// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/* eslint-disable @devtools/no-imperative-dom-api */

import * as i18n from '../../core/i18n/i18n.js';
import type * as Platform from '../../core/platform/platform.js';
import * as Protocol from '../../generated/protocol.js';
import type * as IssuesManager from '../../models/issues_manager/issues_manager.js';

import {AffectedResourcesView} from './AffectedResourcesView.js';

const UIStrings = {
  /**
   * @description Label for number of affected resources indication in issue view
   */
  nResources: '{n, plural, =1 {# resource} other {# resources}}',
  /**
   * @description Title for the 'Frame' column.
   */
  frameId: 'Frame',
  /**
   * @description Label for the violating node link in the issue view.
   */
  violatingNode: 'Violating node',
} as const;

const str_ = i18n.i18n.registerUIStrings('panels/issues/GenericIssueDetailsView.ts', UIStrings);
const i18nString = i18n.i18n.getLocalizedString.bind(undefined, str_);

export class GenericIssueDetailsView extends AffectedResourcesView {
  protected getResourceNameWithCount(count: number): Platform.UIString.LocalizedString {
    return i18nString(UIStrings.nResources, {n: count});
  }

  #appendDetails(genericIssues: ReadonlySet<IssuesManager.GenericIssue.GenericIssue>): void {
    const header = document.createElement('tr');

    const sampleIssueDetails = genericIssues.values().next().value?.details();
    if (sampleIssueDetails?.frameId) {
      this.appendColumnTitle(header, i18nString(UIStrings.frameId));
    }

    // Only some `GenericIssueDetails` have information for the 'affected
    // resources' view. We'll count them and only call `#appendDetail` for
    // those. `updateAffectedResourceCount` will hide the section if the
    // count is zero.
    this.affectedResources.appendChild(header);
    let count = 0;
    for (const genericIssue of genericIssues) {
      const hasAffectedResource = genericIssue.details().frameId || genericIssue.details().violatingNodeId;
      if (hasAffectedResource) {
        count++;
        void this.#appendDetail(genericIssue);
      }
    }
    this.updateAffectedResourceCount(count);
  }

  async #appendDetail(genericIssue: IssuesManager.GenericIssue.GenericIssue): Promise<void> {
    const element = document.createElement('tr');
    element.classList.add('affected-resource-directive');

    const details = genericIssue.details();
    if (details.frameId) {
      element.appendChild(this.createFrameCell(details.frameId, genericIssue.getCategory()));
    }
    if (details.violatingNodeId) {
      const target = genericIssue.model()?.target() || null;
      element.appendChild(await this.createElementCell(
          {backendNodeId: details.violatingNodeId, nodeName: this.violatingNodeIdName(details.errorType), target},
          genericIssue.getCategory()));
    }

    this.affectedResources.appendChild(element);
  }

  private violatingNodeIdName(errorType: Protocol.Audits.GenericIssueErrorType): Platform.UIString.LocalizedString {
    switch (errorType) {
      case Protocol.Audits.GenericIssueErrorType.FormLabelForNameError:
        // Since the error is referencing the <label> tag, this string doesn't
        // need to be translated.
        return i18n.i18n.lockedString('Label');
      default:
        return i18nString(UIStrings.violatingNode);
    }
  }

  update(): void {
    this.clear();
    const issues = this.issue.getGenericIssues();
    if (issues.size > 0) {
      this.#appendDetails(issues);
    } else {
      this.updateAffectedResourceCount(0);
    }
  }
}