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import * as signalR from '@aspnet/signalr';
import ServerListing from './ui/server-listing.js';
/**
* Class for communication to server
*/
export default class ServerClient {
/**
* Creates new connection
* @param {string} url URL of server running signalR
* @param {string} serverListingId HTML ID of server-listing element,
* to populate with available games
* @param {BannerController} notifications Notification Manager
* @param {array} ui UI Elements to reload on login
* @param {boolean} [debug=false] Enable debug output?
*/
constructor(url, serverListingId, notifications, ui, debug = false) {
this.ui = ui;
const connectionBuilder = new signalR.HubConnectionBuilder()
.withUrl(url);
if (debug) {
connectionBuilder.configureLogging(signalR.LogLevel.Debug);
} else {
connectionBuilder.configureLogging(signalR.LogLevel.Error);
}
this.connection = connectionBuilder.build();
this.connection.start()
.then(() => this.loadServers()) // Load games list, once connected
.catch((err) => console.error(err.toString()));
// Initialize refreshing (blocks new refreshes if true)
this.refreshing = false;
this.serverListing = new ServerListing(serverListingId, notifications);
}
/**
* Requests list of avalable games on the server
*/
loadServers() {
if (this.refreshing) return; // If already refreshing, no new request
this.connection.on('ListGroups', (groups) => {
// Populate server listing
this.serverListing.flushElements();
this.serverListing.addElements(groups, this, this.ui);
this.connection.off('ListGroups');
this.refreshing = false;
});
this.connection.invoke('GetGroups')
.catch((err) => {
this.refreshing = false;
console.error(err.toString());
});
this.refreshing = true;
}
/**
* Sends a game creating request to the server
* @param {string} name Name of the new game
* @param {string} password Password
*/
createServer(name, password) {
// TODO: Create
}
/**
* Sends a login request
* @param {string} group Group name to join
* @param {string} password Password to send as SHA-256 Base64 String
* @param {string} username Display name to use
* @param {ServerClient~loginCallback} callback Callback function to use
*/
sendLogin(group, password, username, callback) {
this.connection.on('LoginResponse', (result) => {
callback(result, this.connection);
this.connection.off('LoginResponse');
});
this.connection.invoke('Login', group, username, password);
}
}
/**
* Callback to call with response to login request
* @callback ServerClient~loginCallback
* @param {number} result 0: Success, 1: PasswordError, 2:UsernameTaken,
* 3:Unknown Error
* @param {ConnectionHub} connection Connection to the server
*/
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