gremmie@1: """
gremmie@1: Forms for the messages application.
gremmie@1: """
gremmie@1: 
gremmie@1: from django import forms
gremmie@1: from django.contrib.auth.models import User
gremmie@1: from django.conf import settings
gremmie@1: from django.contrib.sites.models import Site
gremmie@1: from django.core.urlresolvers import reverse
gremmie@1: from django.template.loader import render_to_string
gremmie@1: 
gremmie@1: from core.functions import send_mail
gremmie@1: from core.functions import get_full_name
gremmie@1: from core.widgets import AutoCompleteUserInput
gremmie@1: from messages.models import Message
gremmie@1: from messages.models import Options
gremmie@1: 
gremmie@1: 
gremmie@1: class ComposeForm(forms.Form):
gremmie@1:    """
gremmie@1:    This form is used to compose private messages.
gremmie@1:    """
gremmie@1:    receiver = forms.CharField(label='To', 
gremmie@1:          max_length=30,
gremmie@1:          widget=AutoCompleteUserInput())
gremmie@1:    subject = forms.CharField(max_length=120, widget=forms.TextInput(attrs={'size': 52}))
gremmie@1:    message = forms.CharField(widget=forms.Textarea(attrs={'rows': 20, 'cols': 80}))
gremmie@1:    attach_signature = forms.BooleanField(label='Attach Signature?', required=False)
gremmie@1: 
gremmie@1:    def __init__(self, user, *args, **kwargs):
gremmie@1:       forms.Form.__init__(self, *args, **kwargs)
gremmie@1:       self.user = user
gremmie@1:       options = Options.objects.for_user(user)
gremmie@1:       self.fields['attach_signature'].initial = options.attach_signature
gremmie@1: 
gremmie@1:    def clean_receiver(self):
gremmie@1:       receiver = self.cleaned_data['receiver']
gremmie@1:       try:
gremmie@1:          self.rcvr_user = User.objects.get(username=receiver)
gremmie@1:       except User.DoesNotExist:
gremmie@1:          raise forms.ValidationError("That username does not exist.")
gremmie@1:       if self.user.username.lower() == receiver.lower():
gremmie@1:          raise forms.ValidationError("You can't send a message to yourself.")
gremmie@1:       return receiver
gremmie@1: 
gremmie@1:    def save(self, sender, parent_msg=None):
gremmie@1:       receiver = self.rcvr_user
gremmie@1:       subject = self.cleaned_data['subject']
gremmie@1:       message = self.cleaned_data['message']
gremmie@1:       attach_signature = self.cleaned_data['attach_signature']
gremmie@1: 
gremmie@1:       new_msg = Message(
gremmie@1:          sender=sender,
gremmie@1:          receiver=receiver,
gremmie@1:          subject=subject,
gremmie@1:          message=message,
gremmie@1:          signature_attached=attach_signature,
gremmie@1:       )
gremmie@1:       new_msg.save()
gremmie@1:       if parent_msg is not None:
gremmie@1:          parent_msg.reply_date = new_msg.send_date
gremmie@1:          parent_msg.save()
gremmie@1: 
gremmie@1:       receiver_opts = Options.objects.for_user(receiver)
gremmie@1:       if receiver_opts.notify_email:
gremmie@1:          notify_receiver(new_msg)
gremmie@1: 
gremmie@1:    class Media:
gremmie@1:       css = {
gremmie@1:          'all': ('js/markitup/skins/markitup/style.css',
gremmie@1:                  'js/markitup/sets/markdown/style.css')
gremmie@1:       }
gremmie@1:       js = (
gremmie@1:          'js/messages/compose.js',
gremmie@1:          'js/markitup/jquery.markitup.pack.js',
gremmie@1:          'js/markitup/sets/markdown/set.js',
gremmie@1:       )
gremmie@1: 
gremmie@1: 
gremmie@1: class OptionsForm(forms.ModelForm):
gremmie@1:    class Meta:
gremmie@1:       model = Options
gremmie@1: 
gremmie@1: 
gremmie@1: def notify_receiver(new_msg):
gremmie@1:    """
gremmie@1:    This function creates the notification email to notify a user of
gremmie@1:    a new private message.
gremmie@1:    """
gremmie@1:    site = Site.objects.get_current()
gremmie@1: 
gremmie@1:    email_body = render_to_string('messages/notification_email.txt', {
gremmie@1:             'site': site,
gremmie@1:             'msg': new_msg,
gremmie@1:             'options_url': reverse('messages-options'),
gremmie@1:          })
gremmie@1: 
gremmie@1:    subject = 'New private message for %s at %s' % (new_msg.receiver.username, site.name)
gremmie@1:    from_email = settings.GPP_NO_REPLY_EMAIL + '@' + site.domain
gremmie@1:    send_mail(subject, email_body, from_email, [new_msg.receiver.email])