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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 { SyncHook } = require("tapable");
const isValidExternalsType = require("../../schemas/plugins/container/ExternalsType.check");
const Compilation = require("../Compilation");
const SharePlugin = require("../sharing/SharePlugin");
const ContainerPlugin = require("./ContainerPlugin");
const ContainerReferencePlugin = require("./ContainerReferencePlugin");
const HoistContainerReferences = require("./HoistContainerReferencesPlugin");
 
/** @typedef {import("../../declarations/plugins/container/ModuleFederationPlugin").ExternalsType} ExternalsType */
/** @typedef {import("../../declarations/plugins/container/ModuleFederationPlugin").ModuleFederationPluginOptions} ModuleFederationPluginOptions */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../Dependency")} Dependency */
 
/**
 * Defines the compilation hooks type used by this module.
 * @typedef {object} CompilationHooks
 * @property {SyncHook<Dependency>} addContainerEntryDependency
 * @property {SyncHook<Dependency>} addFederationRuntimeDependency
 */
 
/** @type {WeakMap<Compilation, CompilationHooks>} */
const compilationHooksMap = new WeakMap();
const PLUGIN_NAME = "ModuleFederationPlugin";
 
class ModuleFederationPlugin {
    /**
     * Creates an instance of ModuleFederationPlugin.
     * @param {ModuleFederationPluginOptions} options options
     */
    constructor(options) {
        /** @type {ModuleFederationPluginOptions} */
        this.options = options;
    }
 
    /**
     * Get the compilation hooks associated with this plugin.
     * @param {Compilation} compilation The compilation instance.
     * @returns {CompilationHooks} The hooks for the compilation.
     */
    static getCompilationHooks(compilation) {
        if (!(compilation instanceof Compilation)) {
            throw new TypeError(
                "The 'compilation' argument must be an instance of Compilation"
            );
        }
        let hooks = compilationHooksMap.get(compilation);
        if (!hooks) {
            hooks = {
                addContainerEntryDependency: new SyncHook(["dependency"]),
                addFederationRuntimeDependency: new SyncHook(["dependency"])
            };
            compilationHooksMap.set(compilation, hooks);
        }
        return hooks;
    }
 
    /**
     * Applies the plugin by registering its hooks on the compiler.
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.validate.tap(PLUGIN_NAME, () => {
            compiler.validate(
                () =>
                    require("../../schemas/plugins/container/ModuleFederationPlugin.json"),
                this.options,
                {
                    name: "Module Federation Plugin",
                    baseDataPath: "options"
                },
                (options) =>
                    require("../../schemas/plugins/container/ModuleFederationPlugin.check")(
                        options
                    )
            );
        });
        const { 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(PLUGIN_NAME, () => {
            if (
                options.exposes &&
                (Array.isArray(options.exposes)
                    ? options.exposes.length > 0
                    : Object.keys(options.exposes).length > 0)
            ) {
                new ContainerPlugin({
                    name: /** @type {string} */ (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);
            }
            new HoistContainerReferences().apply(compiler);
        });
    }
}
 
module.exports = ModuleFederationPlugin;