#!/usr/bin/python
# encoding=utf8
import os
import shutil
import settings
import systemtest.testcase
import systemtest.util as util
import urllib, urllib2
import ssl, base64

from urllib2 import Request

from functools import wraps

from systemtest.artifactrepository import GitArtifactRepository

from systemtest.testcase import TEST_DATA

#Had to add the ssl wrap thing below because of a problem during the auth call
def sslwrap(func):
    @wraps(func)
    def bar(*args, **kw):
        kw['ssl_version'] = ssl.PROTOCOL_TLSv1
        return func(*args, **kw)
    return bar
ssl.wrap_socket = sslwrap(ssl.wrap_socket)

class TestCase(systemtest.testcase.TestCase):

    def execute(self):
        '''create data source openbis (openbis1)'''
        self.installOpenbis(instanceName ='openbis1', technologies = ['screening'])
        openbis1 = self.createOpenbisController('openbis1')
        openbis1.setDummyAuthentication()
        openbis1.setDataStoreServerUsername('etlserver1')
        openbis1.createTestDatabase('openbis')
        openbis1.createTestDatabase('pathinfo')
        openbis1.createTestDatabase('imaging')
        
        '''create harvester openbis (openbis2)'''
        self.installOpenbis(instanceName ='openbis2', technologies = ['screening', 'proteomics'])
        openbis2 = self.createOpenbisController('openbis2', port = '8445')
        openbis2.setDummyAuthentication()
        openbis2.setDataStoreServerUsername('etlserver2')
        openbis2.createTestDatabase('openbis')
        openbis2.createTestDatabase('pathinfo')
        openbis2.createTestDatabase('imaging')
        openbis2.createTestDatabase('proteomics')


    def executeInDevMode(self):
        openbis1 = self.createOpenbisController(instanceName = 'openbis1', dropDatabases=False)
        openbis1.setDummyAuthentication()
        self.installDataSourcePlugin(openbis1, 8444)
        self.installEntityRegistrationPlugin(openbis1)
        corePluginsPropertiesFile = "%s/servers/core-plugins/core-plugins.properties" % openbis1.installPath
        util.printAndFlush(corePluginsPropertiesFile)
        #util.writeProperties(corePluginsPropertiesFile)
        openbis1.setDataStoreServerUsername('etlserver1')
        openbis1.setDataStoreServerProperty("host-address", "https://localhost")
        openbis1.allUp()
        
        openbis1.dropAndWait("ENTITY_REGISTRATION", "openbis-sync-entity-reg")

        openbis2_port = '8445'
        openbis2_dss_port = '8446'
        openbis2 = self.createOpenbisController(instanceName = 'openbis2', port = openbis2_port, dropDatabases=False)
        openbis2.setDataStoreServerPort(openbis2_dss_port)
        openbis2.setOpenbisPortDataStoreServer(openbis2_port)
        openbis2.setDataStoreServerProperty("host-address", "https://localhost")
        self.installHarvesterPlugin(openbis2)
        openbis2.setDummyAuthentication()
        '''datasource plugin is installed also on harvester side just for testing'''
        self.installDataSourcePlugin(openbis2, openbis2_dss_port)
        openbis2.setDataStoreServerUsername('etlserver2')
        source = self.getHarvesterConfigFolder()
        destination = openbis2.installPath
        util.printAndFlush("Copying harvester config file from %s to %s"% (source, destination))
        util.copyFromTo(source, destination, "harvester-config.txt")
        openbis2.allUp()
        
        monitor = util.LogMonitor("%s syncronization.log" % openbis2.instanceName,
                                  "%s/syncronization.log" % openbis2.installPath) # "%s/servers/datastore_server/log/datastore_server_log.txt" % openbis2.installPath
        monitor.addNotificationCondition(util.RegexCondition('OPERATION.DataSetRegistrationTask'))
        monitor.waitUntilEvent(util.RegexCondition('OPERATION.DataSetRegistrationTask - Saving the timestamp of sync start to file'))
        
        '''read entity graph from datasource'''
        datasource_graph_response = self.getResourceListForComparison('8444', 'harvester1', '123')
        file1 = os.path.join(destination, "datasource_graph.txt")
        self.writeResponseToFile(datasource_graph_response, file1)
        content1 = self.readLinesFromFile(file1)
        content1.sort()

        '''read entity graph from harvester'''
        harvester_graph_response = self.getResourceListForComparison(openbis2_dss_port, 'testuser1', '123')
        file2 = os.path.join(destination, "harvester_graph.txt")
        self.writeResponseToFile(harvester_graph_response, file2)
        content2 = self.readLinesFromFile(file2)
        content2.sort()
        
        '''compare the two. If the only different is in space labels then we are good.'''
        diff_array = self.diff(set(content1), set(content2))
        same = True
        with open(os.path.join(destination, "diff.txt"), 'wb') as output:
            for item in diff_array:
                output.write("%s\n" % item)
                if item.startswith("label") == False:
                    same = False

        if same == False:
            self.fail("The entity graphs on datasource and harvester are not equal.See %s for details" % os.path.join(destination, "diff.txt"))
                
    def readLinesFromFile(self, file):
        with open(file, 'rb') as output:
            content = output.readlines()
        return content
            
    def writeResponseToFile(self, datasource_graph_response, file1):
        with open(file1, 'wb') as output:
            output.write(datasource_graph_response.read())
        return output
    
    def diff(self, first, second):
        first = set(first)
        second = set(second)
        return [item for item in first if item not in second]
        
    def getResourceListForComparison(self, dss_port, user, password):
        url = "https://localhost:%s/datastore_server/re-sync?verb=resourcelist.xml" % dss_port
        request = urllib2.Request(url)
        request.add_header('Accept', 'application/json')
        request.add_header("Content-type", "application/x-www-form-urlencoded")
        base64string = base64.encodestring('%s:%s' % (user, password)).replace('\n', '')
        request.add_header("Authorization", "Basic %s" % base64string)
        data = urllib.urlencode({'mode' : 'test'})
        response = urllib2.urlopen(request, data)
        return response

    def installPlugin(self, openbisController, plugin_name):
        repository = GitLabArtifactRepository(self.artifactRepository.localRepositoryFolder)
        path = repository.getPathToArtifact('149', 'archive.zip')
        util.printAndFlush("path to core plugin in the repository: %s" % path)
        destination = "%s/servers/core-plugins/%s/" % (openbisController.installPath, openbisController.instanceName)
        util.printAndFlush("Unzipping plugin % s into folder %s"% (plugin_name, destination))
        util.unzipSubfolder(path, 'openbissync.git/core-plugins/%s/1/'% plugin_name, destination)

    def installDataSourcePlugin(self, openbisController, dss_port):
        self.installPlugin(openbisController, "datasource")
        datasource_core_plugin_properties = "%s/1/dss/services/resource-sync/plugin.properties" % openbisController.instanceName
        plugin_properties_file = os.path.join(openbisController.installPath, "servers", "core-plugins", datasource_core_plugin_properties)
        util.printAndFlush("Updating %s" % plugin_properties_file)
        pluginProps = util.readProperties(plugin_properties_file)
        pluginProps['request-handler.server-url'] = "https://localhost:%s/openbis" % dss_port
        pluginProps['request-handler.download-url'] = "https://localhost:%s" % dss_port
        util.writeProperties(plugin_properties_file, pluginProps)
        
    def installEntityRegistrationPlugin(self, openbisController):
        self.installPlugin(openbisController, "test")

    def installHarvesterPlugin(self, openbisController):
        self.installPlugin(openbisController, "harvester")

    def getHarvesterConfigFolder(self):
        return systemtest.testcase.TEMPLATES + "/" + self.name + "/harvester_config"
    
class GitLabArtifactRepository(GitArtifactRepository):
    """
    Artifact repository for a gitlab projects.
    Note: it requires project id as the project "argument". This can be found by using the following command:
    curl --header "PRIVATE-TOKEN: 2iwhxKbfe62ES8JWAKsG"  "https://ssdmsource.ethz.ch/api/v3/projects?per_page=99999"
    after logging in and retrieving the private token with
    curl https://ssdmsource.ethz.ch/api/v3/session --data-urlencode 'login=’ --data-urlencode 'password=’
    """
    def __init__(self, localRepositoryFolder, host = 'ssdmsource.ethz.ch'):
        GitArtifactRepository.__init__(self, localRepositoryFolder)
        self.host = host

    def downloadArtifact(self, project, pattern):
        url = "https://%s/api/v3/projects/%s/repository/%s" % (self.host, project, pattern)
        util.printAndFlush("Download %s to %s." % (url, self.localRepositoryFolder))
        request = Request(url, headers = {'PRIVATE-TOKEN' : '2iwhxKbfe62ES8JWAKsG'})
        self._download(urllib2.urlopen(request), pattern)
        return pattern
    
TestCase(settings, __file__).runTest()