client/src/store.js

   1 import { ajax } from "./utils/ajax";
   2 import { getRandString } from "./utils/alea";
   3 import params from "./parameters"; //for socket connection
   4
   5 // Global store: see https://medium.com/fullstackio/managing-state-in-vue-js-23a0352b1c87
   6 export const store =
   7 {
   8   state: {
   9     variants: [],
  10     tr: {},
  11     user: {},
  12     conn: null,
  13     settings: {},
  14     lang: "",
  15   },
  16   socketCloseListener: null,
  17   initialize(page) {
  18     ajax("/variants", "GET", res => { this.state.variants = res.variantArray; });
  19     let mysid = localStorage["mysid"];
  20     if (!mysid)
  21     {
  22       mysid = getRandString();
  23       localStorage["mysid"] = mysid; //done only once (unless user clear browser data)
  24     }
  25     // Quick user setup using local storage:
  26     this.state.user = {
  27       id: localStorage["myid"] || 0,
  28       name: localStorage["myname"] || "", //"" for "anonymous"
  29       email: "", //unknown yet
  30       notify: false, //email notifications
  31       sid: mysid,
  32     };
  33     // Slow verification through the server:
  34     // NOTE: still superficial identity usurpation possible, but difficult.
  35     ajax("/whoami", "GET", res => {
  36       this.state.user.id = res.id;
  37       this.state.user.name = res.name;
  38       this.state.user.email = res.email;
  39       this.state.user.notify = res.notify;
  40     });
  41     const supportedLangs = ["en","es","fr"];
  42     this.state.lang = localStorage["lang"] ||
  43       (supportedLangs.includes(navigator.language)
  44         ? navigator.language
  45         : "en");
  46     this.setTranslations();
  47     // Initialize connection (even if the current page doesn't need it)
  48     this.state.conn = new WebSocket(params.socketUrl + "/?sid=" + mysid +
  49       "&page=" + encodeURIComponent(page));
  50     // Settings initialized with values from localStorage
  51     this.state.settings = {
  52       bcolor: localStorage.getItem("bcolor") || "lichess",
  53       sound: parseInt(localStorage.getItem("sound")) || 1,
  54       hints: localStorage.getItem("hints") == "true",
  55       highlight: localStorage.getItem("highlight") == "true",
  56     };
  57     this.socketCloseListener = () => {
  58       // Next line may fail at first, but should retry and eventually success (TODO?)
  59       this.state.conn = new WebSocket(params.socketUrl + "/?sid=" + mysid +
  60         "&page=" + encodeURIComponent(page));
  61     };
  62     this.state.conn.onclose = this.socketCloseListener;
  63   },
  64   updateSetting: function(propName, value) {
  65     this.state.settings[propName] = value;
  66     localStorage.setItem(propName, value);
  67   },
  68   setTranslations: async function() {
  69     // Import translations from "./translations/$lang.js"
  70     const tModule = await import("@/translations/" + this.state.lang + ".js");
  71     this.state.tr = tModule.translations;
  72   },
  73   setLanguage(lang) {
  74     this.state.lang = lang;
  75     this.setTranslations();
  76   },
  77 };