// Copyright 2026 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This dialog will be shown during M146 and removed by M147.
//
// To enable:
//   --enable-features=DevToolsGeminiRebranding

import '../../ui/components/switch/switch.js';
import '../../ui/kit/kit.js';

import * as Common from '../../core/common/common.js';
import * as Host from '../../core/host/host.js';
import * as i18n from '../../core/i18n/i18n.js';
import * as Root from '../../core/root/root.js';
import * as Geometry from '../../models/geometry/geometry.js';
import * as Buttons from '../../ui/components/buttons/buttons.js';
import * as UI from '../../ui/legacy/legacy.js';
import {html, render} from '../../ui/lit/lit.js';
import * as VisualLogging from '../../ui/visual_logging/visual_logging.js';

import styles from './geminiRebrandPromoDialog.css.js';

const UIStrings = {
  /**
   * @description Aria label for the dialog
   */
  dialogAriaLabel: 'Gemini 3 Flash in DevTools',
  /**
   *
   * @description Button text for dismissing the dialog.
   */
  dismiss: 'Dismiss',
  /**
   * @description Button text for getting started.
   */
  getStarted: 'Get started',
  /**
   * @description Detail message shown in the dialog.
   */
  detailAiCompanion: 'Meet your AI-powered companion for web dev',
  /**
   * @description Detail message shown in the dialog.
   */
  detailConsoleErrors: 'Get instant, accurate answers for console errors',
  /**
   * @description Detail message shown in the dialog.
   */
  detailGenerateCode: 'Generate CSS and JS snippets on the fly',
  /**
   * @description Detail message shown in the dialog.
   */
  detailPerformance: 'Automatically find issues in performance traces',
} as const;

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

interface ViewInput {
  onGetStartedClick: () => void;
  onCancelClick: () => void;
}

type View = (input: ViewInput, output: undefined, target: HTMLElement) => void;

const PROMO_IMAGE_1X = new URL('../../Images/geminiInDevTools.png', import.meta.url).toString();
const PROMO_IMAGE_2X = new URL('../../Images/geminiInDevTools_2x.png', import.meta.url).toString();

export const DEFAULT_VIEW: View = (input, _output, target): void => {
  // clang-format off
  render(
    html`
      <style>${styles}</style>

      <div class="header">
        <div class="title">Gemini 3 Flash in DevTools</div>
        <div class="close-button">
          <devtools-button
            aria-hidden="true"
            tabindex="-1"
            .iconName=${'cross'}
            .variant=${Buttons.Button.Variant.ICON}
            .size=${Buttons.Button.Size.REGULAR}
            .title=${i18nString(UIStrings.dismiss)}
            jslog=${VisualLogging.close().track({click: true}).context('gemini-promo-dismiss')}
            @click=${() => input.onCancelClick()}
          ></devtools-button>
        </div>
      </div>

      <img class="banner-image" srcset=${`${PROMO_IMAGE_1X} 1x, ${PROMO_IMAGE_2X} 2x`}>

      <div class="main-content">
        <div class="detail-row">
          <devtools-icon name="performance"></devtools-icon>
          <div>${i18nString(UIStrings.detailAiCompanion)}</div>
        </div>
        <div class="detail-row">
          <devtools-icon name="lightbulb-spark"></devtools-icon>
          <div>${i18nString(UIStrings.detailConsoleErrors)}</div>
        </div>
        <div class="detail-row">
          <devtools-icon name="text-analysis"></devtools-icon>
          <div>${i18nString(UIStrings.detailGenerateCode)}</div>
        </div>
        <div class="detail-row">
          <devtools-icon name="smart-assistant"></devtools-icon>
          <div>${i18nString(UIStrings.detailPerformance)}</div>
        </div>
      </div>

      <div class="buttons">
        <devtools-button
          .variant=${Buttons.Button.Variant.OUTLINED}
          jslog=${VisualLogging.close().track({click: true}).context('gemini-promo-dismiss')}
          @click=${input.onCancelClick}>${i18nString(UIStrings.dismiss)}</devtools-button>
        <devtools-button
          .variant=${Buttons.Button.Variant.PRIMARY}
          .jslogContext=${'gemini-promo-get-started'}
          @click=${input.onGetStartedClick}>${i18nString(UIStrings.getStarted)}</devtools-button>
      </div>
    `,
    target
  );
  // clang-format on
};

export class GeminiRebrandPromoDialog extends UI.Widget.VBox {
  #view: View;
  #dialog: UI.Dialog.Dialog;

  constructor(
      options: {
        dialog: UI.Dialog.Dialog,
        onSuccess?: () => void,
        onCancel?: () => void,
      },
      view?: View) {
    super();
    this.#dialog = options.dialog;
    this.#view = view ?? DEFAULT_VIEW;
    this.requestUpdate();
  }

  async #onGetStartedClick(): Promise<void> {
    this.#dialog.hide();
    await UI.ViewManager.ViewManager.instance().showView('freestyler');
  }

  #onCancelClick(): void {
    this.#dialog.hide();
  }

  override performUpdate(): void {
    const viewInput: ViewInput = {
      onGetStartedClick: this.#onGetStartedClick.bind(this),
      onCancelClick: this.#onCancelClick.bind(this),
    };

    this.#view(viewInput, undefined, this.contentElement);
  }

  static show(): void {
    const dialog = new UI.Dialog.Dialog('gemini-promo-dialog');
    dialog.setAriaLabel(i18nString(UIStrings.dialogAriaLabel));
    dialog.setMaxContentSize(new Geometry.Size(384, 500));
    dialog.setSizeBehavior(UI.GlassPane.SizeBehavior.SET_EXACT_WIDTH_MAX_HEIGHT);
    dialog.setDimmed(true);

    new GeminiRebrandPromoDialog({dialog}).show(dialog.contentElement);
    dialog.show(undefined, /* stack */ true);
  }

  static async maybeShow(): Promise<void> {
    if (!Root.Runtime.hostConfig.aidaAvailability?.enabled) {
      return;
    }

    const currentAidaAvailability = await Host.AidaClient.AidaClient.checkAccessPreconditions();
    if (currentAidaAvailability !== Host.AidaClient.AidaAccessPreconditions.AVAILABLE) {
      return;
    }

    const setting = Common.Settings.Settings.instance().createSetting<boolean>(
        'gemini-promo-dialog-shown', false, Common.Settings.SettingStorageType.SYNCED);
    if (setting.get()) {
      return;
    }

    setting.set(true);
    GeminiRebrandPromoDialog.show();
  }
}