Add bulletin preview functionality

Also - do not send emails to those who are not subscribed

sspromotions/jinja2/sspromotions/bulletin_preview.html

@@ -0,0 +1,86 @@
+{% extends 'sspromotions/base.html' %}
+
+{#
+    Society Self-Service
+    Copyright © 2018-2019  Yingtong Li (RunasSudo)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#}
+
+{% block title %}Bulletin preview{% endblock %}
+
+{% block maincontent %}
+	<h1>Bulletin preview</h1>
+	
+	<form class="ui form" method="POST">
+		<div class="ui required inline grid field">
+			<label class="three wide column">Date</label>
+			<div class="eleven wide column">
+				<div class="ui calendar" id="cal_date">
+					<div class="ui input left icon grid">
+						<i class="calendar icon" style="z-index: 999;"></i>
+						<input class="sixteen wide column" type="text" name="date" value="{{ date }}">
+					</div>
+				</div>
+			</div>
+		</div>
+		<div class="ui inline grid field">
+			<label class="three wide column">Groups</label>
+			<div class="eleven wide column">
+				{% for group in groups %}
+					<div class="field" style="display: inline; margin-right: 1em;">
+						<div class="ui checkbox">
+							<input type="checkbox" name="group_{{ group.id }}" id="group_{{ group.id }}" checked>
+							<label for="group_{{ group.id }}">{{ group.name }}</label>
+						</div>
+					</div>
+				{% endfor %}
+			</div>
+		</div>
+		<div class="ui divider"></div>
+		<div class="ui error message"></div>
+		<input type="hidden" name="csrfmiddlewaretoken" value="{{ csrf_token }}">
+		<input class="ui primary button" type="submit" name='submit' value="Preview">
+	</form>
+{% endblock %}
+
+{% block head %}
+	{{ super() }}
+	<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/semantic-ui-calendar@0.0.8/dist/calendar.min.css" integrity="sha256-KCHiPtYk/vfF5/6lDXpz5r5FuIYchVdai0fepwGft80=" crossorigin="anonymous">
+{% endblock %}
+
+{% block script %}
+	{{ super() }}
+	<script src="https://cdn.jsdelivr.net/npm/semantic-ui-calendar@0.0.8/dist/calendar.min.js" integrity="sha256-Pnz4CK94A8tUiYWCfg/Ko25YZrHqOKeMS4JDXVTcVA0=" crossorigin="anonymous"></script>
+	
+	<script>
+		function leftpad(n) {
+			if (n < 10)
+				return '0' + n;
+			return '' + n;
+		}
+		
+		$('#cal_date').calendar({
+			type: 'date',
+			formatter: {
+				date: function(date, settings) {
+					return date.getFullYear() + '-' + leftpad(date.getMonth() + 1) + '-' + leftpad(date.getDate());
+				}
+			},
+			isDisabled: function(date, mode) {
+				return date.getDay() !== 0; // Sunday only
+			}
+		});
+	</script>
+{% endblock script %}

sspromotions/management/commands/sendbulletin.py

@@ -26,6 +26,7 @@ from django.urls import reverse
 from django.utils import timezone
 
 import ssmembership.models
+import sspromotions.models
 import sspromotions.utils
 
 import logging
@@ -96,7 +97,8 @@ class Command(BaseCommand):
 		events = list(sspromotions.utils.get_calendar_events(calbegin, calend))
 		
 		for member in members:
-			template_args = sspromotions.utils.bulletin_args(member, events, bulbegin, bulend)
+			if sspromotions.models.BulletinSubscription.is_member_subscribed(member):
+				template_args = sspromotions.utils.bulletin_args(member, sspromotions.models.Group.get_member_groups(member), events, bulbegin, bulend)
 				
 				content_html = premailer.Premailer(template_html.render(template_args), cssutils_logging_level=logging.ERROR, strip_important=False).transform()
 				content_txt = template_txt.render(template_args)

sspromotions/utils.py

@@ -48,18 +48,13 @@ def bulletin_dates(dt):
 	
 	return calbegin, calend, bulbegin, bulend
 
-def bulletin_args(member, events, bulbegin, bulend):
-	if member is None:
-		groups = models.Group.objects.all()
-	else:
-		groups = models.Group.get_member_groups(member)
-	
+def bulletin_args(member, groups, events, bulbegin, bulend):
 	groups_data = []
 	for group in groups:
 		items = []
 		for item in group.bulletinitem_set.filter(date__gte=bulbegin).filter(date__lt=bulend).all():
 			# Check also_limit
-			if member is None or len(item.also_limit) == 0 or any(models.Group.objects.get(id=x).contains_member(member) for x in item.also_limit if models.Group.objects.filter(id=x).count() > 0):
+			if member is None or len(item.also_limit) == 0 or any(any(g.id == x for g in groups) for x in item.also_limit):
 				items.append(item)
 		
 		if len(items) > 0:

sspromotions/views.py

@@ -22,6 +22,7 @@ from django.shortcuts import render, redirect
 from django.urls import reverse
 from django.utils import timezone
 
+import ssmembership.models
 from . import models
 from . import utils
 
@@ -59,8 +60,16 @@ def bulletin_list(request):
 
 @login_required
 def bulletin_preview(request):
-	calbegin, calend, bulbegin, bulend = utils.bulletin_dates(timezone.now())
-	return render(request, 'sspromotions/email/bulletin.html', utils.bulletin_args(None, utils.get_calendar_events(calbegin, calend), bulbegin, bulend))
+	if request.method == 'POST':
+		group_ids = [int(k[6:]) for k, v in request.POST.items() if k.startswith('group_') and v]
+		groups = [group for group in models.Group.objects.all() if group.id in group_ids]
+		
+		calbegin, calend, bulbegin, bulend = utils.bulletin_dates(datetime.datetime.strptime(request.POST['date'], '%Y-%m-%d'))
+		return render(request, 'sspromotions/email/bulletin.html', utils.bulletin_args(None, groups, utils.get_calendar_events(calbegin, calend), bulbegin, bulend))
+	else:
+		date = timezone.now().date()
+		date += datetime.timedelta(days=(6 - date.weekday() + 7) % 7) # Next Sunday (6 = Sunday)
+		return render(request, 'sspromotions/bulletin_preview.html', {'date': date, 'groups': models.Group.objects.all()})
 
 @login_required
 def bulletin_new(request):