import 'webpack-dev-server';
import path from 'path';

import HtmlWebpackPlugin from 'html-webpack-plugin';
import webpack from 'webpack';
import { merge } from 'webpack-merge';

import checkNodeEnv from '../scripts/check-node-env';
import baseConfig from './webpack.config.base';
import webpackPaths from './webpack.paths';

const { version } = require('../../package.json');

// When an ESLint server is running, we can't set the NODE_ENV so we'll check if it's
// at the dev webpack config is not accidentally run in a production environment
if (process.env.NODE_ENV === 'production') {
    checkNodeEnv('development');
}

const configuration: webpack.Configuration = {
    devtool: 'inline-source-map',

    mode: 'development',

    target: ['web'],

    entry: {
        remote: path.join(webpackPaths.srcRemotePath, 'index.tsx'),
        worker: path.join(webpackPaths.srcRemotePath, 'service-worker.ts'),
    },

    output: {
        path: webpackPaths.dllPath,
        publicPath: '/',
        filename: '[name].js',
        library: {
            type: 'umd',
        },
    },

    module: {
        rules: [
            {
                test: /\.s?css$/,
                use: [
                    'style-loader',
                    {
                        loader: 'css-loader',
                        options: {
                            modules: true,
                            sourceMap: true,
                            importLoaders: 1,
                        },
                    },
                    'sass-loader',
                ],
                include: /\.module\.s?(c|a)ss$/,
            },
            {
                test: /\.s?css$/,
                use: ['style-loader', 'css-loader', 'sass-loader'],
                exclude: /\.module\.s?(c|a)ss$/,
            },
            // Fonts
            {
                test: /\.(woff|woff2|eot|ttf|otf)$/i,
                type: 'asset/resource',
            },
            // Images
            {
                test: /\.(png|svg|jpg|jpeg|gif)$/i,
                type: 'asset/resource',
            },
        ],
    },
    plugins: [
        new webpack.NoEmitOnErrorsPlugin(),

        /**
         * Create global constants which can be configured at compile time.
         *
         * Useful for allowing different behaviour between development builds and
         * release builds
         *
         * NODE_ENV should be production so that modules do not perform certain
         * development checks
         *
         * By default, use 'development' as NODE_ENV. This can be overriden with
         * 'staging', for example, by changing the ENV variables in the npm scripts
         */
        new webpack.EnvironmentPlugin({
            NODE_ENV: 'development',
        }),

        new webpack.LoaderOptionsPlugin({
            debug: true,
        }),

        new HtmlWebpackPlugin({
            filename: path.join('index.html'),
            template: path.join(webpackPaths.srcRemotePath, 'index.ejs'),
            favicon: path.join(webpackPaths.assetsPath, 'icons', 'favicon.ico'),
            minify: {
                collapseWhitespace: true,
                removeAttributeQuotes: true,
                removeComments: true,
            },
            isBrowser: true,
            env: process.env.NODE_ENV,
            isDevelopment: process.env.NODE_ENV !== 'production',
            nodeModules: webpackPaths.appNodeModulesPath,
            templateParameters: {
                version,
                prod: false,
            },
        }),
    ],

    node: {
        __dirname: false,
        __filename: false,
    },

    watch: true,
};

export default merge(baseConfig, configuration);