feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/internal/execute/tool_option.go

@@ -0,0 +1,77 @@
+/*
+ * 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 execute
+
+import (
+	"github.com/cloudwego/eino/components/tool"
+	"github.com/cloudwego/eino/compose"
+	"github.com/cloudwego/eino/schema"
+
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
+)
+
+type workflowToolOption struct {
+	resumeReq            *entity.ResumeRequest
+	sw                   *schema.StreamWriter[*entity.Message]
+	exeCfg               vo.ExecuteConfig
+	allInterruptEvents   map[string]*entity.ToolInterruptEvent
+	parentTokenCollector *TokenCollector
+}
+
+func WithResume(req *entity.ResumeRequest, all map[string]*entity.ToolInterruptEvent) tool.Option {
+	return tool.WrapImplSpecificOptFn(func(opts *workflowToolOption) {
+		opts.resumeReq = req
+		opts.allInterruptEvents = all
+	})
+}
+
+func WithIntermediateStreamWriter(sw *schema.StreamWriter[*entity.Message]) tool.Option {
+	return tool.WrapImplSpecificOptFn(func(opts *workflowToolOption) {
+		opts.sw = sw
+	})
+}
+
+func WithExecuteConfig(cfg vo.ExecuteConfig) tool.Option {
+	return tool.WrapImplSpecificOptFn(func(opts *workflowToolOption) {
+		opts.exeCfg = cfg
+	})
+}
+
+func GetResumeRequest(opts ...tool.Option) (*entity.ResumeRequest, map[string]*entity.ToolInterruptEvent) {
+	opt := tool.GetImplSpecificOptions(&workflowToolOption{}, opts...)
+	return opt.resumeReq, opt.allInterruptEvents
+}
+
+func GetIntermediateStreamWriter(opts ...tool.Option) *schema.StreamWriter[*entity.Message] {
+	opt := tool.GetImplSpecificOptions(&workflowToolOption{}, opts...)
+	return opt.sw
+}
+
+func GetExecuteConfig(opts ...tool.Option) vo.ExecuteConfig {
+	opt := tool.GetImplSpecificOptions(&workflowToolOption{}, opts...)
+	return opt.exeCfg
+}
+
+// WithMessagePipe returns an Option which is meant to be passed to the tool workflow, as well as a StreamReader to read the messages from the tool workflow.
+// This Option will apply to ALL workflow tools to be executed by eino's ToolsNode. The workflow tools will emit messages to this stream.
+// The caller can receive from the returned StreamReader to get the messages from the tool workflow.
+func WithMessagePipe() (compose.Option, *schema.StreamReader[*entity.Message]) {
+	sr, sw := schema.Pipe[*entity.Message](10)
+	opt := compose.WithToolsNodeOption(compose.WithToolOption(WithIntermediateStreamWriter(sw)))
+	return opt, sr
+}