from Products.CMFCore.utils import getToolByName

# Get apropriate property from (propery_sheeet) configlet
def getProp(self, prop_name, marker=None):
    result = marker
    pp = getToolByName(self, 'portal_properties')
    config_ps = getattr(pp, 'qPloneComments', None)
    if config_ps:
        result =  getattr(config_ps, prop_name, marker)
    return result

def publishDiscussion(self):
    roles = ['Anonymous']
    self.review_state = "published"
    self.manage_permission('View', roles, acquire=1)
    self._p_changed = 1
    self.reindexObject()


def setAnonymCommenting(context, allow=False):
    portal = getToolByName(context, 'portal_url').getPortalObject()
    if allow:
        portal.manage_permission('Reply to item', ['Anonymous','Manager','Member'], 1)
    else:
        portal.manage_permission('Reply to item', ['Manager','Member'], 1)

def manage_mails(reply, context, action):
    def sendMails(props, actions, key):
        for p in props:
            if p in actions[key]:
                send_email(reply, context, p)

    prop_sheet = context.portal_properties['qPloneComments']
    props = filter(lambda x: prop_sheet.getProperty(x), prop_sheet.propertyIds())

    actions = { 'onPublish': ('enable_approve_user_notification',
                              'enable_reply_user_notification',
                              'enable_published_notification'),
                'onDelete' :  ('enable_rejected_user_notification',),
                'onApprove': ('enable_approve_notification',)}

    if action == 'publishing':
        sendMails(props, actions, 'onPublish')

    elif action == 'deleting':
        sendMails(props, actions, 'onDelete')

    elif action == 'aproving':
        sendMails(props, actions, 'onApprove')


def send_email(reply, context, state):
    def send(context, template, args):
        msg = getattr(context, template)(**args)
        return context.MailHost.send(msg)

    def getEmail(obj, context):
        userid = obj.getProperty('userid', '')
        if userid == 'anonym':
            return obj.getProperty('email', '')
        else:
            return context.portal_membership.getMemberById(userid).getProperty('email', '')

    def getParent(reply):
        reply = reply.inReplyTo()
        return reply.meta_type == 'Discussion Item' and getParent(reply) or reply

    def getDIParent(reply):
        r = reply.inReplyTo()
        return r.meta_type == 'Discussion Item' and r or None

    def getParentOwnerEmail(reply, context):
        creator_id = getParent(reply).Creator()
        creator = getToolByName(context, 'portal_membership').getMemberById(creator_id)
        if creator:
            return creator.getProperty('email', '')
        return ''

    args = {}
    if reply:
        user_email = getEmail(reply, context)
        reply_parent = getParent(reply)

    organization_name = getProp(context, 'email_subject_prefix', '')
    creator_name = reply.Creator()
    admin_email = context.portal_url.getPortalObject().getProperty('email_from_address')

    if state == 'enable_approve_user_notification':
        if user_email:
            template = 'notify_comment_template'
            args={'mto': user_email,
                  'mfrom': admin_email,
                  'obj': reply_parent,
                  'organization_name': organization_name,
                  'name': creator_name}
        else:
            args = {}

    elif state == 'enable_rejected_user_notification':
        if user_email:
            template = 'rejected_comment_template'
            args={'mto': user_email,
                  'mfrom': admin_email,
                  'obj': reply_parent,
                  'organization_name': organization_name,
                  'name': creator_name}
        else:
            args = {}

    elif state == 'enable_reply_user_notification':
        template = 'reply_notify_template'
        di_parrent = getDIParent(reply)
        if di_parrent:
            user_email = getEmail(di_parrent, context)
            if user_email:
                args={'mto': user_email,
                      'mfrom': admin_email,
                      'obj': reply_parent,
                      'organization_name': organization_name,
                      'name': creator_name}
            else:
                args = {}
        else:
            args = {}

    elif state == 'enable_published_notification':
        template = 'published_comment_template'
        user_email = getParentOwnerEmail(reply, context)
        if user_email:
            args={'mto':user_email,
                  'mfrom':admin_email,
                  'obj':reply_parent,
                  'organization_name':organization_name}
        else:
            args = {}

    elif state == 'enable_approve_notification':
        template = 'approve_comment_template'
        user_email = getProp(context, "email_discussion_manager", None)
        if user_email:
            args={'mto':user_email,
                  'mfrom':admin_email,
                  'obj':reply_parent,
                  'organization_name':organization_name}
        else:
            args = {}

    if args:
        return send(context, template, args)
    else:
        return 1