feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/crossdomain/model/model.go

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package model
+
+import (
+	"context"
+
+	"github.com/cloudwego/eino/components/model"
+
+	"github.com/coze-dev/coze-studio/backend/crossdomain/contract/crossmodelmgr"
+)
+
+type LLMParams struct {
+	ModelName         string         `json:"modelName"`
+	ModelType         int64          `json:"modelType"`
+	Prompt            string         `json:"prompt"` // user prompt
+	Temperature       *float64       `json:"temperature"`
+	FrequencyPenalty  float64        `json:"frequencyPenalty"`
+	PresencePenalty   float64        `json:"presencePenalty"`
+	MaxTokens         int            `json:"maxTokens"`
+	TopP              *float64       `json:"topP"`
+	TopK              *int           `json:"topK"`
+	EnableChatHistory bool           `json:"enableChatHistory"`
+	SystemPrompt      string         `json:"systemPrompt"`
+	ResponseFormat    ResponseFormat `json:"responseFormat"`
+}
+
+type ResponseFormat int64
+
+const (
+	ResponseFormatText     ResponseFormat = 0
+	ResponseFormatMarkdown ResponseFormat = 1
+	ResponseFormatJSON     ResponseFormat = 2
+)
+
+var ManagerImpl Manager
+
+func GetManager() Manager {
+	return ManagerImpl
+}
+
+func SetManager(m Manager) {
+	ManagerImpl = m
+}
+
+//go:generate  mockgen -destination modelmock/model_mock.go --package mockmodel -source model.go
+type Manager interface {
+	GetModel(ctx context.Context, params *LLMParams) (model.BaseChatModel, *crossmodelmgr.Model, error)
+}