import { describe, expect, test, vi } from 'vitest';

import {
  createAgcDevEndpoint,
  resolveAgcDevEndpoint,
  withAgcDevEndpointEnv,
} from '../scripts/dev-port.mjs';

describe('AI 游戏创作 dev 端口', () => {
  test('Linux 使用用户端口段的 start + 5 槽位', async () => {
    const findPort = vi.fn(async ({ preferredPort }) => preferredPort);
    const endpoint = await resolveAgcDevEndpoint({
      env: { USER: 'alice', LOGNAME: 'alice' },
      platform: 'linux',
      reservePortRange: async () => ({
        username: 'alice',
        range: { start: 10000, end: 10099, label: '10000-10099' },
      }),
      findPort,
    });

    expect(endpoint).toMatchObject({
      port: 10005,
      url: 'http://127.0.0.1:10005/',
      markerUrl: 'http://127.0.0.1:10005/__agc_dev_server.json',
    });
    expect(findPort).toHaveBeenCalledWith(
      expect.objectContaining({
        preferredPort: 10005,
        portRange: { start: 10000, end: 10099, label: '10000-10099' },
        strict: false,
      }),
    );
  });

  test('Linux 槽位被占时接受本用户端口段内的漂移结果', async () => {
    const endpoint = await resolveAgcDevEndpoint({
      env: { USER: 'alice', LOGNAME: 'alice' },
      platform: 'linux',
      reservePortRange: async () => ({
        username: 'alice',
        range: { start: 10000, end: 10099, label: '10000-10099' },
      }),
      findPort: async ({ preferredPort, portRange }) => {
        expect(preferredPort).toBe(10005);
        expect(portRange?.label).toBe('10000-10099');
        return 10006;
      },
    });

    expect(endpoint.port).toBe(10006);
  });

  test('父启动器选定端口后子启动器严格使用同一端口', async () => {
    const findPort = vi.fn(async ({ preferredPort }) => preferredPort);
    await resolveAgcDevEndpoint({
      env: {
        USER: 'alice',
        LOGNAME: 'alice',
        GENARRATIVE_AGC_VITE_PORT: '10007',
      },
      platform: 'linux',
      strictConfigured: true,
      reservePortRange: async () => ({
        username: 'alice',
        range: { start: 10000, end: 10099, label: '10000-10099' },
      }),
      findPort,
    });

    expect(findPort).toHaveBeenCalledWith(
      expect.objectContaining({ preferredPort: 10007, strict: true }),
    );
  });

  test('旧五端口段无法安全扩容时 AGC 明确失败而不越界', async () => {
    await expect(
      resolveAgcDevEndpoint({
        env: { USER: 'alice', LOGNAME: 'alice' },
        platform: 'linux',
        reservePortRange: async () => ({
          username: 'alice',
          range: { start: 10000, end: 10004, label: '10000-10004' },
        }),
        findPort: async () => 10005,
      }),
    ).rejects.toThrow('缺少 AGC Vite 槽位');
  });

  test('Linux 显式 AGC 端口不能占用前五个服务槽位', async () => {
    await expect(
      resolveAgcDevEndpoint({
        env: {
          USER: 'alice',
          LOGNAME: 'alice',
          GENARRATIVE_AGC_VITE_PORT: '10004',
        },
        platform: 'linux',
        reservePortRange: async () => ({
          username: 'alice',
          range: { start: 10000, end: 10099, label: '10000-10099' },
        }),
        findPort: async () => 10004,
      }),
    ).rejects.toThrow('前五个服务槽位');
  });

  test('非 Linux 保留 3080 兼容优先端口并允许统一漂移', async () => {
    const findPort = vi.fn(async () => 3081);
    const endpoint = await resolveAgcDevEndpoint({
      env: {},
      platform: 'win32',
      findPort,
    });

    expect(endpoint.port).toBe(3081);
    expect(findPort).toHaveBeenCalledWith(
      expect.objectContaining({ preferredPort: 3080, portRange: null }),
    );
  });

  test('最终端口通过单一环境变量传给 Tauri 和 Vite 子进程', () => {
    expect(
      withAgcDevEndpointEnv(createAgcDevEndpoint(10008), { KEEP_ME: 'yes' }),
    ).toMatchObject({
      KEEP_ME: 'yes',
      GENARRATIVE_AGC_VITE_PORT: '10008',
    });
  });
});