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Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

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

"use strict";

const isValidExternalsType = require("../../schemas/plugins/container/ExternalsType.check.js");
const SharePlugin = require("../sharing/SharePlugin");
const createSchemaValidation = require("../util/create-schema-validation");
const ContainerPlugin = require("./ContainerPlugin");
const ContainerReferencePlugin = require("./ContainerReferencePlugin");

/** @typedef {import("../../declarations/plugins/container/ModuleFederationPlugin").ExternalsType} ExternalsType */
/** @typedef {import("../../declarations/plugins/container/ModuleFederationPlugin").ModuleFederationPluginOptions} ModuleFederationPluginOptions */
/** @typedef {import("../../declarations/plugins/container/ModuleFederationPlugin").Shared} Shared */
/** @typedef {import("../Compiler")} Compiler */

const validate = createSchemaValidation(
	require("../../schemas/plugins/container/ModuleFederationPlugin.check.js"),
	() => require("../../schemas/plugins/container/ModuleFederationPlugin.json"),
	{
		name: "Module Federation Plugin",
		baseDataPath: "options"
	}
);
class ModuleFederationPlugin {
	/**
	 * @param {ModuleFederationPluginOptions} options options
	 */
	constructor(options) {
		validate(options);

		this._options = options;
	}

	/**
	 * Apply the plugin
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		const { _options: options } = this;
		const library = options.library || { type: "var", name: options.name };
		const remoteType =
			options.remoteType ||
			(options.library && isValidExternalsType(options.library.type)
				? /** @type {ExternalsType} */ (options.library.type)
				: "script");
		if (
			library &&
			!compiler.options.output.enabledLibraryTypes.includes(library.type)
		) {
			compiler.options.output.enabledLibraryTypes.push(library.type);
		}
		compiler.hooks.afterPlugins.tap("ModuleFederationPlugin", () => {
			if (
				options.exposes &&
				(Array.isArray(options.exposes)
					? options.exposes.length > 0
					: Object.keys(options.exposes).length > 0)
			) {
				new ContainerPlugin({
					name: options.name,
					library,
					filename: options.filename,
					runtime: options.runtime,
					shareScope: options.shareScope,
					exposes: options.exposes
				}).apply(compiler);
			}
			if (
				options.remotes &&
				(Array.isArray(options.remotes)
					? options.remotes.length > 0
					: Object.keys(options.remotes).length > 0)
			) {
				new ContainerReferencePlugin({
					remoteType,
					shareScope: options.shareScope,
					remotes: options.remotes
				}).apply(compiler);
			}
			if (options.shared) {
				new SharePlugin({
					shared: options.shared,
					shareScope: options.shareScope
				}).apply(compiler);
			}
		});
	}
}

module.exports = ModuleFederationPlugin;