375 lines
10 KiB
Go
375 lines
10 KiB
Go
/*
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* Copyright 2025 coze-dev Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package agentflow
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import (
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"context"
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"encoding/json"
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"errors"
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"io"
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"github.com/cloudwego/eino/callbacks"
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"github.com/cloudwego/eino/components"
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"github.com/cloudwego/eino/components/model"
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"github.com/cloudwego/eino/components/retriever"
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"github.com/cloudwego/eino/compose"
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"github.com/cloudwego/eino/schema"
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"github.com/coze-dev/coze-studio/backend/api/model/crossdomain/plugin"
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"github.com/coze-dev/coze-studio/backend/api/model/crossdomain/singleagent"
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"github.com/coze-dev/coze-studio/backend/crossdomain/contract/crossworkflow"
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"github.com/coze-dev/coze-studio/backend/domain/agent/singleagent/entity"
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"github.com/coze-dev/coze-studio/backend/pkg/errorx"
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"github.com/coze-dev/coze-studio/backend/pkg/lang/conv"
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"github.com/coze-dev/coze-studio/backend/pkg/logs"
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)
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func newReplyCallback(_ context.Context, executeID string) (clb callbacks.Handler,
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sr *schema.StreamReader[*entity.AgentEvent], sw *schema.StreamWriter[*entity.AgentEvent],
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) {
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sr, sw = schema.Pipe[*entity.AgentEvent](10)
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rcc := &replyChunkCallback{
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sw: sw,
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executeID: executeID,
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}
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clb = callbacks.NewHandlerBuilder().
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OnStartFn(rcc.OnStart).
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OnEndFn(rcc.OnEnd).
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OnEndWithStreamOutputFn(rcc.OnEndWithStreamOutput).
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OnErrorFn(rcc.OnError).
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Build()
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return clb, sr, sw
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}
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type replyChunkCallback struct {
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sw *schema.StreamWriter[*entity.AgentEvent]
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executeID string
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}
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func (r *replyChunkCallback) OnError(ctx context.Context, info *callbacks.RunInfo, err error) context.Context {
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logs.CtxInfof(ctx, "info-OnError, info=%v, err=%v", conv.DebugJsonToStr(info), err)
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switch info.Component {
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case compose.ComponentOfGraph:
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if interruptInfo, ok := compose.ExtractInterruptInfo(err); ok {
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if info.Name != "" {
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return ctx
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}
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interruptData := convInterruptInfo(ctx, interruptInfo)
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interruptData.InterruptID = r.executeID
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toolMessageEvent := &entity.AgentEvent{
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EventType: singleagent.EventTypeOfToolsMessage,
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ToolsMessage: []*schema.Message{
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{
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Role: schema.Tool,
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Content: "directly streaming reply",
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ToolCallID: interruptData.ToolCallID,
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},
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},
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}
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r.sw.Send(toolMessageEvent, nil)
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interruptEvent := &entity.AgentEvent{
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EventType: singleagent.EventTypeOfInterrupt,
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Interrupt: interruptData,
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}
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r.sw.Send(interruptEvent, nil)
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} else {
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logs.CtxErrorf(ctx, "node execute failed, component=%v, name=%v, err=%v",
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info.Component, info.Name, err)
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var customErr errorx.StatusError
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errMsg := "Internal server error"
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if errors.As(err, &customErr) && customErr.Code() != 0 {
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errMsg = customErr.Msg()
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}
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r.sw.Send(nil, errors.New(errMsg))
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}
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}
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return ctx
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}
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func (r *replyChunkCallback) OnStart(ctx context.Context, info *callbacks.RunInfo, input callbacks.CallbackInput) context.Context {
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logs.CtxInfof(ctx, "info-OnStart, info=%v, input=%v", conv.DebugJsonToStr(info), conv.DebugJsonToStr(input))
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switch info.Component {
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case compose.ComponentOfToolsNode:
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if info.Name != keyOfReActAgentToolsNode {
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return ctx
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}
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ae := &entity.AgentEvent{
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EventType: singleagent.EventTypeOfFuncCall,
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FuncCall: convToolsNodeCallbackInput(input),
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}
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r.sw.Send(ae, nil)
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}
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return ctx
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}
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func (r *replyChunkCallback) OnEnd(ctx context.Context, info *callbacks.RunInfo, output callbacks.CallbackOutput) context.Context {
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logs.CtxInfof(ctx, "info-OnEnd, info=%v, output=%v", conv.DebugJsonToStr(info), conv.DebugJsonToStr(output))
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switch info.Name {
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case keyOfKnowledgeRetriever:
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knowledgeEvent := &entity.AgentEvent{
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EventType: singleagent.EventTypeOfKnowledge,
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Knowledge: retriever.ConvCallbackOutput(output).Docs,
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}
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if knowledgeEvent.Knowledge != nil {
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r.sw.Send(knowledgeEvent, nil)
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}
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case keyOfToolsPreRetriever:
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result := convToolsPreRetrieverCallbackInput(output)
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if len(result) > 0 {
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for _, item := range result {
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var event *entity.AgentEvent
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if item.Role == schema.Tool {
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event = &entity.AgentEvent{
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EventType: singleagent.EventTypeOfToolsMessage,
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ToolsMessage: []*schema.Message{item},
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}
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} else {
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event = &entity.AgentEvent{
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EventType: singleagent.EventTypeOfFuncCall,
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FuncCall: item,
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}
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}
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r.sw.Send(event, nil)
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}
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}
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case keyOfSuggestParser:
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sg := convSuggestionNodeCallbackOutput(output)
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if len(sg) > 0 {
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for _, item := range sg {
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suggestionEvent := &entity.AgentEvent{
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EventType: singleagent.EventTypeOfSuggest,
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Suggest: item,
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}
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r.sw.Send(suggestionEvent, nil)
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}
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}
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default:
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return ctx
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}
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return ctx
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}
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func (r *replyChunkCallback) OnEndWithStreamOutput(ctx context.Context, info *callbacks.RunInfo,
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output *schema.StreamReader[callbacks.CallbackOutput],
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) context.Context {
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logs.CtxInfof(ctx, "info-OnEndWithStreamOutput, info=%v, output=%v", conv.DebugJsonToStr(info), conv.DebugJsonToStr(output))
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switch info.Component {
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case compose.ComponentOfGraph, components.ComponentOfChatModel:
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if info.Name != keyOfReActAgentChatModel && info.Name != keyOfLLM {
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output.Close()
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return ctx
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}
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sr := schema.StreamReaderWithConvert(output, func(t callbacks.CallbackOutput) (*schema.Message, error) {
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cbOut := model.ConvCallbackOutput(t)
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return cbOut.Message, nil
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})
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r.sw.Send(&entity.AgentEvent{
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EventType: singleagent.EventTypeOfChatModelAnswer,
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ChatModelAnswer: sr,
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}, nil)
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return ctx
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case compose.ComponentOfToolsNode:
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toolsMessage, err := concatToolsNodeOutput(ctx, output)
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if err != nil {
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r.sw.Send(nil, err)
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return ctx
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}
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r.sw.Send(&entity.AgentEvent{
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EventType: singleagent.EventTypeOfToolsMessage,
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ToolsMessage: toolsMessage,
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}, nil)
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return ctx
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default:
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return ctx
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}
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}
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func convInterruptInfo(ctx context.Context, interruptInfo *compose.InterruptInfo) *singleagent.InterruptInfo {
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var output *compose.InterruptInfo
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output = interruptInfo.SubGraphs[keyOfReActAgent]
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var extra any
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for i := range output.RerunNodesExtra {
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extra = output.RerunNodesExtra[i]
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break
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}
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toolsNodeExtra, ok := extra.(*compose.ToolsInterruptAndRerunExtra)
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logs.CtxInfof(ctx, "toolsNodeExtra=%v, err=%v", toolsNodeExtra, ok)
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var toolCallID string
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wfResumeData := make(map[string]*crossworkflow.ToolInterruptEvent)
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toolResultData := make(map[string]*plugin.ToolInterruptEvent)
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var interruptEventType singleagent.InterruptEventType
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for k, v := range toolsNodeExtra.RerunExtraMap {
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toolCallID = k
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interruptEventType = convInterruptEventType(v)
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if interruptEventType == singleagent.InterruptEventType_OauthPlugin {
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toolResultData[k] = v.(*plugin.ToolInterruptEvent)
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} else {
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wfResumeData[k] = v.(*crossworkflow.ToolInterruptEvent)
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}
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break
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}
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interrupt := &singleagent.InterruptInfo{
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AllToolInterruptData: toolResultData,
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AllWfInterruptData: wfResumeData,
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ToolCallID: toolCallID,
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InterruptType: interruptEventType,
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}
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return interrupt
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}
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func convInterruptEventType(interruptEvent any) singleagent.InterruptEventType {
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var interruptEventType singleagent.InterruptEventType
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switch t := interruptEvent.(type) {
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case *crossworkflow.ToolInterruptEvent:
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interruptEventType = singleagent.InterruptEventType(int64(t.EventType))
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case *plugin.ToolInterruptEvent:
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if t.Event == plugin.InterruptEventTypeOfToolNeedOAuth {
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interruptEventType = singleagent.InterruptEventType_OauthPlugin
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}
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}
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return interruptEventType
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}
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func concatToolsNodeOutput(ctx context.Context, output *schema.StreamReader[callbacks.CallbackOutput]) ([]*schema.Message, error) {
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defer output.Close()
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toolsMsgChunks := make([][]*schema.Message, 0, 5)
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for {
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cbOut, err := output.Recv()
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if errors.Is(err, io.EOF) {
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break
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}
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if err != nil {
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return nil, err
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}
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msgs := convToolsNodeCallbackOutput(cbOut)
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for _, msg := range msgs {
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if msg == nil {
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continue
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}
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findSameMsg := false
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for i, msgChunks := range toolsMsgChunks {
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if msg.ToolCallID == msgChunks[0].ToolCallID {
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toolsMsgChunks[i] = append(toolsMsgChunks[i], msg)
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findSameMsg = true
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break
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}
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}
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if !findSameMsg {
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toolsMsgChunks = append(toolsMsgChunks, []*schema.Message{msg})
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}
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}
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}
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toolMessages := make([]*schema.Message, 0, len(toolsMsgChunks))
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for _, msgChunks := range toolsMsgChunks {
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msg, err := schema.ConcatMessages(msgChunks)
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if err != nil {
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return nil, err
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}
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toolMessages = append(toolMessages, msg)
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}
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return toolMessages, nil
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}
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func convToolsNodeCallbackInput(input callbacks.CallbackInput) *schema.Message {
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switch t := input.(type) {
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case *schema.Message:
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return t
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default:
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return nil
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}
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}
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func convToolsNodeCallbackOutput(output callbacks.CallbackOutput) []*schema.Message {
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switch t := output.(type) {
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case []*schema.Message:
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return t
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default:
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return nil
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}
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}
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func convToolsPreRetrieverCallbackInput(output callbacks.CallbackOutput) []*schema.Message {
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switch t := output.(type) {
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case []*schema.Message:
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return t
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default:
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return nil
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}
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}
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func convSuggestionNodeCallbackOutput(output callbacks.CallbackInput) []*schema.Message {
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var sg []*schema.Message
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switch so := output.(type) {
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case *schema.Message:
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if so.Content != "" {
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var suggestions []string
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err := json.Unmarshal([]byte(so.Content), &suggestions)
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if err == nil && len(suggestions) > 0 {
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for _, suggestion := range suggestions {
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sm := &schema.Message{
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Role: so.Role,
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Content: suggestion,
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ResponseMeta: so.ResponseMeta,
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}
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sg = append(sg, sm)
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}
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}
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}
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default:
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return sg
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}
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return sg
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}
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