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from django import forms
from django.core.exceptions import ValidationError
from django.http import Http404, HttpResponse
from django.utils.dateparse import parse_datetime, parse_duration
from django.utils import timezone
from postgresqleu.util.widgets import MonospaceTextarea, SimpleTreeviewWidget
from postgresqleu.confreg.models import Conference, ConferenceSession, Track
from postgresqleu.confreg.models import MessagingProvider
from postgresqleu.confreg.twitter import post_conference_social, render_multiprovider_tweet
from postgresqleu.confreg.jinjafunc import get_all_available_attributes
from postgresqleu.confsponsor.models import Sponsor, SponsorshipLevel
from postgresqleu.util.messaging import get_messaging, get_messaging_class
from postgresqleu.util.messaging.short import get_shortened_post_length
import datetime
import random
def _timestamps_for_tweets(conference, starttime, interval, randint, num):
if isinstance(starttime, datetime.datetime):
t = starttime
else:
t = parse_datetime(starttime)
if not timezone.is_aware(t):
t = timezone.make_aware(t, conference.tzobj)
if isinstance(interval, datetime.time):
ival = datetime.timedelta(hours=interval.hour, minutes=interval.minute, seconds=interval.second)
else:
ival = parse_duration(interval)
if isinstance(randint, datetime.time):
rsec = datetime.timedelta(hours=randint.hour, minutes=randint.minute, seconds=randint.second).total_seconds()
else:
rsec = parse_duration(randint).total_seconds()
for i in range(num):
yield t
t += ival
t += datetime.timedelta(seconds=rsec * random.random())
if t.time() > conference.twitter_timewindow_end:
# Past the end of the day, so move it to the start time the next day
t = timezone.make_aware(
datetime.datetime.combine(t + datetime.timedelta(days=1), conference.twitter_timewindow_start),
conference.tzobj,
)
class BaseCampaignForm(forms.Form):
starttime = forms.DateTimeField(label="Date and time of first tweet", initial=timezone.now)
timebetween = forms.TimeField(label="Time between tweets", initial=datetime.time(6, 0, 0))
timerandom = forms.TimeField(label="Time randomization", initial=datetime.time(0, 30, 0),
help_text="A random time from zero to this is added after each time interval")
content_template = forms.CharField(max_length=2000,
widget=MonospaceTextarea,
required=True)
available_fields = forms.CharField(required=False, help_text="These fields are available as {{field}} in the template")
providers = forms.ModelMultipleChoiceField(required=True, queryset=None,
help_text="Which social media providers to post to")
dynamic_preview_fields = ['content_template', ]
confirm = forms.BooleanField(help_text="Confirm that you want to generate all the tweets for this campaign at this time", required=False)
def __init__(self, conference, *args, **kwargs):
self.conference = conference
self.field_order = ['starttime', 'timebetween', 'timerandom', 'content_template', 'available_fields', ] + self.custom_fields + ['confirm', ]
super(BaseCampaignForm, self).__init__(*args, *kwargs)
self.fields['providers'].queryset = MessagingProvider.objects.filter(conferencemessaging__conference=conference, active=True, conferencemessaging__broadcast=True)
self.fields['providers'].initial = [p.id for p in self.fields['providers'].queryset.all()]
self.fields['available_fields'].widget = SimpleTreeviewWidget(treedata=self.get_contextrefs())
if not all([self.data.get(f) for f in ['starttime', 'timebetween', 'timerandom', 'content_template'] + self.custom_fields]):
del self.fields['confirm']
else:
num = self.get_queryset().count()
tsl = list(_timestamps_for_tweets(conference,
self.data.get('starttime'),
self.data.get('timebetween'),
self.data.get('timerandom'),
num,
))
if tsl:
approxend = tsl[-1]
self.fields['confirm'].help_text = "Confirm that you want to generate all the tweets for this campaign at this time. Campaign will go on until approximately {}, with {} posts.".format(approxend, num)
else:
self.fields['confirm'].help_text = "Campaign matches no entries. Try again."
def get_contextrefs(self):
return {}
def clean_confirm(self):
if not self.cleaned_data['confirm']:
if self.get_queryset().count == 0:
del self.fields['confirm']
else:
raise ValidationError("Please check thix box to confirm that you want to generate all tweets!")
def clean(self):
if self.get_queryset().count() == 0:
self.add_error(None, 'Current filters return no entries. Fix your filters and try again!')
del self.fields['confirm']
return self.cleaned_data
def generate_tweets(self, author):
objects = list(self.get_queryset().order_by('?'))
for ts, obj in zip(_timestamps_for_tweets(self.conference, self.cleaned_data['starttime'], self.cleaned_data['timebetween'], self.cleaned_data['timerandom'], len(objects)), objects):
post_conference_social(self.conference,
self.generate_tweet(self.conference, obj, self.cleaned_data['content_template']),
approved=False,
posttime=ts,
author=author,
providers=self.cleaned_data['providers'])
class ApprovedSessionsCampaignForm(BaseCampaignForm):
tracks = forms.ModelMultipleChoiceField(required=True, queryset=Track.objects.all())
custom_fields = ['tracks', ]
def __init__(self, *args, **kwargs):
super(ApprovedSessionsCampaignForm, self).__init__(*args, **kwargs)
self.fields['tracks'].queryset = Track.objects.filter(conference=self.conference)
@classmethod
def generate_tweet(cls, conference, session, s):
return render_multiprovider_tweet(conference, s, {
'conference': conference,
'session': session,
})
@classmethod
def get_contextrefs(cls):
return {
'conference': dict(get_all_available_attributes(Conference)),
'session': dict(get_all_available_attributes(ConferenceSession)),
}
def get_queryset(self):
return ConferenceSession.objects.filter(conference=self.conference, status=1, cross_schedule=False, track__in=self.data.getlist('tracks'))
class SponsorsCampaignForm(BaseCampaignForm):
levels = forms.ModelMultipleChoiceField(required=True, queryset=SponsorshipLevel.objects.all())
custom_fields = ['levels', ]
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['levels'].queryset = SponsorshipLevel.objects.filter(conference=self.conference)
@classmethod
def generate_tweet(cls, conference, sponsor, s):
return render_multiprovider_tweet(conference, s, {
'conference': conference,
'sponsor': sponsor,
})
@classmethod
def get_contextrefs(cls):
return {
'conference': dict(get_all_available_attributes(Conference)),
'sponsor': dict(get_all_available_attributes(Sponsor)),
}
def get_queryset(self):
return Sponsor.objects.filter(conference=self.conference, confirmed=True, level__in=self.data.getlist('levels'))
class BaseCampaign(object):
@classmethod
def get_dynamic_preview(self, conference, fieldname, templatestring):
messagingset = [(mess.provider, get_messaging(mess.provider)) for mess in conference.conferencemessaging_set.select_related('provider').filter(broadcast=True, provider__active=True)]
maxlens = {provider.internalname: mess.max_post_length for provider, mess in messagingset}
if fieldname == 'content_template':
posts = self.get_posts(conference, templatestring)
# Calculate the longest once for each messaging provider
longest = {}
for provider, mess in messagingset:
if provider.internalname not in maxlens:
maxlens[provider.internalname] = mess.max_post_length
if posts:
longest[provider.internalname] = max((get_shortened_post_length(
p.get(str(provider.id), '') if isinstance(p, dict) else p
)) for p in posts)
else:
longest[provider.internalname] = 0
def _post_preview(p):
val = random.choice(list(p.values())) if isinstance(p, dict) else p
length = get_shortened_post_length(val)
return val, length
previews = "\n\n".join([
"{}\n------------------------------- (length {})".format(*_post_preview(p))
for p in posts[:5]
])
return HttpResponse("{}\n\nLongest posts:\n{}\n".format(
previews,
"\n".join('{}: {}/{}'.format(k, longest[k], maxlens[k]) for k in sorted(maxlens.keys())),
), content_type='text/plain')
class ApprovedSessionsCampaign(BaseCampaign):
name = "Approved sessions campaign"
form = ApprovedSessionsCampaignForm
note = "This campaign will create one tweet for each approved session in the system."
@classmethod
def get_posts(cls, conference, templatestring):
return [cls.form.generate_tweet(conference, session, templatestring) for session in ConferenceSession.objects.filter(conference=conference, status=1, cross_schedule=False)]
class SponsorCampaign(BaseCampaign):
name = "Sponsors campaign"
form = SponsorsCampaignForm
note = "This campaign will create one tweet for each sponsor."
@classmethod
def get_posts(cls, conference, templatestring):
return [cls.form.generate_tweet(conference, sponsor, templatestring) for sponsor in Sponsor.objects.filter(conference=conference, confirmed=True)]
allcampaigns = (
(1, ApprovedSessionsCampaign),
(2, SponsorCampaign),
)
def get_campaign_from_id(id):
for i, c in allcampaigns:
if i == int(id):
return c
raise Http404()
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