Started code review + some fixes (unfinished)

[vchess.git] / client / src / utils / gameStorage.js

diff --git a/client/src/utils/gameStorage.js b/client/src/utils/gameStorage.js
index f995828..453388e 100644 (file)
--- a/client/src/utils/gameStorage.js
+++ b/client/src/utils/gameStorage.js
@@ -19,8 +19,7 @@
 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);
 
@@ -28,7 +27,7 @@ function dbOperation(callback)
     alert(store.state.tr["Database error:"] + " " + event.target.errorCode);
   };
 
-  DBOpenRequest.onsuccess = function(event) {
+  DBOpenRequest.onsuccess = function() {
     db = DBOpenRequest.result;
     callback(db);
     db.close();
@@ -37,28 +36,32 @@ function dbOperation(callback)
   DBOpenRequest.onupgradeneeded = function(event) {
     let db = event.target.result;
     db.onerror = function(event) {
-      alert(store.state.tr["Error while loading database:"] + " " + event.target.errorCode);
+      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
-  add: function(game, callback)
-  {
-    dbOperation((db) => {
+  add: function(game, callback) {
+    dbOperation(db => {
       let transaction = db.transaction("games", "readwrite");
-      if (callback)
-      {
+      if (callback) {
         transaction.oncomplete = function() {
           callback({}); //everything's fine
-        }
+        };
         transaction.onerror = function() {
-          callback({errmsg: store.state.tr["Game retrieval failed:"] + " " + transaction.error});
+          callback({
+            errmsg:
+              store.state.tr["Game retrieval failed:"] + " " + transaction.error
+          });
         };
       }
       let objectStore = transaction.objectStore("games");
@@ -68,98 +71,81 @@ export const GameStorage =
 
   // 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:
-          {
-            // Some fields may be undefined:
-            chat: obj.chat,
-            move: obj.move,
-            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(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];
+            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(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');
+    } //local game
+    else {
+      dbOperation(db => {
+        let objectStore = db.transaction("games").objectStore("games");
         objectStore.get(gameId).onsuccess = function(event) {
           callback(event.target.result);
-        }
+        };
       });
     }
   },
 
-  getCurrent: function(callback)
-  {
-    dbOperation((db) => {
-      let objectStore = db.transaction('games').objectStore('games');
+  getCurrent: function(callback) {
+    dbOperation(db => {
+      let objectStore = db.transaction("games").objectStore("games");
       objectStore.get("*").onsuccess = function(event) {
         callback(event.target.result);
       };
@@ -167,20 +153,21 @@ export const GameStorage =
   },
 
   // Delete a game in indexedDB
-  remove: function(gameId, callback)
-  {
-    dbOperation((db) => {
+  remove: function(gameId, callback) {
+    dbOperation(db => {
       let transaction = db.transaction(["games"], "readwrite");
-      if (callback)
-      {
+      if (callback) {
         transaction.oncomplete = function() {
           callback({}); //everything's fine
-        }
+        };
         transaction.onerror = function() {
-          callback({errmsg: store.state.tr["Game removal failed:"] + " " + transaction.error});
+          callback({
+            errmsg:
+              store.state.tr["Game removal failed:"] + " " + transaction.error
+          });
         };
       }
       transaction.objectStore("games").delete(gameId);
     });
-  },
+  }
 };