scaffolded PySwiss microservice: Django 6.0 project at pyswiss/ (core/ settings, apps/charts/), GET /api/chart/ + GET /api/charts/ views, EphemerisSnapshot model + migration, populate_ephemeris management command, 41 ITs (integrated + unit, all green); separate .venv with pyswisseph 2.10.3.2

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pyswiss/apps/charts/management/commands/populate_ephemeris.py

@@ -0,0 +1,49 @@
+from datetime import date, datetime, timedelta, timezone
+
+from django.core.management.base import BaseCommand
+
+from apps.charts.calc import get_element_counts, get_julian_day, get_planet_positions, set_ephe_path
+from apps.charts.models import EphemerisSnapshot
+
+
+class Command(BaseCommand):
+    help = 'Pre-compute ephemeris snapshots for a date range (one per day at noon UTC).'
+
+    def add_arguments(self, parser):
+        parser.add_argument('--date-from', required=True, help='Start date (YYYY-MM-DD)')
+        parser.add_argument('--date-to',   required=True, help='End date (YYYY-MM-DD, inclusive)')
+
+    def handle(self, *args, **options):
+        set_ephe_path()
+
+        date_from = date.fromisoformat(options['date_from'])
+        date_to   = date.fromisoformat(options['date_to'])
+
+        current = date_from
+        count = 0
+        while current <= date_to:
+            dt = datetime(current.year, current.month, current.day,
+                          12, 0, 0, tzinfo=timezone.utc)
+            jd = get_julian_day(dt)
+            planets = get_planet_positions(jd)
+            elements = get_element_counts(planets)
+
+            EphemerisSnapshot.objects.update_or_create(
+                dt=dt,
+                defaults={
+                    'fire':     elements['Fire'],
+                    'water':    elements['Water'],
+                    'earth':    elements['Earth'],
+                    'air':      elements['Air'],
+                    'time_el':  elements['Time'],
+                    'space_el': elements['Space'],
+                    'chart_data': {'planets': planets},
+                },
+            )
+            current += timedelta(days=1)
+            count += 1
+
+        if options['verbosity'] > 0:
+            self.stdout.write(
+                self.style.SUCCESS(f'Created/updated {count} snapshot(s).')
+            )