Files
prompts-core/service/build_service.go

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package service
import (
"context"
"encoding/json"
"fmt"
"prompts-core/model/dto"
"prompts-core/model/entity"
"strings"
"github.com/gogf/gf/v2/frame/g"
"github.com/gogf/gf/v2/util/gconv"
)
// 获取系统模型提示词
func getConfPrompt(ctx context.Context, modelType int) string {
return g.Cfg().MustGet(ctx, "modelPrompts.types."+gconv.String(modelType), "").String()
}
func buildInferenceRequest(ctx context.Context, req *dto.ComposeMessagesReq, sessionModel *entity.AsynchModel, model *entity.AsynchModel, historyMessages []Message) (map[string]any, error) {
// 读取 task 相关的配置
// 构建消息数组
// 1. 系统提示词(不动)
fmt.Println("打印sessionModel结果", sessionModel)
fmt.Println("打印model结果", model)
messages := []map[string]any{}
messages = append(messages, map[string]any{
"role": "system",
"content": GetSystemPrompt(ctx, req, model),
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})
// 2. 历史对话 - 动态添加(新增部分)
for _, msg := range historyMessages {
messages = append(messages, map[string]any{
"role": msg.Role,
"content": msg.GetContentString(),
})
}
// 3. 当前用户问题(原来的最后一条)
messages = append(messages, map[string]any{
"role": "user",
"content": buildCombinedInput(req, getConfPrompt(ctx, model.ModelsType)),
})
// 构建请求体
return map[string]any{
"modelName": sessionModel.ModelName,
"bizName": "prompts-core",
"callbackUrl": "/prompt/callback",
"requestPayload": map[string]any{
"model": sessionModel.ModelName,
"messages": messages,
"stream": false,
},
}, nil
}
// ============================================
// 输入构建
// ============================================
func buildCombinedInput(req *dto.ComposeMessagesReq, prompt string) string {
payload := map[string]any{
//数据库提示信息
"promptInfo": prompt,
// 系统表单
"form": req.Form,
// 用户表单
"userForm": req.UserForm,
//文件url
"userFiles": req.UserFiles,
//解读文件(只支持可读类型 如xmljson,yaml
"userFilesText": fetchFileTexts(context.Background(), req.UserFiles),
}
return mustMarshal(payload)
}
// GetSystemPrompt 定义获取系统提示词的函数
// GetSystemPrompt 从配置文件读取提示词 + 格式化变量
func GetSystemPrompt(ctx context.Context, req *dto.ComposeMessagesReq, model *entity.AsynchModel) string {
// 1. 从配置文件读取提示词模板
promptTpl := g.Cfg().MustGet(ctx, "projectPrompts", "").String()
if promptTpl == "" {
return ""
}
// 2. 构建字段映射说明
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mappingBytes, _ := json.Marshal(model.RequestMapping)
mappingStr := string(mappingBytes)
var mapping map[string]string
_ = json.Unmarshal(mappingBytes, &mapping)
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var fieldDesc strings.Builder
for key, path := range mapping {
fieldDesc.WriteString(fmt.Sprintf("- %s → %s\n", key, path))
}
// 3. 拼接 UserForm 全文(必须完整阅读)
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var userFormContent strings.Builder
for k, v := range req.UserForm {
userFormContent.WriteString(fmt.Sprintf("%s=%v", k, v))
}
userFormFullText := strings.TrimSuffix(userFormContent.String(), "")
// 4. 双表单信息
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formInfo := fmt.Sprintf(`
系统表单系统提示词/参数
%s
用户表单全文必须完整阅读全部作为用户提示词来源
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%s
`, formToJSON(req.Form), userFormFullText)
// 5. 格式化最终提示词(替换配置里的 %s
return fmt.Sprintf(promptTpl, mappingStr, fieldDesc.String(), formInfo)
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}
// formToJSON 工具函数不变
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func formToJSON(form map[string]any) string {
if form == nil {
return "{}"
}
b, _ := json.Marshal(form)
return string(b)
}