Fixes for corr games update + incomplete info (do not show board)
[vchess.git] / client / src / utils / gameStorage.js
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1// Game object: {
2// // Static informations:
11667c79 3// id: string
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4// vname: string,
5// fenStart: string,
6// players: array of sid+id+name,
71468011 7// cadence: string,
967a2686 8// increment: integer (seconds),
910d631b 9// type: string ("live" or "corr")
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10// // Game (dynamic) state:
11// fen: string,
12// moves: array of Move objects,
13// clocks: array of integers,
809ba2aa 14// initime: array of integers (when clock start running),
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15// score: string (several options; '*' == running),
16// }
17
602d6bef 18import { store } from "@/store";
fd7aea36 19
6808d7a1 20function dbOperation(callback) {
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21 let db = null;
22 let DBOpenRequest = window.indexedDB.open("vchess", 4);
23
24 DBOpenRequest.onerror = function(event) {
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25 alert(store.state.tr["Database error: stop private browsing, or update your browser"]);
26 callback("error",null);
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27 };
28
6808d7a1 29 DBOpenRequest.onsuccess = function() {
967a2686 30 db = DBOpenRequest.result;
8477e53d 31 callback(null,db);
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32 db.close();
33 };
34
35 DBOpenRequest.onupgradeneeded = function(event) {
36 let db = event.target.result;
11667c79 37 let objectStore = db.createObjectStore("games", { keyPath: "id" });
42c15a75 38 objectStore.createIndex("score", "score"); //to search by game result
6808d7a1 39 };
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40}
41
6808d7a1 42export const GameStorage = {
967a2686 43 // Optional callback to get error status
6808d7a1 44 add: function(game, callback) {
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45 dbOperation((err,db) => {
46 if (err) {
47 callback("error");
48 return;
967a2686 49 }
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50 let transaction = db.transaction("games", "readwrite");
51 transaction.oncomplete = function() {
52 callback(); //everything's fine
53 };
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54 let objectStore = transaction.objectStore("games");
55 objectStore.add(game);
56 });
57 },
58
dcd68c41 59 // obj: chat, move, fen, clocks, score[Msg], initime, ...
6808d7a1 60 update: function(gameId, obj) {
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61 // live
62 dbOperation((err,db) => {
63 let objectStore = db
64 .transaction("games", "readwrite")
65 .objectStore("games");
66 objectStore.get(gameId).onsuccess = function(event) {
67 // Ignoring error silently: shouldn't happen now. TODO?
68 if (event.target.result) {
69 let game = event.target.result;
70 // Hidden tabs are delayed, to prevent multi-updates:
71 if (obj.moveIdx < game.moves.length) return;
72 Object.keys(obj).forEach(k => {
73 if (k == "move") game.moves.push(obj[k]);
74 else game[k] = obj[k];
75 });
76 objectStore.put(game); //save updated data
3d55deea 77 }
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78 };
79 });
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80 },
81
fd7aea36 82 // Retrieve all local games (running, completed, imported...)
23ecf008 83 // light: do not retrieve moves or clocks (TODO: this is the only usage)
db1f1f9a 84 getAll: function(light, callback) {
8477e53d 85 dbOperation((err,db) => {
6808d7a1 86 let objectStore = db.transaction("games").objectStore("games");
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87 let games = [];
88 objectStore.openCursor().onsuccess = function(event) {
89 let cursor = event.target.result;
90 // if there is still another cursor to go, keep running this code
6808d7a1 91 if (cursor) {
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92 let g = cursor.value;
93 if (light) {
94 g.movesCount = g.moves.length;
95 delete g.moves;
96 delete g.clocks;
97 delete g.initime;
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98 }
99 games.push(g);
fd7aea36 100 cursor.continue();
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101 } else callback(games);
102 };
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103 });
104 },
105
106 // Retrieve any game from its identifiers (locally or on server)
107 // NOTE: need callback because result is obtained asynchronously
6808d7a1 108 get: function(gameId, callback) {
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109 // Local game
110 dbOperation((err,db) => {
111 let objectStore = db.transaction("games").objectStore("games");
112 objectStore.get(gameId).onsuccess = function(event) {
113 if (event.target.result)
114 callback(event.target.result);
115 };
116 });
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117 },
118
119 // Delete a game in indexedDB
6808d7a1 120 remove: function(gameId, callback) {
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121 dbOperation((err,db) => {
122 if (!err) {
123 let transaction = db.transaction(["games"], "readwrite");
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124 transaction.oncomplete = function() {
125 callback({}); //everything's fine
6808d7a1 126 };
8477e53d 127 transaction.objectStore("games").delete(gameId);
967a2686 128 }
967a2686 129 });
6808d7a1 130 }
967a2686 131};