import autoprefixer from 'autoprefixer';
import findUp from 'find-up';
import path from 'path';
import { logger } from '@storybook/node-logger';

export async function createDefaultWebpackConfig(storybookBaseConfig, options) {
  if (
    options.presetsList.some((preset) =>
      /@storybook(\/|\\)preset-create-react-app/.test(preset.name || preset)
    )
  ) {
    return storybookBaseConfig;
  }

  const postcssConfigFiles = [
    '.postcssrc',
    '.postcssrc.json',
    '.postcssrc.yml',
    '.postcssrc.js',
    'postcss.config.js',
  ];
  const customPostcssConfig = await findUp(postcssConfigFiles);

  let postcssOptions = {};
  if (customPostcssConfig) {
    logger.info(`=> Using custom ${path.basename(customPostcssConfig)}`);
    postcssOptions = {
      config: {
        path: path.dirname(customPostcssConfig),
      },
    };
  } else {
    postcssOptions = {
      ident: 'postcss',
      postcss: {},
      plugins: () => [
        require('postcss-flexbugs-fixes'), // eslint-disable-line global-require
        autoprefixer({
          flexbox: 'no-2009',
        }),
      ],
    };
  }

  return {
    ...storybookBaseConfig,
    module: {
      ...storybookBaseConfig.module,
      rules: [
        ...storybookBaseConfig.module.rules,
        {
          test: /\.css$/,
          sideEffects: true,
          use: [
            require.resolve('style-loader'),
            {
              loader: require.resolve('css-loader'),
              options: {
                importLoaders: 1,
              },
            },
            {
              loader: require.resolve('postcss-loader'),
              options: postcssOptions,
            },
          ],
        },
        {
          test: /\.(svg|ico|jpg|jpeg|png|apng|gif|eot|otf|webp|ttf|woff|woff2|cur|ani|pdf)(\?.*)?$/,
          loader: require.resolve('file-loader'),
          options: {
            name: 'static/media/[name].[hash:8].[ext]',
            esModule: false,
          },
        },
        {
          test: /\.(mp4|webm|wav|mp3|m4a|aac|oga)(\?.*)?$/,
          loader: require.resolve('url-loader'),
          query: {
            limit: 10000,
            name: 'static/media/[name].[hash:8].[ext]',
          },
        },
      ],
    },
  };
}
