792d2a5b2a7f3eb59ab94cdbab327eba28545ca3
[vchess.git] / 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 const headers = {
17 "Content-Type": "application/json;charset=UTF-8",
18 "X-Requested-With": "XMLHttpRequest"
19 };
20 fetch(
21 params.serverUrl + "/variants",
22 {
23 method: "GET",
24 headers: headers
25 }
26 )
27 .then(res => res.json())
28 .then(json => {
29 if (!Array.isArray(json.variantArray)) {
30 alert("Variants loading failed: reload the page");
31 return;
32 }
33 this.state.variants = json.variantArray
34 .sort((v1,v2) => v1.name.localeCompare(v2.name));
35 });
36 let mysid = localStorage.getItem("mysid");
37 // Assign mysid only once (until next time user clear browser data)
38 if (!mysid) {
39 mysid = getRandString();
40 localStorage.setItem("mysid", mysid);
41 }
42 // Quick user setup using local storage:
43 this.state.user = {
44 id: localStorage.getItem("myid") || 0,
45 name: localStorage.getItem("myname") || "", //"" for "anonymous"
46 email: "", //unknown yet
47 notify: false, //email notifications
48 newsRead: localStorage.getItem("newsRead") || 0,
49 sid: mysid
50 };
51 // Slow verification through the server:
52 // NOTE: still superficial identity usurpation possible, but difficult.
53 fetch(
54 params.serverUrl + "/whoami",
55 {
56 method: "GET",
57 headers: headers,
58 credentials: params.credentials
59 }
60 )
61 .then(res => res.json())
62 .then(json => {
63 this.state.user.id = json.id;
64 const storedId = localStorage.getItem("myid");
65 if (json.id > 0 && !storedId)
66 // User cleared localStorage
67 localStorage.setItem("myid", json.id);
68 else if (json.id == 0 && !!storedId)
69 // User cleared cookie
70 localStorage.removeItem("myid");
71 this.state.user.name = json.name;
72 const storedName = localStorage.getItem("myname");
73 if (!!json.name && !storedName)
74 // User cleared localStorage
75 localStorage.setItem("myname", json.name);
76 else if (!json.name && !!storedName)
77 // User cleared cookie
78 localStorage.removeItem("myname");
79 this.state.user.email = json.email;
80 this.state.user.notify = json.notify;
81 if (!!json.newsRead && json.newsRead > this.state.user.newsRead)
82 this.state.user.newsRead = json.newsRead;
83 });
84 // Settings initialized with values from localStorage
85 const getItemDefaultTrue = (item) => {
86 const value = localStorage.getItem(item);
87 if (!value) return true;
88 return value == "true";
89 };
90 this.state.settings = {
91 bcolor: localStorage.getItem("bcolor") || "lichess",
92 sound: getItemDefaultTrue("sound"),
93 hints: getItemDefaultTrue("hints"),
94 highlight: getItemDefaultTrue("highlight"),
95 gotonext: getItemDefaultTrue("gotonext"),
96 randomness: parseInt(localStorage.getItem("randomness"))
97 };
98 if (isNaN(this.state.settings.randomness))
99 // Default: random asymmetric
100 this.state.settings.randomness = 2;
101 const supportedLangs = ["en", "es", "fr"];
102 const navLanguage = navigator.language.substr(0,2);
103 this.state.lang =
104 localStorage["lang"] ||
105 (supportedLangs.includes(navLanguage) ? navLanguage : "en");
106 this.setTranslations();
107 },
108 updateSetting: function(propName, value) {
109 this.state.settings[propName] = value;
110 localStorage.setItem(propName, value);
111 },
112 setTranslations: async function() {
113 // Import translations from "./translations/$lang.js"
114 const tModule = await import("@/translations/" + this.state.lang + ".js");
115 this.state.tr = tModule.translations;
116 },
117 setLanguage(lang) {
118 this.state.lang = lang;
119 this.setTranslations();
120 }
121 };