// Copyright 2015 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 Common from '../../core/common/common.js';
import * as Host from '../../core/host/host.js';
import * as i18n from '../../core/i18n/i18n.js';
import * as SDK from '../../core/sdk/sdk.js';
import * as Geometry from '../../models/geometry/geometry.js';
import * as Buttons from '../../ui/components/buttons/buttons.js';
import * as SettingsUI from '../../ui/legacy/components/settings_ui/settings_ui.js';
import * as UI from '../../ui/legacy/legacy.js';
import {Directives, html, render} from '../../ui/lit/lit.js';
import * as VisualLogging from '../../ui/visual_logging/visual_logging.js';
import * as MobileThrottling from '../mobile_throttling/mobile_throttling.js';

import type {LocationDescription} from './LocationsSettingsTab.js';
import sensorsStyles from './sensors.css.js';

const UIStrings = {
  /**
   * @description Title for a group of cities
   */
  location: 'Location',
  /**
   * @description An option that appears in a drop-down to prevent the GPS location of the user from being overridden.
   */
  noOverride: 'No override',
  /**
   * @description Title of a section that contains overrides for the user's GPS location.
   */
  overrides: 'Overrides',
  /**
   * @description Text of button in Sensors View, takes the user to the custom location setting screen
   *where they can enter/edit custom locations.
   */
  manage: 'Manage',
  /**
   * @description Aria-label for location manage button in Sensors View
   */
  manageTheListOfLocations: 'Manage the list of locations',
  /**
   * @description Option in a drop-down input for selecting the GPS location of the user. As an
   *alternative to selecting a location from the list, the user can select this option and they are
   *prompted to enter the details for a new custom location.
   */
  other: 'Other…',
  /**
   * @description Title of a section in a drop-down input that contains error locations, e.g. to select
   *a location override that says 'the location is not available'. A noun.
   */
  error: 'Error',
  /**
   * @description A type of override where the geographic location of the user is not available.
   */
  locationUnavailable: 'Location unavailable',
  /**
   * @description Tooltip text telling the user how to change the value of a latitude/longitude input
   *text box. several shortcuts are provided for convenience. The placeholder can be different
   *keyboard keys, depending on the user's settings.
   * @example {Ctrl} PH1
   */
  adjustWithMousewheelOrUpdownKeys: 'Adjust with mousewheel or up/down keys. {PH1}: ±10, Shift: ±1, Alt: ±0.01',
  /**
   * @description Label for latitude of a GPS location.
   */
  latitude: 'Latitude',
  /**
   * @description Label for Longitude of a GPS location.
   */
  longitude: 'Longitude',
  /**
   * @description Label for the ID of a timezone for a particular location.
   */
  timezoneId: 'Timezone ID',
  /**
   * @description Label for the locale relevant to a custom location.
   */
  locale: 'Locale',
  /**
   * @description Label for Accuracy of a GPS location.
   */
  accuracy: 'Accuracy',
  /**
   * @description Label the orientation of a user's device e.g. tilt in 3D-space.
   */
  orientation: 'Orientation',
  /**
   * @description Option that when chosen, turns off device orientation override.
   */
  off: 'Off',
  /**
   * @description Option that when chosen, allows the user to enter a custom orientation for the device e.g. tilt in 3D-space.
   */
  customOrientation: 'Custom orientation',
  /**
   * @description Warning to the user they should enable the device orientation override, in order to
   *enable this input which allows them to interactively select orientation by dragging a 3D phone
   *model.
   */
  enableOrientationToRotate: 'Enable orientation to rotate',
  /**
   * @description Text telling the user how to use an input which allows them to interactively select
   *orientation by dragging a 3D phone model.
   */
  shiftdragHorizontallyToRotate: 'Shift+drag horizontally to rotate around the y-axis',
  /**
   * @description Message in the Sensors tool that is alerted (for screen readers) when the device orientation setting is changed
   * @example {180} PH1
   * @example {-90} PH2
   * @example {0} PH3
   */
  deviceOrientationSetToAlphaSBeta: 'Device orientation set to alpha: {PH1}, beta: {PH2}, gamma: {PH3}',
  /**
   * @description Text of orientation reset button in Sensors View of the Device Toolbar
   */
  reset: 'Reset',
  /**
   * @description Aria-label for orientation reset button in Sensors View. Command.
   */
  resetDeviceOrientation: 'Reset device orientation',
  /**
   * @description Description of the Touch select in Sensors tab
   */
  forcesTouchInsteadOfClick: 'Forces touch instead of click',
  /**
   * @description Description of the Emulate Idle State select in Sensors tab
   */
  forcesSelectedIdleStateEmulation: 'Forces selected idle state emulation',
  /**
   * @description Description of the Emulate CPU Pressure State select in Sensors tab
   */
  forcesSelectedPressureStateEmulation: 'Forces selected pressure state emulation',
  /**
   * @description Title for a group of configuration options in a drop-down input.
   */
  presets: 'Presets',
  /**
   * @description Drop-down input option for the orientation of a device in 3D space.
   */
  portrait: 'Portrait',
  /**
   * @description Drop-down input option for the orientation of a device in 3D space.
   */
  portraitUpsideDown: 'Portrait upside down',
  /**
   * @description Drop-down input option for the orientation of a device in 3D space.
   */
  landscapeLeft: 'Landscape left',
  /**
   * @description Drop-down input option for the orientation of a device in 3D space.
   */
  landscapeRight: 'Landscape right',
  /**
   * @description Drop-down input option for the orientation of a device in 3D space. Noun indicating
   *the display of the device is pointing up.
   */
  displayUp: 'Display up',
  /**
   * @description Drop-down input option for the orientation of a device in 3D space. Noun indicating
   *the display of the device is pointing down.
   */
  displayDown: 'Display down',
  /**
   * @description Label for one dimension of device orientation that the user can override.
   */
  alpha: '\u03B1 (alpha)',
  /**
   * @description Label for one dimension of device orientation that the user can override.
   */
  beta: '\u03B2 (beta)',
  /**
   * @description Label for one dimension of device orientation that the user can override.
   */
  gamma: '\u03B3 (gamma)',
} as const;
const str_ = i18n.i18n.registerUIStrings('panels/sensors/SensorsView.ts', UIStrings);
const i18nString = i18n.i18n.getLocalizedString.bind(undefined, str_);

export class SensorsView extends UI.Widget.VBox {
  readonly #locationSetting: Common.Settings.Setting<string>;
  #location: SDK.EmulationModel.Location;
  #locationOverrideEnabled: boolean;
  readonly #locationSectionElement: HTMLElement;
  private fieldsetElement!: HTMLFieldSetElement;
  private timezoneError!: HTMLElement;
  private locationSelectElement!: HTMLSelectElement;
  private latitudeInput!: HTMLInputElement;
  private longitudeInput!: HTMLInputElement;
  private timezoneInput!: HTMLInputElement;
  private localeInput!: HTMLInputElement;
  private accuracyInput!: HTMLInputElement;
  private localeError!: HTMLElement;
  private accuracyError!: HTMLElement;
  private readonly deviceOrientationSetting: Common.Settings.Setting<string>;
  private deviceOrientation: SDK.EmulationModel.DeviceOrientation;
  private deviceOrientationOverrideEnabled: boolean;
  private deviceOrientationFieldset!: HTMLFieldSetElement;
  private stageElement!: HTMLElement;
  private orientationSelectElement!: HTMLSelectElement;
  private alphaElement!: HTMLInputElement;
  private betaElement!: HTMLInputElement;
  private gammaElement!: HTMLInputElement;
  private orientationLayer!: HTMLDivElement;
  private boxMatrix?: DOMMatrix;
  private mouseDownVector?: Geometry.Vector|null;
  private originalBoxMatrix?: DOMMatrix;

  constructor() {
    super({
      jslog: `${VisualLogging.panel('sensors').track({resize: true})}`,
      useShadowDom: true,
    });
    this.registerRequiredCSS(sensorsStyles);
    this.contentElement.classList.add('sensors-view');

    this.#locationSetting = Common.Settings.Settings.instance().createSetting('emulation.location-override', '');
    this.#location = SDK.EmulationModel.Location.parseSetting(this.#locationSetting.get());
    this.#locationOverrideEnabled = false;

    this.#locationSectionElement = this.contentElement.createChild('section', 'sensors-group');
    const customLocationsSetting =
        Common.Settings.Settings.instance().moduleSetting<LocationDescription[]>('emulation.locations');
    this.renderLocationSection(this.#location, customLocationsSetting);
    customLocationsSetting.addChangeListener(() => this.renderLocationSection(this.#location, customLocationsSetting));

    this.createPanelSeparator();

    this.deviceOrientationSetting =
        Common.Settings.Settings.instance().createSetting('emulation.device-orientation-override', '');
    this.deviceOrientation = SDK.EmulationModel.DeviceOrientation.parseSetting(this.deviceOrientationSetting.get());
    this.deviceOrientationOverrideEnabled = false;

    this.createDeviceOrientationSection();

    this.createPanelSeparator();

    this.appendTouchControl();

    this.createPanelSeparator();

    this.appendIdleEmulator();

    this.createPanelSeparator();

    this.createHardwareConcurrencySection();

    this.createPanelSeparator();

    this.createPressureSection();

    this.createPanelSeparator();
  }

  private createPanelSeparator(): void {
    this.contentElement.createChild('div').classList.add('panel-section-separator');
  }

  private renderLocationSection(
      location: SDK.EmulationModel.Location,
      customLocationsSetting: Common.Settings.Setting<LocationDescription[]>): void {
    const customLocations = customLocationsSetting.get();
    let selectedIndex = 0;
    if (this.#locationOverrideEnabled) {
      if (location.unavailable) {
        selectedIndex = customLocations.length + 2;
      } else {
        selectedIndex = customLocations.length + 1;
        for (const [i, customLocation] of customLocations.entries()) {
          if (location.latitude === customLocation.lat && location.longitude === customLocation.long &&
              location.timezoneId === customLocation.timezoneId && location.locale === customLocation.locale) {
            selectedIndex = i + 1;
            break;
          }
        }
      }
    }

    const cmdOrCtrl = Host.Platform.isMac() ? '\u2318' : 'Ctrl';
    const modifierKeyMessage = i18nString(UIStrings.adjustWithMousewheelOrUpdownKeys, {PH1: cmdOrCtrl});

    this.#locationSectionElement.setAttribute('jslog', `${VisualLogging.section('location')}`);

    // clang-format off
    // eslint-disable-next-line @devtools/no-lit-render-outside-of-view
    render(
        html`
      <label class="sensors-group-title" id="location-select-label" for="location-select">${i18nString(UIStrings.location)}</label>
      <div class="geo-fields">
        <select
          id="location-select"
          ${Directives.ref((el: Element | undefined) => {
            if (el) {
              this.locationSelectElement = el as HTMLSelectElement;
            }
          })}
          .selectedIndex=${selectedIndex}
          @change=${this.#locationSelectChanged.bind(this)}
          jslog=${VisualLogging.dropDown().track({change: true})}
        >
          <option value=${NonPresetOptions.NoOverride} jslog=${VisualLogging.item('no-override')}>${i18nString(UIStrings.noOverride)}</option>
          <optgroup label=${i18nString(UIStrings.overrides)}>
            ${customLocations.map(customLocation => html`
              <option value=${JSON.stringify(customLocation)} jslog=${VisualLogging.item('custom')}>${customLocation.title}</option>
            `)}
          </optgroup>
          <option value=${NonPresetOptions.Custom} jslog=${VisualLogging.item('other')}>${i18nString(UIStrings.other)}</option>
          <optgroup label=${i18nString(UIStrings.error)}>
            <option value=${NonPresetOptions.Unavailable} jslog=${VisualLogging.item('unavailable')}>${i18nString(UIStrings.locationUnavailable)}</option>
          </optgroup>
        </select>
        <devtools-button
          .variant=${Buttons.Button.Variant.OUTLINED}
          class="manage-locations"
          @click=${() => Common.Revealer.reveal(customLocationsSetting)}
          aria-label=${i18nString(UIStrings.manageTheListOfLocations)}
          jslog=${VisualLogging.action('sensors.manage-locations').track({click: true})}
        >
          ${i18nString(UIStrings.manage)}
        </devtools-button>
        <fieldset
          id="location-override-section"
          ?disabled=${!this.#locationOverrideEnabled}
          ${Directives.ref((el: Element | undefined) => {
            if (el) {
              this.fieldsetElement = el as HTMLFieldSetElement;
            }
          })}
        >
          <div class="latlong-group">
            <!-- @ts-ignore -->
            <input
              id="latitude-input"
              type="number"
              min="-90"
              max="90"
              step="any"
              required
              .value=${String(location.latitude)}
              name="latitude"
              title=${modifierKeyMessage}
              jslog=${VisualLogging.textField('latitude').track({change: true})}
              ${Directives.ref((el: Element | undefined) => { if (el) { this.latitudeInput = el as HTMLInputElement; } })}
              @change=${this.#onLocationChange.bind(this)}
              @keydown=${this.#onLocationKeyDown.bind(this)}
              @focus=${this.#onLocationFocus.bind(this)}
            >
            <label class="latlong-title" for="latitude-input">${i18nString(UIStrings.latitude)}</label>
          </div>
          <div class="latlong-group">
            <!-- @ts-ignore -->
            <input
              id="longitude-input"
              type="number"
              min="-180"
              max="180"
              step="any"
              required
              .value=${String(location.longitude)}
              name="longitude"
              title=${modifierKeyMessage}
              jslog=${VisualLogging.textField('longitude').track({change: true})}
              ${Directives.ref((el: Element | undefined) => { if (el) { this.longitudeInput = el as HTMLInputElement; } })}
              @change=${this.#onLocationChange.bind(this)}
              @keydown=${this.#onLocationKeyDown.bind(this)}
              @focus=${this.#onLocationFocus.bind(this)}
            >
            <label class="latlong-title" for="longitude-input">${i18nString(UIStrings.longitude)}</label>
          </div>
          <div class="latlong-group">
            <input
              id="timezone-input"
              type="text"
              pattern=".*[a-zA-Z].*"
              .value=${location.timezoneId}
              name="timezone"
              jslog=${VisualLogging.textField('timezone').track({change: true})}
              ${Directives.ref((el: Element | undefined) => { if (el) { this.timezoneInput = el as HTMLInputElement; } })}
              @change=${this.#onLocationChange.bind(this)}
              @keydown=${this.#onLocationKeyDown.bind(this)}
              @focus=${this.#onLocationFocus.bind(this)}
            >
            <label class="timezone-title" for="timezone-input">${i18nString(UIStrings.timezoneId)}</label>
            <div class="timezone-error" ${Directives.ref((el: Element | undefined) => { if (el) { this.timezoneError = el as HTMLElement; } })}></div>
          </div>
          <div class="latlong-group">
            <input
              id="locale-input"
              type="text"
              pattern=".*[a-zA-Z]{2}.*"
              .value=${location.locale}
              name="locale"
              jslog=${VisualLogging.textField('locale').track({change: true})}
              ${Directives.ref((el: Element | undefined) => { if (el) { this.localeInput = el as HTMLInputElement; } })}
              @change=${this.#onLocationChange.bind(this)}
              @keydown=${this.#onLocationKeyDown.bind(this)}
              @focus=${this.#onLocationFocus.bind(this)}
            >
            <label class="locale-title" for="locale-input">${i18nString(UIStrings.locale)}</label>
            <div class="locale-error" ${Directives.ref((el: Element | undefined) => { if (el) { this.localeError = el as HTMLElement; } })}></div>
          </div>
          <div class="latlong-group">
            <!-- @ts-ignore -->
            <input
              id="accuracy-input"
              type="number"
              min="0"
              step="any"
              .value=${String(location.accuracy || SDK.EmulationModel.Location.DEFAULT_ACCURACY)}
              name="accuracy"
              jslog=${VisualLogging.textField('accuracy').track({change: true})}
              ${Directives.ref((el: Element | undefined) => { if (el) { this.accuracyInput = el as HTMLInputElement; } })}
              @change=${this.#onLocationChange.bind(this)}
              @keydown=${this.#onLocationKeyDown.bind(this)}
              @focus=${this.#onLocationFocus.bind(this)}
            >
            <label class="accuracy-title" for="accuracy-input">${i18nString(UIStrings.accuracy)}</label>
            <div class="accuracy-error" ${Directives.ref((el: Element | undefined) => { if (el) { this.accuracyError = el as HTMLElement; } })}></div>
          </div>
        </fieldset>
      </div>
    `, this.#locationSectionElement);
    // clang-format on
  }

  #locationSelectChanged(): void {
    this.fieldsetElement.disabled = false;
    this.timezoneError.textContent = '';
    this.accuracyError.textContent = '';
    const value = this.locationSelectElement.options[this.locationSelectElement.selectedIndex].value;
    if (value === NonPresetOptions.NoOverride) {
      this.#locationOverrideEnabled = false;
      this.clearFieldsetElementInputs();
      this.fieldsetElement.disabled = true;
    } else if (value === NonPresetOptions.Custom) {
      this.#locationOverrideEnabled = true;
      const location = SDK.EmulationModel.Location.parseUserInput(
          this.latitudeInput.value.trim(), this.longitudeInput.value.trim(), this.timezoneInput.value.trim(),
          this.localeInput.value.trim(), this.accuracyInput.value.trim());
      if (!location) {
        return;
      }
      this.#location = location;
    } else if (value === NonPresetOptions.Unavailable) {
      this.#locationOverrideEnabled = true;
      this.#location =
          new SDK.EmulationModel.Location(0, 0, '', '', SDK.EmulationModel.Location.DEFAULT_ACCURACY, true);
    } else {
      this.#locationOverrideEnabled = true;
      const coordinates = JSON.parse(value);
      this.#location = new SDK.EmulationModel.Location(
          coordinates.lat, coordinates.long, coordinates.timezoneId, coordinates.locale,
          coordinates.accuracy || SDK.EmulationModel.Location.DEFAULT_ACCURACY, false);
      this.latitudeInput.value = coordinates.lat;
      this.longitudeInput.value = coordinates.long;
      this.timezoneInput.value = coordinates.timezoneId;
      this.localeInput.value = coordinates.locale;
      this.accuracyInput.value = String(coordinates.accuracy || SDK.EmulationModel.Location.DEFAULT_ACCURACY);
    }

    this.applyLocation();
    if (value === NonPresetOptions.Custom) {
      this.latitudeInput.focus();
    }
  }

  #onLocationChange(event: Event): void {
    const input = event.currentTarget as HTMLInputElement;
    if (input.checkValidity()) {
      this.applyLocationUserInput();
    }
  }

  #onLocationKeyDown(event: KeyboardEvent): void {
    const input = event.currentTarget as HTMLInputElement;
    if (event.key === 'Enter') {
      if (input.checkValidity()) {
        this.applyLocationUserInput();
      }
      event.preventDefault();
      return;
    }

    const isNumeric = input === this.latitudeInput || input === this.longitudeInput || input === this.accuracyInput;
    if (!isNumeric) {
      return;
    }

    const multiplier = input === this.accuracyInput ? 1 : 0.1;
    const value = UI.UIUtils.modifiedFloatNumber(parseFloat(input.value), event, multiplier);
    if (value === null) {
      return;
    }
    const prevValue = input.value;
    input.value = String(value);
    if (input.checkValidity()) {
      this.applyLocationUserInput();
    } else {
      // If ArrowUp/ArrowDown adjusts the value out of bounds, we reset it.
      input.value = prevValue;
    }
    event.preventDefault();
  }

  #onLocationFocus(event: Event): void {
    const input = event.currentTarget as HTMLInputElement;
    input.select();
  }

  private applyLocationUserInput(): void {
    const location = SDK.EmulationModel.Location.parseUserInput(
        this.latitudeInput.value.trim(), this.longitudeInput.value.trim(), this.timezoneInput.value.trim(),
        this.localeInput.value.trim(), this.accuracyInput.value.trim());
    if (!location) {
      return;
    }

    this.timezoneError.textContent = '';
    this.accuracyError.textContent = '';

    this.setSelectElementLabel(this.locationSelectElement, NonPresetOptions.Custom);
    this.#location = location;
    this.applyLocation();
  }

  private applyLocation(): void {
    if (this.#locationOverrideEnabled) {
      this.#locationSetting.set(this.#location.toSetting());
    } else {
      this.#locationSetting.set('');
    }
    for (const emulationModel of SDK.TargetManager.TargetManager.instance().models(SDK.EmulationModel.EmulationModel)) {
      emulationModel.emulateLocation(this.#locationOverrideEnabled ? this.#location : null).catch(err => {
        switch (err.type) {
          case 'emulation-set-timezone': {
            this.timezoneError.textContent = err.message;
            break;
          }
          case 'emulation-set-locale': {
            this.localeError.textContent = err.message;
            break;
          }
          case 'emulation-set-accuracy': {
            this.accuracyError.textContent = err.message;
            break;
          }
        }
      });
    }
  }

  private clearFieldsetElementInputs(): void {
    this.latitudeInput.value = '0';
    this.longitudeInput.value = '0';
    this.timezoneInput.value = '';
    this.localeInput.value = '';
    this.accuracyInput.value = SDK.EmulationModel.Location.DEFAULT_ACCURACY.toString();
  }

  private createDeviceOrientationSection(): void {
    const orientationGroup = this.contentElement.createChild('section', 'sensors-group');
    orientationGroup.setAttribute('jslog', `${VisualLogging.section('device-orientation')}`);

    const orientationOffOption = {
      title: i18nString(UIStrings.off),
      orientation: NonPresetOptions.NoOverride,
      jslogContext: 'off',
    };
    const customOrientationOption = {
      title: i18nString(UIStrings.customOrientation),
      orientation: NonPresetOptions.Custom,
    };
    const orientationGroups = [{
      title: i18nString(UIStrings.presets),
      value: [
        {title: i18nString(UIStrings.portrait), orientation: '[0, 90, 0]', jslogContext: 'portrait'},
        {
          title: i18nString(UIStrings.portraitUpsideDown),
          orientation: '[180, -90, 0]',
          jslogContext: 'portrait-upside-down',
        },
        {title: i18nString(UIStrings.landscapeLeft), orientation: '[90, 0, -90]', jslogContext: 'landscape-left'},
        {title: i18nString(UIStrings.landscapeRight), orientation: '[90, -180, -90]', jslogContext: 'landscape-right'},
        {title: i18nString(UIStrings.displayUp), orientation: '[0, 0, 0]', jslogContext: 'display-up'},
        {title: i18nString(UIStrings.displayDown), orientation: '[0, -180, 0]', jslogContext: 'displayUp-down'},
      ],
    }];

    // clang-format off
    // eslint-disable-next-line @devtools/no-lit-render-outside-of-view
    render(
      html`
        <label class="sensors-group-title" for="orientation-select">${i18nString(UIStrings.orientation)}</label>
        <div class="orientation-content">
          <div class="orientation-fields">
            <select
              id="orientation-select"
              ${Directives.ref((el: Element | undefined) => {
                if (el) {
                  this.orientationSelectElement = el as HTMLSelectElement;
                }
              })}
              @change=${this.orientationSelectChanged.bind(this)}
              jslog=${VisualLogging.dropDown().track({change: true})}
            >
              <option value=${orientationOffOption.orientation} jslog=${VisualLogging.item(orientationOffOption.jslogContext)}>${orientationOffOption.title}</option>
              <option value=${customOrientationOption.orientation} jslog=${VisualLogging.item('custom')}>${customOrientationOption.title}</option>
              ${orientationGroups.map(group => html`
                <optgroup label=${group.title}>
                  ${group.value.map(preset => html`
                    <option value=${preset.orientation} jslog=${VisualLogging.item(preset.jslogContext)}>${preset.title}</option>
                  `)}
                </optgroup>
              `)}
            </select>
            <fieldset
              class="device-orientation-override-section"
              ${Directives.ref((el: Element | undefined) => {
                if (el) {
                  this.deviceOrientationFieldset = el as HTMLFieldSetElement;
                }
              })}
            >
              <div class="orientation-inputs-cell">
                <div class="orientation-axis-input-container">
                  <!-- @ts-ignore -->
                  <input
                    id="alpha-input"
                    type="number"
                    min="0"
                    max="359.9999"
                    step="any"
                    required
                    ${Directives.ref((el: Element | undefined) => { if (el) { this.alphaElement = el as HTMLInputElement; } })}
                    @change=${this.#onOrientationChange.bind(this)}
                    @keydown=${this.#onOrientationKeyDown.bind(this)}
                    @focus=${this.#onOrientationFocus.bind(this)}
                  >
                  <label for="alpha-input">${i18nString(UIStrings.alpha)}</label>
                </div>
                <div class="orientation-axis-input-container">
                  <!-- @ts-ignore -->
                  <input
                    id="beta-input"
                    type="number"
                    min="-180"
                    max="179.9999"
                    step="any"
                    required
                    ${Directives.ref((el: Element | undefined) => { if (el) { this.betaElement = el as HTMLInputElement; } })}
                    @change=${this.#onOrientationChange.bind(this)}
                    @keydown=${this.#onOrientationKeyDown.bind(this)}
                    @focus=${this.#onOrientationFocus.bind(this)}
                  >
                  <label for="beta-input">${i18nString(UIStrings.beta)}</label>
                </div>
                <div class="orientation-axis-input-container">
                  <!-- @ts-ignore -->
                  <input
                    id="gamma-input"
                    type="number"
                    min="-90"
                    max="89.9999"
                    step="any"
                    required
                    ${Directives.ref((el: Element | undefined) => { if (el) { this.gammaElement = el as HTMLInputElement; } })}
                    @change=${this.#onOrientationChange.bind(this)}
                    @keydown=${this.#onOrientationKeyDown.bind(this)}
                    @focus=${this.#onOrientationFocus.bind(this)}
                  >
                  <label for="gamma-input">${i18nString(UIStrings.gamma)}</label>
                </div>
                <devtools-button
                  .variant=${Buttons.Button.Variant.OUTLINED}
                  class="orientation-reset-button"
                  type="reset"
                  aria-label=${i18nString(UIStrings.resetDeviceOrientation)}
                  @click=${this.resetDeviceOrientation.bind(this)}
                  jslog=${VisualLogging.action('sensors.reset-device-orientiation').track({click: true})}
                >
                  ${i18nString(UIStrings.reset)}
                </devtools-button>
              </div>
            </fieldset>
          </div>
          <div
            class="orientation-stage"
            jslog=${VisualLogging.preview().track({drag: true})}
            ${Directives.ref((el: Element | undefined) => {
              if (el && !this.stageElement) {
                this.stageElement = el as HTMLElement;
                UI.UIUtils.installDragHandle(this.stageElement, this.onBoxDragStart.bind(this), event => {
                  this.onBoxDrag(event);
                }, null, '-webkit-grabbing', '-webkit-grab');
              }
            })}
          >
            <div class="orientation-layer" ${Directives.ref((el: Element | undefined) => { if (el) { this.orientationLayer = el as HTMLDivElement; } })}>
              <section
                class="orientation-box orientation-element"
              >
                <section class="orientation-front orientation-element"></section>
                <section class="orientation-top orientation-element"></section>
                <section class="orientation-back orientation-element"></section>
                <section class="orientation-left orientation-element"></section>
                <section class="orientation-right orientation-element"></section>
                <section class="orientation-bottom orientation-element"></section>
              </section>
            </div>
          </div>
        </div>
      `,
      orientationGroup
    );
    // clang-format on

    this.enableOrientationFields(true);
    this.setBoxOrientation(this.deviceOrientation, false);

    this.alphaElement.value = String(this.deviceOrientation.alpha);
    this.betaElement.value = String(this.deviceOrientation.beta);
    this.gammaElement.value = String(this.deviceOrientation.gamma);
  }

  private createPressureSection(): void {
    const container = this.contentElement.createChild('div', 'pressure-section');
    const control = SettingsUI.SettingsUI.createControlForSetting(
        Common.Settings.Settings.instance().moduleSetting('emulation.cpu-pressure'),
        i18nString(UIStrings.forcesSelectedPressureStateEmulation));

    if (control) {
      container.appendChild(control);
    }
  }

  private enableOrientationFields(disable: boolean|null): void {
    if (disable) {
      this.deviceOrientationFieldset.disabled = true;
      this.stageElement.classList.add('disabled');
      UI.Tooltip.Tooltip.install(this.stageElement, i18nString(UIStrings.enableOrientationToRotate));
    } else {
      this.deviceOrientationFieldset.disabled = false;
      this.stageElement.classList.remove('disabled');
      UI.Tooltip.Tooltip.install(this.stageElement, i18nString(UIStrings.shiftdragHorizontallyToRotate));
    }
  }

  private orientationSelectChanged(): void {
    const value = this.orientationSelectElement.options[this.orientationSelectElement.selectedIndex].value;
    this.enableOrientationFields(false);

    if (value === NonPresetOptions.NoOverride) {
      this.deviceOrientationOverrideEnabled = false;
      this.enableOrientationFields(true);
      this.applyDeviceOrientation();
    } else if (value === NonPresetOptions.Custom) {
      this.deviceOrientationOverrideEnabled = true;
      this.resetDeviceOrientation();
      this.alphaElement.focus();
    } else {
      const parsedValue = JSON.parse(value);
      this.deviceOrientationOverrideEnabled = true;
      this.deviceOrientation = new SDK.EmulationModel.DeviceOrientation(parsedValue[0], parsedValue[1], parsedValue[2]);
      this.setDeviceOrientation(this.deviceOrientation, DeviceOrientationModificationSource.SELECT_PRESET);
    }
  }

  private applyDeviceOrientation(): void {
    if (this.deviceOrientationOverrideEnabled) {
      this.deviceOrientationSetting.set(this.deviceOrientation.toSetting());
    }
    for (const emulationModel of SDK.TargetManager.TargetManager.instance().models(SDK.EmulationModel.EmulationModel)) {
      void emulationModel.emulateDeviceOrientation(
          this.deviceOrientationOverrideEnabled ? this.deviceOrientation : null);
    }
  }

  private setSelectElementLabel(selectElement: HTMLSelectElement, labelValue: string): void {
    const optionValues = Array.prototype.map.call(selectElement.options, x => x.value);
    selectElement.selectedIndex = optionValues.indexOf(labelValue);
  }

  private applyDeviceOrientationUserInput(): void {
    this.setDeviceOrientation(
        SDK.EmulationModel.DeviceOrientation.parseUserInput(
            this.alphaElement.value.trim(), this.betaElement.value.trim(), this.gammaElement.value.trim()),
        DeviceOrientationModificationSource.USER_INPUT);
    this.setSelectElementLabel(this.orientationSelectElement, NonPresetOptions.Custom);
  }

  private resetDeviceOrientation(): void {
    this.setDeviceOrientation(
        new SDK.EmulationModel.DeviceOrientation(0, 90, 0), DeviceOrientationModificationSource.RESET_BUTTON);
    this.setSelectElementLabel(this.orientationSelectElement, '[0, 90, 0]');
  }

  private setDeviceOrientation(
      deviceOrientation: SDK.EmulationModel.DeviceOrientation|null,
      modificationSource: DeviceOrientationModificationSource): void {
    if (!deviceOrientation) {
      return;
    }

    function roundAngle(angle: number): number {
      return Math.round(angle * 10000) / 10000;
    }

    if (modificationSource !== DeviceOrientationModificationSource.USER_INPUT) {
      // Even though the angles in |deviceOrientation| will not be rounded
      // here, their precision will be rounded by CSS when we change
      // |this.orientationLayer.style| in setBoxOrientation().
      this.alphaElement.value = String(roundAngle(deviceOrientation.alpha));
      this.betaElement.value = String(roundAngle(deviceOrientation.beta));
      this.gammaElement.value = String(roundAngle(deviceOrientation.gamma));
    }

    const animate = modificationSource !== DeviceOrientationModificationSource.USER_DRAG;
    this.setBoxOrientation(deviceOrientation, animate);

    this.deviceOrientation = deviceOrientation;
    this.applyDeviceOrientation();

    UI.ARIAUtils.LiveAnnouncer.alert(i18nString(
        UIStrings.deviceOrientationSetToAlphaSBeta,
        {PH1: deviceOrientation.alpha, PH2: deviceOrientation.beta, PH3: deviceOrientation.gamma}));
  }

  #onOrientationChange(event: Event): void {
    const input = event.currentTarget as HTMLInputElement;
    if (input.checkValidity()) {
      this.applyDeviceOrientationUserInput();
    }
  }

  #onOrientationKeyDown(event: KeyboardEvent): void {
    const input = event.currentTarget as HTMLInputElement;
    if (event.key === 'Enter') {
      if (input.checkValidity()) {
        this.applyDeviceOrientationUserInput();
      }
      event.preventDefault();
      return;
    }

    const value = UI.UIUtils.modifiedFloatNumber(parseFloat(input.value), event, 1);
    if (value === null) {
      return;
    }
    const prevValue = input.value;
    input.value = String(value);
    if (input.checkValidity()) {
      this.applyDeviceOrientationUserInput();
    } else {
      // If ArrowUp/ArrowDown adjusts the value out of bounds, we reset it.
      input.value = prevValue;
    }
    event.preventDefault();
  }

  #onOrientationFocus(event: Event): void {
    const input = event.currentTarget as HTMLInputElement;
    input.select();
  }

  private setBoxOrientation(deviceOrientation: SDK.EmulationModel.DeviceOrientation, animate: boolean): void {
    if (animate) {
      this.stageElement.classList.add('is-animating');
    } else {
      this.stageElement.classList.remove('is-animating');
    }

    // It is important to explain the multiple conversions happening here. A
    // few notes on coordinate spaces first:
    // 1. The CSS coordinate space is left-handed. X and Y are parallel to the
    //    screen, and Z is perpendicular to the screen. X is positive to the
    //    right, Y is positive downwards and Z increases towards the viewer.
    //    See https://drafts.csswg.org/css-transforms-2/#transform-rendering
    //    for more information.
    // 2. The Device Orientation coordinate space is right-handed. X and Y are
    //    parallel to the screen, and Z is perpenticular to the screen. X is
    //    positive to the right, Y is positive upwards and Z increases towards
    //    the viewer. See
    //    https://w3c.github.io/deviceorientation/#deviceorientation for more
    //    information.
    // 3. Additionally, the phone model we display is rotated +90 degrees in
    //    the X axis in the CSS coordinate space (i.e. when all angles are 0 we
    //    cannot see its screen in DevTools).
    //
    // |this.boxMatrix| is set in the Device Orientation coordinate space
    // because it represents the phone model we show users and also because the
    // calculations in Geometry.EulerAngles assume this coordinate space (so
    // we apply the rotations in the Z-X'-Y'' order).
    // The CSS transforms, on the other hand, are done in the CSS coordinate
    // space, so we need to convert 2) to 1) while keeping 3) in mind. We can
    // cover 3) by swapping the Y and Z axes, and 2) by inverting the X axis.
    const {alpha, beta, gamma} = deviceOrientation;
    this.boxMatrix = new DOMMatrixReadOnly().rotate(0, 0, alpha).rotate(beta, 0, 0).rotate(0, gamma, 0);
    this.orientationLayer.style.transform = `rotateY(${alpha}deg) rotateX(${- beta}deg) rotateZ(${gamma}deg)`;
  }

  private onBoxDrag(event: MouseEvent): boolean {
    const mouseMoveVector = this.calculateRadiusVector(event.x, event.y);
    if (!mouseMoveVector) {
      return true;
    }

    if (!this.mouseDownVector) {
      return true;
    }

    event.consume(true);
    let axis, angle;
    if (event.shiftKey) {
      axis = new Geometry.Vector(0, 0, 1);
      angle = (mouseMoveVector.x - this.mouseDownVector.x) * ShiftDragOrientationSpeed;
    } else {
      axis = Geometry.crossProduct(this.mouseDownVector, mouseMoveVector);
      angle = Geometry.calculateAngle(this.mouseDownVector, mouseMoveVector);
    }

    // See the comment in setBoxOrientation() for a longer explanation about
    // the CSS coordinate space, the Device Orientation coordinate space and
    // the conversions we make. |axis| and |angle| are in the CSS coordinate
    // space, while |this.originalBoxMatrix| is rotated and in the Device
    // Orientation coordinate space, which is why we swap Y and Z and invert X.
    const currentMatrix =
        new DOMMatrixReadOnly().rotateAxisAngle(-axis.x, axis.z, axis.y, angle).multiply(this.originalBoxMatrix);

    const eulerAngles = Geometry.EulerAngles.fromDeviceOrientationRotationMatrix(currentMatrix);
    const newOrientation =
        new SDK.EmulationModel.DeviceOrientation(eulerAngles.alpha, eulerAngles.beta, eulerAngles.gamma);
    this.setDeviceOrientation(newOrientation, DeviceOrientationModificationSource.USER_DRAG);
    this.setSelectElementLabel(this.orientationSelectElement, NonPresetOptions.Custom);
    return false;
  }

  private onBoxDragStart(event: MouseEvent): boolean {
    if (!this.deviceOrientationOverrideEnabled) {
      return false;
    }

    this.mouseDownVector = this.calculateRadiusVector(event.x, event.y);
    this.originalBoxMatrix = this.boxMatrix;

    if (!this.mouseDownVector) {
      return false;
    }

    event.consume(true);
    return true;
  }

  private calculateRadiusVector(x: number, y: number): Geometry.Vector|null {
    const rect = this.stageElement.getBoundingClientRect();
    const radius = Math.max(rect.width, rect.height) / 2;
    const sphereX = (x - rect.left - rect.width / 2) / radius;
    const sphereY = (y - rect.top - rect.height / 2) / radius;
    const sqrSum = sphereX * sphereX + sphereY * sphereY;
    if (sqrSum > 0.5) {
      return new Geometry.Vector(sphereX, sphereY, 0.5 / Math.sqrt(sqrSum));
    }

    return new Geometry.Vector(sphereX, sphereY, Math.sqrt(1 - sqrSum));
  }

  private appendTouchControl(): void {
    const container = this.contentElement.createChild('div', 'touch-section');
    const control = SettingsUI.SettingsUI.createControlForSetting(
        Common.Settings.Settings.instance().moduleSetting('emulation.touch'),
        i18nString(UIStrings.forcesTouchInsteadOfClick));

    if (control) {
      container.appendChild(control);
    }
  }

  private appendIdleEmulator(): void {
    const container = this.contentElement.createChild('div', 'idle-section');
    const control = SettingsUI.SettingsUI.createControlForSetting(
        Common.Settings.Settings.instance().moduleSetting('emulation.idle-detection'),
        i18nString(UIStrings.forcesSelectedIdleStateEmulation));

    if (control) {
      container.appendChild(control);
    }
  }

  private createHardwareConcurrencySection(): void {
    const container = this.contentElement.createChild('div', 'concurrency-section');

    const {checkbox, numericInput, reset, warning} =
        MobileThrottling.ThrottlingManager.throttlingManager().createHardwareConcurrencySelector();
    const div = document.createElement('div');
    div.classList.add('concurrency-details');
    div.append(numericInput.element, reset.element, warning.element);
    container.append(checkbox, div);
  }
}

export const enum DeviceOrientationModificationSource {
  USER_INPUT = 'userInput',
  USER_DRAG = 'userDrag',
  RESET_BUTTON = 'resetButton',
  SELECT_PRESET = 'selectPreset',
}

export const PressureOptions = {
  NoOverride: 'no-override',
  Nominal: 'nominal',
  Fair: 'fair',
  Serious: 'serious',
  Critical: 'critical',
};

export const NonPresetOptions = {
  NoOverride: 'noOverride',
  Custom: 'custom',
  Unavailable: 'unavailable',
};

export class ShowActionDelegate implements UI.ActionRegistration.ActionDelegate {
  handleAction(_context: UI.Context.Context, _actionId: string): boolean {
    void UI.ViewManager.ViewManager.instance().showView('sensors');
    return true;
  }
}

export const ShiftDragOrientationSpeed = 16;