import { afterEach, describe, expect, it, vi } from 'vitest';
import type { ToolContext } from '@opencode-ai/plugin/tool';
import { NianCodeAgentBrowserPlugin } from '../../.opencode/plugins/agent-browser-tools';

const originalBaseUrl = process.env.NIANCODE_HOST_API_BASE_URL;
const originalToken = process.env.NIANCODE_HOST_API_TOKEN;

function toolContext(directory: string): ToolContext {
  return {
    sessionID: 'session-1',
    messageID: 'message-1',
    agent: 'build',
    directory,
    worktree: directory,
    abort: new AbortController().signal,
    metadata: vi.fn(),
    ask: vi.fn(),
  };
}

function response(payload: Record<string, unknown>, status = 200): Response {
  return new Response(JSON.stringify(payload), {
    status,
    headers: { 'Content-Type': 'application/json' },
  });
}

afterEach(() => {
  vi.unstubAllGlobals();
  vi.restoreAllMocks();
  if (originalBaseUrl === undefined) delete process.env.NIANCODE_HOST_API_BASE_URL;
  else process.env.NIANCODE_HOST_API_BASE_URL = originalBaseUrl;
  if (originalToken === undefined) delete process.env.NIANCODE_HOST_API_TOKEN;
  else process.env.NIANCODE_HOST_API_TOKEN = originalToken;
});

describe('Agent Browser OpenCode plugin', () => {
  it('loads the bundled runtime plugin artifact', async () => {
    const bundled = await import(
      '../../.opencode/skills/agent-browser/.opencode/plugins/niancode-agent-browser.js'
    );

    expect(bundled.NianCodeAgentBrowserPlugin).toBeTypeOf('function');
  });

  it('binds lifecycle requests to context.directory without exposing model-selected ids', async () => {
    process.env.NIANCODE_HOST_API_BASE_URL = 'http://127.0.0.1:43210/';
    process.env.NIANCODE_HOST_API_TOKEN = 'host-token';
    const fetchMock = vi.fn(async () => response({
      success: true,
      browser: { state: 'attached', url: 'http://localhost:5173' },
    }));
    vi.stubGlobal('fetch', fetchMock);
    const plugin = await NianCodeAgentBrowserPlugin();

    await plugin.tool.browser_context.execute(
      { action: 'open', url: 'http://localhost:5173' },
      toolContext('D:\\Students\\demo'),
    );

    expect(fetchMock).toHaveBeenCalledOnce();
    expect(fetchMock.mock.calls[0][0]).toBe('http://127.0.0.1:43210/api/agent-browser/open');
    const init = fetchMock.mock.calls[0][1] as RequestInit;
    expect(init.headers).toMatchObject({ Authorization: 'Bearer host-token' });
    expect(JSON.parse(String(init.body))).toEqual({
      project_path: 'D:\\Students\\demo',
      url: 'http://localhost:5173',
    });
    expect(String(init.body)).not.toMatch(/projectId|tabId|webContentsId/);
  });

  it('returns Full CDP results and event pages without stripping nested data', async () => {
    process.env.NIANCODE_HOST_API_BASE_URL = 'http://127.0.0.1:43210';
    process.env.NIANCODE_HOST_API_TOKEN = 'host-token';
    const fullResult = {
      kind: 'inline',
      value: {
        result: {
          type: 'object',
          value: { headers: { authorization: 'page-owned-value' }, nested: [1, 2, 3] },
        },
      },
    };
    const fullPage = {
      events: [{
        sequence: 41,
        method: 'Network.responseReceived',
        params: { response: { headers: { 'x-debug': 'complete' } } },
      }],
      nextCursor: 41,
      hasMore: false,
    };
    const fetchMock = vi.fn()
      .mockResolvedValueOnce(response({ success: true, result: fullResult }))
      .mockResolvedValueOnce(response({ success: true, page: fullPage }));
    vi.stubGlobal('fetch', fetchMock);
    const plugin = await NianCodeAgentBrowserPlugin();
    const context = toolContext('D:\\Students\\demo');

    const sendResult = await plugin.tool.browser_cdp.execute({
      action: 'send',
      method: 'Runtime.evaluate',
      params: { expression: 'window.__debugState' },
    }, context);
    const eventsResult = await plugin.tool.browser_cdp.execute({
      action: 'read_events',
      after: 30,
      methods: ['Network.responseReceived'],
    }, context);

    expect(sendResult).toMatchObject({ output: JSON.stringify(fullResult, null, 2) });
    expect(eventsResult).toMatchObject({ output: JSON.stringify(fullPage, null, 2) });
    expect(JSON.parse(String((fetchMock.mock.calls[0][1] as RequestInit).body))).toEqual({
      project_path: 'D:\\Students\\demo',
      method: 'Runtime.evaluate',
      params: { expression: 'window.__debugState' },
    });
    expect(JSON.parse(String((fetchMock.mock.calls[1][1] as RequestInit).body))).toEqual({
      project_path: 'D:\\Students\\demo',
      after: 30,
      methods: ['Network.responseReceived'],
    });
  });
});