/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

var EXPORTED_SYMBOLS = ["ThemeVariableMap", "ThemeContentPropertyList"];

const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");

const ThemeVariableMap = [
  [
    "--lwt-accent-color-inactive",
    {
      lwtProperty: "accentcolorInactive",
    },
  ],
  [
    "--lwt-background-alignment",
    {
      isColor: false,
      lwtProperty: "backgroundsAlignment",
    },
  ],
  [
    "--lwt-background-tiling",
    {
      isColor: false,
      lwtProperty: "backgroundsTiling",
    },
  ],
  [
    "--tab-loading-fill",
    {
      lwtProperty: "tab_loading",
      optionalElementID: "tabbrowser-tabs",
    },
  ],
  [
    "--lwt-tab-text",
    {
      lwtProperty: "tab_text",
    },
  ],
  [
    "--tab-line-color",
    {
      lwtProperty: "tab_line",
      optionalElementID: "tabbrowser-tabs",
    },
  ],
  [
    "--lwt-background-tab-separator-color",
    {
      lwtProperty: "tab_background_separator",
    },
  ],
  [
    "--toolbar-bgcolor",
    {
      lwtProperty: "toolbarColor",
      processColor(rgbaChannels, element) {
        if (!rgbaChannels) {
          Services.prefs.setIntPref("browser.theme.toolbar-theme", 2);
          return null;
        }
        const { r, g, b, a } = rgbaChannels;
        Services.prefs.setIntPref(
          "browser.theme.toolbar-theme",
          _isColorDark(r, g, b) ? 0 : 1
        );
        return `rgba(${r}, ${g}, ${b}, ${a})`;
      },
    },
  ],
  [
    "--toolbar-color",
    {
      lwtProperty: "toolbar_text",
    },
  ],
  [
    "--tabs-border-color",
    {
      lwtProperty: "toolbar_top_separator",
      optionalElementID: "navigator-toolbox",
    },
  ],
  [
    "--toolbarseparator-color",
    {
      lwtProperty: "toolbar_vertical_separator",
    },
  ],
  [
    "--chrome-content-separator-color",
    {
      lwtProperty: "toolbar_bottom_separator",
    },
  ],
  [
    "--toolbarbutton-icon-fill",
    {
      lwtProperty: "icon_color",
    },
  ],
  [
    "--lwt-toolbarbutton-icon-fill-attention",
    {
      lwtProperty: "icon_attention_color",
    },
  ],
  [
    "--toolbarbutton-hover-background",
    {
      lwtProperty: "button_background_hover",
    },
  ],
  [
    "--toolbarbutton-active-background",
    {
      lwtProperty: "button_background_active",
    },
  ],
  [
    "--lwt-selected-tab-background-color",
    {
      lwtProperty: "tab_selected",
    },
  ],
  [
    "--autocomplete-popup-background",
    {
      lwtProperty: "popup",
    },
  ],
  [
    "--autocomplete-popup-color",
    {
      lwtProperty: "popup_text",
    },
  ],
  [
    "--autocomplete-popup-highlight-background",
    {
      lwtProperty: "popup_highlight",
    },
  ],
  [
    "--autocomplete-popup-highlight-color",
    {
      lwtProperty: "popup_highlight_text",
    },
  ],
  [
    "--sidebar-background-color",
    {
      lwtProperty: "sidebar",
      optionalElementID: "sidebar-box",
      processColor(rgbaChannels, element) {
        if (!rgbaChannels) {
          element.removeAttribute("lwt-sidebar");
          return null;
        }
        const { r, g, b } = rgbaChannels;
        element.setAttribute("lwt-sidebar", "true");
        // Drop alpha channel
        return `rgb(${r}, ${g}, ${b})`;
      },
    },
  ],
  [
    "--sidebar-text-color",
    {
      lwtProperty: "sidebar_text",
      optionalElementID: "sidebar-box",
    },
  ],
  [
    "--sidebar-border-color",
    {
      lwtProperty: "sidebar_border",
      optionalElementID: "browser",
    },
  ],
];

const ThemeContentPropertyList = [
  "ntp_background",
  "ntp_text",
  "sidebar",
  "sidebar_highlight",
  "sidebar_highlight_text",
  "sidebar_text",
];

// This is copied from LightweightThemeConsumer.jsm.
function _isColorDark(r, g, b) {
  return 0.2125 * r + 0.7154 * g + 0.0721 * b <= 127;
}