/**
 * deploy-url.test.ts — 離線驗證下載源組裝（Arcrun#4：codeload → Gitea archive）。
 *
 * 涵蓋純函式：buildArchiveUrl（URL 組裝）、buildDownloadHeaders（token → header）。
 * 打真 Gitea 下載/部署是 leo 的閘，不在單元測試做。
 *
 * 用 Node 內建 test runner（node --test，零額外依賴；Node ≥22.18 自帶 TS type-stripping）。
 */
import { test } from 'node:test';
import assert from 'node:assert/strict';
import { buildArchiveUrl, buildDownloadHeaders } from '../src/lib/deploy.ts';

test('buildArchiveUrl 指向 Gitea archive API，不再是 GitHub codeload', () => {
  const url = buildArchiveUrl('main', 'bust123');
  assert.ok(url.startsWith('https://git.uncle6.me/api/v1/repos/Leo/Arcrun/archive/main.tar.gz'),
    `預期 Gitea archive API，實得：${url}`);
  assert.ok(!/codeload|github\.com/.test(url), `不應含 GitHub 下載源：${url}`);
});

test('buildArchiveUrl 帶 cache-buster query（#13 P2 stale 防護沿用）', () => {
  const url = buildArchiveUrl('main', 'abc def'); // 含空白 → 應被 encode
  assert.match(url, /[?&]_cb=abc%20def$/);
});

test('buildArchiveUrl ref 進 archive 檔名（tag/branch 皆走同路徑）', () => {
  const url = buildArchiveUrl('v1.2.3', 'x');
  assert.ok(url.includes('/archive/v1.2.3.tar.gz?'), url);
});

test('buildArchiveUrl 可用 repo / base 覆蓋（fork/自架站台）', () => {
  const url = buildArchiveUrl('main', 'x', 'Mira/Arcrun', 'https://gitea.example.org');
  assert.ok(url.startsWith('https://gitea.example.org/api/v1/repos/Mira/Arcrun/archive/main.tar.gz'), url);
});

test('buildDownloadHeaders：有 token → 帶 Gitea 慣用 Authorization: token <T>', () => {
  const h = buildDownloadHeaders('secrettok');
  assert.equal(h.Authorization, 'token secrettok');
  assert.equal(h['Cache-Control'], 'no-cache');
  assert.equal(h.Pragma, 'no-cache');
});

test('buildDownloadHeaders：無 token（public repo）→ 不帶 Authorization，仍 no-cache', () => {
  // 顯式傳 undefined 會觸發預設參數 giteaToken()（讀 env）；要驗 public 路徑需清掉 env token。
  const saved = { a: process.env.ARCRUN_GITEA_TOKEN, g: process.env.GITEA_TOKEN };
  delete process.env.ARCRUN_GITEA_TOKEN;
  delete process.env.GITEA_TOKEN;
  try {
    const h = buildDownloadHeaders(); // 走預設 → giteaToken() → undefined
    assert.equal(h.Authorization, undefined);
    assert.equal(h['Cache-Control'], 'no-cache');
  } finally {
    if (saved.a !== undefined) process.env.ARCRUN_GITEA_TOKEN = saved.a;
    if (saved.g !== undefined) process.env.GITEA_TOKEN = saved.g;
  }
});

test('buildDownloadHeaders：ARCRUN_GITEA_TOKEN 優先於 GITEA_TOKEN（env 機制，不寫死）', () => {
  const saved = { a: process.env.ARCRUN_GITEA_TOKEN, g: process.env.GITEA_TOKEN };
  process.env.ARCRUN_GITEA_TOKEN = 'preferred';
  process.env.GITEA_TOKEN = 'fallback';
  try {
    assert.equal(buildDownloadHeaders().Authorization, 'token preferred');
  } finally {
    if (saved.a === undefined) delete process.env.ARCRUN_GITEA_TOKEN; else process.env.ARCRUN_GITEA_TOKEN = saved.a;
    if (saved.g === undefined) delete process.env.GITEA_TOKEN; else process.env.GITEA_TOKEN = saved.g;
  }
});

test('buildDownloadHeaders：空字串 token 視為無（避免送出 "token "）', () => {
  const h = buildDownloadHeaders('');
  assert.equal(h.Authorization, undefined);
});