Make create house work

backend/app/main.py

@@ -1,9 +1,10 @@
-from fastapi import FastAPI
+from fastapi import FastAPI, Depends
 from fastapi.middleware.cors import CORSMiddleware
 
 from .providers.db_provider import create_db_and_tables
 from .routers.houses import router as houses_router
 from .routers.owners import router as owners_router
+from .middleware.authenticate import authenticate
 
 from contextlib import asynccontextmanager
 
@@ -16,7 +17,8 @@ app = FastAPI(
     title="Fair Housing API",
     description="Provides access to core functionality for the fair housing platform.",
     version="1.0.0",
-    lifespan=lifespan
+    lifespan=lifespan,
+    dependencies=[Depends(authenticate)],
 )
 
 app.add_middleware(

backend/app/middleware/authenticate.py

@@ -0,0 +1,16 @@
+from fastapi import Request, Depends
+from typing import Annotated
+from ..settings import get_settings
+from ..repositories.user_repository import UserRepository
+
+async def authenticate(request: Request, user_repository: Annotated[UserRepository, Depends()]) -> bool:
+    """
+    Authenticate the current request.
+    """
+    mocked_user = await user_repository.get_by_email(get_settings().app.mock_user_email)
+
+    if not mocked_user:
+        raise Exception("Mock user not found.")
+    
+    request.state.user = mocked_user
+    return True

backend/app/models/house.py

@@ -8,4 +8,4 @@ class House(SQLModel, table=True):
     country: str = Field()
     price: float = Field()
     description: str = Field()
-    owner_id: UUID = Field(foreign_key="owner.id")
+    owner_id: UUID = Field(foreign_key="user.id") # TODO consider using owner.id

backend/app/models/user.py

@@ -2,7 +2,6 @@ from sqlmodel import SQLModel, Field
 from uuid import uuid4, UUID
 
 class User(SQLModel, table=True):
-    id: UUID = Field(default_factory=uuid4, primary_key=True)
-    username: str = Field(unique=True, nullable=False)
+    id: UUID = Field(default_factory=lambda: uuid4(), primary_key=True)
     email: str = Field(unique=True, nullable=False)
     password_hash: str = Field(nullable=False)

backend/app/providers/auth_provider.py

@@ -2,6 +2,9 @@ from ..errors.not_authenticated import NotAuthenticatedError
 from ..models.user import User
 from ..settings import get_settings
 
+from ..repositories.user_repository import UserRepository
+from typing import Annotated
+from fastapi import Depends, Request
 
 class AuthContext:
     """
@@ -10,23 +13,16 @@ class AuthContext:
 
     def __init__(
         self,
+        request: Request,        
     ) -> None:
         if not get_settings().environment == "development":
             raise NotImplementedError("AuthProvider is only implemented for development environment.")
         
-        self._authenticated_user = self._get_mocked_user()
-
-
-    def _get_mocked_user(self):
-        return User(
-            email="test@test.com",
-            username="test",
-            password_hash="test",
-        )
+        self._authenticated_user = request.state.user
 
     @property
     def is_authenticated(self) -> bool:
-        return self._authenticated_user is not None
+        return bool(self._authenticated_user)
 
     @property
     def user(self) -> User:

backend/app/providers/db_provider.py

@@ -10,7 +10,9 @@ from sqlalchemy.ext.asyncio import (
     create_async_engine,
 )
 from sqlmodel import create_engine, SQLModel
+from sqlalchemy.orm import Session
 
+from ..models.user import User
 
 from ..settings import get_settings
 
@@ -56,8 +58,25 @@ def _get_engine() -> Engine:
     )
 
 
+def _seed_db():
+    if settings.app.environment != "development":
+        return
+
+    session = Session(_get_engine())
+
+    existing_user = session.query(User).filter(User.email == settings.app.mock_user_email).first()
+    if not existing_user:
+        mock_user = User(
+            email=settings.app.mock_user_email,
+            password_hash="test",
+        )
+        session.add(mock_user)
+        session.commit()
+
+    session.close()
+
+
 def create_db_and_tables():
     engine = _get_engine()
     SQLModel.metadata.create_all(engine)
-
-    # TODO: add seeding
+    _seed_db()

backend/app/repositories/user_repository.py

@@ -1,7 +1,7 @@
 from sqlalchemy.ext.asyncio.session import AsyncSession
 from typing import Annotated
 from fastapi import Depends
-from app.providers.db_provider import get_session
+from ..providers.db_provider import get_session
 from ..models.user import User
 from sqlmodel import select
 
@@ -15,6 +15,11 @@ class UserRepository:
         statement = select(User).where(User.id == user_id)
         result = await self.session.execute(statement)
         return result.scalar_one_or_none()
+    
+    async def get_by_email(self, email: str):
+        statement = select(User).where(User.email == email)
+        result = await self.session.execute(statement)
+        return result.scalar_one_or_none()
 
     async def save(self, user: User) -> None:
         """

backend/app/routers/houses.py

@@ -24,7 +24,7 @@ async def create_house(body: HouseCreateRequest, auth: Annotated[AuthContext, De
     await house_repository.save(house)
 
     return HouseCreateResponse(
-        id=house.id
+        id=str(house.id)
     )
 
 

backend/app/settings.py

@@ -13,7 +13,7 @@ class _BaseConfig(BaseSettings):
     environment: str = Field(default=os.getenv("ENVIRONMENT", "development"))
     
 class _AppSettings(_BaseConfig):
-    pass
+    mock_user_email: str = "test@test.com"
 
 class _DbSettings(_BaseConfig):
     username: str = Field(default=os.getenv("PG_USER"))