from StringIO import StringIO
from Products.CMFCore.utils import getToolByName
from Products.CMFCore.DirectoryView import addDirectoryViews
from Products.CMFCore.CMFCorePermissions import ManagePortal,ReplyToItem
from App.Common import package_home
from os.path import exists as path_exists, join as path_join

from Products.qPloneComments.config import *

import string

def setupSkin(self, out, layers):
    """Setup skins"""
    skinstool=getToolByName(self, 'portal_skins')
    addDirectoryViews(skinstool, 'skins', GLOBALS)

    for skin in skinstool.getSkinSelections():
        modified = False
        path = skinstool.getSkinPath(skin)
        path = map( string.strip, string.split( path,',' ) )
        for layer in layers:
            if not layer in path:
                try:
                    path.insert(path.index('custom')+1, layer )
                except ValueError:
                    path.append(layer)
                modified = True
                out.write('  Layer %s sucessfully installed into skin %s.\n' % (layer,skin))
            else:
                out.write('  Layer %s was already installed into skin %s.\n' % (layer,skin))
        if modified:
            path = string.join( path, ', ' )
            skinstool.addSkinSelection( skin, path )


def install(self):
    out=StringIO()

    Layers = []
    mtool = getToolByName(self, 'portal_migration')
    plone_version = mtool.getFileSystemVersion()
    if plone_version.startswith('2.1'):
        plone_version = '2.1'
    elif plone_version.startswith('2.0'):
        plone_version = '2.0.5'
    elif plone_version.startswith('2.5'):
        plone_version = '2.5'
    else:
        raise Exception("Error - Unsupported version. Suported versions: Plone 2.0.5-2.5")

    product_path = package_home(GLOBALS)
    versioned_skin = path_join(product_path, 'skins', PROJECTNAME, plone_version)

    Layers.append(SKIN_NAME)
    Layers.append('%s/%s' % (SKIN_NAME, plone_version) )
    out.write('Call setupSkin... \n')
    setupSkin(self, out, Layers)

    # add Property sheet to portal_properies
    pp = getToolByName(self, 'portal_properties')
    if not 'qPloneComments' in pp.objectIds():
        pp.addPropertySheet(id='qPloneComments', title= '%s Properties' % 'qPloneComments')
        out.write("Adding %s property sheet to portal_properies\n" % 'qPloneComments' )
    props_sheet = pp['qPloneComments']
    updateProperties(props_sheet, out, PROPERTIES)
    # Tern on Anonymous commenting
    self.manage_permission(ReplyToItem, ['Anonymous','Manager','Member'], 1)

    out.write("Updating properties of %s property sheet\n" % 'qPloneComments' )

    # Add Configlet. Delete old version before adding, if exist one.
    controlpanel_tool = getToolByName(self, 'portal_controlpanel')
    controlpanel_tool.unregisterConfiglet(CONFIGLET_ID)
    controlpanel_tool.registerConfiglet(id=CONFIGLET_ID, name=CONFIGLET_NAME, category='Products',
                                        action='string:${portal_url}/%s' % CONFIGLET_ID,
                                        appId=PROJECTNAME, permission=ManagePortal, imageUrl='group.gif')

    # Add DiscussionManager role to Portal
    if plone_version == '2.5':
        uf = getToolByName(self, 'acl_users')
        rmanager = uf.portal_role_manager
        existing = rmanager.listRoleIds()
        if not 'DiscussionManager' in existing:
            rmanager.addRole('DiscussionManager')
            out.write("Added DiscussionManager role top portal.\n")
    else:
        roles = list(self.__ac_roles__)
        if not 'DiscussionManager' in roles:
            roles.append('DiscussionManager')
            roles = tuple(roles)
            self.__ac_roles__ = roles
            out.write("Added DiscussionManager role top portal.\n")

    self.manage_permission('Moderate Discussion', ['DiscussionManager', 'Manager'])
    #  Add 'DiscussionManagers' group
    gtool = getToolByName(self, 'portal_groups')
    existing = gtool.listGroupIds()
    if not 'DiscussionManager' in existing:
        gtool.addGroup('DiscussionManager', roles=['DiscussionManager'])
        out.write("Added DiscussionManager group to portal_groups with DiscussionManager role.\n")

    # Remove workflow-chain for Discussion Item
    wf_tool = getToolByName(self, 'portal_workflow')
    wf_tool.setChainForPortalTypes( ('Discussion Item',), []) 
    out.write("Removed workflow chain for Discussion Item type.\n")

    out.write('Installation successfully completed.\n')
    return out.getvalue()


def updateProperties(pp_ps, out, *args):
    for prop in args:
        for prop_id, prop_value, prop_type in prop:
            if not pp_ps.hasProperty(prop_id):
                pp_ps.manage_addProperty(prop_id, prop_value, prop_type)
                out.write("Adding %s property to %s property sheet\n" % (prop_id, 'qPloneComments') )

def uninstall(self) :
    skinstool = getToolByName(self, 'portal_skins')
    # Remove skin
    for skinName in skinstool.getSkinSelections():
        old_path = skinstool.getSkinPath(skinName)
        old_path = [i.strip() for i in  old_path.split(',')]
        path = []
        for p in old_path:
            if not p.startswith(SKIN_NAME):
        	path.append(p)
        path = ','.join(path)
        skinstool.addSkinSelection(skinName, path)
            
    # Remove configlet
    controlpanel_tool = getToolByName(self, 'portal_controlpanel')
    controlpanel_tool.unregisterConfiglet(CONFIGLET_ID)
    # Remove Product's property sheet from portal_properties
    pp = getToolByName(self, 'portal_properties')