/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
/* eslint-disable no-console */
function getCustomProperties() {
  const customProperties = {};
  const parseCustomProperties = (theme) => {
    Object.keys(theme).forEach((key) => {
      if (typeof theme[key] === 'object') {
        parseCustomProperties(theme[key]);
      } else if (typeof theme[key] === 'string') {
        if (!customProperties[`--${key}`]) {
          customProperties[`--${key}`] = theme[key];
        } else {
          console.error(
            `Custom CSS property "${key}" already exists with value "${
              customProperties[`--${key}`]
            }".`
          );
          process.exit(1);
        }
      }
    });
  };
  parseCustomProperties(require('../src/main/js/app/theme'));

  return customProperties;
}

// See https://github.com/evanw/esbuild/issues/337
function importAsGlobals(mapping) {
  const escRe = (s) => s.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&');
  const filter = new RegExp(
    Object.keys(mapping)
      .map((moduleName) => `^${escRe(moduleName)}$`)
      .join('|')
  );

  return {
    name: 'import-as-globals',
    setup(build) {
      build.onResolve({ filter }, (args) => {
        if (!mapping[args.path]) {
          throw new Error('Unknown global: ' + args.path);
        }
        return {
          path: args.path,
          namespace: 'external-global',
        };
      });

      build.onLoad(
        {
          filter,
          namespace: 'external-global',
        },
        (args) => {
          const globalName = mapping[args.path];
          return {
            contents: `module.exports = ${globalName};`,
            loader: 'js',
          };
        }
      );
    },
  };
}

module.exports = {
  getCustomProperties,
  importAsGlobals,
  // NOTE: esbuild will transpile the _syntax_ down to what the TARGET_BROWSERS understand.
  // It will _not_, however, polyfill missing API methods, such as String.prototype.replaceAll
  // This is why we also import core-js.
  //
  // This browser version list is based on our requirements to support ES6
  // and javascript module via script tag (See https://caniuse.com/?search=modules%20es6)
  ESBUILD_TARGET_BROWSERS: ['chrome61', 'firefox60', 'safari11', 'edge18'],
  AUTOPREFIXER_BROWSER_LIST: ['chrome>=61', 'firefox>=60', 'safari>=11', 'edge>=18'],
};