// vname: string,
// fenStart: string,
// players: array of sid+id+name,
-// timeControl: string,
+// cadence: string,
// increment: integer (seconds),
-// mode: string ("live" or "corr")
-// imported: boolean (optional, default false)
+// type: string ("live" or "corr")
// // Game (dynamic) state:
// fen: string,
// moves: array of Move objects,
import { ajax } from "@/utils/ajax";
import { store } from "@/store";
-function dbOperation(callback)
-{
+function dbOperation(callback) {
let db = null;
let DBOpenRequest = window.indexedDB.open("vchess", 4);
DBOpenRequest.onerror = function(event) {
- alert(store.state.tr["Database error:"] + " " + event.target.errorCode);
+ alert(store.state.tr["Database error: stop private browsing, or update your browser"]);
+ callback("error",null);
};
- DBOpenRequest.onsuccess = function(event) {
+ DBOpenRequest.onsuccess = function() {
db = DBOpenRequest.result;
- callback(db);
+ callback(null,db);
db.close();
};
DBOpenRequest.onupgradeneeded = function(event) {
let db = event.target.result;
- db.onerror = function(event) {
- alert(store.state.tr["Error while loading database:"] + " " + event.target.errorCode);
- };
- // Create objectStore for vchess->games
let objectStore = db.createObjectStore("games", { keyPath: "id" });
objectStore.createIndex("score", "score"); //to search by game result
- }
+ };
}
-export const GameStorage =
-{
+export const GameStorage = {
// Optional callback to get error status
- // TODO: this func called from Hall seems to not work now...
- add: function(game, callback)
- {
- dbOperation((db) => {
- let transaction = db.transaction("games", "readwrite");
- if (callback)
- {
- transaction.oncomplete = function() {
- callback({}); //everything's fine
- }
- transaction.onerror = function() {
- callback({errmsg: store.state.tr["Game retrieval failed:"] + " " + transaction.error});
- };
+ add: function(game, callback) {
+ dbOperation((err,db) => {
+ if (err) {
+ callback("error");
+ return;
}
+ let transaction = db.transaction("games", "readwrite");
+ transaction.oncomplete = function() {
+ callback(); //everything's fine
+ };
let objectStore = transaction.objectStore("games");
objectStore.add(game);
});
// TODO: also option to takeback a move ?
// obj: chat, move, fen, clocks, score[Msg], initime, ...
- update: function(gameId, obj)
- {
- if (Number.isInteger(gameId) || !isNaN(parseInt(gameId)))
- {
+ update: function(gameId, obj) {
+ if (Number.isInteger(gameId) || !isNaN(parseInt(gameId))) {
// corr: only move, fen and score
- ajax(
- "/games",
- "PUT",
- {
- gid: gameId,
- newObj:
- {
- chat: obj.chat,
- move: obj.move, //may be undefined...
- fen: obj.fen,
- score: obj.score,
- scoreMsg: obj.scoreMsg,
- drawOffer: obj.drawOffer,
- }
+ ajax("/games", "PUT", {
+ gid: gameId,
+ newObj: {
+ // Some fields may be undefined:
+ chat: obj.chat,
+ move: obj.move,
+ fen: obj.fen,
+ score: obj.score,
+ scoreMsg: obj.scoreMsg,
+ drawOffer: obj.drawOffer
}
- );
- }
- else
- {
+ });
+ } else {
// live
- dbOperation((db) => {
- let objectStore = db.transaction("games", "readwrite").objectStore("games");
+ dbOperation((err,db) => {
+ let objectStore = db
+ .transaction("games", "readwrite")
+ .objectStore("games");
objectStore.get(gameId).onsuccess = function(event) {
- const game = event.target.result;
- Object.keys(obj).forEach(k => {
- if (k == "move")
- game.moves.push(obj[k]);
- else
- game[k] = obj[k];
- });
- objectStore.put(game); //save updated data
- }
+ // Ignoring error silently: shouldn't happen now. TODO?
+ if (event.target.result) {
+ const game = event.target.result;
+ Object.keys(obj).forEach(k => {
+ if (k == "move") game.moves.push(obj[k]);
+ else game[k] = obj[k];
+ });
+ objectStore.put(game); //save updated data
+ }
+ };
});
}
},
// Retrieve all local games (running, completed, imported...)
- getAll: function(callback)
- {
- dbOperation((db) => {
- let objectStore = db.transaction('games').objectStore('games');
+ getAll: function(callback) {
+ dbOperation((err,db) => {
+ let objectStore = db.transaction("games").objectStore("games");
let games = [];
objectStore.openCursor().onsuccess = function(event) {
let cursor = event.target.result;
// if there is still another cursor to go, keep running this code
- if (cursor)
- {
+ if (cursor) {
games.push(cursor.value);
cursor.continue();
- }
- else
- callback(games);
- }
+ } else callback(games);
+ };
});
},
// Retrieve any game from its identifiers (locally or on server)
// NOTE: need callback because result is obtained asynchronously
- get: function(gameId, callback)
- {
+ get: function(gameId, callback) {
// corr games identifiers are integers
- if (Number.isInteger(gameId) || !isNaN(parseInt(gameId)))
- {
- ajax("/games", "GET", {gid:gameId}, res => {
+ if (Number.isInteger(gameId) || !isNaN(parseInt(gameId))) {
+ ajax("/games", "GET", { gid: gameId }, res => {
let game = res.game;
game.moves.forEach(m => {
m.squares = JSON.parse(m.squares);
callback(game);
});
}
- else //local game
- {
- dbOperation((db) => {
- let objectStore = db.transaction('games').objectStore('games');
+ else {
+ // Local game
+ dbOperation((err,db) => {
+ let objectStore = db.transaction("games").objectStore("games");
objectStore.get(gameId).onsuccess = function(event) {
- callback(event.target.result);
- }
+ if (event.target.result)
+ callback(event.target.result);
+ };
});
}
},
- getCurrent: function(callback)
- {
- dbOperation((db) => {
- let objectStore = db.transaction('games').objectStore('games');
- objectStore.get("*").onsuccess = function(event) {
- callback(event.target.result);
- };
- });
- },
-
// Delete a game in indexedDB
- remove: function(gameId, callback)
- {
- dbOperation((db) => {
- let transaction = db.transaction(["games"], "readwrite");
- if (callback)
- {
+ remove: function(gameId, callback) {
+ dbOperation((err,db) => {
+ if (!err) {
+ let transaction = db.transaction(["games"], "readwrite");
transaction.oncomplete = function() {
callback({}); //everything's fine
- }
- transaction.onerror = function() {
- callback({errmsg: store.state.tr["Game removal failed:"] + " " + transaction.error});
};
+ transaction.objectStore("games").delete(gameId);
}
- transaction.objectStore("games").delete(gameId);
});
- },
+ }
};