import { describe, it, expect } from 'vitest';
import { SELF } from 'cloudflare:test';
import { healthRouter } from '../src/routes/health';
import type { Bindings, ExecutionContext } from '../src/types';

describe('GET /health — bundle_version 欄位', () => {
  it('無 ARCRUN_BUNDLE_VERSION 時省略該欄（老實例情境）', async () => {
    // wrangler.test.toml 不設此 var → health.ts 省略 bundle_version 欄位。
    // daemon 端讀不到該欄＝當作空字串＝判 stale，對老實例而言**這是正確行為**
    //（見 health.ts 檔頭註解）。此處驗「省略」而非「回空字串」，與實作對齊。
    const res = await SELF.fetch('http://localhost/health');
    const data = await res.json() as { ok: boolean; bundle_version?: string };
    expect(res.status).toBe(200);
    expect(data.ok).toBe(true);
    expect(data.bundle_version).toBeUndefined();
  });

  it('有 ARCRUN_BUNDLE_VERSION 時回其值（安裝器注入情境）', async () => {
    const fakeEnv = { ARCRUN_BUNDLE_VERSION: '2026-07-28/6d06162' } as unknown as Bindings;
    const res = await healthRouter.fetch(
      new Request('http://localhost/health'),
      fakeEnv,
      {} as ExecutionContext,
    );
    const data = await res.json() as { ok: boolean; bundle_version: string };
    expect(data.ok).toBe(true);
    expect(data.bundle_version).toBe('2026-07-28/6d06162');
  });
});