client/src/utils/storage.js

   1 // TODO: general methods to access/retrieve from storage, to be generalized
   2 // https://developer.mozilla.org/fr/docs/Web/API/API_IndexedDB
   3 // https://dexie.org/
   4
   5 export const GameStorage =
   6 {
   7   init: function(myid, oppid, gameId, variant, mycolor, fenStart)
   8   {
   9     localStorage.setItem("myid", myid);
  10     localStorage.setItem("gameId", gameId);
  11     localStorage.setItem("vname", variant);
  12     localStorage.setItem("mycolor", mycolor);
  13     localStorage.setItem("fenStart", fenStart);
  14     localStorage.setItem("moves", []);
  15   },
  16
  17   // TODO: also option to takeback a move ?
  18   update: function(move)
  19   {
  20     let moves = JSON.parse(localStorage.getItem("moves"));
  21     moves.push(move);
  22     localStorage.setItem("moves", JSON.stringify(moves));
  23   },
  24
  25   // "computer mode" clearing is done through the menu
  26   clear: function()
  27   {
  28     // TODO: refresh, and implement "transfert" function (to indexedDB)
  29     delete localStorage["myid"];
  30     delete localStorage["oppid"];
  31     delete localStorage["gameId"];
  32     delete localStorage["variant"];
  33     delete localStorage["mycolor"];
  34     delete localStorage["fenStart"];
  35     delete localStorage["moves"];
  36   },
  37
  38   get: function(gameRef)
  39   {
  40     const gid = gameRef.id;
  41     const rid = gameRef.rid; //may be blank
  42     let game = {};
  43     if (localStorage.getItem("gameId") === gid)
  44     {
  45       // Retrieve running game from localStorage
  46       game.score = localStorage.getItem("score");
  47       game.mycolor = localStorage.getItem("mycolor");
  48       game.fenStart = localStorage.getItem("fenStart");
  49       game.fen = localStorage.getItem("fen");
  50       game.moves = JSON.parse(localStorage.getItem("moves"));
  51       game.players = JSON.parse(localStorage.getItem("players"));
  52       game.started = JSON.parse(localStorage.getItem("started"));
  53       game.clocks = JSON.parse(localStorage.getItem("clocks"));
  54       game.timeControl = localStorage.getItem("timeControl");
  55       game.increment = localStorage.getItem("increment");
  56       game.mode = "live";
  57     }
  58     else
  59     {
  60       // Find the game in indexedDB, on server or remotely: TODO
  61     }
  62     return game;
  63   },
  64 };