock is part of python3.3
try:
    import unittest.mock
except ImportError:
    import mock

import oscs
import osc


class TestApiCalls(unittest.TestCase):
    """
    Tests for various api calls to ensure we return expected content
    """

    def _get_fixtures_dir(self):
        """
        Return path for fixtures
        """
        return os.path.join(os.getcwd(), 'tests/fixtures')

    def _register_pretty_url_get(self, url, filename):
        """
        Register specified get url with specific filename in fixtures
        :param url: url address to "open"
        :param filename: name of the fixtures file
        """

        response = open(os.path.join(self._get_fixtures_dir(), filename), 'r')
        content = response.read()
        response.close()

        httpretty.register_uri(httpretty.GET,
                               url,
                               body=content)


    def _register_pretty_url_post(self, url, filename):
        """
        Register specified post url with specific filename in fixtures
        :param url: url address to "open"
        :param filename: name of the fixtures file
        """

        response = open(os.path.join(self._get_fixtures_dir(), filename), 'r')
        content = response.read()
        response.close()

        httpretty.register_uri(httpretty.POST,
                               url,
                               body=content)

    def setUp(self):
        """
        Initialize the configuration so the osc is happy
        """

        oscrc = os.path.join(self._get_fixtures_dir(), 'oscrc')
        osc.core.conf.get_config(override_conffile=oscrc,
                                 override_no_keyring=True,
                                 override_no_gnome_keyring=True)
        os.environ['OSC_CONFIG'] = oscrc

    @httpretty.activate
    def test_ring_packages(self):
        """
        Validate the creation of the rings.
        """

        # our content in the XML files
        ring_packages = {
            'elem-ring-0': 'openSUSE:Factory:Rings:0-Bootstrap',
            'elem-ring-1': 'openSUSE:Factory:Rings:1-MinimalX',
        }

        # Initiate the pretty overrides
        self._register_pretty_url_get('http://localhost/source/openSUSE:Factory:Rings:0-Bootstrap',
                                      'ring-0-project.xml')
        self._register_pretty_url_get('http://localhost/source/openSUSE:Factory:Core',
                                      'ring-1-project.xml')

        # Create the api object
        with mock_generate_ring_packages():
            api = oscs.StagingApi('http://localhost')
        self.assertEqual(ring_packages, api.ring_packages)

    @httpretty.activate
    def test_dispatch_open_requests(self):
        """
        Test dispatching and closure of non-ring packages
        """

        # Initiate the pretty overrides
        self._register_pretty_url_get('http://localhost/search/request?match=state/@name=\'review\'+and+review[@by_group=\'factory-staging\'+and+@state=\'new\']',
                                      'open-requests.xml')

        # There should be just one request that gets closed
        # We don't care about the return so just reuse the above :P
        # If there is bug in the function we get assertion about closing more issues than we should
        self._register_pretty_url_post('http://localhost/request/220956?comment=No+need+for+staging%2C+not+in+tested+ring+project.&newstate=accepted&by_group=factory-staging&cmd=changereviewstate',
                                      'open-requests.xml')
        self._register_pretty_url_post('http://localhost/request/221625?comment=No+need+for+staging%2C+not+in+tested+ring+project.&newstate=accepted&by_group=factory-staging&cmd=changereviewstate',
                                      'open-requests.xml')

        # Initiate the api with mocked rings
        with mock_generate_ring_packages():
            api = oscs.StagingApi('http://localhost')

        # get the open requests
        requests = api.dispatch_open_requests()

    @httpretty.activate
    def test_pseudometa_get_prj(self):
        """
        Test getting project metadata from YAML in project description
        """
        rq = { 'id': '123', 'package': 'test-package' }

        # Initiate the pretty overrides
        self._register_pretty_url_get('http://localhost/source/openSUSE:Factory:Staging:test/_meta',
                                      'staging-project-meta.xml')

        # Initiate the api with mocked rings
        with mock_generate_ring_packages():
            api = oscs.StagingApi('http://localhost')

        # Ensure the output is equal to what we expect
        data = api.get_prj_pseudometa('openSUSE:Factory:Staging:test')
        for i in rq.keys():
            self.assertEqual(rq[i],data['requests'][0][i])

    @httpretty.activate
    def test_list_projects(self):
        """
        List projects and their content
        """

        prjlist = [
            'openSUSE:Factory:Staging:A',
            'openSUSE:Factory:Staging:B',
            'openSUSE:Factory:Staging:C',
            'openSUSE:Factory:Staging:D'
        ]

        # Initiate the pretty overrides
        self._register_pretty_url_get('http://localhost/search/project/id?match=starts-with(@name,\'openSUSE:Factory:Staging:\')',
                                      'staging-project-list.xml')

        # Initiate the api with mocked rings
        with mock_generate_ring_packages():
            api = oscs.StagingApi('http://localhost')

        # Compare the results
        self.assertEqual(prjlist,
                        api.get_staging_projects())

    @httpretty.activate
    def test_open_requests(self):
        """
        List projects and their content
        """

        requests = []

        # Initiate the pretty overrides
        self._register_pretty_url_get('http://localhost/search/request?match=state/@name=\'review\'+and+review[@by_group=\'factory-staging\'+and+@state=\'new\']',
                                      'open-requests.xml')

        # Initiate the api with mocked rings
        with mock_generate_ring_packages():
            api = oscs.StagingApi('http://localhost')

        # get the open requests
        requests = api.get_open_requests()
        count = len(requests)

        # Compare the results, we only care now that we got 2 of them not the content
        self.assertEqual(2, count)


# Here place all mockable functions
@contextlib.contextmanager
def mock_generate_ring_packages():
    with mock.patch('oscs.StagingApi._generate_ring_packages', return_value={
            'elem-ring-0': 'openSUSE:Factory:Rings:0-Bootstrap',
            'elem-ring-1': 'openSUSE:Factory:Rings:1-MinimalX'}):
        yield