client/src/store.js

   1 // NOTE: do not use ajax() here because ajax.js require the store for translations
   2 import params from "./parameters"; //for server URL
   3 import { getRandString } from "./utils/alea";
   4
   5 // Global store: see https://medium.com/fullstackio/managing-state-in-vue-js-23a0352b1c87
   6 export const store = {
   7   state: {
   8     variants: [],
   9     tr: {},
  10     user: {},
  11     settings: {},
  12     lang: ""
  13   },
  14   socketCloseListener: null,
  15   initialize() {
  16     fetch(
  17       params.serverUrl + "/variants",
  18       {method: "GET"},
  19     )
  20     .then(res => res.json())
  21     .then(json => {
  22       this.state.variants = json.variantArray.sort(
  23         (v1,v2) => v1.name.localeCompare(v2.name));
  24     });
  25     let mysid = localStorage.getItem("mysid");
  26     // Assign mysid only once (until next time user clear browser data)
  27     if (!mysid) {
  28       mysid = getRandString();
  29       localStorage.setItem("mysid", mysid);
  30     }
  31     // Quick user setup using local storage:
  32     this.state.user = {
  33       id: localStorage.getItem("myid") || 0,
  34       name: localStorage.getItem("myname") || "", //"" for "anonymous"
  35       email: "", //unknown yet
  36       notify: false, //email notifications
  37       sid: mysid
  38     };
  39     // Slow verification through the server:
  40     // NOTE: still superficial identity usurpation possible, but difficult.
  41     fetch(
  42       params.serverUrl + "/whoami",
  43       {
  44         method: "GET",
  45         credentials: params.credentials
  46       }
  47     )
  48     .then(res => res.json())
  49     .then(json => {
  50       this.state.user.id = json.id;
  51       const storedId = localStorage.getItem("myid");
  52       if (json.id > 0 && !storedId)
  53         // User cleared localStorage
  54         localStorage.setItem("myid", json.id);
  55       else if (json.id == 0 && !!storedId)
  56         // User cleared cookie
  57         localStorage.removeItem("myid");
  58       this.state.user.name = json.name;
  59       const storedName = localStorage.getItem("myname");
  60       if (!!json.name && !storedName)
  61         // User cleared localStorage
  62         localStorage.setItem("myname", json.name);
  63       else if (!json.name && !!storedName)
  64         // User cleared cookie
  65         localStorage.removeItem("myname");
  66       this.state.user.email = json.email;
  67       this.state.user.notify = json.notify;
  68     });
  69     // Settings initialized with values from localStorage
  70     const getItemDefaultTrue = (item) => {
  71       const value = localStorage.getItem(item);
  72       if (!value) return true;
  73       return value == "true";
  74     };
  75     this.state.settings = {
  76       bcolor: localStorage.getItem("bcolor") || "lichess",
  77       sound: getItemDefaultTrue("sound"),
  78       hints: getItemDefaultTrue("hints"),
  79       highlight: getItemDefaultTrue("highlight"),
  80       gotonext: getItemDefaultTrue("gotonext"),
  81       randomness: parseInt(localStorage.getItem("randomness"))
  82     };
  83     if (isNaN(this.state.settings.randomness))
  84       // Default: random asymmetric
  85       this.state.settings.randomness = 2;
  86     const supportedLangs = ["en", "es", "fr"];
  87     const navLanguage = navigator.language.substr(0,2);
  88     this.state.lang =
  89       localStorage["lang"] ||
  90       (supportedLangs.includes(navLanguage) ? navLanguage : "en");
  91     this.setTranslations();
  92   },
  93   updateSetting: function(propName, value) {
  94     this.state.settings[propName] = value;
  95     localStorage.setItem(propName, value);
  96   },
  97   setTranslations: async function() {
  98     // Import translations from "./translations/$lang.js"
  99     const tModule = await import("@/translations/" + this.state.lang + ".js");
 100     this.state.tr = tModule.translations;
 101   },
 102   setLanguage(lang) {
 103     this.state.lang = lang;
 104     this.setTranslations();
 105   }
 106 };