export const fontPlugin = (nextConfig: any = {}) => {
  return Object.assign({}, nextConfig, {
    webpack(config: any, options: any) {
      if (!options.defaultLoaders) {
        throw new Error(
          "This plugin is not compatible with Next.js versions below 5.0.0 https://err.sh/next-plugins/upgrade"
        )
      }

      config.module.rules.push({
        test: /\.(woff|woff2|eot|ttf|otf|svg)$/,
        use: [
          {
            loader: "url-loader",
            options: {
              limit: 8192,
              fallback: "file-loader",
              publicPath: "/_next/static/fonts/",
              outputPath: "static/fonts/",
              name: "[name]-[hash].[ext]"
            }
          }
        ]
      })

      if (typeof nextConfig.webpack === "function") {
        return nextConfig.webpack(config, options)
      }

      return config
    }
  })
}