feat(model): 增加模型管理和测试功能

- 新增模型删除功能
- 实现模型测试连接功能
- 优化模型选择器组件
- 更新模型相关API和数据库操作

backend/app/services/model.py

@@ -1,5 +1,6 @@
-from app.db.model_dao import insert_model, get_all_models
+from app.db.model_dao import insert_model, get_all_models, get_model_by_provider_and_name, delete_model
 from app.db.provider_dao import get_enabled_providers
+from app.exceptions.provider import ConnectionTestError
 from app.gpt.gpt_factory import GPTFactory
 from app.gpt.provider.OpenAI_compatible_provider import OpenAICompatibleProvider
 from app.models.model_config import ModelConfig
@@ -70,6 +71,13 @@ class ModelService:
             })
         return formatted
     @staticmethod
+    def get_enabled_models_by_provider( provider_id: str|int,):
+        from app.db.model_dao import get_models_by_provider
+
+        all_models = get_models_by_provider(provider_id)
+        enabled_models = all_models
+        return enabled_models
+    @staticmethod
     def get_all_models_by_id(provider_id: str, verbose: bool = False):
         try:
             provider = ProviderService.get_provider_by_id(provider_id)
@@ -86,13 +94,35 @@ class ModelService:
             print(f"[{provider_id}] 获取模型失败: {e}")
             return []
     @staticmethod
-    def connect_test(api_key: str, base_url: str) -> bool:
+    def connect_test(id: str) -> bool:
         try:
-            return OpenAICompatibleProvider.test_connection(api_key=api_key, base_url=base_url)
-        except Exception as e:
-            print(f"连接测试失败：{e}")
-            return False
+            provider = ProviderService.get_provider_by_id(id)
 
+            if provider:
+                if not provider.get('api_key'):
+                    raise ConnectionTestError(f"供应商信息未找到，请先保存重试")
+                result =  OpenAICompatibleProvider.test_connection(
+                    api_key=provider.get('api_key'),
+                    base_url=provider.get('base_url')
+                )
+                if result:
+                    return True
+                else:
+                    raise ConnectionTestError("请检查API Key 和 API 地址是否正确")
+
+            raise ConnectionTestError("供应商信息未找到，请先保存重试")
+        except Exception as e:
+            # 抛出业务异常，交由 Controller 处理
+            raise ConnectionTestError(f"{str(e)}") from e
+
+    @staticmethod
+    def delete_model_by_id( model_id: int) -> bool:
+        try:
+            delete_model(model_id)
+            return True
+        except Exception as e:
+            print(f"[{model_id}] <UNK>: {e}")
+            return False
     @staticmethod
     def add_new_model(provider_id: int, model_name: str) -> bool:
         try:
@@ -102,6 +132,12 @@ class ModelService:
                 print(f"供应商ID {provider_id} 不存在，无法添加模型")
                 return False
 
+            # 查询是否已存在同名模型
+            existing = get_model_by_provider_and_name(provider_id, model_name)
+            if existing:
+                print(f"模型 {model_name} 已存在于供应商ID {provider_id} 下，跳过插入")
+                return False
+
             # 插入模型
             insert_model(provider_id=provider_id, model_name=model_name)
             print(f"模型 {model_name} 已成功添加到供应商ID {provider_id}")