add core app skelly

apps/core/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

apps/core/api.py

@@ -0,0 +1,51 @@
+from ninja import NinjaAPI
+from ninja import Schema
+import datetime
+from ..accounts.models import User
+from .models import ThingEdit, Thing as ThingModel
+
+api = NinjaAPI()
+
+
+class Thing(Schema):
+    id: int
+    data: dict
+    type: str
+
+
+def get_user_from_key(key: str):
+    # TODO: something real
+    return User.objects.get(username=key)
+
+
+@api.post("/thing/")
+def sync_thing(request, key: str, thing: Thing):
+    user = get_user_from_key(key)
+    action = "none"
+    try:
+        old_thing = ThingModel.objects.get(user=user, thing_id=thing.id)
+        if old_thing.data != thing.data:
+            ThingEdit.objects.create(
+                thing=old_thing,
+                data=old_thing.data,
+                timestamp=old_thing.synced_at,
+            )
+            old_thing.data = thing.data
+            old_thing.synced_at = datetime.datetime.utcnow()
+            old_thing.save()
+            thing = old_thing
+            action = "updated"
+    except ThingModel.DoesNotExist:
+        thing = ThingModel.objects.create(
+            user=user, thing_id=thing.id, data=thing.data, type=thing.type
+        )
+        action = "created"
+    # TODO: deleted
+    return {"action": action}
+
+
+@api.get("/thing/{id}")
+def get_thing(request, id: int, key: str):
+    user = get_user_from_key(key)
+    thing = ThingModel.objects.get(user=user, thing_id=id)
+    return thing.data

apps/core/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class CoreConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "apps.core"

apps/core/migrations/0001_initial.py

@@ -0,0 +1,64 @@
+# Generated by Django 5.2 on 2025-05-04 00:55
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Thing",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
+                    ),
+                ),
+                ("thing_id", models.PositiveIntegerField()),
+                ("data", models.JSONField()),
+                ("created_at", models.DateTimeField()),
+                ("synced_at", models.DateTimeField()),
+                ("deleted", models.BooleanField()),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="things",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+            options={
+                "unique_together": {("thing_id", "user_id")},
+            },
+        ),
+        migrations.CreateModel(
+            name="ThingEdit",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
+                    ),
+                ),
+                ("data", models.JSONField()),
+                ("timestamp", models.DateTimeField()),
+                (
+                    "thing",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="edits",
+                        to="core.thing",
+                    ),
+                ),
+            ],
+        ),
+    ]

apps/core/models.py

@@ -0,0 +1,20 @@
+from django.db import models
+from ..accounts.models import User
+
+
+class Thing(models.Model):
+    thing_id = models.PositiveIntegerField()
+    user = models.ForeignKey(User, related_name="things", on_delete=models.CASCADE)
+    data = models.JSONField()
+    created_at = models.DateTimeField()
+    synced_at = models.DateTimeField()
+    deleted = models.BooleanField()
+
+    class Meta:
+        unique_together = ("thing_id", "user_id")
+
+
+class ThingEdit(models.Model):
+    thing = models.ForeignKey(Thing, related_name="edits", on_delete=models.CASCADE)
+    data = models.JSONField()
+    timestamp = models.DateTimeField()

apps/core/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

apps/core/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

config/settings.py

@@ -70,6 +70,7 @@ INSTALLED_APPS = [
     "django_structlog",
     "django_typer",
     "apps.accounts",
+    "apps.core",
 ]
 
 MIDDLEWARE = [