add user password hasher and depebdency

api/application/contracts/user/__init__.py

@@ -1,4 +1,9 @@
-from .user_request import UserCreateRequest
+from .user_request import GetUserByEmailRequest, UserCreateRequest
 from .user_response import UserDetaledResponse, UserResponse
 
-__all__ = ("UserResponse", "UserDetaledResponse", "UserCreateRequest")
+__all__ = (
+    "UserResponse",
+    "UserDetaledResponse",
+    "UserCreateRequest",
+    "GetUserByEmailRequest",
+)

api/application/contracts/user/user_request.py

@@ -6,3 +6,8 @@ class UserCreateRequest:
     name: str
     email: str
     password: str
+
+
+@dataclass(frozen=True)
+class GetUserByEmailRequest:
+    email: str

api/application/protocols/password_hasher.py

@@ -0,0 +1,11 @@
+from typing import Protocol
+
+
+class PasswordHasher(Protocol):
+    @staticmethod
+    def hash_password(password: str) -> str:
+        raise NotImplementedError
+
+    @staticmethod
+    def verify_password(password: str, hashed_password: str) -> bool:
+        raise NotImplementedError

api/application/usecase/user/create_user.py

@@ -1,15 +1,26 @@
 from api.application.abstractions import UnitOfWork
 from api.application.contracts.user.user_request import UserCreateRequest
+from api.application.protocols.password_hasher import PasswordHasher
 from api.domain.user.model import User
 from api.domain.user.repository import UserRepository
 
 
 class CreateUser:
-    def __init__(self, uow: UnitOfWork, user_repository: UserRepository) -> None:
+    def __init__(
+        self,
+        uow: UnitOfWork,
+        user_repository: UserRepository,
+        password_hasher: PasswordHasher,
+    ) -> None:
         self.uow = uow
         self.user_repository = user_repository
+        self.hasher = password_hasher
 
     async def execute(self, request: UserCreateRequest) -> None:
-        user = User.create(name=request.name, email=request.email, password=request.password)
+        user = User.create(
+            name=request.name,
+            email=request.email,
+            hashed_password=self.hasher.hash_password(request.password),
+        )
         await self.user_repository.create_user(user=user)
         await self.uow.commit()

api/application/usecase/user/get_user_by_email.py

@@ -0,0 +1,15 @@
+from api.application.abstractions import UnitOfWork
+from api.application.contracts.user import GetUserByEmailRequest, UserResponse
+from api.domain.user.repository import UserRepository
+
+
+class GetUserByEmail:
+    def __init__(self, uow: UnitOfWork, user_repository: UserRepository) -> None:
+        self.uow = uow
+        self.user_repository = user_repository
+
+    async def execute(self, request: GetUserByEmailRequest) -> UserResponse | None:
+        user = await self.user_repository.get_user(filter={"email": request.email})
+        if user:
+            return None
+        return None