feat: include friend emails in list

app/api/friend.py

@@ -1,7 +1,12 @@
 from fastapi import APIRouter, Depends, HTTPException
 from sqlalchemy.orm import Session
 from app.core.deps import get_db, get_current_user
-from app.schemas.friend import FriendRequestCreate, FriendRequestResponse, FriendResponse
+from app.schemas.friend import (
+    FriendRequestCreate,
+    FriendRequestResponse,
+    FriendResponse,
+    FriendListItem,
+)
 from app.schemas.character import CharacterResponse
 from app.services import friend_service
 from app.models.user import User
@@ -55,7 +60,7 @@ def respond_to_request(
     return {"detail": "요청을 처리했습니다."}
 
 
-@router.get("/list", response_model=list[int])
+@router.get("/list", response_model=list[FriendListItem])
 def get_friend_list(
     db: Session = Depends(get_db),
     current_user: User = Depends(get_current_user)

app/schemas/friend.py

@@ -18,6 +18,8 @@ class FriendRequestResponse(BaseModel):
     id: int
     from_user_id: int
     to_user_id: int
+    from_user_email: str | None = None
+    to_user_email: str | None = None
     status: FriendRequestStatus
     created_at: datetime
     updated_at: datetime
@@ -34,3 +36,11 @@ class FriendResponse(BaseModel):
 
     class Config:
         orm_mode = True
+
+
+class FriendListItem(BaseModel):
+    id: int
+    email: str
+
+    class Config:
+        orm_mode = True

app/services/friend_service.py

@@ -1,4 +1,5 @@
-from sqlalchemy.orm import Session
+from sqlalchemy.orm import Session, aliased
+from sqlalchemy import select
 from app.models.friend import FriendRequest, Friend, FriendRequestStatus
 from app.models.user import User
 from app.models.character import Character, CharacterHomework
@@ -44,17 +45,51 @@ def send_friend_request(db: Session, from_user_id: int, to_user_email: str):
 
 
 def get_received_requests(db: Session, user_id: int):
-    return db.query(FriendRequest).filter(
-        FriendRequest.to_user_id == user_id,
-        FriendRequest.status == FriendRequestStatus.pending
-    ).all()
+    sender = aliased(User)
+    receiver = aliased(User)
+    stmt = (
+        select(
+            FriendRequest.id,
+            FriendRequest.from_user_id,
+            FriendRequest.to_user_id,
+            sender.email.label("from_user_email"),
+            receiver.email.label("to_user_email"),
+            FriendRequest.status,
+            FriendRequest.created_at,
+            FriendRequest.updated_at,
+        )
+        .join(sender, FriendRequest.from_user_id == sender.id)
+        .join(receiver, FriendRequest.to_user_id == receiver.id)
+        .where(
+            FriendRequest.to_user_id == user_id,
+            FriendRequest.status == FriendRequestStatus.pending,
+        )
+    )
+    return db.execute(stmt).mappings().all()
 
 
 def get_sent_requests(db: Session, user_id: int):
-    return db.query(FriendRequest).filter(
-        FriendRequest.from_user_id == user_id,
-        FriendRequest.status == FriendRequestStatus.pending
-    ).all()
+    sender = aliased(User)
+    receiver = aliased(User)
+    stmt = (
+        select(
+            FriendRequest.id,
+            FriendRequest.from_user_id,
+            FriendRequest.to_user_id,
+            sender.email.label("from_user_email"),
+            receiver.email.label("to_user_email"),
+            FriendRequest.status,
+            FriendRequest.created_at,
+            FriendRequest.updated_at,
+        )
+        .join(sender, FriendRequest.from_user_id == sender.id)
+        .join(receiver, FriendRequest.to_user_id == receiver.id)
+        .where(
+            FriendRequest.from_user_id == user_id,
+            FriendRequest.status == FriendRequestStatus.pending,
+        )
+    )
+    return db.execute(stmt).mappings().all()
 
 
 def cancel_sent_request(db: Session, request_id: int, user_id: int):
@@ -104,7 +139,9 @@ def get_friend_list(db: Session, user_id: int):
     result = []
     for f in friends:
         friend_id = f.user_id_2 if f.user_id_1 == user_id else f.user_id_1
-        result.append(friend_id)
+        friend = db.query(User).filter(User.id == friend_id).first()
+        friend_email = friend.email if friend else None
+        result.append({"id": friend_id, "email": friend_email})
 
     return result