Add default settings to let new users be subscribed on trial

- Add the default user to a subscription trial
- Update associated unit tests

src/database/adapters/__init__.py

@@ -101,6 +101,8 @@ async def create_google_user(token: dict) -> KhojUser:
         user=user,
     )
 
+    await Subscription.objects.acreate(user=user, type="trial")
+
     return user
 
 

src/database/admin.py

@@ -8,6 +8,7 @@ from database.models import (
     ChatModelOptions,
     OpenAIProcessorConversationConfig,
     OfflineChatProcessorConversationConfig,
+    Subscription,
 )
 
 admin.site.register(KhojUser, UserAdmin)
@@ -15,3 +16,4 @@ admin.site.register(KhojUser, UserAdmin)
 admin.site.register(ChatModelOptions)
 admin.site.register(OpenAIProcessorConversationConfig)
 admin.site.register(OfflineChatProcessorConversationConfig)
+admin.site.register(Subscription)

src/database/migrations/0015_alter_subscription_user.py

@@ -0,0 +1,21 @@
+# Generated by Django 4.2.5 on 2023-11-11 05:39
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("database", "0014_alter_googleuser_picture"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="subscription",
+            name="user",
+            field=models.OneToOneField(
+                on_delete=django.db.models.deletion.CASCADE, related_name="subscription", to=settings.AUTH_USER_MODEL
+            ),
+        ),
+    ]

src/database/migrations/0016_alter_subscription_renewal_date.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.2.5 on 2023-11-11 06:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("database", "0015_alter_subscription_user"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="subscription",
+            name="renewal_date",
+            field=models.DateTimeField(blank=True, default=None, null=True),
+        ),
+    ]

src/database/models/__init__.py

@@ -51,10 +51,10 @@ class Subscription(BaseModel):
         TRIAL = "trial"
         STANDARD = "standard"
 
-    user = models.OneToOneField(KhojUser, on_delete=models.CASCADE)
+    user = models.OneToOneField(KhojUser, on_delete=models.CASCADE, related_name="subscription")
     type = models.CharField(max_length=20, choices=Type.choices, default=Type.TRIAL)
     is_recurring = models.BooleanField(default=False)
-    renewal_date = models.DateTimeField(null=True, default=None)
+    renewal_date = models.DateTimeField(null=True, default=None, blank=True)
 
 
 class NotionConfig(BaseModel):