/* 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/. */

import random from "../random/random.ts";

export default class colors {
  static any() {
    return random.pick([colors.rgb, colors.hsl, colors.keyword]);
  }

  static rgb() {
    let values;

    switch (random.number(4)) {
      case 0:
        // Rgb functional notation
        if (random.bool()) {
          // Ints
          values = [random.number(255), random.number(255), random.number(255)];
        } else {
          // Percents
          values = [
            `%${random.number(255)}`,
            `%${random.number(255)}`,
            `%${random.number(255)}`
          ];
        }
        return `rgba(${values.join(",")})`;
      case 1:
        // Rgba functional notation
        values = [
          random.number(255),
          random.number(255),
          random.number(255),
          random.float()
        ];
        return `rgba(${values.join(",")})`;
      case 2:
        // 4 char hex
        return `#${random.hex(4)}`;
      default:
        // 8 char hex
        return `#${random.hex(8)}`;
    }
  }

  static hsl() {
    let values, opt;

    switch (random.number(4)) {
      case 0:
        values = [
          random.number(255),
          `%${random.number(255)}`,
          `%${random.number(255)}`
        ];
        return `hsl(${values.join(",")})`;
      case 1:
        values = [
          random.number(255),
          `%${random.number(255)}`,
          `%${random.number(255)}`,
          `%${random.number(255)}`
        ];
        return `hsl(${values.join(",")})`;
      case 2:
        opt = random.pick(["deg", "rad", "grad", "turn"]);
        values = [
          random.number(255) + opt,
          `%${random.number(255)}`,
          `%${random.number(255)}`,
          `%${random.number(255)}`
        ];
        return `hsl(${values.join(",")})`;
      default:
        values = [
          random.number(255),
          `%${random.number(255)}`,
          `%${random.number(255)}`,
          random.float()
        ];
        return `hsl(${values.join(",")})`;
    }
  }

  static keyword() {
    return random.pick([
      "lime",
      "red",
      "blue",
      "invert",
      "currentColor",
      "ActiveBorder",
      "ActiveCaption",
      "AppWorkspace",
      "Background",
      "ButtonFace",
      "ButtonHighlight",
      "ButtonShadow",
      "ButtonText",
      "CaptionText",
      "GrayText",
      "Highlight",
      "HighlightText",
      "InactiveBorder",
      "InactiveCaption",
      "InactiveCaptionText",
      "InfoBackground",
      "InfoText",
      "Menu",
      "MenuText",
      "Scrollbar",
      "ThreeDDarkShadow",
      "ThreeDFace",
      "ThreeDHighlight",
      "ThreeDLightShadow",
      "ThreeDShadow",
      "Window",
      "WindowFrame",
      "WindowText",
      "-moz-ButtonDefault",
      "-moz-ButtonHoverFace",
      "-moz-ButtonHoverText",
      "-moz-CellHighlight",
      "-moz-CellHighlightText",
      "-moz-Combobox",
      "-moz-ComboboxText",
      "-moz-Dialog",
      "-moz-DialogText",
      "-moz-dragtargetzone",
      "-moz-EvenTreeRow",
      "-moz-Field",
      "-moz-FieldText",
      "-moz-html-CellHighlight",
      "-moz-html-CellHighlightText",
      "-moz-mac-accentdarkestshadow",
      "-moz-mac-accentdarkshadow",
      "-moz-mac-accentface",
      "-moz-mac-accentlightesthighlight",
      "-moz-mac-accentlightshadow",
      "-moz-mac-accentregularhighlight",
      "-moz-mac-accentregularshadow",
      "-moz-mac-chrome-active",
      "-moz-mac-chrome-inactive",
      "-moz-mac-focusring",
      "-moz-mac-menuselect",
      "-moz-mac-menushadow",
      "-moz-mac-menutextselect",
      "-moz-MenuHover",
      "-moz-MenuHoverText",
      "-moz-MenuBarText",
      "-moz-MenuBarHoverText",
      "-moz-nativehyperlinktext",
      "-moz-OddTreeRow",
      "-moz-win-communicationstext",
      "-moz-win-mediatext",
      "-moz-activehyperlinktext",
      "-moz-default-background-color",
      "-moz-default-color",
      "-moz-hyperlinktext",
      "-moz-visitedhyperlinktext"
    ]);
  }
}