//@ts-check

'use strict'

const path = require('path')
const maven = require('maven')
const CopyPlugin = require('copy-webpack-plugin')
const webpack = require('webpack')

const mvnBuild = {
    apply: compiler => {
        compiler.hooks.beforeCompile.tapPromise('MavenPlugin', compilation => {
            const mvn = maven.create({ cwd: '.' })
            return mvn.execute(['package'], { skipTests: true })
        })
    },
}

const copyCluster = new CopyPlugin({
    patterns: [
        {
            from: './target/nbm/clusters/extra/',
            to: '../nbcode/enso4igv/',
        },
    ],
})
const copyLicense = new CopyPlugin({
    patterns: [
        {
            from: '../../LICENSE',
            to: '.',
        },
    ],
})

const entryExtension = {
    extension: './src/main/vscode/extension.ts', // the entry point of this extension, 📖 -> https://webpack.js.org/configuration/entry-context/
}

/**@type {import('webpack').Configuration}*/
const config = {
    target: 'node', // vscode extensions run in a Node.js-context 📖 -> https://webpack.js.org/configuration/node/

    plugins: [mvnBuild, copyCluster, copyLicense],
    entry: entryExtension,
    output: {
        // the bundle is stored in the 'dist' folder (check package.json), 📖 -> https://webpack.js.org/configuration/output/
        path: path.resolve(__dirname, 'dist'),
        filename: '[name].js',
        libraryTarget: 'commonjs2',
        devtoolModuleFilenameTemplate: '../[resource-path]',
    },
    devtool: 'source-map',
    externals: {
        vscode: 'commonjs vscode', // the vscode-module is created on-the-fly and must be excluded. Add other modules that cannot be webpack'ed, 📖 -> https://webpack.js.org/configuration/externals/
        bufferutil: 'bufferutil',
        'utf-8-validate': 'utf-8-validate',
    },
    resolve: {
        // support reading TypeScript and JavaScript files, 📖 -> https://github.com/TypeStrong/ts-loader
        extensions: ['.ts', '.js'],
        symlinks: false,
    },
    module: {
        rules: [
            {
                test: /\.ts$/,
                exclude: /node_modules/,
                include: path.resolve(__dirname, 'src'),
                use: [
                    {
                        loader: 'ts-loader',
                    },
                ],
            },
        ],
    },
}
const devConf = {
    target: 'node', // vscode extensions run in a Node.js-context 📖 -> https://webpack.js.org/configuration/node/

    plugins: [mvnBuild, copyCluster, copyLicense, new webpack.AutomaticPrefetchPlugin()],
    entry: entryExtension,
    output: {
        // the bundle is stored in the 'dist' folder (check package.json), 📖 -> https://webpack.js.org/configuration/output/
        path: path.resolve(__dirname, 'dist'),
        filename: '[name].js',
        libraryTarget: 'commonjs2',
        devtoolModuleFilenameTemplate: '../[resource-path]',
    },
    devtool: 'source-map',
    externals: {
        vscode: 'commonjs vscode', // the vscode-module is created on-the-fly and must be excluded. Add other modules that cannot be webpack'ed, 📖 -> https://webpack.js.org/configuration/externals/
        bufferutil: 'bufferutil',
        'utf-8-validate': 'utf-8-validate',
    },
    resolve: {
        // support reading TypeScript and JavaScript files, 📖 -> https://github.com/TypeStrong/ts-loader
        extensions: ['.ts', '.js'],
        symlinks: false,
        cacheWithContext: false,
    },
    module: {
        rules: [
            {
                test: /\.ts$/,
                exclude: /node_modules/,
                include: path.resolve(__dirname, 'src'),
                use: [
                    {
                        loader: 'ts-loader',
                        options: {
                            transpileOnly: true, // https://github.com/TypeStrong/ts-loader#faster-builds
                        },
                    },
                ],
            },
        ],
    },
    optimization: {
        minimize: false,
    },
    cache: {
        type: 'filesystem',
        buildDependencies: {
            // This makes all dependencies of this file - build dependencies
            config: [__filename],
            // By default webpack and loaders are build dependencies
        },
    },
}
// https://webpack.js.org/configuration/mode/#mode-none
module.exports = (env, argv) => {
    if (argv.mode === 'development') {
        return devConf
    }

    if (argv.mode === 'production') {
        return config
    }
    return config
}