const ESLintPlugin = require('eslint-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');

module.exports = (env, argv) => {
    const node_env = process.env.NODE_ENV ? process.env.NODE_ENV : 'development';
    const dev = node_env !== 'production';
    const config = {
        mode: node_env,
        devtool: dev ? 'source-map' : false,
        entry: {
            'scripts': [
                __dirname + '/src/main/assets/scripts.js'
            ]
        },
        output: {
            path: __dirname + '/src/main/resources/static',
            filename: '[name].js'
        },
        module: {
            rules: [{
                test: /\.js$/,
                exclude: [
                    /\bnode_modules\b/,
                    /\bcore-js\b/,
                    /\bwebpack\/buildin\b/
                ],
                loader: 'babel-loader'
            }]
        },
        plugins: [
            new CopyPlugin({
                patterns: [{
                    from: __dirname + '/node_modules/evil-icons/assets/sprite.svg',
                    to: __dirname + '/src/main/resources/static/'
                }],
            }),
        ],
        resolve: {
            symlinks: false,
            extensions: ['.js']
        }
    };
    if (dev) {
        config.plugins.push(new ESLintPlugin({ files: 'src/main/assets', lintDirtyModulesOnly: true, failOnWarning: false, failOnError: true, fix: false }));
    }
    config.optimization = {
        minimize: !dev
    };
    return config;
};