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backend/app/api/users/update_me.py

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+from fastapi import APIRouter, Depends, HTTPException, Request, status
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.database.session import get_session
+from app.models import User
+from app.schemas.users_sch import UserResponse, UserUpdateMe
+from app.utils.business_logger import log_business_event
+from app.utils.token_manager import get_current_user
+
+router = APIRouter(tags=["Users"])
+
+
+@router.patch("/me", response_model=UserResponse)
+async def update_me(
+    data: UserUpdateMe,
+    request: Request,
+    session: AsyncSession = Depends(get_session),
+    current_user: User = Depends(get_current_user),
+):
+    trace_id = getattr(request.state, "traceId", None)
+
+    if data.email and data.email != current_user.email:
+        stmt = select(User).where(User.email == data.email)
+        result = await session.execute(stmt)
+        if result.scalar_one_or_none():
+            log_business_event(
+                "user_profile_update_rejected",
+                trace_id=trace_id,
+                user_id=str(current_user.id),
+                reason="email_already_exists",
+                requested_email=data.email,
+            )
+            raise HTTPException(
+                status_code=status.HTTP_409_CONFLICT,
+                detail="Пользователь с таким email уже существует",
+            )
+
+    update_data = data.model_dump(exclude_unset=True)
+    for key, value in update_data.items():
+        setattr(current_user, key, value)
+
+    await session.commit()
+    await session.refresh(current_user)
+    log_business_event(
+        "user_profile_updated",
+        trace_id=trace_id,
+        user_id=str(current_user.id),
+        updated_fields=sorted(update_data.keys()),
+    )
+    return current_user