/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import os from 'node:os';
import path from 'node:path';

import type { FullConfig } from './config.js';

export function cacheDir() {
  let cacheDirectory: string;
  if (process.platform === 'linux')
    cacheDirectory = process.env.XDG_CACHE_HOME || path.join(os.homedir(), '.cache');
  else if (process.platform === 'darwin')
    cacheDirectory = path.join(os.homedir(), 'Library', 'Caches');
  else if (process.platform === 'win32')
    cacheDirectory = process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local');
  else
    throw new Error('Unsupported platform: ' + process.platform);
  return path.join(cacheDirectory, 'ms-playwright');
}

export async function userDataDir(browserConfig: FullConfig['browser']) {
  return path.join(cacheDir(), 'ms-playwright', `mcp-${browserConfig.launchOptions?.channel ?? browserConfig?.browserName}-profile`);
}