修复帧提取BUG

application/services/frame_prompt_helper.go

@@ -0,0 +1,38 @@
+package services
+
+import (
+	"encoding/json"
+	"regexp"
+	"strings"
+)
+
+// parseFramePromptJSON 解析AI返回的JSON格式提示词
+func (s *FramePromptService) parseFramePromptJSON(aiResponse string) *SingleFramePrompt {
+	// 清理可能的markdown代码块标记
+	cleaned := strings.TrimSpace(aiResponse)
+
+	// 移除 ```json 和 ``` 标记
+	re := regexp.MustCompile("(?s)```json\\s*(.+?)\\s*```")
+	if matches := re.FindStringSubmatch(cleaned); len(matches) > 1 {
+		cleaned = strings.TrimSpace(matches[1])
+	} else {
+		// 移除单独的 ``` 标记
+		cleaned = strings.Trim(cleaned, "`")
+		cleaned = strings.TrimSpace(cleaned)
+	}
+
+	// 尝试解析JSON
+	var result SingleFramePrompt
+	if err := json.Unmarshal([]byte(cleaned), &result); err != nil {
+		s.log.Warnw("Failed to parse JSON", "error", err, "cleaned_response", cleaned)
+		return nil
+	}
+
+	// 验证必需字段
+	if result.Prompt == "" {
+		s.log.Warnw("Parsed JSON missing prompt field", "response", cleaned)
+		return nil
+	}
+
+	return &result
+}