Method CompressSystemPrompt

pkg/compression/service.go:156–213

CompressSystemPrompt 压缩 System Prompt

(ctx context.Context, prompt string, opts *CompressOptions)

// CompressSystemPrompt 压缩 System Prompt
func (s *DefaultCompressionService) CompressSystemPrompt(ctx context.Context, prompt string, opts *CompressOptions) (*CompressResult, error) {
	startTime := time.Now()

	// 设置默认选项
	if opts == nil {
		opts = &CompressOptions{
			Mode:     ModeHybrid,
			Level:    LevelModerate,
			Language: "zh",
			UseCache: true,
		}
	}

	// 检查缓存
	if opts.UseCache {
		cacheKey := s.generateCacheKey(prompt, opts)
		if cached := s.cache.Get(cacheKey); cached != nil {
			s.updateStats(cached, true)
			cached.CacheHit = true
			return cached, nil
		}
	}

	// 执行压缩
	var result *CompressResult
	var err error

	switch opts.Mode {
	case ModeSimple:
		result, err = s.compressSimple(ctx, prompt, opts)
	case ModeLLM:
		result, err = s.compressLLM(ctx, prompt, opts)
	case ModeHybrid:
		result, err = s.compressHybrid(ctx, prompt, opts)
	default:
		return nil, fmt.Errorf("unsupported compression mode: %s", opts.Mode)
	}

	if err != nil {
		return nil, err
	}

	// 设置结果信息
	result.Duration = time.Since(startTime)
	result.Mode = string(opts.Mode)
	result.CacheHit = false

	// 缓存结果
	if opts.UseCache {
		cacheKey := s.generateCacheKey(prompt, opts)
		s.cache.Set(cacheKey, result)
	}

	// 更新统计
	s.updateStats(result, false)

	return result, nil
}