/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const WebpackError = require("./errors/WebpackError");

class NoModeWarning extends WebpackError {
	constructor() {
		super();

		/** @type {string} */
		this.name = "NoModeWarning";
		this.message =
			"configuration\n" +
			"The 'mode' option has not been set, webpack will fallback to 'production' for this value.\n" +
			"Set 'mode' option to 'development' or 'production' to enable defaults for each environment.\n" +
			"You can also set it to 'none' to disable any default behavior. " +
			"Learn more: https://webpack.js.org/configuration/mode/";
	}
}

/** @typedef {import("./Compiler")} Compiler */

const PLUGIN_NAME = "WarnNoModeSetPlugin";

class WarnNoModeSetPlugin {
	/**
	 * Applies the plugin by registering its hooks on the compiler.
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {
			compilation.warnings.push(new NoModeWarning());
		});
	}
}

module.exports = WarnNoModeSetPlugin;