# 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
from sqlalchemy import create_engine
from sets import Set
import io
import os

from iro import install
from iro import config
from iro.model.schema import Base, Offer
from iro.model.utils import WithSession
from iro.offer.provider import providers, Provider
from ..test_helpers.dbtestcase import md, SampleDatabase
from ..test_helpers.utils import DummyObserver

class TestInstallation(unittest.TestCase):
    '''test install script'''
   
    def setUp(self):
        md.setUp()
        if not hasattr(md,"db2"):
            md.db2=SampleDatabase("test2","test2",'%s/my.cnf'%md.tdir)
            md.dburl2='mysql://test2:test@localhost/test2?unix_socket=%s/socket'%md.tdir
            md.db2.create()
        self.log = DummyObserver()
        self.log.start()
        self.engine = None

    def tearDown(self):
        self.log.stop()
        if self.engine:
            Base.metadata.drop_all(self.engine)
            self.engine = None
        try:
            os.remove("iro.conf")
        except OSError as e:
            if e.errno != 2:
                raise

        

    def testCheckConfig(self):
        self.assertEqual(install.checkConfig(),False)
        with open("iro.conf",'w') as fp:
            fp.write("""[main]
dburl=foo""")
        self.assertEqual(install.checkConfig(),False)
        self.assertEqual(len(self.log.e),1)
        self.assertEqual(self.log.e[0]['message'], ("Error while processing config file: Option 'port' in section 'main' is missing.",))
        with open("iro.conf",'w') as fp:
            fp.write("""[main]
dburl=foo
port=123456
""")
        self.assertEqual(install.checkConfig(),True)

    def testCheckDatabase(self):
        config.main.dburl=md.dburl2
        self.assertTrue(install.checkDatabaseConnection())
        self.assertFalse(install.checkDatabase())
        self.engine = create_engine(md.dburl2)
        Base.metadata.create_all(self.engine)
        self.assertTrue(install.checkDatabase())

    def testCheckDatabaseConnection(self):
        config.main.dburl="mysql://t@localhost/test"
        self.assertFalse(install.checkDatabaseConnection())
        self.assertEqual(len(self.log.e),1)
        self.assertTrue(self.log.e[0]['message'][0].startswith("Error while trying to connect to database\n"))
        config.main.dburl="sqlite://"
        self.assertTrue(install.checkDatabaseConnection())


    def testCreateDatabase(self):
        config.main.dburl=md.dburl2
        self.assertTrue(install.checkDatabaseConnection())
        self.assertFalse(install.checkDatabase())
        install.createDatabase()
        self.assertTrue(install.checkDatabase())
   
    def testCreateSampleConfig(self):
        install.createSampleConfig()
        with open("iro.conf",'r') as fp:
            c = fp.read()
        with open(os.path.abspath("../iro.conf.inst"),"r") as fp:
            self.assertEqual(c,fp.read())

    def testNoOverwrite(self):
        with open("iro.conf","w") as fp:
            fp.write("muhaha")
        install.createSampleConfig()
        with open("iro.conf",'r') as fp:
            self.assertEqual(fp.read(),"muhaha")
        self.assertEqual(len(self.log.e),1)
        self.assertEqual(self.log.e[0]['message'], ("iro.conf exists and will not be overwritten.",))

    def testGetAllRoutesNone(self):
        config.main.dburl=md.dburl2
        install.createDatabase()
        self.assertEqual(install.getAllRoutes([]),{"orphand":Set(),"added":Set()})
        
    def testGetAllRoutesOrphand(self):
        config.main.dburl=md.dburl2
        install.createDatabase()
        self.engine = create_engine(md.dburl2)
        with WithSession(self.engine,True) as session:
            session.add(Offer(provider="p",route="r",typ="t",name="test"))
            session.add(Offer(provider="p",route="r2",typ="t",name="test2"))
        self.assertEqual(install.getAllRoutes([]),{"orphand":Set(["test","test2"]),"added":Set()})

    def testGetAllRoutesAdded(self):
        config.main.dburl=md.dburl2
        install.createDatabase()
        self.engine = create_engine(md.dburl2)
        class TestProvider(Provider):
            def __init__(self, name):       
                Provider.__init__(self, name, {"r":["1","2","3"]})
        providers["test"]=TestProvider
        sample_config = """[p]
typ= test
test= foo
"""
        config.configParser.readfp(io.BytesIO(sample_config))
        self.assertEqual(install.getAllRoutes(["p"]),{"orphand":Set(),"added":Set(["p_r_1","p_r_2","p_r_3"])}) 
        
        #test writing
        self.assertEqual(install.getAllRoutes(["p"],True),{"orphand":Set(),"added":Set(["p_r_1","p_r_2","p_r_3"])})
        with WithSession(self.engine,True) as session:
            o = Set([i[0] for i in session.query(Offer.name).all()])
            self.assertEqual(o,Set(["p_r_1","p_r_2","p_r_3"]))

        #nothing to do anymore
        self.assertEqual(install.getAllRoutes(["p"]),{"orphand":Set(),"added":Set()}) 

    def testGetAllRoutesOaA(self):
        config.main.dburl=md.dburl2
        install.createDatabase()
        self.engine = create_engine(md.dburl2)
        class TestProvider(Provider):
            def __init__(self, name):       
                Provider.__init__(self, name, {"r":["1","2","3"]})
        providers["test"]=TestProvider
        sample_config = """[p]
typ= test
test= foo
"""
        config.configParser.readfp(io.BytesIO(sample_config))

        with WithSession(self.engine,True) as session:
            session.add(Offer(provider="q",route="r",typ="t",name="test"))
            session.add(Offer(provider="q",route="r2",typ="t",name="test2"))
            session.add(Offer(provider="p",route="1",typ="r",name="foo"))
        self.assertEqual(install.getAllRoutes(["p"]),{"orphand":Set(["test","test2"]),"added":Set(["p_r_2","p_r_3"])}) 
        
        #test writing
        self.assertEqual(install.getAllRoutes(["p"],True),{"orphand":Set(["test","test2"]),"added":Set(["p_r_2","p_r_3"])})
        with WithSession(self.engine,True) as session:
            o = Set([i[0] for i in session.query(Offer.name).all()])
            self.assertEqual(o,Set(["test","test2","foo","p_r_2","p_r_3"]))

        self.assertEqual(install.getAllRoutes(["p"]),{"orphand":Set(["test","test2"]),"added":Set()})