/**
 * MIT License
 *
 * Copyright (c) 2020-present, Elastic NV
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

import { existsSync } from 'fs';
import { join } from 'path';

export async function getPackageManager(dir: string) {
  if (existsSync(join(dir, 'yarn.lock'))) {
    return 'yarn';
  }
  return 'npm';
}

export function runCommand(pkgManager: string, command: string) {
  if (pkgManager === 'yarn') {
    return `yarn ${command}`;
  }
  return `npm run ${command}`;
}

export function replaceTemplates(input: string, values: Record<string, any>) {
  for (const key in values) {
    const finalValue = values[key];
    input = input.replace(new RegExp(`'{{` + key + `}}'`, 'g'), () => {
      if (Array.isArray(finalValue)) {
        return String(finalValue)
          .split(',')
          .filter(Boolean)
          .map(f => `'${f}'`);
      }
      if (typeof finalValue == 'number') {
        return Number(finalValue);
      }
      if (typeof finalValue == 'string') {
        return `'${finalValue}'`;
      }
      return finalValue;
    });
  }
  return input;
}

export function cloudIDToKibanaURL(id: string) {
  const ID_SEPARATOR = ':';
  const VALUE_SEPARATOR = '$';
  // Ignore values before the separator
  const index = id.lastIndexOf(ID_SEPARATOR);
  if (index >= 0) {
    id = id.substring(index + 1);
  }

  // Decode the base64 string
  const decoded = Buffer.from(id, 'base64').toString();
  const words = decoded.split(VALUE_SEPARATOR);

  // construct the kibana and ES urls from decoded value
  const [host, port = '443'] = words[0].split(ID_SEPARATOR);
  const [kibanaId, kibanaPort = port] = words[2].split(ID_SEPARATOR);
  const kibanaURL = `https://${kibanaId}.${host}:${kibanaPort}`;

  return kibanaURL;
}