145 lines
4.2 KiB
Go
145 lines
4.2 KiB
Go
package service
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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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"fmt"
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"prompts-core/model/dto"
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"prompts-core/model/entity"
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"strings"
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"github.com/gogf/gf/v2/frame/g"
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"github.com/gogf/gf/v2/util/gconv"
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)
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// 获取请求模型的提示词
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func GetModelPrompt(ctx context.Context, Type int) string {
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return g.Cfg().MustGet(ctx, "modelPrompts.types."+gconv.String(Type), "").String()
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}
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// 获取构建提示词
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func GetBuildPrompt(ctx context.Context, Type int) string {
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return g.Cfg().MustGet(ctx, "buildProject.types."+gconv.String(Type), "").String()
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}
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// buildInferenceRequest 构建返回请求
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func buildInferenceRequest(ctx context.Context, req *dto.ComposeMessagesReq, chatModel *entity.AsynchModel, model *entity.AsynchModel, history []map[string]any) (map[string]any, error) {
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messages := []map[string]any{}
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switch req.BuildType {
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//构建提示词请求
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case 1:
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//1. 构建系统提示词
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messages = append(messages, map[string]any{
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"role": "system",
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"content": promptBuild(ctx, req, model),
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})
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// 2. 构建历史会话提示词
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for _, msg := range history {
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role := gconv.String(msg["role"])
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content := gconv.String(msg["content"])
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if role != "user" && role != "assistant" {
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continue
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}
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messages = append(messages, map[string]any{
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"role": role,
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"content": content,
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})
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}
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// 3. 当前用户问题（原来的最后一条）
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messages = append(messages, map[string]any{
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"role": "user",
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"content": buildUserPrompt(ctx, req, GetModelPrompt(ctx, model.ModelType)),
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})
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//构建节点请求
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case 2:
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messages = append(messages, map[string]any{
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"role": "user",
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"content": NodeBuid(ctx, req),
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})
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default:
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return nil, errors.New("不支持的构建类型")
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}
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// 构建请求体
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return map[string]any{
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"modelName": chatModel.ModelName,
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"bizName": "prompts-core",
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"callbackUrl": "/prompt/callback",
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"requestPayload": map[string]any{
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"model": chatModel.ModelName,
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"messages": messages,
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"stream": false,
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},
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}, nil
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}
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// ============================================
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// 构建用户提示词
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// ============================================
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func buildUserPrompt(ctx context.Context, req *dto.ComposeMessagesReq, prompt string) string {
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payload := map[string]any{
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"model": req.ModelName,
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//数据库提示信息
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"promptInfo": prompt,
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// 系统表单
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"form": req.Form,
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// 用户表单
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"userForm": req.UserForm,
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//文件url
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"userFiles": req.UserFiles,
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//解读文件（只支持可读类型 如：xml，json,yaml）
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"userFilesText": FetchFileTexts(ctx, req.UserFiles),
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//skill 相关（根据传入的 skillName 获取 zip 内所有 md 文件拼接内容）
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"skills": SkillMdContent(ctx, req.SkillName),
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}
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return mustMarshal(payload)
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}
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// promptBuild 提示词构建
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func promptBuild(ctx context.Context, req *dto.ComposeMessagesReq, model *entity.AsynchModel) string {
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// 1. 从配置文件读取提示词模板
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promptTpl := GetBuildPrompt(ctx, req.BuildType)
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if promptTpl == "" {
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return ""
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}
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// 2. 构建字段映射说明
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mappingBytes, _ := json.Marshal(model.RequestMapping)
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mappingStr := string(mappingBytes)
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var mapping map[string]string
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_ = json.Unmarshal(mappingBytes, &mapping)
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var fieldDesc strings.Builder
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for key, path := range mapping {
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fieldDesc.WriteString(fmt.Sprintf("- %s → %s\n", key, path))
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}
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// 3. 拼接 UserForm 全文（必须完整阅读）
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var userFormContent strings.Builder
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for k, v := range req.UserForm {
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userFormContent.WriteString(fmt.Sprintf("%s=%v；", k, v))
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}
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userFormFullText := strings.TrimSuffix(userFormContent.String(), "；")
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// 4. 双表单信息
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formInfo := fmt.Sprintf(`
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【系统表单（系统提示词/参数）】
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%s
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【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
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`, formToJSON(req.Form), userFormFullText)
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// 5. 格式化最终提示词（替换配置里的 %s）
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return fmt.Sprintf(promptTpl, mappingStr, fieldDesc.String(), formInfo)
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}
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// NodeBuid 节点构建
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func NodeBuid(ctx context.Context, req *dto.ComposeMessagesReq) string {
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promptTpl := GetBuildPrompt(ctx, req.BuildType)
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if promptTpl == "" {
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return ""
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}
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formStr := formToJSON(req.Form)
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userFormStr := formToJSON(req.UserForm)
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return fmt.Sprintf(promptTpl, formStr, userFormStr)
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}
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