/**
 * Copyright (c) HashiCorp, Inc.
 * SPDX-License-Identifier: BUSL-1.1
 */

import { module, test } from 'qunit';
import { setupRenderingTest } from 'ember-qunit';
import { render, fillIn, findAll, click, find } from '@ember/test-helpers';
import sinon from 'sinon';
import hbs from 'htmlbars-inline-precompile';
import { GENERAL } from 'vault/tests/helpers/general-selectors';
import { setupMirage } from 'ember-cli-mirage/test-support';
import { capabilitiesStub, overrideResponse } from 'vault/tests/helpers/stubs';

const INITIALIZED_NAMESPACES = ['root', 'parent1', 'parent1/child1'];

module('Integration | Component | namespace-picker', function (hooks) {
  setupRenderingTest(hooks);
  setupMirage(hooks);

  hooks.beforeEach(function () {
    const authService = this.owner.lookup('service:auth');
    this.authStub = sinon.stub(authService, 'authData');
    this.authStub.value({ userRootNamespace: '' });

    this.nsService = this.owner.lookup('service:namespace');
    // the path in the namespace service denotes the current namespace context a user is in
    this.nsService.path = 'parent1/child1';
    this.server.get('/sys/internal/ui/namespaces', () => {
      return { data: { keys: ['parent1/', 'parent1/child1/'] } };
    });
  });

  hooks.afterEach(function () {
    this.authStub.restore();
  });

  test('it focuses the search input field when the component is loaded', async function (assert) {
    await render(hbs`<NamespacePicker />`);
    await click(GENERAL.button('namespace-picker'));

    // Verify that the search input field is focused
    const searchInput = find(GENERAL.inputByAttr('Search namespaces'));
    assert.strictEqual(
      document.activeElement,
      searchInput,
      'The search input field is focused on component load'
    );
  });

  test('it selects the current namespace', async function (assert) {
    await render(hbs`<NamespacePicker />`);
    assert.dom(GENERAL.button('namespace-picker')).hasText('child1', 'it just displays the namespace node');
    await click(GENERAL.button('namespace-picker'));
    assert
      .dom(GENERAL.button(this.nsService.path))
      .hasAttribute('aria-selected', 'true', 'the current namespace path is selected');
    assert.dom(`${GENERAL.button(this.nsService.path)} ${GENERAL.icon('check')}`).exists();
  });

  test('it filters namespace options based on search input', async function (assert) {
    await render(hbs`<NamespacePicker/>`);
    await click(GENERAL.button('namespace-picker'));

    // Verify all namespaces are displayed initially which are pre-populated in the NamespaceService
    for (const namespace of INITIALIZED_NAMESPACES) {
      assert.dom(GENERAL.button(namespace)).exists(`Namespace "${namespace}" is displayed initially`);
    }
    // Simulate typing into the search input
    await fillIn(GENERAL.inputByAttr('Search namespaces'), 'child1');

    // Verify that only namespaces matching the search input are displayed
    assert.strictEqual(
      findAll(GENERAL.inputByAttr('Search namespaces')).length,
      1,
      'Only matching namespaces are displayed after filtering'
    );

    // Clear the search input
    await fillIn(GENERAL.inputByAttr('Search namespaces'), '');

    // Verify all namespaces are displayed after clearing the search input
    assert.dom(GENERAL.button('root')).exists('Namespace "root" is displayed');
    assert.dom(GENERAL.button('parent1')).exists('Namespace "parent1" is displayed');
    assert.dom(GENERAL.button('parent1/child1')).exists('Namespace "parent1/child1" is displayed');
    assert.strictEqual(
      findAll(`ul ${GENERAL.button()}`).length,
      3,
      'Three namespaces are displayed after clearing the search input'
    );
  });

  module('capabilities', function (hooks) {
    hooks.beforeEach(function () {
      // the capabilities service prepends the user's root namespace to API paths when checking permissions.
      // For simplicity, test permissions from the "root" namespace context
      this.nsService.path = '';
    });

    test('it shows the "Manage" action when user has canList permissions', async function (assert) {
      this.server.post('/sys/capabilities-self', () => capabilitiesStub('sys/namespaces', ['list']));

      await render(hbs`<NamespacePicker />`);
      await click(GENERAL.button('namespace-picker'));

      assert.dom(GENERAL.button('Manage')).exists('Manage button is visible');
    });

    test('it hides the "Manage" button when canList is false', async function (assert) {
      this.server.post('/sys/capabilities-self', capabilitiesStub(`sys/namespaces`, ['deny']));
      await render(hbs`<NamespacePicker />`);
      await click(GENERAL.button('namespace-picker'));

      // Verify that the buttons are hidden
      assert.dom(GENERAL.button('Manage')).doesNotExist('Manage button is hidden');
    });

    test('it shows "Manage" button when the capabilities request throws an error', async function (assert) {
      // It's rare for the capabilities request to fail (if it does, it's usually because the request is made in the wrong namespace context).
      // If it fails, the UI should show resources and rely on the API to gate them appropriately.
      this.server.post('/sys/capabilities-self', () => overrideResponse(403));

      await render(hbs`<NamespacePicker />`);
      await click(GENERAL.button('namespace-picker'));
      assert.dom(GENERAL.button('Manage')).exists();
    });
  });

  test('it updates the namespace list after clicking "Refresh list"', async function (assert) {
    await render(hbs`<NamespacePicker />`);
    await click(GENERAL.button('namespace-picker'));

    // Verify initial namespaces are displayed
    assert.dom(GENERAL.button('parent1')).exists('Namespace "parent1" is displayed');
    assert.dom(GENERAL.button('parent1/child1')).exists('Namespace "parent1/child1" is displayed');
    assert.dom(GENERAL.button('root')).exists('Namespace "root" is displayed');
    assert
      .dom(GENERAL.button('new-namespace'))
      .doesNotExist('Namespace "new-namespace" is not displayed initially');

    // Re-stub request from beforeEach hook with a new namespace
    this.server.get('/sys/internal/ui/namespaces', () => {
      return {
        data: { keys: ['parent1/', 'parent1/child1/', 'new-namespace/'] },
      };
    });
    // Click the "Refresh list" button
    await click(GENERAL.button('Refresh list'));

    // Verify the new namespace is displayed
    assert
      .dom(GENERAL.button('new-namespace'))
      .exists('Namespace "new-namespace" is displayed after refreshing');
  });

  test("it should display the user's root namespace if it is not true root (an empty string)", async function (assert) {
    this.authStub.value({ userRootNamespace: 'admin' }); // User's root namespace is "admin"
    this.nsService.path = 'admin'; // User is current in the "admin" namespace
    // The user also has access to a child namespace. This additional setup is important because as a fallback
    // the current namespace is displayed in the dropdown if nothing is returned from this endpoint.
    this.server.get('/sys/internal/ui/namespaces', () => {
      return { data: { keys: ['child1/'] } };
    });
    await render(hbs`<NamespacePicker />`);
    assert
      .dom(GENERAL.button('namespace-picker'))
      .hasText('admin', `shows the namespace 'admin' in the toggle component`);
    await click(GENERAL.button('namespace-picker'));
    assert.dom(`li ${GENERAL.button()}`).exists({ count: 2 }, 'namespace picker only contains 2 options');
    assert.dom(GENERAL.button('admin')).exists();
    assert.dom(GENERAL.button('admin/child1')).exists();
  });

  test('it selects the correct namespace when matching nodes exist', async function (assert) {
    // stub response so that two namespaces have matching node names 'child1'
    this.server.get('/sys/internal/ui/namespaces', () => {
      return { data: { keys: ['parent1/', 'parent1/child1', 'anotherParent/', 'anotherParent/child1'] } };
    });
    await render(hbs`<NamespacePicker />`);
    assert.dom(GENERAL.button('namespace-picker')).hasText('child1', 'it displays the namespace node');
    await click(GENERAL.button('namespace-picker'));
    assert
      .dom(GENERAL.button(this.nsService.path))
      .hasAttribute('aria-selected', 'true', 'the current namespace path is selected');
    assert.dom('[aria-selected="true"]').exists({ count: 1 }, 'only one option is selected');
    assert.dom(GENERAL.icon('check')).exists({ count: 1 }, 'only one check mark renders');
  });
});