Function promptForInstallChoice

apps/kimi-code/src/cli/update/prompt.ts:123–188

(
  options: InstallPromptOptions,
)

}

export async function promptForInstallChoice(
  options: InstallPromptOptions,
): Promise<InstallPromptChoiceValue> {
  const input = options.input ?? process.stdin;
  const output = options.output ?? process.stdout;
  const choices = createInstallPromptChoices(options.target);
  let selectedIndex = getDefaultInstallPromptSelection(choices);

  return new Promise<InstallPromptChoiceValue>((resolve) => {
    let lineCount = 0;
    const hadRawMode = 'isRaw' in input ? input.isRaw : false;
    const canSetRawMode = typeof input.setRawMode === 'function';

    const cleanup = (): void => {
      input.off('keypress', onKeypress);
      if (canSetRawMode) {
        input.setRawMode(hadRawMode);
      }
      output.write(SHOW_CURSOR);
      output.write('\n');
    };

    const finish = (choice: InstallPromptChoiceValue): void => {
      cleanup();
      resolve(choice);
    };

    const render = (): void => {
      lineCount = writePromptFrame(
        output,
        renderInstallPrompt(options, choices, selectedIndex),
        lineCount,
      );
    };

    const onKeypress = (_input: string, key: { name?: string; ctrl?: boolean }): void => {
      if (key.name === 'up') {
        selectedIndex = moveInstallPromptSelection(selectedIndex, 'up', choices.length);
        render();
        return;
      }
      if (key.name === 'down') {
        selectedIndex = moveInstallPromptSelection(selectedIndex, 'down', choices.length);
        render();
        return;
      }
      if (key.name === 'return' || key.name === 'enter') {
        const chosen = choices[selectedIndex]?.value ?? 'skip';
        finish(chosen);
        return;
      }
      if (key.name === 'escape' || (key.ctrl === true && key.name === 'c')) {
        finish('skip');
      }
    };

    emitKeypressEvents(input);
    if (canSetRawMode) {