/*
 * Copyright OpenSearch Contributors
 * SPDX-License-Identifier: Apache-2.0
 */

/**
 * The purpose of this file is to centralize theme configuration so it can be used across server,
 * client, and dev tooling. DO NOT add dependencies that wouldn't operate in all of these contexts.
 *
 * Default theme is specified in the uiSettings schema.
 * A version (key) and color-scheme mode cannot contain a backtick character.
 */

const THEME_MODES = ['light', 'dark'];
const THEME_VERSION_LABEL_MAP = {
  v7: 'v7',
  v8: 'Next (preview)',
  v9: 'v9 (preview)',
};
const THEME_VERSION_VALUE_MAP = {
  // allow version lookup by label ...
  ...Object.fromEntries(Object.entries(THEME_VERSION_LABEL_MAP).map((a) => a.reverse())),
  // ... or by the version itself
  ...Object.fromEntries(Object.keys(THEME_VERSION_LABEL_MAP).map((v) => [v, v])),
};
const THEME_VERSIONS = Object.keys(THEME_VERSION_LABEL_MAP);
const THEME_TAGS = [];

const themeTagDetailMap = new Map();
THEME_VERSIONS.forEach((version) => {
  THEME_MODES.forEach((mode) => {
    const key = `${version}${mode}`;

    themeTagDetailMap.set(key, { version, mode });
    THEME_TAGS.push(key);
  });
});

exports.themeVersionLabelMap = THEME_VERSION_LABEL_MAP;

exports.themeVersionValueMap = THEME_VERSION_VALUE_MAP;

exports.themeTags = THEME_TAGS;

exports.themeTagDetailMap = themeTagDetailMap;

exports.themeCssDistFilenames = THEME_VERSIONS.reduce((map, v) => {
  map[v] = THEME_MODES.reduce((acc, m) => {
    acc[m] = `osd-ui-shared-deps.${v}.${m}.css`;
    return acc;
  }, {});
  return map;
}, {});

exports.kuiCssDistFilenames = {
  v7: { dark: 'kui_dark.css', light: 'kui_light.css' },
  v8: { dark: 'kui_next_dark.css', light: 'kui_next_light.css' },
  v9: { dark: 'kui_v9_dark.css', light: 'kui_v9_light.css' },
};