const webpack = require("webpack");
const path = require("path");

const CircularDependencyPlugin = require("circular-dependency-plugin");

const isProduction = process.env.NODE_ENV === "production";
const isMock = process.env.NODE_ENV === "mock";

const config = {
	entry: {
		cockpit: "./src/cockpit.js",
		"mass-graduation": "./src/mass-graduation.js",
		"admin-tools": "./src/admin-tools.js",
		coaching: "./src/coaching.js",
	},
	output: {
		path: path.resolve(__dirname, "dist"),
	},
	module: {
		rules: [
			{
				test: /\.(js|ts)$/,
				exclude: /node_modules/,
				use: {
					loader: "babel-loader",
					options: {
						presets: ["@babel/preset-env", "@babel/preset-typescript"],
					},
				},
			},
			{
				test: /\.png/,
				type: "asset/inline",
			},
		],
	},
	plugins: [
		new webpack.NormalModuleReplacementPlugin(/-ENV.(js|ts)/, (resource) => {
			resource.request = resource.request.replace(/-ENV/, `-${isMock ? "mock" : "prod"}`);

			if (resource.createData) {
				resource.createData.request = resource.request;
			}
		}),
		new CircularDependencyPlugin({
			// exclude detection of files based on a RegExp
			exclude: /node_modules/,
			// add errors to webpack instead of warnings
			failOnError: true,
			// allow import cycles that include an asyncronous import,
			// e.g. via import(/* webpackMode: "weak" */ './file.js')
			allowAsyncCycles: false,
			// set the current working directory for displaying module paths
			cwd: process.cwd(),
		}),
	],
};

module.exports = () => {
	if (isProduction) {
		config.mode = "production";
	} else {
		config.mode = "development";
	}
	return config;
};