const path = require('path');
const {styles} = require('@ckeditor/ckeditor5-dev-utils');
const { CKEditorTranslationsPlugin } = require( '@ckeditor/ckeditor5-dev-translations' );
const TerserPlugin = require('terser-webpack-plugin');

module.exports = {
    devtool: 'source-map',
    performance: {hints: false},

    entry: path.resolve(__dirname, 'src', 'ckeditor.js'),

    output: {
        // The name under which the editor will be exported.
        library: 'AACKEditor',

        path: path.resolve(__dirname, 'build'),
        filename: 'ckeditor.js',
        libraryTarget: 'umd',
        libraryExport: 'default'
    },

    optimization: {
        minimizer: [
            new TerserPlugin({
                terserOptions: {
                    output: {
                        // Preserve CKEditor 5 license comments.
                        comments: /^!/
                    }
                },
                extractComments: false
            })
        ]
    },

    plugins: [
        new CKEditorTranslationsPlugin({
            // UI language. Language codes follow the https://en.wikipedia.org/wiki/ISO_639-1 format.
            // When changing the built-in language, remember to also change it in the editor's configuration (src/ckeditor.js).
            language: 'fr',
        }),
    ],

    module: {
        rules: [
            {
                test: /\.svg$/,
                use: ['raw-loader']
            },
            {
                test: /\.css$/,
                use: [
                    {
                        loader: 'style-loader',
                        options: {
                            injectType: 'singletonStyleTag',
                            attributes: {
                                'data-cke': true
                            }
                        }
                    },
                    'css-loader',
                    {
                        loader: 'postcss-loader',
                        options: {
                            postcssOptions: styles.getPostCssConfig({
                                themeImporter: {
                                    themePath: require.resolve('@ckeditor/ckeditor5-theme-lark')
                                },
                                minify: true
                            })
                        }
                    }
                ]
            },
            {
                test: /\.ts$/,
                use: [ 'ts-loader' ]
            }
        ]
    },

    resolve: {
        extensions: [ '.ts', '.js', '.json' ]
    }
};
