refactor(prompt): 重构提示词构建服务和回调处理

service/prompt/prompt_files_handle_service.go

@@ -22,26 +22,25 @@ const (
 	bytesPerMB = 1024 * 1024
 )
 
-// ExtractFileTexts 从 ConsultItem 列表中提取文件内容
-func ExtractFileTexts(ctx context.Context, consult []dto.ConsultItem) map[string]string {
+// ExtractFileTexts 从 ConsultItem 列表中提取文件内容，返回拼接文本
+func ExtractFileTexts(ctx context.Context, consult []dto.ConsultItem) string {
 	urls := make([]string, 0, len(consult))
 	for _, item := range consult {
 		if item.Url != "" {
 			urls = append(urls, item.Url)
 		}
 	}
-	return FetchFileTexts(ctx, urls)
+	return FetchFileTextsAsString(ctx, urls)
 }
 
-// FetchFileTexts 从 URL 列表获取文件内容，支持 zip 内文件
-func FetchFileTexts(ctx context.Context, urls []string) map[string]string {
-	result := make(map[string]string)
-
+// FetchFileTextsAsString 从 URL 列表获取文件内容，拼接为字符串
+func FetchFileTextsAsString(ctx context.Context, urls []string) string {
 	if len(urls) == 0 {
-		return result
+		return ""
 	}
 
 	client := createHTTPClient(ctx, "userFiles.httpTimeoutSec", 8)
+	var builder strings.Builder
 
 	for _, rawURL := range urls {
 		url := util.SanitizeURL(rawURL)
@@ -50,23 +49,19 @@ func FetchFileTexts(ctx context.Context, urls []string) map[string]string {
 		}
 
 		if util.IsZipExtension(url) {
-			mergeMap(result, fetchZipFileTexts(ctx, client, url))
+			for _, text := range fetchZipFileTexts(ctx, client, url) {
+				builder.WriteString(text)
+				builder.WriteString("\n")
+			}
 			continue
 		}
 
 		if text := fetchAndCleanFileContent(ctx, client, url); text != "" {
-			result[url] = text
+			builder.WriteString(fmt.Sprintf("【文件：%s】\n%s\n", url, text))
 		}
 	}
 
-	return result
-}
-
-// mergeMap 合并 map
-func mergeMap(dst, src map[string]string) {
-	for k, v := range src {
-		dst[k] = v
-	}
+	return builder.String()
 }
 
 // fetchAndCleanFileContent 获取并清理文件内容