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113 lines
3.6 KiB
Go
113 lines
3.6 KiB
Go
/*
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* Copyright 2025 CloudWeGo 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 eino
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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"github.com/RanFeng/ilog"
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"github.com/cloudwego/eino/components/prompt"
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"github.com/cloudwego/eino/compose"
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"github.com/cloudwego/eino/schema"
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"github.com/cloudwego/eino-examples/flow/agent/deer-go/biz/consts"
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"github.com/cloudwego/eino-examples/flow/agent/deer-go/biz/infra"
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"github.com/cloudwego/eino-examples/flow/agent/deer-go/biz/model"
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)
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func loadPlannerMsg(ctx context.Context, name string, opts ...any) (output []*schema.Message, err error) {
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err = compose.ProcessState[*model.State](ctx, func(_ context.Context, state *model.State) error {
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sysPrompt, err := infra.GetPromptTemplate(ctx, name)
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if err != nil {
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ilog.EventInfo(ctx, "get prompt template fail")
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return err
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}
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var promptTemp *prompt.DefaultChatTemplate
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if state.EnableBackgroundInvestigation && len(state.BackgroundInvestigationResults) > 0 {
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promptTemp = prompt.FromMessages(schema.Jinja2,
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schema.SystemMessage(sysPrompt),
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schema.MessagesPlaceholder("user_input", true),
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schema.UserMessage(fmt.Sprintf("background investigation results of user query: \n %s", state.BackgroundInvestigationResults)),
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)
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} else {
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promptTemp = prompt.FromMessages(schema.Jinja2,
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schema.SystemMessage(sysPrompt),
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schema.MessagesPlaceholder("user_input", true),
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)
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}
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variables := map[string]any{
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"locale": state.Locale,
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"max_step_num": state.MaxStepNum,
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"max_plan_iterations": state.MaxPlanIterations,
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"CURRENT_TIME": time.Now().Format("2006-01-02 15:04:05"),
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"user_input": state.Messages,
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}
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output, err = promptTemp.Format(ctx, variables)
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return err
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})
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return output, err
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}
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func routerPlanner(ctx context.Context, input *schema.Message, opts ...any) (output string, err error) {
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err = compose.ProcessState[*model.State](ctx, func(_ context.Context, state *model.State) error {
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defer func() {
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output = state.Goto
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}()
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state.Goto = compose.END
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state.CurrentPlan = &model.Plan{}
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// TODO fix 一些 ```
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err = json.Unmarshal([]byte(input.Content), state.CurrentPlan)
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if err != nil {
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ilog.EventInfo(ctx, "gen_plan_fail", "input.Content", input.Content, "err", err)
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if state.PlanIterations > 0 {
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state.Goto = consts.Reporter
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return nil
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}
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return nil
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}
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ilog.EventInfo(ctx, "gen_plan_ok", "plan", state.CurrentPlan)
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state.PlanIterations++
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if state.CurrentPlan.HasEnoughContext {
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state.Goto = consts.Reporter
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return nil
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}
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state.Goto = consts.Human // TODO 改成 human_feedback
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return nil
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})
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return output, nil
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}
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func NewPlanner[I, O any](ctx context.Context) *compose.Graph[I, O] {
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cag := compose.NewGraph[I, O]()
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_ = cag.AddLambdaNode("load", compose.InvokableLambdaWithOption(loadPlannerMsg))
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_ = cag.AddChatModelNode("agent", infra.PlanModel)
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_ = cag.AddLambdaNode("router", compose.InvokableLambdaWithOption(routerPlanner))
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_ = cag.AddEdge(compose.START, "load")
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_ = cag.AddEdge("load", "agent")
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_ = cag.AddEdge("agent", "router")
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_ = cag.AddEdge("router", compose.END)
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return cag
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}
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