feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/entity/message.go

@@ -0,0 +1,95 @@
+/*
+ * 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 entity
+
+import (
+	"github.com/cloudwego/eino/schema"
+
+	"github.com/coze-dev/coze-studio/backend/api/model/ocean/cloud/workflow"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
+)
+
+type Message struct {
+	*StateMessage
+	*DataMessage
+}
+
+// StateMessage represents a status change for the workflow execution.
+type StateMessage struct {
+	ExecuteID      int64
+	EventID        int64 // the resuming event ID for current execution
+	SpaceID        int64
+	Status         WorkflowExecuteStatus
+	Usage          *TokenUsage
+	LastError      vo.WorkflowError
+	InterruptEvent *InterruptEvent
+}
+
+// DataMessage represents a full or chunked message during a run that should go into message history.
+type DataMessage struct {
+	ExecuteID    int64 // the root execute ID for current execution
+	Role         schema.RoleType
+	Type         MessageType
+	Content      string
+	NodeID       string
+	NodeTitle    string
+	NodeType     NodeType
+	Last         bool
+	Usage        *TokenUsage
+	FunctionCall *FunctionCallInfo
+	ToolResponse *ToolResponseInfo
+}
+
+type MessageType string
+
+const (
+	Answer       MessageType = "answer"
+	FunctionCall MessageType = "function_call"
+	ToolResponse MessageType = "tool_response"
+)
+
+type FunctionInfo struct {
+	Name string   `json:"name"`
+	Type ToolType `json:"plugin_type"`
+
+	PluginID   int64  `json:"plugin_id,omitempty"`
+	PluginName string `json:"plugin_name,omitempty"`
+	APIID      int64  `json:"api_id,omitempty"`
+	APIName    string `json:"api_name,omitempty"`
+
+	WorkflowName          string           `json:"workflow_name,omitempty"`
+	WorkflowTerminatePlan vo.TerminatePlan `json:"terminate_plan,omitempty"`
+}
+
+type FunctionCallInfo struct {
+	FunctionInfo
+	CallID    string `json:"-"`
+	Arguments string `json:"arguments"`
+}
+
+type ToolResponseInfo struct {
+	FunctionInfo
+	CallID   string
+	Response string
+}
+
+type ToolType = workflow.PluginType
+
+const (
+	PluginTool   = workflow.PluginType_PLUGIN
+	WorkflowTool = workflow.PluginType_WORKFLOW
+)