fixed balance write-off in gifts/ added settings in api

api/routes/settings.py

@@ -0,0 +1,66 @@
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from api.depends import get_session, verify_admin_token
+from api.schemas.settings import SettingResponse, SettingUpsert
+from database.models import Setting
+from database.settings import set_setting
+
+
+router = APIRouter()
+
+
+@router.get("/", response_model=list[SettingResponse])
+async def get_all_settings(
+    admin=Depends(verify_admin_token),
+    session: AsyncSession = Depends(get_session),
+):
+    result = await session.execute(select(Setting))
+    return result.scalars().all()
+
+
+@router.get("/{key}", response_model=SettingResponse)
+async def get_setting_by_key(
+    key: str,
+    admin=Depends(verify_admin_token),
+    session: AsyncSession = Depends(get_session),
+):
+    result = await session.execute(select(Setting).where(Setting.key == key))
+    obj = result.scalar_one_or_none()
+    if not obj:
+        raise HTTPException(status_code=404, detail="Setting not found")
+    return obj
+
+
+@router.post("/{key}", response_model=SettingResponse)
+async def upsert_setting(
+    key: str,
+    payload: SettingUpsert,
+    admin=Depends(verify_admin_token),
+    session: AsyncSession = Depends(get_session),
+):
+    obj = await set_setting(
+        session=session,
+        key=key,
+        value=payload.value,
+        description=payload.description,
+    )
+    await session.commit()
+    await session.refresh(obj)
+    return obj
+
+
+@router.delete("/{key}", response_model=dict)
+async def delete_setting(
+    key: str,
+    admin=Depends(verify_admin_token),
+    session: AsyncSession = Depends(get_session),
+):
+    result = await session.execute(select(Setting).where(Setting.key == key))
+    obj = result.scalar_one_or_none()
+    if not obj:
+        raise HTTPException(status_code=404, detail="Setting not found")
+    await session.delete(obj)
+    await session.commit()
+    return {"detail": "Setting deleted"}