feat: improve admin and add demo data command

backend/shows/management/commands/__init__.py

@@ -0,0 +1 @@
+

backend/shows/management/commands/seed_demo_data.py

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+import sys
+from datetime import datetime
+from datetime import timedelta
+
+from django.conf import settings
+from django.core.management.base import BaseCommand, CommandError
+from django.utils import timezone
+
+from shows.models import Performance, Show, Venue
+
+
+class Command(BaseCommand):
+    help = "Create or update local demo data for AzioneLab."
+
+    def handle(self, *args, **options):
+        if not settings.DEBUG and "test" not in sys.argv:
+            raise CommandError("seed_demo_data is available only in local or test environments.")
+
+        today = timezone.localdate()
+
+        venues = [
+            {
+                "name": "AzioneLab Theatre",
+                "slug": "azionelab-theatre",
+                "address": "Via Example 1",
+                "city": "Rome",
+                "notes": "Main house for evening performances.",
+            },
+            {
+                "name": "Studio Nuovo",
+                "slug": "studio-nuovo",
+                "address": "Via Example 22",
+                "city": "Rome",
+                "notes": "Smaller venue for workshops and matinees.",
+            },
+        ]
+        shows = [
+            {
+                "title": "Open Stage",
+                "slug": "open-stage",
+                "summary": "A contemporary theatre performance.",
+                "description": "A compact demo production for manual backend testing.",
+                "poster_image": "",
+                "is_published": True,
+            },
+            {
+                "title": "City Echoes",
+                "slug": "city-echoes",
+                "summary": "An ensemble piece set across modern Rome.",
+                "description": "A second published show with a different venue mix.",
+                "poster_image": "",
+                "is_published": True,
+            },
+        ]
+
+        venue_map = {}
+        show_map = {}
+
+        for venue_data in venues:
+            venue, _ = Venue.objects.update_or_create(
+                slug=venue_data["slug"],
+                defaults=venue_data,
+            )
+            venue_map[venue.slug] = venue
+
+        for show_data in shows:
+            show, _ = Show.objects.update_or_create(
+                slug=show_data["slug"],
+                defaults=show_data,
+            )
+            show_map[show.slug] = show
+
+        performances = [
+            {
+                "show": show_map["open-stage"],
+                "venue": venue_map["azionelab-theatre"],
+                "starts_at": self._performance_starts_at(today + timedelta(days=7), hour=20, minute=30),
+                "room_capacity": 120,
+                "manually_occupied_seats": 8,
+                "additional_seats": 4,
+                "is_booking_enabled": True,
+            },
+            {
+                "show": show_map["open-stage"],
+                "venue": venue_map["studio-nuovo"],
+                "starts_at": self._performance_starts_at(today + timedelta(days=14), hour=18, minute=0),
+                "room_capacity": 60,
+                "manually_occupied_seats": 2,
+                "additional_seats": 0,
+                "is_booking_enabled": True,
+            },
+            {
+                "show": show_map["city-echoes"],
+                "venue": venue_map["azionelab-theatre"],
+                "starts_at": self._performance_starts_at(today + timedelta(days=21), hour=20, minute=30),
+                "room_capacity": 140,
+                "manually_occupied_seats": 12,
+                "additional_seats": 6,
+                "is_booking_enabled": True,
+            },
+        ]
+
+        created_or_updated = 0
+        for performance_data in performances:
+            _, _created = Performance.objects.update_or_create(
+                show=performance_data["show"],
+                venue=performance_data["venue"],
+                starts_at=performance_data["starts_at"],
+                defaults={
+                    "room_capacity": performance_data["room_capacity"],
+                    "manually_occupied_seats": performance_data["manually_occupied_seats"],
+                    "additional_seats": performance_data["additional_seats"],
+                    "is_booking_enabled": performance_data["is_booking_enabled"],
+                },
+            )
+            created_or_updated += 1
+
+        self.stdout.write(
+            self.style.SUCCESS(
+                f"Demo data ready: {len(show_map)} shows, {len(venue_map)} venues, {created_or_updated} performances."
+            )
+        )
+
+    def _performance_starts_at(self, day, *, hour, minute):
+        naive = datetime.combine(day, datetime.min.time()).replace(hour=hour, minute=minute)
+        return timezone.make_aware(naive, timezone.get_current_timezone())