/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @unrestricted
 */
export default class UserMetrics {
  /**
   * @param {string} panelName
   */
  panelShown(panelName) {
    const code = _PanelCodes[panelName] || 0;
    const size = Object.keys(_PanelCodes).length + 1;
    Host.InspectorFrontendHost.recordEnumeratedHistogram('DevTools.PanelShown', code, size);
    // Store that the user has changed the panel so we know launch histograms should not be fired.
    this._panelChangedSinceLaunch = true;
  }

  /**
   * @param {string} drawerId
   */
  drawerShown(drawerId) {
    this.panelShown('drawer-' + drawerId);
  }

  /**
   * @param {!Action} action
   */
  actionTaken(action) {
    const size = Object.keys(Action).length + 1;
    Host.InspectorFrontendHost.recordEnumeratedHistogram('DevTools.ActionTaken', action, size);
  }

  /**
   * @param {string} panelName
   * @param {string} histogramName
   * @suppressGlobalPropertiesCheck
   */
  panelLoaded(panelName, histogramName) {
    if (this._firedLaunchHistogram || panelName !== this._launchPanelName) {
      return;
    }

    this._firedLaunchHistogram = true;
    // Use rAF and setTimeout to ensure the marker is fired after layout and rendering.
    // This will give the most accurate representation of the tool being ready for a user.
    requestAnimationFrame(() => {
      setTimeout(() => {
        // Mark the load time so that we can pinpoint it more easily in a trace.
        performance.mark(histogramName);
        // If the user has switched panel before we finished loading, ignore the histogram,
        // since the launch timings will have been affected and are no longer valid.
        if (this._panelChangedSinceLaunch) {
          return;
        }
        // This fires the event for the appropriate launch histogram.
        // The duration is measured as the time elapsed since the time origin of the document.
        Host.InspectorFrontendHost.recordPerformanceHistogram(histogramName, performance.now());
      }, 0);
    });
  }

  /**
   * @param {?string} panelName
   */
  setLaunchPanel(panelName) {
    // Store the panel name that we should use for the launch histogram.
    // Other calls to panelLoaded will be ignored if the name does not match the one set here.
    this._launchPanelName = panelName;
  }
}

// Codes below are used to collect UMA histograms in the Chromium port.
// Do not change the values below, additional actions are needed on the Chromium side
// in order to add more codes.

/** @enum {number} */
export const Action = {
  WindowDocked: 1,
  WindowUndocked: 2,
  ScriptsBreakpointSet: 3,
  TimelineStarted: 4,
  ProfilesCPUProfileTaken: 5,
  ProfilesHeapProfileTaken: 6,
  // Keep key around because length of object is important. See Host.UserMetrics.actionTaken.
  'LegacyAuditsStarted-deprecated': 7,
  ConsoleEvaluated: 8,
  FileSavedInWorkspace: 9,
  DeviceModeEnabled: 10,
  AnimationsPlaybackRateChanged: 11,
  RevisionApplied: 12,
  FileSystemDirectoryContentReceived: 13,
  StyleRuleEdited: 14,
  CommandEvaluatedInConsolePanel: 15,
  DOMPropertiesExpanded: 16,
  ResizedViewInResponsiveMode: 17,
  TimelinePageReloadStarted: 18,
  ConnectToNodeJSFromFrontend: 19,
  ConnectToNodeJSDirectly: 20,
  CpuThrottlingEnabled: 21,
  CpuProfileNodeFocused: 22,
  CpuProfileNodeExcluded: 23,
  SelectFileFromFilePicker: 24,
  SelectCommandFromCommandMenu: 25,
  ChangeInspectedNodeInElementsPanel: 26,
  StyleRuleCopied: 27,
  CoverageStarted: 28,
  AuditsStarted: 29,
  AuditsFinished: 30,
  ShowedThirdPartyBadges: 31,
  AuditsViewTrace: 32,
  FilmStripStartedRecording: 33,
  CoverageReportFiltered: 34,
  CoverageStartedPerBlock: 35,
};

export const _PanelCodes = {
  elements: 1,
  resources: 2,
  network: 3,
  sources: 4,
  timeline: 5,
  heap_profiler: 6,
  // Keep key around because length of object is important. See Host.UserMetrics.panelShown.
  'legacy-audits-deprecated': 7,
  console: 8,
  layers: 9,
  'drawer-console-view': 10,
  'drawer-animations': 11,
  'drawer-network.config': 12,
  'drawer-rendering': 13,
  'drawer-sensors': 14,
  'drawer-sources.search': 15,
  security: 16,
  js_profiler: 17,
  audits: 18,
  'drawer-coverage': 19,
  'drawer-protocol-monitor': 20,
  'drawer-remote-devices': 21,
  'drawer-web-audio': 22,
  'drawer-changes.changes': 23,
  'drawer-performance.monitor': 24,
  'drawer-release-note': 25,
  'drawer-live_heap_profile': 26,
  'drawer-sources.quick': 27,
  'drawer-network.blocked-urls': 28,
};

/* Legacy exported object */
self.Host = self.Host || {};

/* Legacy exported object */
Host = Host || {};

/** @constructor */
Host.UserMetrics = UserMetrics;

/** @enum {number} */
Host.UserMetrics.Action = Action;

Host.UserMetrics._PanelCodes = _PanelCodes;

/** @type {!Host.UserMetrics} */
Host.userMetrics = new UserMetrics();