fix(members/excursion): fix seminar day calculation and add verbosity in finance overview

jdav_web/members/locale/de/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-04-11 00:56+0200\n"
+"POT-Creation-Date: 2025-04-11 18:02+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -1411,6 +1411,18 @@ msgstr ""
 "Um den zu erhalten, musst du den LJP-Antrag innerhalb von 3 Wochen nach der "
 "Ausfahrt beim Jugendreferat einreichen und formal genehmigt bekommen."
 
+#: members/templates/admin/freizeit_finance_overview.html
+msgid "Seminar hours"
+msgstr "Seminar-Stunden"
+
+#: members/templates/admin/freizeit_finance_overview.html
+msgid "Seminar days"
+msgstr "Seminar-Tage"
+
+#: members/templates/admin/freizeit_finance_overview.html
+msgid "Sum"
+msgstr "Summe"
+
 #: members/templates/admin/freizeit_finance_overview.html
 msgid "The LJP contributions are configured to be paid to:"
 msgstr "Die LJP-Zuschüsse werden ausgezahlt an:"

jdav_web/members/models.py

@@ -8,7 +8,7 @@ import csv
 from django.db import models
 from django.db.models import TextField, ManyToManyField, ForeignKey, Count,\
     Sum, Case, Q, F, When, Value, IntegerField, Subquery, OuterRef
-from django.db.models.functions import TruncDate
+from django.db.models.functions import Cast
 from django.utils.translation import gettext_lazy as _
 from django.utils import timezone
 from django.utils.html import format_html
@@ -1293,20 +1293,37 @@ class Freizeit(CommonModel):
         """calculate seminar days based on intervention hours in every day"""
         # TODO: add tests for this
         if hasattr(self, 'ljpproposal'):
-            hours_per_day = (
-                self.ljpproposal.intervention_set
-                .annotate(day=TruncDate('date_start'))  # Extract the date (without time)
-                .values('day')  # Group by day
-                .annotate(total_duration=Sum('duration'))  # Sum durations for each day
-                .order_by('day')  # Sort results by date
-            )
+            hours_per_day = self.seminar_time_per_day
             # Calculate the total number of seminar days
             # Each day is counted as 1 if total_duration is >= 5 hours, as 0.5 if total_duration is >= 2.5
             # otherwise 0
-            return sum([min(math.floor(h['total_duration']/cvt_to_decimal(2.5))/2, 1) for h in hours_per_day])
+            sum_days = sum([h['sum_days'] for h in hours_per_day])
+            print(hours_per_day)
+            print(sum_days)
+            return sum_days
         else:
             return 0
 
+
+    @property
+    def seminar_time_per_day(self):
+        if hasattr(self, 'ljpproposal'):
+            return (
+                self.ljpproposal.intervention_set
+                .annotate(day=Cast('date_start', output_field=models.DateField()))  # Force it to date
+                .values('day')  # Group by day
+                .annotate(total_duration=Sum('duration'))# Sum durations for each day
+                .annotate(
+                    sum_days=Case(
+                        When(total_duration__gt=5.0, then=Value(1.0)),
+                        When(total_duration__gt=2.5, then=Value(0.5)),
+                        default=Value(0.0),)
+                )
+                .order_by('day')  # Sort results by date
+            )
+        else:
+            return []
+
     @property
     def ljp_duration(self):
         """calculate the duration in days for the LJP"""

jdav_web/members/templates/admin/freizeit_finance_overview.html

@@ -141,6 +141,26 @@ This results in a total contribution of {{ ljp_contributions }}€.
 To receive them, you need to submit the LJP-Proposal within 3 weeks after your excursion and have it approved by the finance office.{% endblocktrans %}
 </p>
 
+<table>
+    <tr>
+        <td></td>
+        <td>{% trans "Seminar hours" %}</td>
+        <td>{% trans "Seminar days" %}</td>
+    </tr>
+{% for day in memberlist.seminar_time_per_day %}
+    <tr>
+        <td>{{ day.day }}</td>
+        <td>{{ day.total_duration }}</td>
+        <td>{{ day.sum_days }}</td>
+    </tr>
+    {% endfor %}
+    <tr>
+        <td><b>{% trans "Sum" %}</b></td>
+        <td></td>
+        <td>{{ total_seminar_days }}</td>
+    </tr>
+</table>
+
 <p>
     {% blocktrans %}The LJP contributions are configured to be paid to:{% endblocktrans %}
     <table>