convert client over to the new REST API

css/chess.css

@@ -361,10 +361,6 @@ button:disabled .silhouette {
    z-index: 1;
 }
 
-#cb_peers {
-   color: #cccccc;
-}
-
 .badges {
    position: fixed;
    bottom: 12px;

index.html

@@ -242,7 +242,6 @@
 							and the joined piece from the capturing side moves to a new location from its original position as with any other capture.</p>
 							<p>Pawns are promoted when they reach the final row on the opposite side of the board, even if they were moved there by the other player as part of a joined pair.</p>
 						</details>
-						<p id="cb_peers"></p>
 					</div>
 				</div>
 			</div>

js/pacosako_io.js

@@ -0,0 +1,310 @@
+'use strict';
+
+const API_BASE = `https://jessemcdonald.info/pacosako/api`;
+
+const SHORT_TIMEOUT = 5000/*ms*/;
+const LONG_TIMEOUT = 90000/*ms*/;
+
+const RETRIES = 3;
+const RETRY_DELAY = 1000/*ms*/;
+
+const games = {};
+
+const meta = {
+   games: {},
+   lastModified: 0,
+   listeners: {},
+   nextId: 1,
+   currentRequest: null,
+};
+
+/* One-time request, no caching or polling */
+function getGameState(gameId, retries) {
+   if (arguments.length < 2) {
+      retries = RETRIES;
+   }
+   return new Promise((resolve, reject) => {
+      $.ajax({
+         dataType: 'json',
+         contentType: 'application/json',
+         url: `${API_BASE}/game/${gameId}`,
+         cache: false,
+         timeout: SHORT_TIMEOUT,
+      }).done((data, textStatus, jqXHR) => {
+         resolve(data);
+      }).fail((jqXHR, textStatus, errorThrown) => {
+         if ((!jqXHR.status || jqXHR.status < 400 || jqXHR.status > 499) && retries > 0) {
+            setTimeout(() => {
+               getGameState(gameId, retries - 1).then(resolve, reject);
+            }, RETRY_DELAY);
+         } else {
+            reject({ status: jqXHR.status, textStatus, errorThrown });
+         }
+      });
+   });
+}
+
+/* One-time request, no caching or polling */
+function getGameMeta(gameId, retries) {
+   if (arguments.length < 2) {
+      retries = RETRIES;
+   }
+   return new Promise((resolve, reject) => {
+      $.ajax({
+         dataType: 'json',
+         contentType: 'application/json',
+         url: `${API_BASE}/meta/${gameId}`,
+         cache: false,
+         timeout: SHORT_TIMEOUT,
+      }).done((data, textStatus, jqXHR) => {
+         resolve(data);
+      }).fail((jqXHR, textStatus, errorThrown) => {
+         if ((!jqXHR.status || jqXHR.status < 400 || jqXHR.status > 499) && retries > 0) {
+            setTimeout(() => {
+               getGameState(gameId, retries - 1).then(resolve, reject);
+            }, RETRY_DELAY);
+         } else {
+            reject({ status: jqXHR.status, textStatus, errorThrown });
+         }
+      });
+   });
+}
+
+function onGameUpdate(gameId, callback) {
+   const game = gamePollState(gameId);
+
+   if (Object.keys(game.listeners).length === 0) {
+      startGamePoll(gameId, game.data.modified);
+   }
+
+   const cbId = game.nextId;
+   game.nextId += 1;
+   game.listeners[cbId] = callback;
+
+   /* delay the initial run of the callback to the microtask queue */
+   (Promise.resolve()).then(() => {
+      if (cbId in game.listeners) {
+         try {
+            callback(game.data, gameId);
+         } catch(err) {
+            console.error('uncaught exception in callback', err);
+         }
+      }
+   });
+
+   return function clearGameUpdate(keepPolling) {
+      if (cbId in game.listeners) {
+         delete game.listeners[cbId];
+         if (!keepPolling && Object.keys(game.listeners).length === 0) {
+            stopGamePoll(gameId);
+         }
+      }
+   }
+}
+
+function onMetaUpdate(callback) {
+   if (Object.keys(meta.listeners).length === 0) {
+      startMetaPoll(meta.lastModified);
+   }
+
+   const cbId = meta.nextId;
+   meta.nextId += 1;
+   meta.listeners[cbId] = callback;
+
+   /* delay the initial run of the callback to the microtask queue */
+   (Promise.resolve()).then(() => {
+      if (cbId in meta.listeners) {
+         for (const gameId in meta.games) {
+            try {
+               callback(meta.games[gameId], gameId);
+            } catch(err) {
+               console.error('uncaught exception in callback', err);
+            }
+         }
+      }
+   });
+
+   return function clearMetaUpdate(keepPolling) {
+      if (cbId in meta.listeners) {
+         delete meta.listeners[cbId];
+         if (!keepPolling && Object.keys(meta.listeners).length === 0) {
+            stopMetaPoll();
+         }
+      }
+   }
+}
+
+function sendUpdate(gameId, data, retries) {
+   if (arguments.length < 3) {
+      retries = RETRIES;
+   }
+   return new Promise((resolve, reject) => {
+      $.ajax({
+         dataType: 'json',
+         contentType: 'application/json',
+         url: `${API_BASE}/game/${gameId}`,
+         method: 'POST',
+         cache: false,
+         data: JSON.stringify(data),
+         timeout: SHORT_TIMEOUT,
+      }).done((responseData, textStatus, jqXHR) => {
+         resolve({ status: jqXHR.status, data: responseData });
+      }).fail((jqXHR, textStatus, errorThrown) => {
+         if ((!jqXHR.status || jqXHR.status < 400 || jqXHR.status > 499) && retries > 0) {
+            setTimeout(() => {
+               getGameState(gameId, retries - 1).then(resolve, reject);
+            }, RETRY_DELAY);
+         } else {
+            reject({ status: jqXHR.status, textStatus, errorThrown });
+         }
+      });
+   });
+}
+
+function gamePollState(gameId) {
+   if (gameId in games === false) {
+      games[gameId] = {
+         currentRequest: null,
+         data: { gameId, modified: 0 },
+         listeners: [],
+         nextId: 1,
+      };
+   }
+
+   return games[gameId];
+}
+
+function processGame(gameId, data) {
+   const game = gamePollState(gameId);
+
+   if (data && data.modified > game.data.modified) {
+      game.data = data;
+      for (const cbId in game.listeners) {
+         try {
+            game.listeners[cbId](data, gameId);
+         } catch(err) {
+            console.error('uncaught exception in callback', err);
+         }
+      }
+   }
+}
+
+function startGamePoll(gameId, afterTime) {
+   const game = gamePollState(gameId);
+
+   if (game.currentRequest === null) {
+      if (afterTime === undefined) {
+         afterTime = game.data.modified;
+      }
+
+      const thisRequest = game.currentRequest = $.ajax({
+         dataType: 'json',
+         contentType: 'application/json',
+         url: `${API_BASE}/game/${gameId}/poll/${afterTime}`,
+         cache: false,
+         timeout: LONG_TIMEOUT,
+      }).done((data, textStatus, jqXHR) => {
+         if (game.currentRequest === thisRequest) {
+            game.currentRequest = null;
+            if (jqXHR.status == 204) {
+               startGamePoll(gameId, afterTime);
+            } else {
+               processGame(gameId, data);
+               startGamePoll(gameId, data.modified);
+            }
+         }
+      }).fail((jqXHR, textStatus, errorThrown) => {
+         if (game.currentRequest === thisRequest) {
+            setTimeout(() => {
+               if (game.currentRequest === thisRequest) {
+                  game.currentRequest = null;
+                  startGamePoll(gameId, 0);
+               }
+            }, RETRY_DELAY);
+         }
+      });
+   }
+}
+
+function stopGamePoll(gameId) {
+   if (gameId in games === false) {
+      return;
+   }
+
+   const game = games[gameId];
+   const request = game.currentRequest;
+   if (request !== null) {
+      game.currentRequest = null;
+      request.abort();
+   }
+}
+
+function processMeta(data) {
+   meta.lastModified = data.modified;
+
+   for (const game of data.games) {
+      if (game.gameId in meta.games === false || game.modified > meta.games[game.gameId].modified) {
+         meta.games[game.gameId] = game;
+         for (const cbId in meta.listeners) {
+            try {
+               meta.listeners[cbId](game, game.gameId);
+            } catch(err) {
+               console.error('uncaught exception in callback', err);
+            }
+         }
+      }
+   }
+}
+
+function startMetaPoll(afterTime) {
+   if (meta.currentRequest === null) {
+      if (afterTime === undefined) {
+         afterTime = meta.lastModified;
+      }
+
+      const thisRequest = meta.currentRequest = $.ajax({
+         dataType: 'json',
+         contentType: 'application/json',
+         url: `https://jessemcdonald.info/pacosako/api/games/poll/${afterTime}`,
+         cache: false,
+         timeout: LONG_TIMEOUT,
+      }).done((data, textStatus, jqXHR) => {
+         if (meta.currentRequest === thisRequest) {
+            meta.currentRequest = null;
+            if (jqXHR.status == 204) {
+               startMetaPoll(afterTime);
+            } else {
+               processMeta(data);
+               startMetaPoll(data.modified);
+            }
+         }
+      }).fail((jqXHR, textStatus, errorThrown) => {
+         if (meta.currentRequest === thisRequest) {
+            setTimeout(() => {
+               if (meta.currentRequest === thisRequest) {
+                  meta.currentRequest = null;
+                  startMetaPoll(0);
+               }
+            }, RETRY_DELAY);
+         }
+      });
+   }
+}
+
+function stopMetaPoll() {
+   const request = meta.currentRequest;
+   if (request !== null) {
+      meta.currentRequest = null;
+      request.abort();
+   }
+}
+
+module.exports = {
+   getGameState,
+   getGameMeta,
+   onGameUpdate,
+   onMetaUpdate,
+   sendUpdate,
+};
+
+/* vim:set expandtab sw=3 ts=8: */

js/pacosako_ui.js

@@ -1,11 +1,7 @@
 'use strict';
 
 import PS from './pacosako.js';
-
+import IO from './pacosako_io.js';
-import Gun from 'gun';
-import 'gun/nts';
-import 'gun/sea';
-import 'gun/lib/webrtc';
 
 import deepEqual from 'deep-equal';
 
@@ -16,75 +12,24 @@ import 'webpack-jquery-ui/css';
 
 import escape from 'lodash/escape';
 
+import jBox from 'jbox';
+import 'jbox/dist/jBox.all.css';
+
 /* "Waterdrop" by Porphyr (freesound.org/people/Porphyr) / CC BY 3.0 (creativecommons.org/licenses/by/3.0) */
 import Waterdrop from '../wav/191678__porphyr__waterdrop.wav';
 
 $(function (){
-   /* workaround for persistent errors accumulating which break synchronization */
-   if ('localStorage' in window) {
-      window.localStorage.removeItem('gun/');
-      window.localStorage.removeItem('gap/gun/');
-   }
-
-   let gun = Gun({
-      peers: ['https://jessemcdonald.info/gun'],
-   });
-
-   gun.on('in', function(msg) {
-      const filter = window.logGunIn;
-      if (filter && ((typeof filter !== 'function') || filter(msg)))
-      {
-         console.log('in msg: ', msg);
-      }
-   });
-
-   gun.on('out', function(msg) {
-      const filter = window.logGunOut;
-      if (filter && ((typeof filter !== 'function') || filter(msg)))
-      {
-         console.log('out msg: ', msg);
-      }
-   });
-
    function debug() {
       if (window.logDebug) {
          console.log.apply(console, arguments);
       }
    }
 
-   window.logGunIn = false;
-   window.logGunOut = false;
    window.logDebug = false;
 
    let currentGame = new PS.Game();
    let visibleGame = new PS.Game(currentGame);
    let cancelGameCallback = function() {};
-   let cancelMetaCallback = function() {};
-
-   Gun.chain.onWithCancel = (function() {
-      function cancelCallback(data,key,msg,ev) {
-         if (ev && typeof ev.off === 'function') {
-            ev.off();
-         }
-      }
-
-      return function(tag, arg, eas, as) {
-         if (typeof tag === 'function') {
-            let callback = tag;
-            const cancelEv = function() {
-               callback = cancelCallback;
-            };
-            const wrapper = function() {
-               return callback.apply(this, arguments);
-            };
-            this.on(wrapper, arg, eas, as);
-            return cancelEv;
-         } else {
-            this.on(tag, arg, eas, as);
-            return null;
-         }
-      };
-   })();
 
    function pieceTypeCode(type) {
       if (type === PS.KING) {
@@ -171,7 +116,7 @@ $(function (){
       piece.appendTo('#cb_hidden');
 
       try {
-         const meta = { timestamp: new Date(Gun.state()).getTime() };
+         const meta = { timestamp: +new Date() };
          currentGame.move(from, to, meta);
       } catch (err) {
          debug('unable to move', err);
@@ -488,11 +433,10 @@ $(function (){
       const gameId = boardElem.data('gameId');
       const moves = { past: currentGame.moves, future: currentGame.redoMoves };
       boardElem.data('last_state', currentGame.moves);
-      gun.get(PacoSakoUUID + '/game/' + gameId).get('board').put(JSON.stringify(moves));
+      putMeta({ board: moves });
-      putMeta();
    }
 
-   function putMeta(){
+   function putMeta(extra) {
       const gameId = $('#cb_board').data('gameId');
       const lightName = $('#cb_light_name').val();
       const darkName = $('#cb_dark_name').val();
@@ -501,7 +445,7 @@ $(function (){
       const lastMove = currentGame.lastMove || {};
       const lastMeta = lastMove.meta || {};
       const status =
-         (currentGame.status === PS.PLAYING) ? null :
+         (currentGame.status === PS.PLAYING) ? '' :
          (currentGame.status === PS.CHECKMATE) ? 'checkmate' :
          (currentGame.status === PS.RESIGNED) ? 'resigned' :
          'ended';
@@ -510,17 +454,24 @@ $(function (){
          lightName,
          darkName,
          moves: turns,
-         timestamp: lastMeta.timestamp || new Date(Gun.state()).getTime(),
+         timestamp: lastMeta.timestamp || +new Date(),
          status,
       };
 
-      const metaRef = gun.get(PacoSakoUUID + '/meta/' + gameId).put(meta);
+      if (extra) {
-
+         Object.assign(meta, extra);
-      if (lightName !== '' || darkName !== '' || turns !== 0) {
-         gun.get(PacoSakoUUID + '/meta').get(gameId).put(metaRef);
-      } else {
-         gun.get(PacoSakoUUID + '/meta').get(gameId).put(null);
       }
+
+      meta.modified = $('#cb_board').data('modified');
+      IO.sendUpdate(gameId, meta).catch((err) => {
+         new jBox('Notice', {
+            content: 'Failed to send update to server.',
+         });
+         debug('update error', err);
+
+         /* force a reset back to the latest server data */
+         switchGameId(gameId);
+      });
    }
 
    function switchGameId(newId){
@@ -533,13 +484,13 @@ $(function (){
       }
 
       cancelGameCallback();
-      cancelMetaCallback();
 
       boardElem.data('gameId', newId);
+      boardElem.data('modified', 0);
       location.hash = '#/' + newId;
 
-      const notifyAfter = new Date().getTime() + 2000;
+      const notifyAfter = +new Date() + 2000;
-      $(window).data('notifyAfter', new Date().getTime() + 2000);
+      $(window).data('notifyAfter', +new Date() + 2000);
       window.setTimeout(function() {
          /* Delete the notification block in case the system time is changed backward */
          if ($(window).data('notifyAfter') === notifyAfter) {
@@ -556,18 +507,14 @@ $(function (){
       $('#cb_light_name').val('');
       $('#cb_dark_name').val('');
 
-      cancelGameCallback = gun.get(PacoSakoUUID + '/game/' + newId).onWithCancel(function(d) {
+      cancelGameCallback = IO.onGameUpdate(newId, function(data, gameId) {
-         if (d && d.board) {
+         const board = data.board || { past: [], future: [] };
+
          try {
-               const received = JSON.parse(d.board);
+            const moves = { past: [...board.past], future: [...board.future] };
-               const moves = { past: [...received.past], future: [...received.future] };
             const oldState = { past: currentGame.moves, future: currentGame.redoMoves };
 
-               if (deepEqual(moves, oldState)) {
+            if (!deepEqual(moves, oldState)) {
-                  /* we already have this */
-                  return;
-               }
-
                debug('got board', moves);
 
                const newGame = new PS.Game();
@@ -596,19 +543,18 @@ $(function (){
                }
 
                setCurrentGame(newGame, newGame.moves.length > currentGame.moves.length);
+            }
          } catch (err) {
             debug('Error parsing board data', err);
          }
-         }
-      });
 
-      cancelMetaCallback = gun.get(PacoSakoUUID + '/meta').get(newId).onWithCancel(function(d) {
+         const d = data || {};
-         d = d || {};
-         debug('got meta', d);
          $('#cb_board').data('lightName', shortenName(String(d.lightName || 'Light')));
          $('#cb_board').data('darkName', shortenName(String(d.darkName || 'Dark')));
          $('#cb_light_name').val(String(d.lightName || ''));
          $('#cb_dark_name').val(String(d.darkName || ''));
+
+         $('#cb_board').data('modified', data.modified);
       });
 
       let selOpt = $('#cb_game_' + newId);
@@ -644,7 +590,7 @@ $(function (){
    const notifyAudio = new Audio(Waterdrop);
 
    function playNotifySound(){
-      const now = new Date().getTime();
+      const now = +new Date();
       const then = $(window).data('notifyAfter');
       if (!then || now >= then) {
          try { notifyAudio.play(); } catch (err) {}
@@ -652,7 +598,7 @@ $(function (){
    }
 
    function notify(body) {
-      const now = new Date().getTime();
+      const now = +new Date();
       const then = $(window).data('notifyAfter');
       if (!then || now >= then) {
          try {
@@ -824,7 +770,7 @@ $(function (){
 
    $('#cb_resign').on('click', function(){
       try {
-         const meta = { timestamp: new Date(Gun.state()).getTime() };
+         const meta = { timestamp: +new Date() };
          currentGame.resign(meta);
       } catch (err) {
          debug('unable to resign', err);
@@ -910,15 +856,24 @@ $(function (){
       }
    });
 
-   let updateMeta = function() { putMeta(); }
+   let idleTimeoutId = undefined;
-   $('#cb_light_name').on('input', updateMeta);
+   $('#cb_light_name, #cb_dark_name').on('input', function() {
-   $('#cb_dark_name').on('input', updateMeta);
+      if (idleTimeoutId !== undefined) {
+         clearTimeout(idleTimeoutId);
+      }
+      idleTimeoutId = setTimeout(function() { putMeta(); }, 500);
+   }).on('blur', function() {
+      if (idleTimeoutId !== undefined) {
+         clearTimeout(idleTimeoutId);
+      }
+      putMeta();
+   });
 
    function updateTitle(opt){
       opt = $(opt);
 
       const then = opt.data('then');
-      const now = new Date(Gun.state()).getTime();
+      const now = +new Date();
       let age_str = '';
       if (then > now) {
          age_str = ' (future)';
@@ -971,7 +926,7 @@ $(function (){
 
             opt.data('gameId', key);
             opt.data('title', lightName + ' vs. ' + darkName + moves + stat);
-            opt.data('then', d.timestamp || new Date(Gun.state()).getTime());
+            opt.data('then', d.timestamp || +new Date());
             opt.addClass('cb-game-option');
             opt.appendTo('#cb_select_game');
             updateTitle(opt);
@@ -997,45 +952,22 @@ $(function (){
          }
       }
 
-      let cancelAll = function(){};
+      let cancelMeta = null;
 
       return function() {
-         cancelAll();
-
          $('#cb_select_game .cb-game-option').remove();
          updateSelectMeta(null, $('#cb_board').data('gameId'));
 
-         const cancellers = {};
+         /* cancel and resubscribe to get all the cached data again */
-         let cancelMeta = gun.get(PacoSakoUUID + '/meta').onWithCancel(function(meta) {
+         if (cancelMeta) {
-            for (const gameId in meta) {  /* use of 'in' here is deliberate */
+            /* cancel, but don't stop polling the server */
-               /* 'gameId' may include extra GUN fields like '_' */
+            /* this is only a very brief interruption */
-               if (gameId.match(/^[0-9a-f]{16}$/)) {
+            cancelMeta(true);
-                  if (!Gun.obj.is(meta[gameId])) {
-                     updateSelectMeta(null, gameId);
-                     if (gameId in cancellers) {
-                        cancellers[gameId]();
-                        delete cancellers[gameId];
          }
-                  } else if (!(gameId in cancellers)) {
+
-                     cancellers[gameId] = gun.get(meta[gameId]).onWithCancel(function(d) {
+         cancelMeta = IO.onMetaUpdate(function(data, gameId) {
-                        updateSelectMeta(d, gameId);
+            updateSelectMeta(data, gameId);
          });
-                  }
-               }
-            }
-         }, { change: true });
-
-         cancelAll = function() {
-            cancelMeta();
-            cancelMeta = function(){};
-            for (const gameId in cancellers) {
-               cancellers[gameId]();
-               delete cancellers[gameId];
-            }
-            cancelAll = function(){};
-         };
-
-         return cancelAll;
       };
    })();
 
@@ -1047,31 +979,6 @@ $(function (){
       });
    }, 15000);
 
-   window.setInterval(function(){
-      const peers = gun._.opt.peers;
-      let n_open = 0;
-      let n_total = 0;
-      for (const peerId in peers) {
-         ++n_total;
-         try {
-            const peer = peers[peerId];
-            if (peer.constructor === RTCPeerConnection) {
-               if (peer.connectionState === 'connected') {
-                  ++n_open;
-               }
-            } else if (peer.wire && peer.wire.constructor === WebSocket) {
-               if (peer.wire.readyState === peer.wire.OPEN) {
-                  ++n_open;
-               }
-            }
-         } catch (err) {}
-      }
-      const newText = 'Synchronizing with ' + n_open + (n_open === 1 ? ' peer' : ' peers') + ' (' + n_total + ' total).';
-      if (newText !== $('#cb_peers').text()) {
-         $('#cb_peers').text(newText);
-      }
-   }, 1000);
-
    window.onpopstate = function(event){
       const foundId = location.hash.match(/^#\/([0-9a-f]{16}\b)/);
       if (foundId) {
@@ -1091,32 +998,16 @@ $(function (){
 
    /* Low-level commands to be run from the JS console */
    window.Admin = {
-      convertFromV2: function() {
-         gun.get(PacoSakoUUID).get('games').map().once(function(d,key){
-            if (d && d.board) {
-               debug('converting ' + key);
-               gun.get(PacoSakoUUID + '/game/' + key).get('board').put(d.board);
-            }
-         });
-
-         gun.get(PacoSakoUUID).get('meta').map().once(function(d,key){
-            if (d) {
-               debug('converting metadata for ' + key);
-               gun.get(PacoSakoUUID + '/meta').get(key).put(d);
-            }
-         });
-      },
-
       getCurrentGame: function() { return currentGame; },
       getVisibleGame: function() { return visibleGame; },
-      setCurrentGame: setCurrentGame,
+      setCurrentGame,
-      setVisibleGame: setVisibleGame,
+      setVisibleGame,
       refresh: function() { setCurrentGame(currentGame); },
-      renderBoard: renderBoard,
+      renderBoard,
-      putState: putState,
+      putState,
-      putMeta: putMeta,
+      putMeta,
-      gun: gun,
+      PacoSakoUUID,
-      PacoSakoUUID: PacoSakoUUID,
+      IO,
    };
 
    /*

package-lock.json

@@ -1083,42 +1083,6 @@
         "@hapi/hoek": "^8.3.0"
       }
     },
-    "@peculiar/asn1-schema": {
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-    "utf-8-validate": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/utf-8-validate/-/utf-8-validate-5.0.2.tgz",
-      "integrity": "sha512-SwV++i2gTD5qh2XqaPzBnNX88N6HdyhQrNNRykvcS0QKvItV9u3vPEJr+X5Hhfb1JC0r0e1alL0iB09rY8+nmw==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "node-gyp-build": "~3.7.0"
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-    },
     "util": {
       "version": "0.11.1",
       "resolved": "https://registry.npmjs.org/util/-/util-0.11.1.tgz",
@@ -10522,24 +10237,6 @@
         "neo-async": "^2.5.0"
       }
     },
-    "webcrypto-core": {
-      "version": "1.0.18",
-      "resolved": "https://registry.npmjs.org/webcrypto-core/-/webcrypto-core-1.0.18.tgz",
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-      "dev": true,
-      "optional": true,
-      "requires": {
-        "pvtsutils": "^1.0.10",
-        "tslib": "^1.11.1"
-      }
-    },
-    "webcrypto-shim": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/webcrypto-shim/-/webcrypto-shim-0.1.5.tgz",
-      "integrity": "sha512-mE+E00gulvbLjHaAwl0kph60oOLQRsKyivEFgV9DMM/3Y05F1vZvGq12hAcNzHRnYxyEOABBT/XMtwGSg5xA7A==",
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@@ -10964,12 +10661,6 @@
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-    "ws": {
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.3.tgz",
-      "integrity": "sha512-HTDl9G9hbkNDk98naoR/cHDws7+EyYMOdL1BmjsZXRUjf7d+MficC4B7HLUPlSiho0vg+CWKrGIt/VJBd1xunQ==",
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package.json

@@ -1,6 +1,6 @@
 {
   "name": "paco_sako",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "Online version of the Paco Ŝako chess variation",
   "browser": "index.js",
   "scripts": {
@@ -19,8 +19,8 @@
     "copy-webpack-plugin": "^5.1.1",
     "deep-equal": "git+https://jessemcdonald.info/gogs/nybble/node-deep-equal",
     "extract-loader": "^5.0.1",
-    "gun": "^0.2020.301",
     "html-webpack-plugin": "^4.0.4",
+    "jbox": "^1.2.0",
     "jquery-ui-touch-punch": "^0.2.3",
     "lodash": "^4.17.15",
     "mini-css-extract-plugin": "^0.9.0",