# Copyright (c) 2012 netzguerilla.net <iro@netzguerilla.net>
# 
# This file is part of Iro.
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
# #Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

from mock import patch, Mock
from twisted.trial import unittest
import signal
import io
import ConfigParser
from functools import partial

from iro import config, error, validate 
from iro.config import OrderedDict
from iro.offer.provider import Provider, providers

class TestModuleConfig(unittest.TestCase):
    '''test config class'''
 
    def setUp(self):
        self._reloadList=config.configParser.reloadList
        config.configParser.reloadList=[]

    def tearDown(self):
        config.configParser.reloadList = self._reloadList

    @patch('iro.config.main')
    @patch('iro.config.configParser')
    def testReadConfig(self,pConfig,pMain):
        pMain._init = True
        config.readConfig()
        self.assertEqual([i[0] for i in pConfig.method_calls],["read","reload_","items"])
        pConfig.read.assert_called_once_with(config.confFiles)
        pConfig.items.assert_called_once_with("main")
        pConfig.reload_.assert_called_once_with()
        self.assertEqual(pMain.load.called,1)

    @patch('iro.config.main')
    @patch('iro.config.configParser')
    def testReadConfigInit(self,pConfig,pMain):
        pConfig.items.return_value = [('dburl',''),("port",1000)]
        pMain._init = False
        config.readConfig()
        self.assertEqual([i[0] for i in pConfig.method_calls],["read","reload_","items"])
        self.assertEqual([i[0] for i in pMain.method_calls],["same"])
        sa = pMain.same.call_args_list[0][0][0]
        self.assertEqual(sa.port,1000)
        self.assertEqual(sa.dburl,'')
        pMain.same.return_value = False
        self.assertRaises(Exception,config.readConfig,)

    @patch('iro.config.main')
    @patch('iro.config.configParser')
    def testInit(self,pConfig,pMain):
        pMain._init = False
        config.init()
        self.assertEqual([i[0] for i in pConfig.method_calls],["read", "items"])
        pConfig.read.assert_called_once_with(config.confFiles)
        pConfig.items.assert_called_once_with("main")
        self.assertEqual(pMain.load.called,1)


    @patch('signal.signal')
    @patch('iro.config.readConfig')
    def testRegisterSignal(self, pReadConfig, pSignal):
        config.registerSignal()
        self.assertEqual(pSignal.call_args[0][0],signal.SIGUSR2)
        self.assertEqual(pReadConfig.called,0)
        pSignal.call_args[0][1](None, None)
        pReadConfig.assert_called_once_with()

    def testRegisterReload(self):
        def x():
            pass
        config.configParser.registerReload(x)
        self.assertEqual(config.configParser.reloadList,[x])

    def testReload(self):
        x = Mock()
        config.configParser.reloadList = [x] 
        config.configParser.reload_()
        x.assert_called_once_with()


class TestRead(unittest.TestCase):



    def tearDown(self):
        for s in config.configParser.sections():
            config.configParser.remove_section(s)

    @patch('iro.config.ConfigParser.read')
    def testMain(self,pRead):
        sample_config = """[main]
port = 8000
dburl = sdfdsafgsfdg
"""
        config.configParser.readfp(io.BytesIO(sample_config))
        config.configParser.read([])
        pRead.assert_called_once_with(config.configParser,[])

    @patch('iro.config.ConfigParser.read')
    def testMainBadPort(self,pRead):
        sample_config = """[main]
port = -8000
dburl = sadfaserasg
"""
        config.configParser.readfp(io.BytesIO(sample_config))
        self.assertRaises(error.ValidateException, config.configParser.read, [])

    @patch('iro.config.ConfigParser.read')
    def testMainNoMust(self,pRead):
        sample_config = """[main]
port = 8000
"""
        config.configParser.readfp(io.BytesIO(sample_config))
        self.assertRaises(config.NeededOption, config.configParser.read, [])

    @patch('iro.config.ConfigParser.read')
    def testMust(self,pRead):
        v=Mock()
        config.main.options["test"] = config.Option(v,default="jehei")
        try:
            sample_config = """[main]
dburl = sdfawersdf
port = 8000
"""
            config.configParser.readfp(io.BytesIO(sample_config))
            config.configParser.read([])
            self.assertEqual(v.called,0)
            config.main.load(config.configParser.items("main"))
            self.assertEqual(config.main.test,'jehei')
            sample_config = """[main]
dburl = adfgsdftsfg
port = 8000
test = foohu
    """
            config.configParser.readfp(io.BytesIO(sample_config))
            config.configParser.read([])
            v.assert_called_once_with("foohu","test")
        finally:
            del(config.main.options["test"])

    @patch('iro.config.ConfigParser.read')
    def testProviders(self, pRead):
        v=Mock()
        class TestProvider(Provider):
            def __init__(self,name):
                o = [("test",config.Option(v))]
                Provider.__init__(self, name, options=o)
        providers["test"]=TestProvider
        try:
            sample_config = """[p]
"""
            config.configParser.readfp(io.BytesIO(sample_config))
            self.assertRaises(ConfigParser.NoOptionError, config.configParser.read, [])  
            self.assertEqual(v.called,0)
            sample_config = """[p]
typ= test
test= foo
"""
            config.configParser.readfp(io.BytesIO(sample_config))
            config.configParser.read([])
            v.assert_called_once_with("foo","test")
        finally:
            del(providers["test"])


class TestConfig(unittest.TestCase):

    def config(self,name):
        return config.Config(name, OrderedDict([
                ("dburl",config.Option(lambda x,y:x,long="Connection URL to database",must=True)),
                ("port",config.Option(partial(validate.vInteger,minv=0),long="Port under that twisted is running",must=True)),
                ])
            )

    def testSame(self):
        c1 = self.config("1")
        c1.port = 1
        c1.dburl = "dburl1"
        c2 = self.config("2")
        c2.port = 1
        c2.dburl = "dburl1"
        self.assertTrue(c1.same(c2))
        self.assertTrue(c1.same(c1))
        self.assertTrue(c2.same(c1))
        c2.port = 2
        self.assertFalse(c2.same(c1))
        self.assertFalse(c1.same(c2))
        c2.port = 1
        c2.dburl = "dburl2"
        self.assertFalse(c2.same(c1))
        self.assertFalse(c1.same(c2))

    def testSampleConf(self):
        c1 = self.config("1")
        self.assertEqual(c1.sampleConf(),["[1]",
            "# Connection URL to database",
            "dburl = ","",
            "# Port under that twisted is running",
            "port = ",""])

    def testSampleConfDefault(self):
        c1 = self.config("1")
        c1.options["port"].default = 12345
        c1.options["port"].must = False
        c1.options["dburl"].default = True
        self.assertEqual(c1.sampleConf(),["[1]",
            "# Connection URL to database",
            "dburl = True","",
            "# Port under that twisted is running",
            "# port = 12345",""])