feat: create wallet if user does not have one (#3566)

tests/unit/test_crud_users.py

@@ -0,0 +1,38 @@
+from uuid import uuid4
+
+import pytest
+
+from lnbits.core.crud.users import get_user_from_account
+from lnbits.core.crud.wallets import delete_wallet, get_wallets
+from lnbits.core.models.users import Account
+from lnbits.core.services.users import create_user_account
+
+
+@pytest.mark.anyio
+async def test_get_user_from_account_is_wallet_created():
+
+    username = f"user_{uuid4().hex[:8]}"
+    account = Account(
+        id=uuid4().hex,
+        username=username,
+        email=f"{username}@lnbits.com",
+    )
+    account.hash_password("secret1234")
+    user = await create_user_account(account)
+
+    assert user is not None
+    assert (
+        len(user.wallets) == 1
+    ), "A wallet should be created for the user if none exist"
+
+    await delete_wallet(user_id=account.id, wallet_id=user.wallets[0].id)
+
+    wallets = await get_wallets(account.id, deleted=False)
+    assert len(wallets) == 0, "User should have no wallets after deletion"
+
+    user = await get_user_from_account(account)
+
+    assert user is not None
+    assert (
+        len(user.wallets) == 1
+    ), "A new wallet should be created for the user if none exist after deletion"