Genarrative/apps/ai-game-creator-shell/src/features/app-shell/homeWebPreflight.ts

import type { ProjectStartMode, TauriInvoke } from '../../app/types';
import type { HomeCreationType } from '../../view/home/useHomeDraftStore';

export const HOME_WEB_PREFLIGHT_FAILURE =
  'Web 游戏环境预检未通过，请检查 Node/npm 或浏览器后重试；尚未开始生成。';

export const HOME_WEB_PREFLIGHT_IPC_FAILURE =
  'Web 游戏环境预检调用失败，客户端连接异常；请重启客户端后重试，尚未开始生成。';

type HomeWebPreflightReport = {
  status?: string;
  code?: string;
};

function knownPreflightCode(value: unknown): string | undefined {
  const text = value instanceof Error ? value.message : value;
  if (typeof text !== 'string') return undefined;
  const match = text.match(
    /(?:预检未通过：|预检未通过（|code[=:])([a-z0-9-]+)/i,
  );
  return match?.[1];
}

export function homeWebPreflightErrorMessage(value: unknown): string {
  if (value instanceof Error && value.message === HOME_WEB_PREFLIGHT_FAILURE) {
    return HOME_WEB_PREFLIGHT_FAILURE;
  }
  const code = knownPreflightCode(value);
  if (code) return `Web 游戏环境预检未通过（${code}）；尚未开始生成。`;
  return HOME_WEB_PREFLIGHT_IPC_FAILURE;
}

function isHostPreflightError(value: unknown): boolean {
  if (!(value instanceof Error)) return false;
  return (
    value.message === HOME_WEB_PREFLIGHT_FAILURE ||
    Boolean(knownPreflightCode(value.message))
  );
}

export async function ensureHomeWebCreationEnvironment(
  invoke: TauriInvoke,
  creationType: HomeCreationType,
  startMode: ProjectStartMode,
): Promise<void> {
  if (creationType !== 'game' || startMode !== 'direct-build') return;
  let lastError: unknown;
  for (let attempt = 0; attempt < 2; attempt += 1) {
    try {
      const report = await invoke<HomeWebPreflightReport>(
        'preflight_web_game_creation',
      );
      if (report?.status === 'ready') return;
      throw new Error(
        report?.code
          ? `Web 游戏环境预检未通过：${report.code}`
          : HOME_WEB_PREFLIGHT_FAILURE,
      );
    } catch (error) {
      lastError = error;
      const code = knownPreflightCode(error);
      if (isHostPreflightError(error) || code || attempt === 1) {
        throw new Error(homeWebPreflightErrorMessage(error));
      }
      await new Promise((resolve) => window.setTimeout(resolve, 250));
    }
  }
  throw new Error(homeWebPreflightErrorMessage(lastError));
}