feature: add system setting service (#12408)

### What problem does this PR solve?

#12409 

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

api/db/init_data.py

@@ -30,6 +30,7 @@ from api.db.services.knowledgebase_service import KnowledgebaseService
 from api.db.services.tenant_llm_service import LLMFactoriesService, TenantLLMService
 from api.db.services.llm_service import LLMService, LLMBundle, get_init_tenant_llm
 from api.db.services.user_service import TenantService, UserTenantService
+from api.db.services.system_settings_service import SystemSettingsService
 from api.db.joint_services.memory_message_service import init_message_id_sequence, init_memory_size_cache
 from common.constants import LLMType
 from common.file_utils import get_project_base_directory
@@ -158,13 +159,15 @@ def add_graph_templates():
                 CanvasTemplateService.save(**cnvs)
             except Exception:
                 CanvasTemplateService.update_by_id(cnvs["id"], cnvs)
-        except Exception:
-            logging.exception("Add agent templates error: ")
+        except Exception as e:
+            logging.exception(f"Add agent templates error: {e}")
 
 
 def init_web_data():
     start_time = time.time()
 
+    init_table()
+
     init_llm_factory()
     # if not UserService.get_all().count():
     #    init_superuser()
@@ -174,6 +177,31 @@ def init_web_data():
     init_memory_size_cache()
     logging.info("init web data success:{}".format(time.time() - start_time))
 
+def init_table():
+    # init system_settings
+    with open(os.path.join(get_project_base_directory(), "conf", "system_settings.json"), "r") as f:
+        records_from_file = json.load(f)["system_settings"]
+
+    record_index = {}
+    records_from_db = SystemSettingsService.get_all()
+    for index, record in enumerate(records_from_db):
+        record_index[record.name] = index
+
+    to_save = []
+    for record in records_from_file:
+        setting_name = record["name"]
+        if setting_name not in record_index:
+            to_save.append(record)
+
+    len_to_save = len(to_save)
+    if len_to_save > 0:
+        # not initialized
+        try:
+            SystemSettingsService.insert_many(to_save, len_to_save)
+        except Exception as e:
+            logging.exception("System settings init error: {}".format(e))
+            raise e
+
 
 if __name__ == '__main__':
     init_web_db()