Function deleteChatSession

cli/src/utils/chat-history.ts:129–167

(chatId: string)

 * Delete a saved chat session from local history.
 */
export function deleteChatSession(chatId: string): boolean {
  try {
    const safeChatId = chatId.trim()
    if (
      !safeChatId ||
      safeChatId === '.' ||
      safeChatId === '..' ||
      path.basename(safeChatId) !== safeChatId
    ) {
      logger.warn({ chatId }, 'Refusing to delete invalid chat id')
      return false
    }

    const chatsDir = getChatsDir()
    const chatPath = path.join(chatsDir, safeChatId)

    if (!fs.existsSync(chatPath)) {
      return false
    }

    const stat = fs.statSync(chatPath)
    if (!stat.isDirectory()) {
      logger.warn(
        { chatId, chatPath },
        'Refusing to delete non-directory chat path',
      )
      return false
    }

    fs.rmSync(chatPath, { recursive: true, force: false })
    return true
  } catch (error) {
    logger.error(
      { chatId, error: error instanceof Error ? error.message : String(error) },
      'Failed to delete chat session',
    )
    return false
  }
}

/**
 * Format a timestamp relative to now (e.g., "2 hours ago", "yesterday")