Process schedule.json with Python instead of Go templates

.drone.yml

@@ -5,6 +5,11 @@ type: docker
 name: default
 
 steps:
+  - name: fetch-schedule
+    image: python:3.10-alpine
+    commands:
+      - bin/fetch_schedule.py
+
   - name: build
     image: klakegg/hugo:ext-alpine-ci
     when:

.gitignore

@@ -1,3 +1,4 @@
 .hugo_build.lock
+data/schedule.json
 public/
 resources/_gen/

bin/fetch_schedule.py

@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+
+from datetime import datetime, timedelta
+from json import dumps, loads
+from pathlib import Path
+from urllib.request import urlopen
+from zoneinfo import ZoneInfo
+
+GRANULARITY = 30
+SCHEDULE_URL = 'https://cfp.fairydust.reisen/iger-2022/schedule/export/schedule.json'
+TIMEZONE = 'Europe/Berlin'
+
+def parse_duration(s, num_parts):
+    duration = 0
+    for t in s.split(':', maxsplit=num_parts-1):
+        duration *= 60
+        duration += int(t)
+
+    return duration
+
+def main():
+    with urlopen(SCHEDULE_URL) as f:
+        data = loads(f.read())
+
+    conference = data['schedule']['conference']
+
+    rooms = {}
+    for day in conference['days']:
+        for room in conference['rooms']:
+            name = room['name']
+            if name not in day['rooms']:
+                continue
+            if name not in rooms:
+                rooms[name] = []
+
+            rooms[name] += day['rooms'][name]
+
+    timezone = ZoneInfo(TIMEZONE)
+
+    start_date = None
+    end_date = None
+    for _, events in rooms.items():
+        for event in events:
+            date = datetime.fromisoformat(event['date']).astimezone(timezone)
+            if start_date is None or date < start_date:
+                start_date = date
+
+            event['start_date'] = date
+
+            date += timedelta(seconds=parse_duration(event['duration'], 2)*60)
+            if end_date is None or date > end_date:
+                end_date = date
+
+            event['end_date'] = date
+
+    timeline = []
+    timeslot = parse_duration(conference['timeslot_duration'], 2)
+    for offset in range(0, int((end_date-start_date).total_seconds()), GRANULARITY*60):
+        date = start_date + timedelta(seconds=offset)
+        timeline.append({'date': date.strftime('%Y-%m-%d'), 'start': offset//(timeslot*60)+1, 'time': date.strftime('%H:%M')})
+
+    out_data = {
+        'days': [day['date'] for day in conference['days']],
+        'end_date': end_date.isoformat(timespec='seconds'),
+        'rooms': {name: [{
+            'end': int((event['end_date']-start_date).total_seconds())//(timeslot*60)+1,
+            'end_time': event['end_date'].strftime('%H:%M'),
+            'speaker': ', '.join(person['public_name'] for person in event['persons']),
+            'start': int((event['start_date']-start_date).total_seconds())//(timeslot*60)+1,
+            'start_time': event['start_date'].strftime('%H:%M'),
+            'title': event['title'],
+            'url': event['url'],
+        } for event in events] for name, events in rooms.items()},
+        'span': GRANULARITY // timeslot,
+        'start_date': start_date.isoformat(timespec='seconds'),
+        'timeline': timeline,
+        'timezone': TIMEZONE,
+        'version': data['schedule']['version'],
+    }
+
+    with open(Path(__file__).resolve().parent.parent / 'data' / 'schedule.json', 'w') as f:
+        f.write(dumps(out_data))
+
+if __name__ == '__main__':
+    main()

content/pages/schedule.md

@@ -9,4 +9,4 @@ menu:
 Wir werden in den nächsten Tagen nach und nach weitere Programmpunkte veröffentlichen.
 Bitte beachtet, dass die zeitliche Planung sich aktuell noch jederzeit ändern kann.
 
-{{<schedule url="https://cfp.fairydust.reisen/iger-2022/schedule/export/schedule.json">}}
+{{<schedule>}}

layouts/shortcodes/schedule.html

@@ -1,102 +1,47 @@
-{{ $data := getJSON (.Get "url") }}
-{{ with $data.schedule }}
-
-{{ $timeslotDuration := 0 }}
-{{ range split .conference.timeslot_duration ":" }}
-	{{ $timeslotDuration = add (mul $timeslotDuration 60) (int .) }}
-{{ end }}
-
-{{ $rooms := dict }}
-{{ range $day := .conference.days }}
-	{{ range $room := $data.schedule.conference.rooms }}
-		{{ with index $day.rooms $room.name }}
-			{{ if index $rooms $room.name }}
-				{{ $rooms = merge $rooms (dict $room.name ((index $rooms $room.name) | append .)) }}
-			{{ else }}
-				{{ $rooms = merge $rooms (dict $room.name .) }}
-			{{ end }}
-		{{ end }}
-	{{ end }}
-{{ end }}
-
-{{ $events := slice }}
-{{ range $rooms }}
-	{{ with . }}
-		{{ if $events }}
-			{{ $events = $events | append . }}
-		{{ else }}
-			{{ $events = . }}
-		{{ end }}
-	{{ end }}
-{{ end }}
-
-{{ $events = sort $events "date" }}
-{{ $startDate := time (index $events 0).date }}
-{{ $endDate := 0 }}
-{{ with index $events (sub (len $events) 1) }}
-	{{ $lastDuration := 0 }}
-	{{ range split .duration ":" }}
-		{{ $lastDuration = add (mul $lastDuration 60) (int .) }}
-	{{ end }}
-	{{ $endDate = time (add (time .date).Unix (mul $lastDuration 60)) }}
-{{ end }}
-
+{{ with $.Site.Data.schedule }}
 <p class="schedule-info">
 	Version: <span class="schedule-version">{{ .version }}</span>
-	<br>Zeitangaben in <span class="schedule-timezone">{{ $startDate.Format "MST" }}</span>
+	<br>Zeitangaben in <span class="schedule-timezone">{{ .timezone }}</span>
 </p>
 
 <div class="schedule-days">
-{{ range .conference.days }}
-	<a href="#{{ .date }}">{{ .date }}</a>&middot;
+{{ range .days }}
+	<a href="#{{ . }}">{{ . }}</a>&middot;
 {{ end }}
 	<a href="#">zurück nach oben</a>
 </div>
 
 <div class="schedule">
-	<div class="schedule-grid schedule-timeline" style="--span: {{ div 30 $timeslotDuration }}">
+	<div class="schedule-grid schedule-timeline" style="--span: {{ .span }}">
 		<h3 class="schedule-title"></h3>
-{{ $lastDate := 0 }}
-{{ range seq 1 (div 30 $timeslotDuration) (div ($endDate.Sub $startDate).Minutes $timeslotDuration) }}
-{{ $date := time (add $startDate.Unix (mul (sub . 1) (mul $timeslotDuration 60))) }}
-		<div class="schedule-time" style="--start: {{ . }}">
-{{ if or (not $lastDate) (ne ($date.Format "2006-01-02") ($lastDate.Format "2006-01-02")) }}
-			<div class="schedule-date" id="{{ $date.Format "2006-01-02" }}">{{ $date.Format "2006-01-02" }}</div>
+{{ $lastDate := "" }}
+{{ range .timeline }}
+		<div class="schedule-time" style="--start: {{ .start }}">
+{{ if ne .date $lastDate }}
+			<div class="schedule-date" id="{{ .date }}">{{ .date }}</div>
 {{ end }}
-			{{ $date.Format "15:04" }}
+			{{ .time }}
 		</div>
-{{ $lastDate = $date }}
+{{ $lastDate = .date }}
 {{ end }}
 	</div>
-{{ range sort $data.schedule.conference.rooms "name" }}
-{{ $name := .name }}
-{{ $room := index $rooms $name }}
-{{ with $room }}
+{{ range $name, $events := .rooms }}
 	<div class="schedule-grid schedule-room">
 		<h3 class="schedule-title">{{ $name }}</h3>
-{{ range . }}
-{{ $start := add (div ((time .date).Sub $startDate).Minutes $timeslotDuration) 1 }}
-{{ $duration := 0 }}
-{{ range split .duration ":" }}
-{{ $duration = add (mul $duration 60) (int .) }}
-{{ end }}
-{{ $end := add $start (div $duration $timeslotDuration) }}
-		<a class="schedule-event" href="{{ .url }}" style="--start: {{ $start }};--end: {{ $end }}" target="_blank">
+{{ range $events }}
+		<a class="schedule-event" href="{{ .url }}" style="--start: {{ .start }};--end: {{ .end }}" target="_blank">
 			<div class="schedule-event-time">
-				<span>{{ (time .date).Format "15:04" }}</span>
+				<span>{{ .start_time }}</span>
 				<span>&ndash;</span>
-				<span>{{ (time (int (add $startDate.Unix (mul (sub $end 1) (mul $timeslotDuration 60))))).Format "15:04" }}</span>
+				<span>{{ .end_time }}</span>
 			</div>
 			<div class="schedule-event-detail">
 				<h4 class="schedule-title" title="{{ .title }}">{{ .title }}</h4>
-{{ $speaker := delimit (apply .persons "index" "." "public_name") ", " }}
-				<p class="schedule-speaker" title="{{ $speaker }}">{{ $speaker }}</p>
+				<p class="schedule-speaker" title="{{ .speaker }}">{{ .speaker }}</p>
 			</div>
 		</a>
 {{ end }}
 	</div>
 {{ end }}
-{{ end }}
 </div>
-
 {{ end }}