"use strict";
/**
 * The following code is modified based on
 * https://github.com/pmmmwh/react-refresh-webpack-plugin/blob/f770d3962c388da01eeda7079bff5f40c93992d2/sockets/WHMEventSource.js
 *
 * MIT Licensed
 * Author Michael Mok
 * Copyright (c) 2019 Michael Mok
 * https://github.com/pmmmwh/react-refresh-webpack-plugin/blob/f770d3962c388da01eeda7079bff5f40c93992d2/LICENSE
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.init = init;
/**
 * The hard-coded singleton key for webpack-hot-middleware's client instance.
 *
 * [Ref](https://github.com/webpack-contrib/webpack-hot-middleware/blob/cb29abb9dde435a1ac8e9b19f82d7d36b1093198/client.js#L152)
 */
const singletonKey = '__webpack_hot_middleware_reporter__';
/**
 * Initializes a socket server for HMR for webpack-hot-middleware.
 * @param {function(*): void} messageHandler A handler to consume Webpack compilation messages.
 * @returns {void}
 */
function init(messageHandler) {
    const client = window[singletonKey];
    client.useCustomOverlay({
        showProblems(type, data) {
            messageHandler({ type, data });
        },
        clear() {
            messageHandler({ type: 'ok' });
        },
    });
}