Function generateSessionTitle

src/renderer/src/services/titleService.ts:605–647

(
  messages: ChatMessage[],
  maxLength: number = 20
)

 * @param maxLength 标题最大长度
 */
export async function generateSessionTitle(
  messages: ChatMessage[],
  maxLength: number = 20
): Promise<TitleGenerationResult> {
  const { llmConfig, modelConfig } = getDefaultConfigs()

  if (!llmConfig) {
    return { title: '', success: false, error: '未配置 LLM' }
  }

  if (messages.length === 0) {
    return { title: '', success: false, error: '对话为空' }
  }

  try {
    // 构建对话内容摘要（取前几条消息）
    const conversationContent = messages
      .slice(0, 10) // 取前10条消息
      .map((m) => `[${m.role}]: ${truncateContent(m.content, 200)}`)
      .join('\n')

    const prompt = SESSION_TITLE_GENERATION_PROMPT.replace(
      '{content}',
      truncateContent(conversationContent, 1500)
    )
    const result = await generateWithAI(prompt, llmConfig, modelConfig || undefined)

    // 清理结果
    let title = result
      .replace(/^["'""]|["'""]$/g, '')
      .replace(/^(标题|对话标题)[：:]\s*/i, '')
      .trim()

    if (title.length > maxLength) {
      title = title.slice(0, maxLength)
    }

    return { title, success: true }
  } catch (error) {
    console.error('Failed to generate session title:', error)
    return { title: '', success: false, error: String(error) }
  }
}

/**
 * 为对话生成标题（带选项）