import { describe, expect, it } from 'vitest';
import { describeAccess, describeDualAccess, preferredUrl } from '../src/config/access-hint';

/**
 * 启动日志里"该访问哪个地址"必须与真实绑定一致。
 * 之前的写法直接把 bindHost 拼进 URL，绑定 0.0.0.0 时会打印
 * http://0.0.0.0:3000——浏览器打不开，排障时会被误导。
 */
describe('启动日志的访问地址推导', () => {
  it('绑定回环时只给回环地址，并明确标注仅本机可访问', () => {
    for (const host of ['127.0.0.1', 'localhost', '::1']) {
      const { listen, urls } = describeAccess(host, 3000);
      expect(listen).toContain(host);
      expect(listen).toContain('仅本机可访问');
      expect(urls).toEqual([`http://${host}:3000`]);
    }
  });

  it('绑定通配地址时给出回环 + 真实网卡地址，且绝不出现 0.0.0.0', () => {
    for (const host of ['0.0.0.0', '::', '*', '']) {
      const { listen, urls } = describeAccess(host, 3000);
      expect(listen).toContain('全部网卡');
      expect(urls[0]).toBe('http://127.0.0.1:3000');
      expect(urls.every((url) => !url.includes('0.0.0.0'))).toBe(true);
      // 至少要有回环地址可用
      expect(urls.length).toBeGreaterThanOrEqual(1);
    }
  });

  it('绑定具体网卡时只给该地址，并提示范围', () => {
    const { listen, urls } = describeAccess('192.0.2.20', 8080);
    expect(listen).toBe('192.0.2.20:8080（仅该地址可访问）');
    expect(urls).toEqual(['http://192.0.2.20:8080']);
  });

  it('端口号被完整带进每个地址', () => {
    expect(describeAccess('0.0.0.0', 3123).urls.every((url) => url.endsWith(':3123'))).toBe(true);
    expect(describeAccess('10.0.0.1', 80).urls).toEqual(['http://10.0.0.1:80']);
  });
});

/**
 * 双端口模式下，启动日志必须分别说清"客户端调接口用哪个地址"和
 * "浏览器看管理页面用哪个地址"，否则客户端会把管理端口当成 API 端口。
 */
describe('双端口访问提示', () => {
  it('分端口时分别给出软件 API 与管理端两行，并标明各自职责', () => {
    const hint = describeDualAccess({
      apiHost: '0.0.0.0',
      apiPort: 3111,
      adminHost: '0.0.0.0',
      adminPort: 3112,
    });
    expect(hint.sharedPort).toBe(false);
    expect(hint.apiLine).toContain('软件 API 端口：');
    expect(hint.apiLine).toContain(':3111');
    expect(hint.apiLine).toContain('/api、/health、/static、/contracts');
    expect(hint.adminLine).toContain('管理端端口：');
    expect(hint.adminLine).toContain(':3112');
    expect(hint.adminLine).toContain('浏览器访问');
    expect(hint.adminLine).not.toContain('未分端口');
    expect(hint.sharedNotice).toBe('');
  });

  it('绝不把 0.0.0.0 写进可访问地址', () => {
    const hint = describeDualAccess({
      apiHost: '0.0.0.0',
      apiPort: 3000,
      adminHost: '0.0.0.0',
      adminPort: 3001,
    });
    expect(hint.apiLine).not.toContain('0.0.0.0');
    expect(hint.adminLine).not.toContain('0.0.0.0');
    expect(hint.api.urls[0]).toBe('http://127.0.0.1:3000');
  });

  it('ADMIN_PORT === PORT 时标记为未分端口并给出提示', () => {
    const hint = describeDualAccess({
      apiHost: '0.0.0.0',
      apiPort: 3000,
      adminHost: '0.0.0.0',
      adminPort: 3000,
    });
    expect(hint.sharedPort).toBe(true);
    expect(hint.sharedNotice).toContain('未分端口');
    expect(hint.adminLine).toContain('未分端口');
    expect(hint.adminLine).toContain(':3000');
  });

  it('绑定回环时保留"只能本机访问"的告警依据', () => {
    const hint = describeDualAccess({
      apiHost: '127.0.0.1',
      apiPort: 3000,
      adminHost: '127.0.0.1',
      adminPort: 3001,
    });
    expect(hint.loopbackOnly).toBe(true);
    expect(hint.apiLine).toContain('http://127.0.0.1:3000');
  });

  it('preferredUrl 优先挑真实网卡地址，没有才回落到回环地址', () => {
    expect(
      preferredUrl({
        listen: '',
        urls: ['http://127.0.0.1:3000', 'http://192.0.2.10:3000'],
        loopbackOnly: false,
      }),
    ).toBe('http://192.0.2.10:3000');
    expect(
      preferredUrl({ listen: '', urls: ['http://127.0.0.1:3000'], loopbackOnly: true }),
    ).toBe('http://127.0.0.1:3000');
  });
});