60 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			60 lines
		
	
	
		
			1.7 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 agentflow
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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/pkg/lang/maps"
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)
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type personaRender struct {
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	persona              string
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	personaVariableNames []string
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	// variables            crossdomain.Variables
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	variables map[string]string
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}
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func (p *personaRender) RenderPersona(ctx context.Context, req *AgentRequest) (persona string, err error) {
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	variables := make(map[string]string, len(p.personaVariableNames))
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	for _, name := range p.personaVariableNames {
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		// First try to get from req.Variables
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		if val, ok := req.Variables[name]; ok {
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			variables[name] = val
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			continue
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		}
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		// Fall back to personaRender.variables
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		if val, ok := p.variables[name]; ok {
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			variables[name] = val
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			continue
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		}
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		variables[name] = ""
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	}
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	msgs, err := prompt.FromMessages(schema.Jinja2, schema.UserMessage(p.persona)).Format(ctx, maps.ToAnyValue(variables))
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	if err != nil {
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		return "", fmt.Errorf("render persona failed, err=%w", err)
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	}
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	return msgs[0].Content, nil
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}
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