86 lines
2.7 KiB
Go
86 lines
2.7 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 intentdetector
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import (
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"context"
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"fmt"
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"github.com/cloudwego/eino/components/prompt"
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"github.com/cloudwego/eino/schema"
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"github.com/coze-dev/coze-studio/backend/api/model/workflow"
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"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
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"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/execute"
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"github.com/coze-dev/coze-studio/backend/pkg/ctxcache"
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"github.com/coze-dev/coze-studio/backend/pkg/logs"
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)
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type historyChatTemplate struct {
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basePrompt prompt.ChatTemplate
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chatHistorySetting *vo.ChatHistorySetting
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}
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func newHistoryChatTemplate(basePrompt prompt.ChatTemplate, chatHistorySetting *vo.ChatHistorySetting) prompt.ChatTemplate {
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return &historyChatTemplate{
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basePrompt: basePrompt,
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chatHistorySetting: chatHistorySetting,
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}
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}
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func (t *historyChatTemplate) Format(ctx context.Context, vs map[string]any, opts ...prompt.Option) ([]*schema.Message, error) {
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baseMessages, err := t.basePrompt.Format(ctx, vs, opts...)
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if err != nil {
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return nil, fmt.Errorf("failed to format base prompt: %w", err)
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}
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if len(baseMessages) == 0 {
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return nil, fmt.Errorf("base prompt returned no messages")
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}
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if t.chatHistorySetting == nil || !t.chatHistorySetting.EnableChatHistory {
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return baseMessages, nil
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}
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exeCtx := execute.GetExeCtx(ctx)
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if exeCtx == nil {
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logs.CtxWarnf(ctx, "execute context is nil, skipping chat history")
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return baseMessages, nil
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}
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if exeCtx.ExeCfg.WorkflowMode != workflow.WorkflowMode_ChatFlow {
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return baseMessages, nil
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}
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historyMessages, ok := ctxcache.Get[[]*schema.Message](ctx, chatHistoryKey)
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if !ok || len(historyMessages) == 0 {
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logs.CtxWarnf(ctx, "conversation history is empty")
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return baseMessages, nil
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}
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if len(historyMessages) == 0 {
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return baseMessages, nil
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}
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finalMessages := make([]*schema.Message, 0, len(baseMessages)+len(historyMessages))
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finalMessages = append(finalMessages, baseMessages[0]) // System prompt
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finalMessages = append(finalMessages, historyMessages...)
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if len(baseMessages) > 1 {
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finalMessages = append(finalMessages, baseMessages[1:]...) // User prompt and any others
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}
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return finalMessages, nil
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}
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