feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/service/as_tool_impl.go

@@ -0,0 +1,64 @@
+/*
+ * 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 service
+
+import (
+	"context"
+
+	einoCompose "github.com/cloudwego/eino/compose"
+	"github.com/cloudwego/eino/schema"
+
+	"github.com/coze-dev/coze-studio/backend/domain/workflow"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/execute"
+)
+
+type asToolImpl struct {
+	repo workflow.Repository
+}
+
+func (a *asToolImpl) WithMessagePipe() (einoCompose.Option, *schema.StreamReader[*entity.Message]) {
+	return execute.WithMessagePipe()
+}
+
+func (a *asToolImpl) WithExecuteConfig(cfg vo.ExecuteConfig) einoCompose.Option {
+	return einoCompose.WithToolsNodeOption(einoCompose.WithToolOption(execute.WithExecuteConfig(cfg)))
+}
+
+func (a *asToolImpl) WithResumeToolWorkflow(resumingEvent *entity.ToolInterruptEvent, resumeData string,
+	allInterruptEvents map[string]*entity.ToolInterruptEvent) einoCompose.Option {
+	return einoCompose.WithToolsNodeOption(
+		einoCompose.WithToolOption(
+			execute.WithResume(&entity.ResumeRequest{
+				ExecuteID:  resumingEvent.ExecuteID,
+				EventID:    resumingEvent.ID,
+				ResumeData: resumeData,
+			}, allInterruptEvents)))
+}
+
+func (a *asToolImpl) WorkflowAsModelTool(ctx context.Context, policies []*vo.GetPolicy) (tools []workflow.ToolFromWorkflow, err error) {
+	for _, id := range policies {
+		t, err := a.repo.WorkflowAsTool(ctx, *id, vo.WorkflowToolConfig{})
+		if err != nil {
+			return nil, err
+		}
+		tools = append(tools, t)
+	}
+
+	return tools, nil
+}