client/src/views/Hall.vue

   1 <template lang="pug">
   2 main
   3   input#modalInfo.modal(type="checkbox")
   4   div#infoDiv(
   5     role="dialog"
   6     data-checkbox="modalInfo"
   7   )
   8     .card.text-center
   9       label.modal-close(for="modalInfo")
  10       p(v-html="infoMessage")
  11   input#modalAccept.modal(type="checkbox")
  12   div#acceptDiv(role="dialog")
  13     .card
  14       p.text-center
  15         span.variantName {{ curChallToAccept.vname }}
  16         span {{ curChallToAccept.cadence }}
  17         span {{ st.tr["with"] + " " + curChallToAccept.from.name }}
  18       .diagram(
  19         v-if="!!curChallToAccept.fen"
  20         v-html="tchallDiag"
  21       )
  22       .button-group#buttonsTchall(:style="tchallButtonsMargin()")
  23         button.acceptBtn(@click="decisionChallenge(true)")
  24           span {{ st.tr["Accept challenge?"] }}
  25         button.refuseBtn(@click="decisionChallenge(false)")
  26           span {{ st.tr["Refuse"] }}
  27   input#modalNewgame.modal(
  28     type="checkbox"
  29     @change="cadenceFocusIfOpened($event)"
  30   )
  31   div#newgameDiv(
  32     role="dialog"
  33     data-checkbox="modalNewgame"
  34   )
  35     .card
  36       label#closeNewgame.modal-close(for="modalNewgame")
  37       div(@keyup.enter="issueNewChallenge()")
  38         fieldset
  39           label(for="selectVariant") {{ st.tr["Variant"] }} *
  40           select#selectVariant(
  41             @change="loadNewchallVariant(trySetNewchallDiag)"
  42             v-model="newchallenge.vid"
  43           )
  44             option(
  45               v-for="v in st.variants"
  46               :value="v.id"
  47               :selected="newchallenge.vid==v.id"
  48             )
  49               | {{ v.name }}
  50         fieldset
  51           label(for="cadence") {{ st.tr["Cadence"] }} *
  52           div#predefinedCadences
  53             button(type="button") 15+5
  54             button(type="button") 45+30
  55             button(type="button") 3d
  56             button(type="button") 7d
  57           input#cadence(
  58             type="text"
  59             v-model="newchallenge.cadence"
  60             placeholder="5+0, 1h+30s, 5d ..."
  61           )
  62         fieldset
  63           label(for="selectRandomLevel") {{ st.tr["Randomness"] }} *
  64           select#selectRandomLevel(v-model="newchallenge.randomness")
  65             option(value="0") {{ st.tr["Deterministic"] }}
  66             option(value="1") {{ st.tr["Symmetric random"] }}
  67             option(value="2") {{ st.tr["Asymmetric random"] }}
  68         fieldset
  69           label(for="memorizeChall") {{ st.tr["Memorize"] }}
  70           input#memorizeChall(
  71             type="checkbox"
  72             v-model="newchallenge.memorize"
  73           )
  74         fieldset(v-if="st.user.id > 0")
  75           label(for="selectPlayers") {{ st.tr["Play with"] }}
  76           select#selectPlayersInList(
  77             v-model="newchallenge.to"
  78             @change="changeChallTarget()"
  79           )
  80             option(value="")
  81             option(
  82               v-for="p in Object.values(people)"
  83               v-if="!!p.name"
  84               :value="p.name"
  85             )
  86               | {{ p.name }}
  87           input#selectPlayers(
  88             type="text"
  89             v-model="newchallenge.to"
  90           )
  91         fieldset(v-if="st.user.id > 0 && newchallenge.to.length > 0")
  92           input#inputFen(
  93             placeholder="FEN"
  94             @input="trySetNewchallDiag()"
  95             type="text"
  96             v-model="newchallenge.fen"
  97           )
  98         .diagram(v-html="newchallenge.diag")
  99       button(@click="issueNewChallenge()") {{ st.tr["Send challenge"] }}
 100   input#modalPeople.modal(
 101     type="checkbox"
 102     @click="resetSocialColor()"
 103   )
 104   div#peopleWrap(
 105     role="dialog"
 106     data-checkbox="modalPeople"
 107   )
 108     .card
 109       label.modal-close(for="modalPeople")
 110       #people
 111         #players
 112           p(
 113             v-for="sid in Object.keys(people)"
 114             v-if="!!people[sid].name"
 115           )
 116             span {{ people[sid].name }}
 117             button.player-action(
 118               v-if="isGamer(sid)"
 119               @click="watchGame(sid)"
 120             )
 121               | {{ st.tr["Observe"] }}
 122             button.player-action(
 123               v-else-if="isFocusedOnHall(sid)"
 124               @click="challenge(sid)"
 125             )
 126               | {{ st.tr["Challenge"] }}
 127           p.anonymous @nonymous ({{ anonymousCount() }})
 128         #chat
 129           Chat(
 130             ref="chatcomp"
 131             @mychat="processChat"
 132             :pastChats="[]"
 133           )
 134         .clearer
 135   .row
 136     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 137       .button-group
 138         button#peopleBtn(@click="openModalPeople()")
 139           | {{ st.tr["Who's there?"] }}
 140         button(@click="showNewchallengeForm()")
 141           | {{ st.tr["New game"] }}
 142   .row(v-if="presetChalls.length > 0")
 143     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 144       h4.text-center {{ st.tr["Preset challenges"] }}
 145       table
 146         thead
 147           tr
 148             th {{ st.tr["Variant"] }}
 149             th {{ st.tr["Cadence"] }}
 150             th {{ st.tr["Random?"] }}
 151             th
 152         tbody
 153           tr(
 154             v-for="pc in presetChalls"
 155             @click="newChallFromPreset(pc)"
 156           )
 157             td {{ pc.vname }}
 158             td {{ pc.cadence }}
 159             td(:class="getRandomnessClass(pc)")
 160             td.remove-preset(@click="removePresetChall($event, pc)")
 161               img(src="/images/icons/delete.svg")
 162   .row
 163     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 164       div#div2
 165         .button-group
 166           button.tabbtn#btnClive(@click="setDisplay('c','live',$event)")
 167             | {{ st.tr["Live challenges"] }}
 168           button.tabbtn#btnCcorr(@click="setDisplay('c','corr',$event)")
 169             | {{ st.tr["Correspondance challenges"] }}
 170         ChallengeList(
 171           v-show="cdisplay=='live'"
 172           :challenges="filterChallenges('live')"
 173           @click-challenge="clickChallenge"
 174         )
 175         ChallengeList(
 176           v-show="cdisplay=='corr'"
 177           :challenges="filterChallenges('corr')"
 178           @click-challenge="clickChallenge"
 179         )
 180       div#div3
 181         .button-group
 182           button.tabbtn#btnGlive(@click="setDisplay('g','live',$event)")
 183             | {{ st.tr["Live games"] }}
 184           button.tabbtn#btnGcorr(@click="setDisplay('g','corr',$event)")
 185             | {{ st.tr["Correspondance games"] }}
 186         GameList(
 187           v-show="gdisplay=='live'"
 188           :games="filterGames('live')"
 189           :showBoth="true"
 190           @show-game="showGame"
 191         )
 192         div(v-show="gdisplay=='corr'")
 193           GameList(
 194             :games="filterGames('corr')"
 195             :showBoth="true"
 196             @show-game="showGame"
 197           )
 198           button#loadMoreBtn(
 199             v-if="hasMore"
 200             @click="loadMoreCorr()"
 201           )
 202             | {{ st.tr["Load more"] }}
 203 </template>
 204
 205 <script>
 206 import { store } from "@/store";
 207 import { checkChallenge } from "@/data/challengeCheck";
 208 import { ArrayFun } from "@/utils/array";
 209 import { ajax } from "@/utils/ajax";
 210 import params from "@/parameters";
 211 import { getRandString, shuffle, randInt } from "@/utils/alea";
 212 import { getDiagram } from "@/utils/printDiagram";
 213 import Chat from "@/components/Chat.vue";
 214 import GameList from "@/components/GameList.vue";
 215 import ChallengeList from "@/components/ChallengeList.vue";
 216 import { GameStorage } from "@/utils/gameStorage";
 217 import { processModalClick } from "@/utils/modalClick";
 218 export default {
 219   name: "my-hall",
 220   components: {
 221     Chat,
 222     GameList,
 223     ChallengeList
 224   },
 225   data: function() {
 226     return {
 227       st: store.state,
 228       cdisplay: "live", //or corr
 229       gdisplay: "live",
 230       // timestamp of last showed (oldest) corr game:
 231       cursor: Number.MAX_SAFE_INTEGER,
 232       // hasMore == TRUE: a priori there could be more games to load
 233       hasMore: true,
 234       games: [],
 235       challenges: [],
 236       people: {},
 237       infoMessage: "",
 238       newchallenge: {
 239         fen: "",
 240         vid: parseInt(localStorage.getItem("vid")) || 0,
 241         to: "", //name of challenged player (if any)
 242         cadence: localStorage.getItem("cadence") || "",
 243         randomness: parseInt(localStorage.getItem("challRandomness")) || 2,
 244         // VariantRules object, stored to not interfere with
 245         // diagrams of targetted challenges:
 246         V: null,
 247         vname: "",
 248         diag: "", //visualizing FEN
 249         memorize: false //put settings in localStorage
 250       },
 251       tchallDiag: "",
 252       curChallToAccept: {from: {}},
 253       presetChalls: JSON.parse(localStorage.getItem("presetChalls") || "[]"),
 254       conn: null,
 255       connexionString: "",
 256       socketCloseListener: 0,
 257       // Related to (killing of) self multi-connects:
 258       newConnect: {},
 259       killed: {}
 260     };
 261   },
 262   watch: {
 263     // st.variants changes only once, at loading from [] to [...]
 264     "st.variants": function() {
 265       // Set potential challenges and games variant names:
 266       this.challenges.concat(this.games).forEach(o => {
 267         if (!o.vname) o.vname = this.getVname(o.vid);
 268       });
 269       if (!this.newchallenge.V && this.newchallenge.vid > 0)
 270         this.loadNewchallVariant();
 271     },
 272     $route: function(to, from) {
 273       if (to.path != "/") this.cleanBeforeDestroy();
 274     }
 275   },
 276   created: function() {
 277     document.addEventListener('visibilitychange', this.visibilityChange);
 278     window.addEventListener("beforeunload", this.cleanBeforeDestroy);
 279     if (this.st.variants.length > 0 && this.newchallenge.vid > 0)
 280       this.loadNewchallVariant();
 281     const my = this.st.user;
 282     const tmpId = getRandString();
 283     this.$set(
 284       this.people,
 285       my.sid,
 286       {
 287         id: my.id,
 288         name: my.name,
 289         tmpIds: {
 290           tmpId: { page: "/", focus: true }
 291         }
 292       }
 293     );
 294     const connectAndPoll = () => {
 295       this.send("connect");
 296       this.send("pollclientsandgamers");
 297     };
 298     // Initialize connection
 299     this.connexionString =
 300       params.socketUrl +
 301       "/?sid=" + this.st.user.sid +
 302       "&id=" + this.st.user.id +
 303       "&tmpId=" + tmpId +
 304       "&page=" +
 305       // Hall: path is "/" (TODO: could be hard-coded as well)
 306       encodeURIComponent(this.$route.path);
 307     this.conn = new WebSocket(this.connexionString);
 308     this.conn.onopen = connectAndPoll;
 309     this.conn.addEventListener("message", this.socketMessageListener);
 310     this.socketCloseListener = setInterval(
 311       () => {
 312         if (this.conn.readyState == 3) {
 313           this.conn.removeEventListener("message", this.socketMessageListener);
 314           this.conn = new WebSocket(this.connexionString);
 315           this.conn.addEventListener("message", this.socketMessageListener);
 316         }
 317       },
 318       1000
 319     );
 320   },
 321   mounted: function() {
 322     ["peopleWrap", "infoDiv", "newgameDiv"].forEach(eltName => {
 323       document.getElementById(eltName)
 324         .addEventListener("click", processModalClick);
 325     });
 326     document.querySelectorAll("#predefinedCadences > button").forEach(b => {
 327       b.addEventListener("click", () => {
 328         this.newchallenge.cadence = b.innerHTML;
 329       });
 330     });
 331     const dispCorr = this.$route.query["disp"];
 332     const showCtype =
 333       dispCorr || localStorage.getItem("type-challenges") || "live";
 334     const showGtype =
 335       dispCorr || localStorage.getItem("type-games") || "live";
 336     this.setDisplay('c', showCtype);
 337     this.setDisplay('g', showGtype);
 338     // Ask server for current corr games (all but mines)
 339     this.loadMoreCorr();
 340     // Also ask for corr challenges (open + sent by/to me)
 341     // List them all, because they are not supposed to be that many (TODO?)
 342     ajax(
 343       "/challenges",
 344       "GET",
 345       {
 346         data: { uid: this.st.user.id },
 347         success: (response) => {
 348           if (
 349             response.challenges.length > 0 &&
 350             this.challenges.length == 0 &&
 351             this.cdisplay == "live"
 352           ) {
 353             document
 354               .getElementById("btnCcorr")
 355               .classList.add("somethingnew");
 356           }
 357           // Gather all senders names, and then retrieve full identity:
 358           // (TODO [perf]: some might be online...)
 359           let names = {};
 360           response.challenges.forEach(c => {
 361             if (c.uid != this.st.user.id) names[c.uid] = "";
 362             else if (!!c.target && c.target != this.st.user.id)
 363               names[c.target] = "";
 364           });
 365           const addChallenges = () => {
 366             names[this.st.user.id] = this.st.user.name; //in case of
 367             this.challenges = this.challenges.concat(
 368               response.challenges.map(c => {
 369                 const from = { name: names[c.uid], id: c.uid }; //or just name
 370                 const type = this.classifyObject(c);
 371                 const vname = this.getVname(c.vid);
 372                 return Object.assign(
 373                   {},
 374                   {
 375                     type: type,
 376                     vname: vname,
 377                     from: from,
 378                     to: c.target ? names[c.target] : ""
 379                   },
 380                   c
 381                 );
 382               })
 383             );
 384           };
 385           if (Object.keys(names).length > 0) {
 386             ajax(
 387               "/users",
 388               "GET",
 389               {
 390                 data: { ids: Object.keys(names).join(",") },
 391                 success: (response2) => {
 392                   response2.users.forEach(u => {
 393                     names[u.id] = u.name;
 394                   });
 395                   addChallenges();
 396                 }
 397               }
 398             );
 399           } else addChallenges();
 400         }
 401       }
 402     );
 403   },
 404   beforeDestroy: function() {
 405     this.cleanBeforeDestroy();
 406   },
 407   methods: {
 408     cleanBeforeDestroy: function() {
 409       clearInterval(this.socketCloseListener);
 410       document.removeEventListener('visibilitychange', this.visibilityChange);
 411       window.removeEventListener("beforeunload", this.cleanBeforeDestroy);
 412       this.conn.removeEventListener("message", this.socketMessageListener);
 413       this.send("disconnect");
 414       this.conn = null;
 415     },
 416     getRandomnessClass: function(pc) {
 417       return {
 418         ["random-" + pc.randomness]: true
 419       };
 420     },
 421     openModalPeople: function() {
 422       window.doClick("modalPeople");
 423       document.getElementById("inputChat").focus();
 424     },
 425     anonymousCount: function() {
 426       let count = 0;
 427       Object.values(this.people).forEach(p => {
 428         // Do not cound people who did not send their identity yet:
 429         count += (!p.name && p.id === 0) ? 1 : 0;
 430       });
 431       return count;
 432     },
 433     visibilityChange: function() {
 434       // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
 435       this.send(
 436         document.visibilityState == "visible"
 437           ? "getfocus"
 438           : "losefocus"
 439       );
 440     },
 441     partialResetNewchallenge: function() {
 442       // Reset potential target and custom FEN:
 443       this.newchallenge.to = "";
 444       this.newchallenge.fen = "";
 445       this.newchallenge.diag = "";
 446       this.newchallenge.memorize = false;
 447     },
 448     showNewchallengeForm: function() {
 449       this.partialResetNewchallenge();
 450       window.doClick("modalNewgame");
 451     },
 452     addPresetChall: function(chall) {
 453       // Add only if not already existing:
 454       if (this.presetChalls.some(c =>
 455         c.vid == chall.vid &&
 456         c.cadence == chall.cadence &&
 457         c.randomness == chall.randomness
 458       )) {
 459         return;
 460       }
 461       const L = this.presetChalls.length;
 462       this.presetChalls.push({
 463         index: L,
 464         vid: chall.vid,
 465         vname: chall.vname, //redundant, but easier
 466         cadence: chall.cadence,
 467         randomness: chall.randomness
 468       });
 469       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 470     },
 471     removePresetChall: function(e, pchall) {
 472       e.stopPropagation();
 473       const pchallIdx = this.presetChalls.findIndex(pc => pc.index == pchall.index);
 474       this.presetChalls.splice(pchallIdx, 1);
 475       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 476     },
 477     tchallButtonsMargin: function() {
 478       if (!!this.curChallToAccept.fen) return { "margin-top": "10px" };
 479       return {};
 480     },
 481     changeChallTarget: function() {
 482       if (!this.newchallenge.to) {
 483         // Reset potential FEN + diagram
 484         this.newchallenge.fen = "";
 485         this.newchallenge.diag = "";
 486       }
 487     },
 488     cadenceFocusIfOpened: function() {
 489       if (event.target.checked)
 490         document.getElementById("cadence").focus();
 491     },
 492     send: function(code, obj) {
 493       if (!!this.conn) {
 494         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
 495       }
 496     },
 497     getVname: function(vid) {
 498       const variant = this.st.variants.find(v => v.id == vid);
 499       // this.st.variants might be uninitialized (variant == null)
 500       return variant ? variant.name : "";
 501     },
 502     filterChallenges: function(type) {
 503       return this.challenges.filter(c => c.type == type);
 504     },
 505     filterGames: function(type) {
 506       return this.games.filter(g => g.type == type);
 507     },
 508     classifyObject: function(o) {
 509       // o: challenge or game
 510       return o.cadence.indexOf("d") === -1 ? "live" : "corr";
 511     },
 512     setDisplay: function(letter, type, e) {
 513       this[letter + "display"] = type;
 514       localStorage.setItem(
 515         "type-" + (letter == "c" ? "challenges" : "games"),
 516         type
 517       );
 518       let elt = e
 519         ? e.target
 520         : document.getElementById("btn" + letter.toUpperCase() + type);
 521       elt.classList.add("active");
 522       elt.classList.remove("somethingnew"); //in case of
 523       if (!!elt.previousElementSibling)
 524         elt.previousElementSibling.classList.remove("active");
 525       else elt.nextElementSibling.classList.remove("active");
 526     },
 527     isGamer: function(sid) {
 528       return Object.values(this.people[sid].tmpIds)
 529         .some(v => v.focus && v.page.indexOf("/game/") >= 0);
 530     },
 531     isFocusedOnHall: function(sid) {
 532       return (
 533         // This is meant to challenge people, thus the next 2 conditions:
 534         this.st.user.id > 0 &&
 535         sid != this.st.user.sid &&
 536         Object.values(this.people[sid].tmpIds).some(v => v.focus && v.page == "/")
 537       );
 538     },
 539     challenge: function(sid) {
 540       this.partialResetNewchallenge();
 541       // Available, in Hall
 542       this.newchallenge.to = this.people[sid].name;
 543       // TODO: also store target sid to not re-search for it
 544       document.getElementById("modalPeople").checked = false;
 545       window.doClick("modalNewgame");
 546     },
 547     watchGame: function(sid) {
 548       // In some game, maybe playing maybe not: show a random one
 549       let gids = [];
 550       Object.values(this.people[sid].tmpIds).forEach(v => {
 551         if (v.focus) {
 552           const matchGid = v.page.match(/[a-zA-Z0-9]+$/);
 553           if (!!matchGid) gids.push(matchGid[0]);
 554         }
 555       });
 556       const gid = gids[Math.floor(Math.random() * gids.length)];
 557       const game = this.games.find(g => g.id == gid);
 558       if (!!game) this.showGame(game);
 559       else this.$router.push("/game/" + gid); //game vs. me
 560     },
 561     showGame: function(g) {
 562       // NOTE: we are an observer, since only games I don't play are shown here
 563       // ==> Moves sent by connected remote player(s) if live game
 564       this.$router.push("/game/" + g.id);
 565     },
 566     resetSocialColor: function() {
 567       // TODO: this is called twice, once on opening an once on closing
 568       document.getElementById("peopleBtn").classList.remove("somethingnew");
 569     },
 570     processChat: function(chat) {
 571       this.send("newchat", { data: chat });
 572     },
 573     getOppsid: function(c) {
 574       let oppsid = c.from.sid; //may not be defined if corr + offline opp
 575       if (!oppsid) {
 576         oppsid = Object.keys(this.people).find(
 577           sid => this.people[sid].id == c.from.id
 578         );
 579       }
 580       return oppsid;
 581     },
 582     // Messaging center:
 583     socketMessageListener: function(msg) {
 584       if (!this.conn) return;
 585       const data = JSON.parse(msg.data);
 586       switch (data.code) {
 587         case "pollclientsandgamers": {
 588           // TODO: shuffling and random filtering on server,
 589           // if the room is really crowded.
 590           Object.keys(data.sockIds).forEach(sid => {
 591             // TODO: test sid != user.sid was already done on server
 592             if (sid != this.st.user.sid) {
 593               // Pick a target tmpId (+page) at random:
 594               const pt = Object.values(data.sockIds[sid]);
 595               const randPage = pt[randInt(pt.length)].page;
 596               this.send(
 597                 "askidentity",
 598                 {
 599                   target: sid,
 600                   page: randPage
 601                 }
 602               );
 603             }
 604             if (!this.people[sid])
 605               // Do not set name or id: identity unknown yet
 606               this.people[sid] = { tmpIds: data.sockIds[sid] };
 607             else
 608               Object.assign(this.people[sid].tmpIds, data.sockIds[sid]);
 609             if (Object.values(data.sockIds[sid]).some(v => v.page == "/"))
 610               // Peer is in Hall
 611               this.send("askchallenges", { target: sid });
 612             Object.values(data.sockIds[sid]).forEach(v => {
 613               if (
 614                 v.page.indexOf("/game/") >= 0 &&
 615                 !v.page.match(/\/[0-9]+$/)
 616               ) {
 617                 // Peer is in Game: ask only if live game
 618                 this.send("askgame", { target: sid, page: v.page });
 619               }
 620             });
 621           });
 622           break;
 623         }
 624         case "connect":
 625         case "gconnect": {
 626           const page = data.page || "/";
 627           if (data.code == "connect") {
 628             // Ask challenges only on first connexion:
 629             if (!this.people[data.from])
 630               this.send("askchallenges", { target: data.from[0] });
 631           }
 632           // Ask game only if live:
 633           else if (!page.match(/\/[0-9]+$/))
 634             this.send("askgame", { target: data.from[0], page: page });
 635           if (!this.people[data.from]) {
 636             this.$set(
 637               this.people,
 638               data.from[0],
 639               {
 640                 tmpIds: {
 641                   [data.from[1]]: { page: page, focus: true }
 642                 }
 643               }
 644             );
 645             this.newConnect[data.from] = true; //for self multi-connects tests
 646             this.send("askidentity", { target: data.from[0], page: page });
 647           } else {
 648             this.people[data.from[0]].tmpIds[data.from[1]] =
 649               { page: page, focus: true };
 650             this.$forceUpdate(); //TODO: shouldn't be required
 651           }
 652           break;
 653         }
 654         case "disconnect":
 655         case "gdisconnect": {
 656           // If the user reloads the page twice very quickly (experienced with Firefox),
 657           // the first reload won't have time to connect but will trigger a "close" event anyway.
 658           // ==> Next check is required.
 659           if (!this.people[data.from[0]]) return;
 660           delete this.people[data.from[0]].tmpIds[data.from[1]];
 661           if (Object.keys(this.people[data.from[0]].tmpIds).length == 0)
 662             this.$delete(this.people, data.from[0]);
 663           else this.$forceUpdate(); //TODO: shouldn't be required
 664           if (data.code == "disconnect") {
 665             // Remove the live challenges sent by this player:
 666             ArrayFun.remove(
 667               this.challenges,
 668               c => c.type == "live" && c.from.sid == data.from[0],
 669               "all"
 670             );
 671           } else {
 672             // Remove the matching live game if now unreachable
 673             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
 674             // Corr games are always reachable:
 675             if (!gid.match(/^[0-9]+$/)) {
 676               // Live games are reachable as long as someone is on the game page
 677               if (Object.values(this.people).every(p =>
 678                 Object.values(p.tmpIds).every(v => v.page != data.page))
 679               ) {
 680                 ArrayFun.remove(this.games, g => g.id == gid);
 681               }
 682             }
 683           }
 684           break;
 685         }
 686         case "getfocus": {
 687           let player = this.people[data.from[0]];
 688           // If user reload a page, focus may arrive earlier than connect
 689           if (!!player) {
 690             player.tmpIds[data.from[1]].focus = true;
 691             this.$forceUpdate(); //TODO: shouldn't be required
 692           }
 693           break;
 694         }
 695         case "losefocus": {
 696           let player = this.people[data.from[0]];
 697           if (!!player) {
 698             player.tmpIds[data.from[1]].focus = false;
 699             this.$forceUpdate(); //TODO: shouldn't be required
 700           }
 701           break;
 702         }
 703         case "killed":
 704           // I logged in elsewhere:
 705           this.conn.removeEventListener("message", this.socketMessageListener);
 706           this.conn.removeEventListener("close", this.socketCloseListener);
 707           this.conn = null;
 708           alert(this.st.tr["New connexion detected: tab now offline"]);
 709           break;
 710         case "askidentity": {
 711           // Request for identification
 712           const me = {
 713             // Decompose to avoid revealing email
 714             name: this.st.user.name,
 715             sid: this.st.user.sid,
 716             id: this.st.user.id
 717           };
 718           this.send("identity", { data: me, target: data.from });
 719           break;
 720         }
 721         case "identity": {
 722           const user = data.data;
 723           let player = this.people[user.sid];
 724           // player.tmpIds is already set
 725           player.id = user.id;
 726           player.name = user.name;
 727           // TODO: this.$set(people, ...) fails. So forceUpdate.
 728           //       But this shouldn't be like that!
 729           this.$forceUpdate();
 730           // If I multi-connect, kill current connexion if no mark (I'm older)
 731           if (this.newConnect[user.sid]) {
 732             if (
 733               user.id > 0 &&
 734               user.id == this.st.user.id &&
 735               user.sid != this.st.user.sid &&
 736               !this.killed[this.st.user.sid]
 737             ) {
 738                 this.send("killme", { sid: this.st.user.sid });
 739                 this.killed[this.st.user.sid] = true;
 740             }
 741             delete this.newConnect[user.sid];
 742           }
 743           break;
 744         }
 745         case "askchallenges": {
 746           // Send my current live challenges (if any)
 747           const myChallenges = this.challenges
 748             .filter(c =>
 749               c.from.sid == this.st.user.sid && c.type == "live"
 750             )
 751             .map(c => {
 752               // NOTE: in principle, should only send targeted challenge to the target.
 753               // But we may not know yet the identity of the target (just name),
 754               // so cannot decide if data.from is the target or not.
 755               return {
 756                 id: c.id,
 757                 from: this.st.user.sid,
 758                 to: c.to,
 759                 randomness: c.randomness,
 760                 fen: c.fen,
 761                 vid: c.vid,
 762                 cadence: c.cadence,
 763                 added: c.added
 764               };
 765             });
 766           if (myChallenges.length > 0)
 767             this.send("challenges", { data: myChallenges, target: data.from });
 768           break;
 769         }
 770         case "challenges": //after "askchallenges"
 771           data.data.forEach(this.addChallenge);
 772           break;
 773         case "newchallenge":
 774           this.addChallenge(data.data);
 775           break;
 776         case "refusechallenge": {
 777           const cid = data.data;
 778           ArrayFun.remove(this.challenges, c => c.id == cid);
 779           alert(this.st.tr["Challenge declined"]);
 780           break;
 781         }
 782         case "deletechallenge_s": {
 783           // NOTE: the challenge(s) may be already removed
 784           const cref = data.data;
 785           if (!!cref.cid) ArrayFun.remove(this.challenges, c => c.id == cref.cid);
 786           else if (!!cref.sids) {
 787             cref.sids.forEach(s => {
 788               ArrayFun.remove(
 789                 this.challenges,
 790                 c => c.type == "live" && c.from.sid == s,
 791                 "all"
 792               );
 793             });
 794           }
 795           break;
 796         }
 797         case "game": // Individual request
 798         case "newgame": {
 799           const game = data.data;
 800           // Ignore games where I play (will go in MyGames page),
 801           // and also games that I already received.
 802           if (
 803             game.players.every(p =>
 804               p.sid != this.st.user.sid && p.id != this.st.user.id) &&
 805             this.games.findIndex(g => g.id == game.id) == -1
 806           ) {
 807             let newGame = game;
 808             newGame.type = this.classifyObject(game);
 809             newGame.vname = this.getVname(game.vid);
 810             if (!game.score)
 811               // New game from Hall
 812               newGame.score = "*";
 813             this.games.push(newGame);
 814             if (
 815               (newGame.type == "live" && this.gdisplay == "corr") ||
 816               (newGame.type == "corr" && this.gdisplay == "live")
 817             ) {
 818               document
 819                 .getElementById("btnG" + newGame.type)
 820                 .classList.add("somethingnew");
 821             }
 822           }
 823           break;
 824         }
 825         case "result": {
 826           let g = this.games.find(g => g.id == data.gid);
 827           if (!!g) g.score = data.score;
 828           break;
 829         }
 830         case "startgame": {
 831           // New game just started, I'm involved
 832           const gameInfo = data.data;
 833           if (this.classifyObject(gameInfo) == "live")
 834             this.startNewGame(gameInfo);
 835           else {
 836             this.infoMessage =
 837               this.st.tr["New correspondance game:"] + " " +
 838               "<a href='#/game/" + gameInfo.id + "'>" +
 839               "#/game/" + gameInfo.id + "</a>";
 840             document.getElementById("modalInfo").checked = true;
 841           }
 842           break;
 843         }
 844         case "newchat":
 845           this.$refs["chatcomp"].newChat(data.data);
 846           if (!document.getElementById("modalPeople").checked)
 847             document.getElementById("peopleBtn").classList.add("somethingnew");
 848           break;
 849       }
 850     },
 851     loadMoreCorr: function() {
 852       ajax(
 853         "/observedgames",
 854         "GET",
 855         {
 856           data: {
 857             uid: this.st.user.id,
 858             cursor: this.cursor
 859           },
 860           success: (res) => {
 861             const L = res.games.length;
 862             if (L > 0) {
 863               if (
 864                 this.cursor == Number.MAX_SAFE_INTEGER &&
 865                 this.games.length == 0 &&
 866                 this.gdisplay == "live"
 867               ) {
 868                 // First loading: show indicators
 869                 document
 870                   .getElementById("btnGcorr")
 871                   .classList.add("somethingnew");
 872               }
 873               this.cursor = res.games[L - 1].created;
 874               let moreGames = res.games.map(g => {
 875                 const vname = this.getVname(g.vid);
 876                 return Object.assign(
 877                   {},
 878                   g,
 879                   {
 880                     type: "corr",
 881                     vname: vname
 882                   }
 883                 );
 884               });
 885               this.games = this.games.concat(moreGames);
 886             } else this.hasMore = false;
 887           }
 888         }
 889       );
 890     },
 891     // Challenge lifecycle:
 892     addChallenge: function(chall) {
 893       // NOTE about next condition: see "askchallenges" case.
 894       if (
 895         !chall.to ||
 896         (this.people[chall.from].id > 0 &&
 897           (chall.from == this.st.user.sid || chall.to == this.st.user.name))
 898       ) {
 899         let newChall = Object.assign({}, chall);
 900         newChall.type = this.classifyObject(chall);
 901         newChall.randomness = chall.randomness;
 902         newChall.added = Date.now();
 903         let fromValues = Object.assign({}, this.people[chall.from]);
 904         delete fromValues["pages"]; //irrelevant in this context
 905         newChall.from = Object.assign({ sid: chall.from }, fromValues);
 906         newChall.vname = this.getVname(newChall.vid);
 907         this.challenges.push(newChall);
 908         if (
 909           (newChall.type == "live" && this.cdisplay == "corr") ||
 910           (newChall.type == "corr" && this.cdisplay == "live")
 911         ) {
 912           document
 913             .getElementById("btnC" + newChall.type)
 914             .classList.add("somethingnew");
 915         }
 916       }
 917     },
 918     loadNewchallVariant: async function(cb) {
 919       const vname = this.getVname(this.newchallenge.vid);
 920       await import("@/variants/" + vname + ".js")
 921       .then((vModule) => {
 922         window.V = vModule[vname + "Rules"];
 923         this.newchallenge.V = window.V;
 924         this.newchallenge.vname = vname;
 925         if (!!cb) cb();
 926       });
 927     },
 928     trySetNewchallDiag: function() {
 929       if (!this.newchallenge.fen) {
 930         this.newchallenge.diag = "";
 931         return;
 932       }
 933       // If vid > 0 then the variant is loaded (function above):
 934       window.V = this.newchallenge.V;
 935       if (
 936         this.newchallenge.vid > 0 &&
 937         !!this.newchallenge.fen &&
 938         V.IsGoodFen(this.newchallenge.fen)
 939       ) {
 940         const parsedFen = V.ParseFen(this.newchallenge.fen);
 941         this.newchallenge.diag = getDiagram({
 942           position: parsedFen.position,
 943           orientation: parsedFen.turn
 944         });
 945       } else this.newchallenge.diag = "";
 946     },
 947     newChallFromPreset(pchall) {
 948       this.partialResetNewchallenge();
 949       this.newchallenge.vid = pchall.vid;
 950       this.newchallenge.cadence = pchall.cadence;
 951       this.newchallenge.randomness = pchall.randomness;
 952       this.loadNewchallVariant(this.issueNewChallenge);
 953     },
 954     issueNewChallenge: async function() {
 955       if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
 956         this.newchallenge.cadence += "+0"; //assume minutes, no increment
 957       const ctype = this.classifyObject(this.newchallenge);
 958       // TODO: cadence still unchecked so ctype could be wrong...
 959       let error = "";
 960       if (!this.newchallenge.vid)
 961         error = this.st.tr["Please select a variant"];
 962       else if (ctype == "corr" && this.st.user.id <= 0)
 963         error = this.st.tr["Please log in to play correspondance games"];
 964       else if (!!this.newchallenge.to) {
 965         if (this.newchallenge.to == this.st.user.name)
 966           error = this.st.tr["Self-challenge is forbidden"];
 967         else if (
 968           ctype == "live" &&
 969           Object.values(this.people).every(p => p.name != this.newchallenge.to)
 970         ) {
 971           error = this.newchallenge.to + " " + this.st.tr["is not online"];
 972         }
 973       }
 974       if (error) {
 975         alert(error);
 976         return;
 977       }
 978       window.V = this.newchallenge.V;
 979       error = checkChallenge(this.newchallenge);
 980       if (error) {
 981         alert(error);
 982         return;
 983       }
 984       // NOTE: "from" information is not required here
 985       let chall = Object.assign({}, this.newchallenge);
 986       // Add only if not already issued (not counting target or FEN):
 987       if (this.challenges.some(c =>
 988         (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
 989         c.vid == chall.vid &&
 990         c.cadence == chall.cadence &&
 991         c.randomness == chall.randomness
 992       )) {
 993         alert(this.st.tr["Challenge already exists"]);
 994         return;
 995       }
 996       if (this.newchallenge.memorize) this.addPresetChall(this.newchallenge);
 997       delete chall["V"];
 998       delete chall["diag"];
 999       const finishAddChallenge = cid => {
1000         chall.id = cid || "c" + getRandString();
1001         const MAX_ALLOWED_CHALLS = 3;
1002         // Remove oldest challenge if 3 found: only 3 at a time of a given type
1003         let countMyChalls = 0;
1004         let challToDelIdx = 0;
1005         let oldestAdded = Number.MAX_SAFE_INTEGER;
1006         for (let i=0; i<this.challenges.length; i++) {
1007           const c = this.challenges[i];
1008           if (
1009             c.type == ctype &&
1010             (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id)
1011           ) {
1012             countMyChalls++;
1013             if (c.added < oldestAdded) {
1014               challToDelIdx = i;
1015               oldestAdded = c.added;
1016             }
1017           }
1018         }
1019         if (countMyChalls >= MAX_ALLOWED_CHALLS) {
1020           this.send(
1021             "deletechallenge_s",
1022             { data: { cid: this.challenges[challToDelIdx].id } }
1023           );
1024           if (ctype == "corr") {
1025             ajax(
1026               "/challenges",
1027               "DELETE",
1028               { data: { id: this.challenges[challToDelIdx].id } }
1029             );
1030           }
1031           this.challenges.splice(challToDelIdx, 1);
1032         }
1033         this.send("newchallenge", {
1034           data: Object.assign({ from: this.st.user.sid }, chall)
1035         });
1036         // Add new challenge:
1037         chall.from = {
1038           sid: this.st.user.sid,
1039           id: this.st.user.id,
1040           name: this.st.user.name
1041         };
1042         chall.added = Date.now();
1043         // NOTE: vname and type are redundant (can be deduced from cadence + vid)
1044         chall.type = ctype;
1045         chall.vname = this.newchallenge.vname;
1046         this.challenges.push(chall);
1047         // Remember cadence  + vid for quicker further challenges:
1048         localStorage.setItem("cadence", chall.cadence);
1049         localStorage.setItem("vid", chall.vid);
1050         localStorage.setItem("challRandomness", chall.randomness);
1051         document.getElementById("modalNewgame").checked = false;
1052         // Show the challenge if not on current display
1053         if (
1054           (ctype == "live" && this.cdisplay == "corr") ||
1055           (ctype == "corr" && this.cdisplay == "live")
1056         ) {
1057           this.setDisplay('c', ctype);
1058         }
1059       };
1060       if (ctype == "live") {
1061         // Live challenges have a random ID
1062         finishAddChallenge(null);
1063       } else {
1064         // Correspondance game: send challenge to server
1065         ajax(
1066           "/challenges",
1067           "POST",
1068           {
1069             data: { chall: chall },
1070             success: (response) => {
1071               finishAddChallenge(response.id);
1072             }
1073           }
1074         );
1075       }
1076     },
1077     // Callback function after a diagram was showed to accept
1078     // or refuse targetted challenge:
1079     decisionChallenge: function(accepted) {
1080       this.curChallToAccept.accepted = accepted;
1081       this.finishProcessingChallenge(this.curChallToAccept);
1082       document.getElementById("modalAccept").checked = false;
1083     },
1084     finishProcessingChallenge: function(c) {
1085       if (c.accepted) {
1086         c.seat = {
1087           sid: this.st.user.sid,
1088           id: this.st.user.id,
1089           name: this.st.user.name
1090         };
1091         this.launchGame(c);
1092         if (c.type == "live")
1093           // Remove all live challenges of both players
1094           this.send("deletechallenge_s", { data: { sids: [c.from.sid, c.seat.sid] } });
1095         else
1096           // Corr challenge: just remove the challenge
1097           this.send("deletechallenge_s", { data: { cid: c.id } });
1098       } else {
1099         const oppsid = this.getOppsid(c);
1100         if (!!oppsid)
1101           this.send("refusechallenge", { data: c.id, target: oppsid });
1102         if (c.type == "corr") {
1103           ajax(
1104             "/challenges",
1105             "DELETE",
1106             { data: { id: c.id } }
1107           );
1108         }
1109         this.send("deletechallenge_s", { data: { cid: c.id } });
1110       }
1111     },
1112     // TODO: if several players click same challenge at the same time: problem
1113     clickChallenge: async function(c) {
1114       const myChallenge =
1115         c.from.sid == this.st.user.sid || //live
1116         (this.st.user.id > 0 && c.from.id == this.st.user.id); //corr
1117       if (!myChallenge) {
1118         if (c.type == "corr" && this.st.user.id <= 0) {
1119           alert(this.st.tr["Please log in to accept corr challenges"]);
1120           return;
1121         }
1122         c.accepted = true;
1123         await import("@/variants/" + c.vname + ".js")
1124         .then((vModule) => {
1125           window.V = vModule[c.vname + "Rules"];
1126           if (!!c.to) {
1127             // c.to == this.st.user.name (connected)
1128             if (!!c.fen) {
1129               const parsedFen = V.ParseFen(c.fen);
1130               c.mycolor = V.GetOppCol(parsedFen.turn);
1131               this.tchallDiag = getDiagram({
1132                 position: parsedFen.position,
1133                 orientation: c.mycolor
1134               });
1135             }
1136             this.curChallToAccept = c;
1137             document.getElementById("modalAccept").checked = true;
1138           }
1139           else this.finishProcessingChallenge(c);
1140         });
1141       }
1142       else {
1143         // My challenge
1144         if (c.type == "corr") {
1145           ajax(
1146             "/challenges",
1147             "DELETE",
1148             { data: { id: c.id } }
1149           );
1150         }
1151         this.send("deletechallenge_s", { data: { cid: c.id } });
1152       }
1153       // In all cases, the challenge is consumed:
1154       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
1155     },
1156     // NOTE: when launching game, the challenge is already being deleted
1157     launchGame: function(c) {
1158       // White player index 0, black player index 1:
1159       const players =
1160         !!c.mycolor
1161           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
1162           : shuffle([c.from, c.seat]);
1163       // These game informations will be shared
1164       let gameInfo = {
1165         id: getRandString(),
1166         fen: c.fen || V.GenRandInitFen(c.randomness),
1167         randomness: c.randomness, //for rematch
1168         players: players,
1169         vid: c.vid,
1170         cadence: c.cadence
1171       };
1172       const notifyNewgame = () => {
1173         const oppsid = this.getOppsid(c);
1174         if (!!oppsid)
1175           // Opponent is online
1176           this.send("startgame", { data: gameInfo, target: oppsid });
1177         // If new corr game, notify Hall (except opponent and me)
1178         if (c.type == "corr") {
1179           this.send(
1180             "newgame",
1181             {
1182               data: gameInfo,
1183               excluded: [this.st.user.sid, oppsid]
1184             }
1185           );
1186         }
1187         // Notify MyGames page:
1188         this.send(
1189           "notifynewgame",
1190           {
1191             data: gameInfo,
1192             targets: gameInfo.players
1193           }
1194         );
1195         // NOTE: no need to send the game to the room, since I'll connect
1196         // on game just after, the main Hall will be notified.
1197       };
1198       if (c.type == "live") {
1199         notifyNewgame();
1200         this.startNewGame(gameInfo);
1201       } else {
1202         // corr: game only on server
1203         ajax(
1204           "/games",
1205           "POST",
1206           {
1207             // cid is useful to delete the challenge:
1208             data: {
1209               gameInfo: gameInfo,
1210               cid: c.id
1211             },
1212             success: (response) => {
1213               gameInfo.id = response.id;
1214               notifyNewgame();
1215               this.$router.push("/game/" + response.id);
1216             }
1217           }
1218         );
1219       }
1220     },
1221     // NOTE: for live games only (corr games start on the server)
1222     startNewGame: function(gameInfo) {
1223       const game = Object.assign(
1224         {},
1225         gameInfo,
1226         {
1227           // (other) Game infos: constant
1228           fenStart: gameInfo.fen,
1229           vname: this.getVname(gameInfo.vid),
1230           created: Date.now(),
1231           // Game state (including FEN): will be updated
1232           moves: [],
1233           clocks: [-1, -1], //-1 = unstarted
1234           score: "*"
1235         }
1236       );
1237       setTimeout(
1238         () => {
1239           GameStorage.add(game, (err) => {
1240             // If an error occurred, game is not added: a tab already
1241             // added the game. Maybe a focused one, maybe not.
1242             // We know for sure that it emitted the gong start sound.
1243             // ==> Do not play it again.
1244             if (!err && this.st.settings.sound)
1245               new Audio("/sounds/newgame.flac").play().catch(() => {});
1246             this.$router.push("/game/" + gameInfo.id);
1247           });
1248         },
1249         document.hidden ? 500 + 1000 * Math.random() : 0
1250       );
1251     }
1252   }
1253 };
1254 </script>
1255
1256 <style lang="sass" scoped>
1257 .active
1258   color: #42a983
1259
1260 #infoDiv > .card
1261   padding: 15px 0
1262   max-width: 430px
1263
1264 #newgameDiv > .card, #acceptDiv > .card
1265   max-width: 767px
1266   max-height: 100%
1267
1268 div#peopleWrap > .card
1269   max-height: 100%
1270
1271 @media screen and (min-width: 1281px)
1272   div#peopleWrap > .card
1273     max-width: 66.67%
1274
1275 @media screen and (max-width: 1280px)
1276   div#peopleWrap > .card
1277     max-width: 83.33%
1278
1279 @media screen and (max-width: 767px)
1280   div#peopleWrap > .card
1281     max-width: 100%
1282
1283 #players
1284   width: 50%
1285   position: relative
1286   float: left
1287
1288 #chat
1289   width: 50%
1290   float: left
1291   position: relative
1292
1293 @media screen and (max-width: 767px)
1294   #players, #chats
1295     width: 100%
1296
1297 #chat > .card
1298   max-width: 100%
1299   margin: 0;
1300   border: none;
1301
1302 #players > p
1303   margin-left: 5px
1304
1305 .anonymous
1306   font-style: italic
1307
1308 button.player-action
1309   margin-left: 32px
1310
1311 .somethingnew
1312   background-color: #c5fefe !important
1313
1314 .tabbtn
1315   background-color: #f9faee
1316
1317 button.acceptBtn
1318   background-color: lightgreen
1319 button.refuseBtn
1320   background-color: red
1321
1322 #buttonsTchall
1323   // margin-top set dynamically (depends if diagram showed or not)
1324   & > button > span
1325     width: 100%
1326     text-align: center
1327
1328 .variantName
1329   font-weight: bold
1330
1331 .diagram
1332   margin: 0 auto
1333   max-width: 400px
1334   // width: 100% required for Firefox
1335   width: 100%
1336
1337 #inputFen
1338   width: 100%
1339
1340 #div2, #div3
1341   margin-top: 15px
1342 @media screen and (max-width: 767px)
1343   #div2, #div3
1344     margin-top: 0
1345
1346 tr > td
1347   &.random-0
1348     background-color: #FF5733
1349   &.random-1
1350     background-color: #2B63B4
1351   &.random-2
1352     background-color: #33B42B
1353
1354 @media screen and (max-width: 767px)
1355   h4
1356     margin: 5px 0
1357
1358 button#loadMoreBtn
1359   display: block
1360   margin: 0 auto
1361
1362 td.remove-preset
1363   background-color: lightgrey
1364   text-align: center
1365   & > img
1366     height: 1em
1367 </style>