Add temporary patch for preset challenges

[vchess.git] / client / src / views / Game.vue

<template lang="pug">
main
  input#modalRules.modal(type="checkbox")
  div#rulesDiv(
    role="dialog"
    data-checkbox="modalRules"
  )
    .card
      label.modal-close(for="modalRules")
      a#variantNameInGame(:href="'/#/variants/'+game.vname") {{ game.vdisp }}
      div(v-html="rulesContent")
  input#modalScore.modal(type="checkbox")
  div#scoreDiv(
    role="dialog"
    data-checkbox="modalScore"
  )
    .card.text-center
      label.modal-close(for="modalScore")
      p.score-section
        span.score {{ game.score }}
        | &nbsp;:&nbsp;
        span.score-msg {{ st.tr[game.scoreMsg] }}
  input#modalRematch.modal(type="checkbox")
  div#rematchDiv(
    role="dialog"
    data-checkbox="modalRematch"
  )
    .card.text-center
      label.modal-close(for="modalRematch")
      a(
        :href="'#/game/' + rematchId"
        onClick="document.getElementById('modalRematch').checked=false"
      )
        | {{ st.tr["Rematch in progress"] }}
  input#modalChat.modal(
    type="checkbox"
    @click="toggleChat()"
  )
  div#chatWrap(
    role="dialog"
    data-checkbox="modalChat"
  )
    .card
      label.modal-close(for="modalChat")
      #participants
        span {{ st.tr["Participant(s):"] }} 
        span(
          v-for="p in Object.values(people)"
          v-if="!!p.name"
        )
          | {{ p.name }} 
        span.anonymous(v-if="someAnonymousPresent()") + @nonymous
      Chat(
        ref="chatcomp"
        :players="game.players"
        :pastChats="game.chats"
        @mychat="processChat"
        @chatcleared="clearChat"
      )
  input#modalConfirm.modal(type="checkbox")
  div#confirmDiv(role="dialog")
    .card
      .diagram(
        v-if="!!vr && ['all','byrow'].includes(vr.showMoves)"
        v-html="curDiag"
      )
      p.text-center(v-else)
        span {{ st.tr["Move played:"] + " " }}
        span.bold {{ moveNotation }}
        br
        span {{ st.tr["Are you sure?"] }}
      .button-group#buttonsConfirm
        // onClick for acceptBtn: set dynamically
        button.acceptBtn
          span {{ st.tr["Validate"] }}
        button.refuseBtn(@click="cancelMove()")
          span {{ st.tr["Cancel"] }}
  .row
    #aboveBoard.col-sm-12
      span.variant-cadence(v-if="game.type!='import'") {{ game.cadence }}
      span.variant-name
        | {{ game.vname }}
        | -
        | {{ vr.constructor.AbbreviateOptions(game.options) }}
      span#nextGame(
        v-if="nextIds.length > 0"
        @click="showNextGame()"
      )
        | {{ st.tr["Next_g"] }}
      button#chatBtn(
        :class="btnTooltipClass()"
        onClick="window.doClick('modalChat')"
        aria-label="Chat"
      )
        img(src="/images/icons/chat.svg")
      #actions(v-if="game.score=='*'")
        button(
          @click="clickDraw()"
          :class="btnTooltipClass('draw')"
          :aria-label="st.tr['Draw']"
        )
          img(src="/images/icons/draw.svg")
        button(
          v-if="!!game.mycolor"
          :class="btnTooltipClass()"
          @click="abortGame()"
          :aria-label="st.tr['Abort']"
        )
          img(src="/images/icons/abort.svg")
        button(
          v-if="!!game.mycolor"
          :class="btnTooltipClass()"
          @click="resign()"
          :aria-label="st.tr['Resign']"
        )
          img(src="/images/icons/resign.svg")
      button(
        v-else
        :class="btnTooltipClass('rematch')"
        @click="clickRematch()"
        :aria-label="st.tr['Rematch']"
      )
        img(src="/images/icons/rematch.svg")
      #playersInfo
        div(v-if="isLargeScreen()")
          UserBio.user-bio(
            :class="{connected: isConnected(0)}"
            :uid="game.players[0].id"
            :uname="game.players[0].name"
          )
          span.time(
            v-if="game.score=='*'"
            :class="{yourturn: !!vr && vr.turn == 'w'}"
          )
            span.time-left {{ virtualClocks[0][0] }}
            span.time-separator(v-if="!!virtualClocks[0][1]") :
            span.time-right(v-if="!!virtualClocks[0][1]")
              | {{ virtualClocks[0][1] }}
          span.split-names -
          UserBio.user-bio(
            :class="{connected: isConnected(1)}"
            :uid="game.players[1].id"
            :uname="game.players[1].name"
          )
          span.time(
            v-if="game.score=='*'"
            :class="{yourturn: !!vr && vr.turn == 'b'}"
          )
            span.time-left {{ virtualClocks[1][0] }}
            span.time-separator(v-if="!!virtualClocks[1][1]") :
            span.time-right(v-if="!!virtualClocks[1][1]")
              | {{ virtualClocks[1][1] }}
        div(v-else)
          UserBio.user-bio(
            :class="{connected: isConnected(0)}"
            :uid="game.players[0].id"
            :uname="game.players[0].name"
          )
          span.split-names -
          UserBio.user-bio(
            :class="{connected: isConnected(1)}"
            :uid="game.players[1].id"
            :uname="game.players[1].name"
          )
          div(v-if="game.score=='*'")
            span.time(:class="{yourturn: !!vr && vr.turn == 'w'}")
              span.time-left {{ virtualClocks[0][0] }}
              span.time-separator(v-if="!!virtualClocks[0][1]") :
              span.time-right(v-if="!!virtualClocks[0][1]")
                | {{ virtualClocks[0][1] }}
            span.separator
            span.time(:class="{yourturn: !!vr && vr.turn == 'b'}")
              span.time-left {{ virtualClocks[1][0] }}
              span.time-separator(v-if="!!virtualClocks[1][1]") :
              span.time-right(v-if="!!virtualClocks[1][1]")
                | {{ virtualClocks[1][1] }}
  BaseGame(
    ref="basegame"
    :game="game"
    @newmove="processMove"
  )
</template>

<script>
import BaseGame from "@/components/BaseGame.vue";
import UserBio from "@/components/UserBio.vue";
import Chat from "@/components/Chat.vue";
import { store } from "@/store";
import { GameStorage } from "@/utils/gameStorage";
import { ImportgameStorage } from "@/utils/importgameStorage";
import { ppt } from "@/utils/datetime";
import { notify } from "@/utils/notifications";
import { ajax } from "@/utils/ajax";
import { extractTime } from "@/utils/timeControl";
import { getRandString } from "@/utils/alea";
import { getScoreMessage } from "@/utils/scoring";
import { getFullNotation } from "@/utils/notation";
import { getDiagram, replaceByDiag } from "@/utils/printDiagram";
import { processModalClick } from "@/utils/modalClick";
import { playMove, getFilteredMove } from "@/utils/playUndo";
import { ArrayFun } from "@/utils/array";
import afterRawLoad from "@/utils/afterRawLoad";
import params from "@/parameters";
export default {
  name: "my-game",
  components: {
    BaseGame,
    Chat,
    UserBio
  },
  data: function() {
    return {
      st: store.state,
      // gameRef can point to a corr game, local game or remote live game
      gameRef: "",
      nextIds: [],
      game: {}, //passed to BaseGame
      focus: !document.hidden, //will not always work... TODO
      // virtualClocks will be initialized from true game.clocks
      // TODO: clock update triggers re-rendering. Should be out of Vue
      virtualClocks: [],
      vr: null, //"variant rules" object initialized from FEN
      rulesContent: "",
      drawOffer: "",
      rematchId: "",
      rematchOffer: "",
      lastateAsked: false,
      people: {}, //players + observers
      lastate: undefined, //used if opponent send lastate before game is ready
      repeat: {}, //detect position repetition
      curDiag: "", //for corr moves confirmation
      conn: null,
      roomInitialized: false,
      // If asklastate got no reply, ask again:
      gotLastate: false,
      gotMoveIdx: -1, //last move index received
      // If newmove got no pingback, send again:
      opponentGotMove: false,
      connexionString: "",
      socketCloseListener: 0,
      // Incomplete info games: show move played
      moveNotation: "",
      // Intervals from setInterval():
      askLastate: null,
      retrySendmove: null,
      clockUpdate: null,
      // Related to (killing of) self multi-connects:
      newConnect: {}
    };
  },
  watch: {
    $route: function(to, from) {
      if (to.path.length < 6 || to.path.substr(0, 6) != "/game/")
        // Page change
        this.cleanBeforeDestroy();
      else if (from.params["id"] != to.params["id"]) {
        // Change everything:
        this.cleanBeforeDestroy();
        let boardDiv = document.querySelector(".game");
        if (!!boardDiv)
          // In case of incomplete information variant:
          boardDiv.style.visibility = "hidden";
        this.atCreation();
      }
      else
        // Same game ID
        this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
    }
  },
  // NOTE: some redundant code with Hall.vue (mostly related to people array)
  created: function() {
    this.atCreation();
  },
  mounted: function() {
    document.getElementById("chatWrap")
      .addEventListener("click", (e) => {
        processModalClick(e, () => {
          this.toggleChat("close")
        });
      });
    ["rulesDiv", "rematchDiv", "scoreDiv"].forEach(
      (eltName) => {
        document.getElementById(eltName)
          .addEventListener("click", processModalClick);
      }
    );
  },
  beforeDestroy: function() {
    this.cleanBeforeDestroy();
  },
  methods: {
    cleanBeforeDestroy: function() {
      clearInterval(this.socketCloseListener);
      document.removeEventListener('visibilitychange', this.visibilityChange);
      window.removeEventListener('focus', this.onFocus);
      window.removeEventListener('blur', this.onBlur);
      if (!!this.askLastate) clearInterval(this.askLastate);
      if (!!this.retrySendmove) clearInterval(this.retrySendmove);
      if (!!this.clockUpdate) clearInterval(this.clockUpdate);
      this.conn.removeEventListener("message", this.socketMessageListener);
      this.send("disconnect");
      this.conn = null;
    },
    visibilityChange: function() {
      // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
      this.focus = (document.visibilityState == "visible");
      this.send(this.focus ? "getfocus" : "losefocus");
    },
    onFocus: function() {
      this.focus = true;
      this.send("getfocus");
    },
    onBlur: function() {
      this.focus = false;
      this.send("losefocus");
    },
    isLargeScreen: function() {
      return window.innerWidth >= 768;
    },
    btnTooltipClass: function(thing) {
      let append = {};
      if (!!thing) append = { [thing + "-" + this[thing + "Offer"]]: true };
      return (
        Object.assign(
          { tooltip: !("ontouchstart" in window) },
          append
        )
      );
    },
    someAnonymousPresent: function() {
      return (
        Object.values(this.people).some(p =>
          !p.name && Object.keys(p.tmpIds).some(x => p.tmpIds[x].focus)
        )
      );
    },
    atCreation: function() {
      document.addEventListener('visibilitychange', this.visibilityChange);
      window.addEventListener('focus', this.onFocus);
      window.addEventListener('blur', this.onBlur);
      // 0] (Re)Set variables
      this.gameRef = this.$route.params["id"];
      // next = next corr games IDs to navigate faster (if applicable)
      this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
      // Always add myself to players' list
      const my = this.st.user;
      const tmpId = getRandString();
      this.$set(
        this.people,
        my.sid,
        {
          id: my.id,
          name: my.name,
          tmpIds: {
            tmpId: { focus: true }
          }
        }
      );
      this.game = {
        players: [{ name: "" }, { name: "" }],
        chats: [],
        rendered: false
      };
      let chatComp = this.$refs["chatcomp"];
      if (!!chatComp) chatComp.chats = [];
      this.virtualClocks = [[0,0], [0,0]];
      this.vr = null;
      this.rulesContent = "";
      this.drawOffer = "";
      this.lastateAsked = false;
      this.rematchOffer = "";
      this.lastate = undefined;
      this.roomInitialized = false;
      this.gotLastate = false;
      this.gotMoveIdx = -1;
      this.opponentGotMove = false;
      this.askLastate = null;
      this.retrySendmove = null;
      this.clockUpdate = null;
      this.newConnect = {};
      // 1] Initialize connection
      this.connexionString =
        params.socketUrl +
        "/?sid=" + this.st.user.sid +
        "&id=" + this.st.user.id +
        "&tmpId=" + tmpId +
        "&page=" +
        // Discard potential "/?next=[...]" for page indication:
        encodeURIComponent(this.$route.path.match(/\/game\/[a-zA-Z0-9]+/)[0]);
      this.conn = new WebSocket(this.connexionString);
      this.conn.addEventListener("message", this.socketMessageListener);
      this.socketCloseListener = setInterval(
        () => {
          if (this.conn.readyState == 3) {
            this.conn.removeEventListener(
              "message", this.socketMessageListener);
            this.conn = new WebSocket(this.connexionString);
            this.conn.addEventListener("message", this.socketMessageListener);
          }
        },
        1000
      );
      // Socket init required before loading remote game:
      const socketInit = callback => {
        if (this.conn.readyState == 1)
          // 1 == OPEN state
          callback();
        else
          // Socket not ready yet (initial loading)
          // NOTE: first arg is Websocket object, unused here:
          this.conn.onopen = () => callback();
      };
      this.fetchGame((game) => {
        if (!!game) {
          if (!game.options) {
            // Patch for retro-compatibility (TODO: remove it)
            game.options = { randomness: game.randomness };
            delete game["randomness"];
          }
          else game.options = JSON.parse(game.options);
          this.loadVariantThenGame(game, () => socketInit(this.roomInit));
        }
        else
          // Live game stored remotely: need socket to retrieve it
          // NOTE: the callback "roomInit" will be lost, so it's not provided.
          // --> It will be given when receiving "fullgame" socket event.
          socketInit(() => { this.send("askfullgame"); });
      });
    },
    roomInit: function() {
      if (!this.roomInitialized) {
        // Notify the room only now that I connected, because
        // messages might be lost otherwise (if game loading is slow)
        this.send("connect");
        this.send("pollclients");
        // We may ask fullgame several times if some moves are lost,
        // but room should be init only once:
        this.roomInitialized = true;
      }
    },
    send: function(code, obj) {
      if (!!this.conn && this.conn.readyState == 1)
        this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
    },
    isConnected: function(index) {
      const player = this.game.players[index];
      // Is it me ? In this case no need to bother with focus
      if (
        this.st.user.sid == player.sid ||
        (!!player.name && this.st.user.id == player.id)
      ) {
        // Still have to check for name (because of potential multi-accounts
        // on same browser, although this should be rare...)
        return (!this.st.user.name || this.st.user.name == player.name);
      }
      // Try to find a match in people:
      return (
        (
          !!player.sid &&
          Object.keys(this.people).some(sid => {
            return (
              sid == player.sid &&
              Object.values(this.people[sid].tmpIds).some(v => v.focus)
            );
          })
        )
        ||
        (
          player.id > 0 &&
          Object.values(this.people).some(p => {
            return (
              p.id == player.id &&
              Object.values(p.tmpIds).some(v => v.focus)
            );
          })
        )
      );
    },
    getOppsid: function() {
      let oppsid = this.game.oppsid;
      if (!oppsid) {
        oppsid = Object.keys(this.people).find(
          sid => this.people[sid].id == this.game.oppid
        );
      }
      // oppsid is useful only if opponent is online:
      if (!!oppsid && !!this.people[oppsid]) return oppsid;
      return null;
    },
    // NOTE: action if provided is always a closing action
    toggleChat: function(action) {
      if (!action && document.getElementById("modalChat").checked)
        // Entering chat
        document.getElementById("inputChat").focus();
      else {
        document.getElementById("chatBtn").classList.remove("somethingnew");
        if (!!this.game.mycolor) {
          // Update "chatRead" variable either on server or locally
          if (this.game.type == "corr")
            this.updateCorrGame({ chatRead: this.game.mycolor });
          else if (this.game.type == "live")
            GameStorage.update(this.gameRef, { chatRead: true });
        }
      }
    },
    processChat: function(chat) {
      this.send("newchat", { data: chat });
      // NOTE: anonymous chats in corr games are not stored on server (TODO?)
      if (!!this.game.mycolor) {
        if (this.game.type == "corr")
          this.updateCorrGame({ chat: chat });
        else {
          // Live game
          chat.added = Date.now();
          GameStorage.update(this.gameRef, { chat: chat });
        }
      }
    },
    clearChat: function() {
      if (!!this.game.mycolor) {
        if (this.game.type == "corr") {
          ajax(
            "/chats",
            "DELETE",
            { data: { gid: this.game.id } }
          );
        }
        else {
          // Live game
          GameStorage.update(this.gameRef, { delchat: true });
        }
        this.$set(this.game, "chats", []);
      }
    },
    getGameType: function(game) {
      if (!!game.id.toString().match(/^i/)) return "import";
      return (game.cadence.indexOf("d") >= 0 ? "corr" : "live");
    },
    // Notify something after a new move (to opponent and me on MyGames page)
    notifyMyGames: function(thing, data) {
      this.send(
        "notify" + thing,
        {
          data: data,
          targets: this.game.players.map(p => {
            return { sid: p.sid, id: p.id };
          })
        }
      );
    },
    showNextGame: function() {
      // Did I play in current game? If not, add it to nextIds list
      if (this.game.score == "*" && this.vr.turn == this.game.mycolor)
        this.nextIds.unshift(this.game.id);
      const nextGid = this.nextIds.pop();
      this.$router.push(
        "/game/" + nextGid + "/?next=" + JSON.stringify(this.nextIds));
    },
    socketMessageListener: function(msg) {
      if (!this.conn) return;
      const data = JSON.parse(msg.data);
      switch (data.code) {
        case "pollclients":
          // TODO: shuffling and random filtering on server,
          // if the room is really crowded.
          Object.keys(data.sockIds).forEach(sid => {
            if (sid != this.st.user.sid) {
              this.send("askidentity", { target: sid });
              this.people[sid] = { tmpIds: data.sockIds[sid] };
            }
            else {
              // Complete my tmpIds:
              Object.assign(this.people[sid].tmpIds, data.sockIds[sid]);
            }
          });
          break;
        case "connect":
          if (!this.people[data.from[0]]) {
            // focus depends on the tmpId (e.g. tab)
            this.$set(
              this.people,
              data.from[0],
              {
                tmpIds: {
                  [data.from[1]]: { focus: true }
                }
              }
            );
            // For self multi-connects tests:
            this.newConnect[data.from[0]] = true;
            this.send("askidentity", { target: data.from[0] });
          }
          else {
            this.people[data.from[0]].tmpIds[data.from[1]] = { focus: true };
            this.$forceUpdate(); //TODO: shouldn't be required
          }
          break;
        case "disconnect":
          if (!this.people[data.from[0]]) return;
          delete this.people[data.from[0]].tmpIds[data.from[1]];
          if (Object.keys(this.people[data.from[0]].tmpIds).length == 0)
            this.$delete(this.people, data.from[0]);
          else this.$forceUpdate(); //TODO: shouldn't be required
          break;
        case "getfocus": {
          let player = this.people[data.from[0]];
          if (!!player) {
            player.tmpIds[data.from[1]].focus = true;
            this.$forceUpdate(); //TODO: shouldn't be required
          }
          break;
        }
        case "losefocus": {
          let player = this.people[data.from[0]];
          if (!!player) {
            player.tmpIds[data.from[1]].focus = false;
            this.$forceUpdate(); //TODO: shouldn't be required
          }
          break;
        }
        case "askidentity": {
          // Request for identification
          const me = {
            // Decompose to avoid revealing email
            name: this.st.user.name,
            sid: this.st.user.sid,
            id: this.st.user.id
          };
          this.send("identity", { data: me, target: data.from });
          break;
        }
        case "identity": {
          const user = data.data;
          let player = this.people[user.sid];
          // player.tmpIds is already set
          player.name = user.name;
          player.id = user.id;
          if (this.game.type == "live") {
            const myGidx =
              this.game.players.findIndex(p => p.sid == this.st.user.sid);
            // Sometimes a player name isn't stored yet (TODO: why?)
            if (
              myGidx >= 0 &&
              !this.game.players[1 - myGidx].name &&
              this.game.players[1 - myGidx].sid == user.sid &&
              !!user.name
            ) {
              this.game.players[1-myGidx].name = user.name;
              GameStorage.update(
                this.gameRef,
                { playerName: { idx: 1 - myGidx, name: user.name } }
              );
            }
          }
          this.$forceUpdate(); //TODO: shouldn't be required
          // If I multi-connect, kill current connexion if no mark (I'm older)
          if (this.newConnect[user.sid]) {
            delete this.newConnect[user.sid];
            if (
              user.id > 0 &&
              user.id == this.st.user.id &&
              user.sid != this.st.user.sid
            ) {
              this.cleanBeforeDestroy();
              alert(this.st.tr["New connexion detected: tab now offline"]);
              break;
            }
          }
          // Ask potentially missed last state, if opponent and I play
          if (
            !this.gotLastate &&
            !!this.game.mycolor &&
            this.game.type == "live" &&
            this.game.players.some(p => p.sid == user.sid)
          ) {
            this.send("asklastate", { target: user.sid });
            let counter = 1;
            this.askLastate = setInterval(
              () => {
                // Ask at most 3 times:
                // if no reply after that there should be a network issue.
                if (
                  counter < 3 &&
                  !this.gotLastate &&
                  !!this.people[user.sid]
                ) {
                  this.send("asklastate", { target: user.sid });
                  counter++;
                }
                else clearInterval(this.askLastate);
              },
              1500
            );
          }
          break;
        }
        case "askgame":
          // Send current (live or import) game,
          // if not asked by any of the players
          if (
            this.game.type != "corr" &&
            this.game.players.every(p => p.sid != data.from[0])
          ) {
            const myGame = {
              id: this.game.id,
              // FEN is current position, unused for now
              fen: this.game.fen,
              players: this.game.players,
              vid: this.game.vid,
              cadence: this.game.cadence,
              score: this.game.score
            };
            this.send("game", { data: myGame, target: data.from });
          }
          break;
        case "askfullgame":
          const gameToSend = Object.keys(this.game)
            .filter(k =>
              [
                "id","fen","players","vid","cadence","fenStart","options",
                "moves","clocks","score","drawOffer","rematchOffer"
              ].includes(k))
            .reduce(
              (obj, k) => {
                obj[k] = this.game[k];
                return obj;
              },
              {}
            );
          this.send("fullgame", { data: gameToSend, target: data.from });
          break;
        case "fullgame":
          if (!!data.data.empty) {
            alert(this.st.tr["The game should be in another tab"]);
            this.$router.go(-1);
          }
          else
            // Callback "roomInit" to poll clients only after game is loaded
            this.loadVariantThenGame(data.data, this.roomInit);
          break;
        case "asklastate":
          // Sending informative last state if I played a move or score != "*"
          // If the game or moves aren't loaded yet, delay the sending:
          // TODO: socket init after game load, so the game is supposedly ready
          if (!this.game || !this.game.moves) this.lastateAsked = true;
          else this.sendLastate(data.from);
          break;
        // TODO: possible bad scenario: reload page while oppponent sends a
        // move => get both lastate and newmove, process both, add move twice.
        // Confirm scenario? Fix?
        case "lastate": {
          // Got opponent infos about last move
          this.gotLastate = true;
          this.lastate = data.data;
          if (this.lastate.movesCount - 1 > this.gotMoveIdx)
            this.gotMoveIdx = this.lastate.movesCount - 1;
          if (this.game.rendered)
            // Game is rendered (Board component)
            this.processLastate();
          // Else: will be processed when game is ready
          break;
        }
        case "newmove": {

// DEBUG:
//console.log("Receive move");
//console.log(data.data);
//moveslist not updated when receiving a move? (see in BaseGame)

          const movePlus = data.data;
          const movesCount = this.game.moves.length;
          if (
            movePlus.index < movesCount ||
            this.gotMoveIdx >= movePlus.index
          ) {
            // Opponent re-send but we already have the move:
            // (maybe he didn't receive our pingback...)
            this.send("gotmove", {data: movePlus.index, target: data.from});
          }
          else {
            this.gotMoveIdx = movePlus.index;
            const receiveMyMove = (movePlus.color == this.game.mycolor);
            const moveColIdx = ["w", "b"].indexOf(movePlus.color);
            if (!receiveMyMove && !!this.game.mycolor) {
              // Notify opponent that I got the move:
              this.send(
                "gotmove",
                { data: movePlus.index, target: data.from }
              );
              // And myself if I'm elsewhere:
              if (!this.focus) {
                notify(
                  "New move",
                  {
                    body:
                      (this.game.players[moveColIdx].name || "@nonymous") +
                      " just played."
                  }
                );
              }
            }
            if (movePlus.cancelDrawOffer) {
              // Opponent refuses draw
              this.drawOffer = "";
              // NOTE for corr games: drawOffer reset by player in turn
              if (
                this.game.type == "live" &&
                !!this.game.mycolor &&
                !receiveMyMove
              ) {
                GameStorage.update(this.gameRef, { drawOffer: "" });
              }
            }
            this.$refs["basegame"].play(movePlus.move, "received");
            // Freeze time while the move is being play
            // (TODO: a callback would be cleaner here)
            clearInterval(this.clockUpdate);
            this.clockUpdate = null;
            const freezeDuration = ["all", "highlight"].includes(V.ShowMoves)
              // 250 = length of animation, 500 = delay between sub-moves
              ? 250 + 750 *
                (Array.isArray(movePlus.move) ? movePlus.move.length - 1 : 0)
              // Incomplete information: no move animation
              : 0;
            setTimeout(
              () => {
                this.game.clocks[moveColIdx] = movePlus.clock;
                this.processMove(
                  movePlus.move,
                  { receiveMyMove: receiveMyMove }
                );
              },
              freezeDuration
            );
          }
          break;
        }
        case "gotmove": {
          this.opponentGotMove = true;
          // Now his clock starts running on my side:
          const oppIdx = ['w','b'].indexOf(this.vr.turn);
          // NOTE: next line to avoid multi-resetClocks when several tabs
          // on same game, resulting in a faster countdown.
          if (!!this.clockUpdate) clearInterval(this.clockUpdate);
          this.re_setClocks();
          break;
        }
        case "resign":
          const score = (data.data == "b" ? "1-0" : "0-1");
          const side = (data.data == "w" ? "White" : "Black");
          this.gameOver(score, side + " surrender");
          break;
        case "abort":
          this.gameOver("?", "Stop");
          break;
        case "draw":
          this.gameOver("1/2", data.data);
          break;
        case "drawoffer":
          // NOTE: observers don't know who offered draw
          this.drawOffer = "received";
          if (!!this.game.mycolor && this.game.type == "live") {
            GameStorage.update(
              this.gameRef,
              { drawOffer: V.GetOppCol(this.game.mycolor) }
            );
          }
          break;
        case "rematchoffer":
          // NOTE: observers don't know who offered rematch
          this.rematchOffer = data.data ? "received" : "";
          if (!!this.game.mycolor && this.game.type == "live") {
            GameStorage.update(
              this.gameRef,
              { rematchOffer: data.data ? V.GetOppCol(this.game.mycolor) : "" }
            );
          }
          break;
        case "newgame": {
          // A game started, redirect if I'm playing in
          const gameInfo = data.data;
          const gameType = this.getGameType(gameInfo);
          if (
            gameType == "live" &&
            gameInfo.players.some(p => p.sid == this.st.user.sid)
          ) {
            this.addAndGotoLiveGame(gameInfo);
          }
          else if (
            gameType == "corr" &&
            this.st.user.id > 0 &&
            gameInfo.players.some(p => p.id == this.st.user.id)
          ) {
            this.$router.push("/game/" + gameInfo.id);
          }
          else {
            this.rematchId = gameInfo.id;
            document.getElementById("modalRules").checked = false;
            document.getElementById("modalScore").checked = false;
            document.getElementById("modalRematch").checked = true;
          }
          break;
        }
        case "newchat": {
          let chat = data.data;
          this.$refs["chatcomp"].newChat(chat);
          if (this.game.type == "live") {
            chat.added = Date.now();
            if (!!this.game.mycolor)
              GameStorage.update(this.gameRef, { chat: chat });
          }
          if (!document.getElementById("modalChat").checked)
            document.getElementById("chatBtn").classList.add("somethingnew");
          break;
        }
      }
    },
    updateCorrGame: function(obj, callback) {
      ajax(
        "/games",
        "PUT",
        {
          data: {
            gid: this.gameRef,
            newObj: obj
          },
          success: () => {
            if (!!callback) callback();
          }
        }
      );
    },
    sendLastate: function(target) {
      // Send our "last state" informations to opponent
      const L = this.game.moves.length;
      const myIdx = ["w", "b"].indexOf(this.game.mycolor);
      const myLastate = {
        lastMove:
          (L > 0 && this.vr.turn != this.game.mycolor)
            ? this.game.moves[L - 1]
            : undefined,
        clock: this.game.clocks[myIdx],
        // Since we played a move (or abort or resign),
        // only drawOffer=="sent" is possible
        drawSent: this.drawOffer == "sent" ? true : undefined,
        rematchSent: this.rematchOffer == "sent" ? true : undefined,
        score: this.game.score != "*" ? this.game.score : undefined,
        scoreMsg: this.game.score != "*" ? this.game.scoreMsg : undefined,
        movesCount: L
      };
      this.send("lastate", { data: myLastate, target: target });
    },
    // lastate was received, but maybe game wasn't ready yet:
    processLastate: function() {
      const data = this.lastate;
      this.lastate = undefined; //security...
      if (!!data.score) {
        const oppCol = V.GetOppCol(this.game.mycolor);
        if (!!data.rematchSent) {
          if (this.game.rematchOffer != oppCol) {
            // Opponent sended rematch offer while we were offline:
            this.rematchOffer = "received";
            GameStorage.update(
              this.gameRef,
              { rematchOffer: oppCol }
            );
          }
        }
        else {
          if (this.game.rematchOffer == oppCol) {
            // Opponent cancelled rematch offer while we were offline:
            this.rematchOffer = "";
            GameStorage.update(
              this.gameRef,
              { rematchOffer: "" }
            );
          }
        }
      }
      else {
        const L = this.game.moves.length;
        const oppIdx = 1 - ["w", "b"].indexOf(this.game.mycolor);
        this.game.clocks[oppIdx] = data.clock;
        if (data.movesCount > L) {
          // Just got last move from him
          this.$refs["basegame"].play(data.lastMove, "received");
          this.processMove(data.lastMove);
        }
        else {
          if (!!this.clockUpdate) clearInterval(this.clockUpdate);
          this.re_setClocks();
        }
        if (!!data.drawSent) this.drawOffer = "received";
        if (!!data.score) {
          this.drawOffer = "";
          if (this.game.score == "*")
            this.gameOver(data.score, data.scoreMsg);
        }
      }
    },
    clickDraw: function() {
      if (!this.game.mycolor || this.game.type == "import") return;
      if (["received", "threerep"].includes(this.drawOffer)) {
        if (!confirm(this.st.tr["Accept draw?"])) return;
        const message =
          this.drawOffer == "received"
            ? "Mutual agreement"
            : "Three repetitions";
        this.send("draw", { data: message });
        this.gameOver("1/2", message);
      }
      else if (this.drawOffer == "") {
        // No effect if drawOffer == "sent"
        if (this.game.mycolor != this.vr.turn) {
          alert(this.st.tr["Draw offer only in your turn"]);
          return;
        }
        if (!confirm(this.st.tr["Offer draw?"])) return;
        this.drawOffer = "sent";
        this.send("drawoffer");
        if (this.game.type == "live") {
          GameStorage.update(
            this.gameRef,
            { drawOffer: this.game.mycolor }
          );
        }
        else this.updateCorrGame({ drawOffer: this.game.mycolor });
      }
    },
    addAndGotoLiveGame: function(gameInfo, callback) {
      const game = Object.assign(
        {},
        gameInfo,
        {
          // (other) Game infos: constant
          fenStart: gameInfo.fen,
          created: Date.now(),
          // Game state (including FEN): will be updated
          moves: [],
          clocks: [-1, -1], //-1 = unstarted
          chats: [],
          score: "*"
        }
      );
      GameStorage.add(game, (err) => {
        // No error expected.
        if (!err) {
          if (this.st.settings.sound)
            new Audio("/sounds/newgame.flac").play().catch(() => {});
          if (!!callback) callback();
          this.$router.push("/game/" + gameInfo.id);
        }
      });
    },
    clickRematch: function() {
      if (!this.game.mycolor || this.game.type == "import") return;
      if (this.rematchOffer == "received") {
        // Start a new game!
        let gameInfo = {
          id: getRandString(), //ignored if corr
          fen: V.GenRandInitFen(this.game.options),
          options: this.game.options,
          players: [this.game.players[1], this.game.players[0]],
          vid: this.game.vid,
          cadence: this.game.cadence
        };
        const notifyNewGame = () => {
          this.send("rnewgame", { data: gameInfo });
          // To main Hall if corr game:
          if (this.game.type == "corr")
            this.send("newgame", { data: gameInfo, page: "/" });
          // Also to MyGames page:
          this.notifyMyGames("newgame", gameInfo);
        };
        if (this.game.type == "live") {
          GameStorage.update(
            this.gameRef,
            { rematchOffer: "" }
          );
          // Increment game stats counter in DB
          ajax(
            "/gamestat",
            "POST",
            { data: { vid: gameInfo.vid } }
          );
          this.addAndGotoLiveGame(gameInfo, notifyNewGame);
        }
        else {
          // corr game
          this.updateCorrGame({ rematchOffer: 'n' });
          ajax(
            "/games",
            "POST",
            {
              data: Object.assign(
                {},
                gameInfo,
                { options: JSON.stringify(this.game.options) }
              ),
              success: (response) => {
                gameInfo.id = response.id;
                notifyNewGame();
                this.$router.push("/game/" + response.id);
              }
            }
          );
        }
      }
      else if (this.rematchOffer == "") {
        this.rematchOffer = "sent";
        this.send("rematchoffer", { data: true });
        if (this.game.type == "live") {
          GameStorage.update(
            this.gameRef,
            { rematchOffer: this.game.mycolor }
          );
        }
        else this.updateCorrGame({ rematchOffer: this.game.mycolor });
      }
      else if (this.rematchOffer == "sent") {
        // Toggle rematch offer (on --> off)
        this.rematchOffer = "";
        this.send("rematchoffer", { data: false });
        if (this.game.type == "live") {
          GameStorage.update(
            this.gameRef,
            { rematchOffer: '' }
          );
        }
        else this.updateCorrGame({ rematchOffer: 'n' });
      }
    },
    abortGame: function() {
      if (!this.game.mycolor || !confirm(this.st.tr["Terminate game?"]))
        return;
      this.gameOver("?", "Stop");
      this.send("abort");
    },
    resign: function() {
      if (!this.game.mycolor || !confirm(this.st.tr["Resign the game?"]))
        return;
      this.send("resign", { data: this.game.mycolor });
      const score = (this.game.mycolor == "w" ? "0-1" : "1-0");
      const side = (this.game.mycolor == "w" ? "White" : "Black");
      this.gameOver(score, side + " surrender");
    },
    loadGame: function(game, callback) {
      const gtype = game.type || this.getGameType(game);
      const tc = extractTime(game.cadence);
      const myIdx = game.players.findIndex(p => {
        return (
          p.sid == this.st.user.sid ||
          (!!p.name && p.id == this.st.user.id)
        );
      });
      // Sometimes the name isn't stored yet (TODO: why?)
      if (
        myIdx >= 0 &&
        gtype == "live" &&
        !game.players[myIdx].name &&
        !!this.st.user.name
      ) {
        game.players[myIdx].name = this.st.user.name;
        GameStorage.update(
          game.id,
          { playerName: { idx: myIdx, name: this.st.user.name } }
        );
      }
      // "mycolor" is undefined for observers
      const mycolor = [undefined, "w", "b"][myIdx + 1];
      if (gtype == "corr") {
        if (mycolor == 'w') game.chatRead = game.chatReadWhite;
        else if (mycolor == 'b') game.chatRead = game.chatReadBlack;
        // NOTE: clocks in seconds
        game.moves.sort((m1, m2) => m1.idx - m2.idx); //in case of
        game.clocks = [tc.mainTime, tc.mainTime];
        const L = game.moves.length;
        if (game.score == "*") {
          // Adjust clocks
          if (L >= 2) {
            game.clocks[L % 2] -=
              (Date.now() - game.moves[L-1].played) / 1000;
          }
        }
        // Now that we used idx and played, re-format moves as for live games
        game.moves = game.moves.map(m => m.squares);
      }
      else if (gtype == "live") {
        if (game.clocks[0] < 0) {
          // Game is unstarted. clock is ignored until move 2
          game.clocks = [tc.mainTime, tc.mainTime];
          if (myIdx >= 0) {
            // I play in this live game
            GameStorage.update(
              game.id,
              { clocks: game.clocks }
            );
          }
        }
        else if (!!game.initime)
          // It's my turn: clocks not updated yet
          game.clocks[myIdx] -= (Date.now() - game.initime) / 1000;
      }
      else
        // gtype == "import"
        game.clocks = [tc.mainTime, tc.mainTime];
      // Live games before 26/03/2020 don't have chat history:
      if (!game.chats) game.chats = []; //TODO: remove line
      // Sort chat messages from newest to oldest
      game.chats.sort((c1, c2) => c2.added - c1.added);
      if (
        myIdx >= 0 &&
        game.chats.length > 0 &&
        (!game.chatRead || game.chatRead < game.chats[0].added)
      ) {
        // A chat message arrived since my last reading:
        document.getElementById("chatBtn").classList.add("somethingnew");
      }
      // TODO: merge next 2 "if" conditions
      if (!!game.drawOffer) {
        if (game.drawOffer == "t")
          // Three repetitions
          this.drawOffer = "threerep";
        else {
          // Draw offered by any of the players:
          if (myIdx < 0) this.drawOffer = "received";
          else {
            // I play in this game:
            if (
              (game.drawOffer == "w" && myIdx == 0) ||
              (game.drawOffer == "b" && myIdx == 1)
            )
              this.drawOffer = "sent";
            else this.drawOffer = "received";
          }
        }
      }
      if (!!game.rematchOffer) {
        if (myIdx < 0) this.rematchOffer = "received";
        else {
          // I play in this game:
          if (
            (game.rematchOffer == "w" && myIdx == 0) ||
            (game.rematchOffer == "b" && myIdx == 1)
          ) {
            this.rematchOffer = "sent";
          }
          else this.rematchOffer = "received";
        }
      }
      this.repeat = {}; //reset: scan past moves' FEN:
      let repIdx = 0;
      this.vr = new V(game.fenStart);
      let curTurn = "n";
      game.moves.forEach(m => {
        playMove(m, this.vr);
        const fenIdx = this.vr.getFenForRepeat();
        this.repeat[fenIdx] = this.repeat[fenIdx]
          ? this.repeat[fenIdx] + 1
          : 1;
      });
      // Imported games don't have current FEN
      if (!game.fen) game.fen = this.vr.getFen();
      if (this.repeat[repIdx] >= 3) this.drawOffer = "threerep";
      this.game = Object.assign(
        // NOTE: assign mycolor here, since BaseGame could also be VS computer
        {
          type: gtype,
          increment: tc.increment,
          mycolor: mycolor,
          // opponent sid not strictly required (or available), but easier
          // at least oppsid or oppid is available anyway:
          oppsid: myIdx < 0 ? undefined : game.players[1 - myIdx].sid,
          oppid: myIdx < 0 ? undefined : game.players[1 - myIdx].id
        },
        game
      );
      this.$refs["basegame"].re_setVariables(this.game);
      // Initial loading:
      this.gotMoveIdx = game.moves.length - 1;
      // If we arrive here after 'nextGame' action, the board might be hidden
      let boardDiv = document.querySelector(".game");
      if (!!boardDiv && boardDiv.style.visibility == "hidden")
        boardDiv.style.visibility = "visible";
      this.re_setClocks();
      this.$nextTick(() => {
        this.game.rendered = true;
        // Did lastate arrive before game was rendered?
        if (!!this.lastate) this.processLastate();
      });
      if (this.lastateAsked) {
        this.lastateAsked = false;
        this.sendLastate(game.oppsid);
      }
      if (!!callback) callback();
    },
    loadVariantThenGame: async function(game, callback) {
      const afterSetVname = async () => {
        await import("@/variants/" + game.vname + ".js")
        .then((vModule) => {
          window.V = vModule[game.vname + "Rules"];
          this.loadGame(game, callback);
        });
        this.rulesContent =
          afterRawLoad(
            require(
              "raw-loader!@/translations/rules/" +
              game.vname + "/" + this.st.lang + ".pug"
            ).default
          ).replace(/(fen:)([^:]*):/g, replaceByDiag);
      };
      let variant = undefined;
      const trySetVname = setInterval(
        () => {
          // this.st.variants might be uninitialized (variant == null)
          variant = this.st.variants.find(v => v.id == game.vid);
          if (!!variant) {
            clearInterval(trySetVname);
            game.vname = variant.name;
            game.vdisp = variant.display;
            afterSetVname();
          }
        }, 500
      );
    },
    // 3 cases for loading a game:
    //  - from indexedDB (running or completed live game I play)
    //  - from server (one correspondance game I play[ed] or not)
    //  - from remote peer (one live game I don't play, finished or not)
    fetchGame: function(callback) {
      if (
        Number.isInteger(this.gameRef) ||
        !isNaN(parseInt(this.gameRef, 10))
      ) {
        // corr games identifiers are integers
        ajax(
          "/games",
          "GET",
          {
            data: { gid: this.gameRef },
            success: (res) => {
              res.game.moves.forEach(m => {
                m.squares = JSON.parse(m.squares);
              });
              callback(res.game);
            }
          }
        );
      }
      else if (!!this.gameRef.match(/^i/))
        // Game import (maybe remote)
        ImportgameStorage.get(this.gameRef, callback);
      else
        // Local live game (or remote)
        GameStorage.get(this.gameRef, callback);
    },
    re_setClocks: function() {
      this.virtualClocks = this.game.clocks.map(s => ppt(s).split(':'));
      if (this.game.moves.length < 2 || this.game.score != "*") {
        // 1st move not completed yet, or game over: freeze time
        return;
      }
      const currentTurn = this.vr.turn;
      const currentMovesCount = this.game.moves.length;
      const colorIdx = ["w", "b"].indexOf(currentTurn);
      this.clockUpdate = setInterval(
        () => {
          if (
            this.game.clocks[colorIdx] < 0 ||
            this.game.moves.length > currentMovesCount ||
            this.game.score != "*"
          ) {
            clearInterval(this.clockUpdate);
            this.clockUpdate = null;
            if (this.game.clocks[colorIdx] < 0)
              this.gameOver(
                currentTurn == "w" ? "0-1" : "1-0",
                "Time"
              );
          }
          else {
            this.$set(
              this.virtualClocks,
              colorIdx,
              ppt(Math.max(0, --this.game.clocks[colorIdx])).split(':')
            );
          }
        },
        1000
      );
    },
    // Update variables and storage after a move:
    processMove: function(move, data) {
      if (this.game.type == "import")
        // Shouldn't receive any messages in this mode:
        return;
      if (!data) data = {};
      const moveCol = this.vr.turn;
      const colorIdx = ["w", "b"].indexOf(moveCol);
      const nextIdx = 1 - colorIdx;
      const doProcessMove = () => {
        const origMovescount = this.game.moves.length;
        // The move is (about to be) played: stop clock
        clearInterval(this.clockUpdate);
        this.clockUpdate = null;
        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
          if (this.drawOffer == "received")
            // I refuse draw
            this.drawOffer = "";
          if (this.game.type == "live" && origMovescount >= 2) {
            this.game.clocks[colorIdx] += this.game.increment;
            // For a correct display in casqe of disconnected opponent:
            this.$set(
              this.virtualClocks,
              colorIdx,
              ppt(this.game.clocks[colorIdx]).split(':')
            );
            GameStorage.update(this.gameRef, {
              // It's not my turn anymore:
              initime: null
            });
          }
        }
        // Update current game object:
        playMove(move, this.vr);
        if (!data.score)
          // Received move, score is computed in BaseGame, but maybe not yet.
          // ==> Compute it here, although this is redundant (TODO)
          data.score = this.vr.getCurrentScore();
        if (data.score != "*") this.gameOver(data.score);
        this.game.moves.push(move);
        this.game.fen = this.vr.getFen();
        if (this.game.type == "corr") {
          // In corr games, just reset clock to mainTime:
          this.game.clocks[colorIdx] = extractTime(this.game.cadence).mainTime;
        }
        if (!V.IgnoreRepetition) {
          // If repetition detected, consider that a draw offer was received:
          const fenObj = this.vr.getFenForRepeat();
          this.repeat[fenObj] =
            !!this.repeat[fenObj]
              ? this.repeat[fenObj] + 1
              : 1;
          if (this.repeat[fenObj] >= 3) {
            if (this.vr.loseOnRepetition())
              this.gameOver(moveCol == "w" ? "0-1" : "1-0", "Repetition");
            else this.drawOffer = "threerep";
          }
          else if (this.drawOffer == "threerep") this.drawOffer = "";
        }
        if (!!this.game.mycolor && !data.receiveMyMove) {
          // NOTE: 'var' to see that variable outside this block
          var filtered_move = getFilteredMove(move);
        }
        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
          // Notify turn on MyGames page:
          this.notifyMyGames(
            "turn",
            {
              gid: this.gameRef,
              turn: this.vr.turn
            }
          );
        }
        // Since corr games are stored at only one location, update should be
        // done only by one player for each move:
        if (
          this.game.type == "live" &&
          !!this.game.mycolor &&
          moveCol != this.game.mycolor &&
          this.game.moves.length >= 2
        ) {
          // Receive a move: update initime
          this.game.initime = Date.now();
          GameStorage.update(this.gameRef, {
            // It's my turn now!
            initime: this.game.initime
          });
        }
        if (
          !!this.game.mycolor &&
          !data.receiveMyMove &&
          (this.game.type == "live" || moveCol == this.game.mycolor)
        ) {
          let drawCode = "";
          switch (this.drawOffer) {
            case "threerep":
              drawCode = "t";
              break;
            case "sent":
              drawCode = this.game.mycolor;
              break;
            case "received":
              drawCode = V.GetOppCol(this.game.mycolor);
              break;
          }
          if (this.game.type == "corr") {
            // corr: only move, fen and score
            this.updateCorrGame({
              fen: this.game.fen,
              move: {
                squares: filtered_move,
                idx: origMovescount
              },
              // Code "n" for "None" to force reset (otherwise it's ignored)
              drawOffer: drawCode || "n"
            });
          }
          else {
            const updateStorage = () => {
              GameStorage.update(this.gameRef, {
                fen: this.game.fen,
                move: filtered_move,
                moveIdx: origMovescount,
                clocks: this.game.clocks,
                drawOffer: drawCode
              });
            };
            // The active tab can update storage immediately
            if (this.focus) updateStorage();
            // Small random delay otherwise
            else setTimeout(updateStorage, 500 + 1000 * Math.random());
          }
        }
        // Send move ("newmove" event) to people in the room (if our turn)
        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
          let sendMove = {
            move: filtered_move,
            index: origMovescount,
            // color is required to check if this is my move
            // (if several tabs opened)
            color: moveCol,
            cancelDrawOffer: this.drawOffer == ""
          };
          if (this.game.type == "live")
            sendMove["clock"] = this.game.clocks[colorIdx];
          // (Live) Clocks will re-start when the opponent pingback arrive
          this.opponentGotMove = false;
          this.send("newmove", {data: sendMove});
          // If the opponent doesn't reply gotmove soon enough, re-send move:
          // Do this at most 2 times, because more would mean network issues,
          // opponent would then be expected to disconnect/reconnect.
          let counter = 1;
          const currentUrl = document.location.href;
          this.retrySendmove = setInterval(
            () => {
              if (
                counter >= 3 ||
                this.opponentGotMove ||
                document.location.href != currentUrl //page change
              ) {
                clearInterval(this.retrySendmove);
                return;
              }
              const oppsid = this.getOppsid();
              if (!oppsid)
                // Opponent is disconnected: he'll ask last state
                clearInterval(this.retrySendmove);
              else {
                this.send("newmove", { data: sendMove, target: oppsid });
                counter++;
              }
            },
            1500
          );
        }
        else
          // Not my move or I'm an observer: just start other player's clock
          this.re_setClocks();
      };
      if (
        this.game.type == "corr" &&
        moveCol == this.game.mycolor &&
        !data.receiveMyMove
      ) {
        let boardDiv = document.querySelector(".game");
        const afterSetScore = () => {
          doProcessMove();
          if (this.st.settings.gotonext && this.nextIds.length > 0)
            this.showNextGame();
          else {
            // The board might have been hidden:
            if (boardDiv.style.visibility == "hidden")
              boardDiv.style.visibility = "visible";
            if (data.score == "*") this.re_setClocks();
          }
        };
        if (!V.CorrConfirm) {
          afterSetScore();
          return;
        }
        let el = document.querySelector("#buttonsConfirm > .acceptBtn");
        // We may play several moves in a row: in case of, remove listener:
        let elClone = el.cloneNode(true);
        el.parentNode.replaceChild(elClone, el);
        elClone.addEventListener(
          "click",
          () => {
            document.getElementById("modalConfirm").checked = false;
            if (!!data.score && data.score != "*")
              // Set score first
              this.gameOver(data.score, null, afterSetScore);
            else afterSetScore();
          }
        );
        // PlayOnBoard is enough, and more appropriate for Synchrone Chess
        const arMove = (Array.isArray(move) ? move : [move]);
        for (let i = 0; i < arMove.length; i++)
          V.PlayOnBoard(this.vr.board, arMove[i]);
        const position = this.vr.getBaseFen();
        for (let i = arMove.length - 1; i >= 0; i--)
          V.UndoOnBoard(this.vr.board, arMove[i]);
        if (["all","byrow"].includes(V.ShowMoves)) {
          this.curDiag = getDiagram({
            position: position,
            orientation: V.CanFlip ? this.game.mycolor : "w"
          });
          document.querySelector("#confirmDiv > .card").style.width =
            boardDiv.offsetWidth + "px";
        }
        else {
          // Incomplete information: just ask confirmation
          // Hide the board, because otherwise it could reveal infos
          boardDiv.style.visibility = "hidden";
          this.moveNotation = getFullNotation(move);
        }
        document.getElementById("modalConfirm").checked = true;
      }
      else {
        // Normal situation
        if (!!data.score && data.score != "*")
          this.gameOver(data.score, null, doProcessMove);
        else doProcessMove();
      }
    },
    cancelMove: function() {
      let boardDiv = document.querySelector(".game");
      if (boardDiv.style.visibility == "hidden")
        boardDiv.style.visibility = "visible";
      document.getElementById("modalConfirm").checked = false;
      this.$refs["basegame"].cancelLastMove();
    },
    // In corr games, callback to change page only after score is set:
    gameOver: function(score, scoreMsg, callback) {
      this.game.score = score;
      if (!scoreMsg) scoreMsg = getScoreMessage(score, V.ReverseColors);
      this.game.scoreMsg = scoreMsg;
      document.getElementById("modalRules").checked = false;
      // Display result in a un-missable way:
      document.getElementById("modalScore").checked = true;
      this.$set(this.game, "scoreMsg", scoreMsg);
      const myIdx = this.game.players.findIndex(p => {
        return (
          p.sid == this.st.user.sid ||
          (!!p.name && p.id == this.st.user.id)
        );
      });
      if (myIdx >= 0) {
        // OK, I play in this game
        const scoreObj = {
          score: score,
          scoreMsg: scoreMsg
        };
        if (this.game.type == "live") {
          GameStorage.update(this.gameRef, scoreObj);
          // Notify myself locally if I'm elsewhere:
          if (!this.focus) {
            notify(
              "Game over",
              { body: score + " : " + scoreMsg }
            );
          }
          if (!!callback) callback();
        }
        else this.updateCorrGame(scoreObj, callback);
        // Notify the score to main Hall.
        // TODO: only one player (currently double send)
        this.send("result", { gid: this.game.id, score: score });
        // Also to MyGames page (TODO: doubled as well...)
        this.notifyMyGames(
          "score",
          {
            gid: this.gameRef,
            score: score
          }
        );
      }
      else if (!!callback) callback();
    }
  }
};
</script>

<style lang="sass" scoped>
#scoreDiv > .card, #rematchDiv > .card
  padding: 10px 0
  max-width: 430px

#rulesDiv > .card
  padding: 5px 0
  max-width: 50%
  max-height: 100%
  @media screen and (max-width: 1500px)
    max-width: 67%
  @media screen and (max-width: 1024px)
    max-width: 85%
  @media screen and (max-width: 767px)
    max-width: 100%

p.score-section
  margin: 0
  font-size: 1.3em
  span.score
    font-weight: bold

.connected
  background-color: lightgreen

#participants
  margin-left: 5px

.anonymous
  color: grey
  font-style: italic

#playersInfo > p
  margin: 0

@media screen and (max-width: 767px)
  .game
    width: 100%

#actions
  display: inline-block
  margin: 0

button
  display: inline-block
  margin: 0
  display: inline-flex
  img
    height: 22px
    display: flex
    @media screen and (max-width: 767px)
      height: 18px

#aboveBoard
  text-align: center

.user-bio
  display: inline
  font-size: 1.5rem
  @media screen and (max-width: 767px)
    font-size: 1.2rem
  padding: 0 3px

.variant-cadence
  padding-right: 10px

.variant-name
  font-weight: bold
  padding-right: 10px

span#nextGame
  background-color: #edda99
  cursor: pointer
  display: inline-block
  margin-right: 10px

span.separator
  display: inline-block
  margin: 0
  padding: 0
  width: 10px

span.time
  font-size: 2rem
  @media screen and (max-width: 767px)
    font-size: 1.5rem
  display: inline-block
  .time-left
    margin-left: 10px
  .time-right
    margin-left: 5px
  .time-separator
    margin-left: 5px
    position: relative
    top: -1px

span.yourturn
  color: #831B1B
  .time-separator
    animation: blink-animation 2s steps(3, start) infinite
@keyframes blink-animation
  to
    visibility: hidden

.split-names
  display: inline-block
  margin: 0 15px

#chatWrap > .card
  padding-top: 20px
  max-width: 767px
  border: none

#confirmDiv > .card
  max-width: 767px
  max-height: 100%

.draw-sent, .draw-sent:hover
  background-color: lightyellow

.draw-received, .draw-received:hover
  background-color: #73C6B6

.draw-threerep, .draw-threerep:hover
  background-color: #D2B4DE

.rematch-sent, .rematch-sent:hover
  background-color: lightyellow

.rematch-received, .rematch-received:hover
  background-color: #48C9B0

.somethingnew
  background-color: #D2B4DE

.diagram
  margin: 0 auto
  width: 100%

#buttonsConfirm
  margin: 0
  & > button > span
    width: 100%
    text-align: center

button.acceptBtn
  background-color: lightgreen
button.refuseBtn
  background-color: red

a#variantNameInGame
  color: var(--card-fore-color)
  text-align: center
  font-weight: bold
  font-size: calc(1rem * var(--heading-ratio))
  line-height: 1.2
  margin: calc(1.5 * var(--universal-margin))
</style>

<style lang="sass">
@import "@/styles/_rules.sass"
@import "@/styles/_board_squares_img.sass"
</style>