first commit

backend/app/services/settings_service.py

@@ -0,0 +1,32 @@
+from sqlalchemy.orm import Session
+
+from app.models.settings import GlobalSettings
+from app.schemas.settings import SettingsUpdate
+
+
+class SettingsService:
+    def get_or_create(self, db: Session) -> GlobalSettings:
+        settings = db.query(GlobalSettings).first()
+        if not settings:
+            settings = GlobalSettings()
+            db.add(settings)
+            db.commit()
+            db.refresh(settings)
+        return settings
+
+    def update(self, db: Session, payload: SettingsUpdate) -> GlobalSettings:
+        settings = self.get_or_create(db)
+        data = payload.model_dump(exclude={'clear_global_ssh_key'})
+        for key, value in data.items():
+            if key == 'global_ssh_key' and value is None and not payload.clear_global_ssh_key:
+                continue
+            setattr(settings, key, value)
+        if payload.clear_global_ssh_key:
+            settings.global_ssh_key = None
+        db.add(settings)
+        db.commit()
+        db.refresh(settings)
+        return settings
+
+
+settings_service = SettingsService()