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 { notify } from "@/utils/notifications";
 209 import { ArrayFun } from "@/utils/array";
 210 import { ajax } from "@/utils/ajax";
 211 import params from "@/parameters";
 212 import { getRandString, shuffle, randInt } from "@/utils/alea";
 213 import { getDiagram } from "@/utils/printDiagram";
 214 import Chat from "@/components/Chat.vue";
 215 import GameList from "@/components/GameList.vue";
 216 import ChallengeList from "@/components/ChallengeList.vue";
 217 import { GameStorage } from "@/utils/gameStorage";
 218 import { processModalClick } from "@/utils/modalClick";
 219 export default {
 220   name: "my-hall",
 221   components: {
 222     Chat,
 223     GameList,
 224     ChallengeList
 225   },
 226   data: function() {
 227     return {
 228       st: store.state,
 229       cdisplay: "live", //or corr
 230       gdisplay: "live",
 231       // timestamp of last showed (oldest) corr game:
 232       cursor: Number.MAX_SAFE_INTEGER,
 233       // hasMore == TRUE: a priori there could be more games to load
 234       hasMore: true,
 235       games: [],
 236       challenges: [],
 237       people: {},
 238       infoMessage: "",
 239       newchallenge: {
 240         fen: "",
 241         vid: parseInt(localStorage.getItem("vid")) || 0,
 242         to: "", //name of challenged player (if any)
 243         cadence: localStorage.getItem("cadence") || "",
 244         randomness: parseInt(localStorage.getItem("challRandomness")) || 2,
 245         // VariantRules object, stored to not interfere with
 246         // diagrams of targetted challenges:
 247         V: null,
 248         vname: "",
 249         diag: "", //visualizing FEN
 250         memorize: false //put settings in localStorage
 251       },
 252       focus: true,
 253       tchallDiag: "",
 254       curChallToAccept: {from: {}},
 255       presetChalls: JSON.parse(localStorage.getItem("presetChalls") || "[]"),
 256       conn: null,
 257       connexionString: "",
 258       socketCloseListener: 0,
 259       // Related to (killing of) self multi-connects:
 260       newConnect: {},
 261       killed: {}
 262     };
 263   },
 264   watch: {
 265     // st.variants changes only once, at loading from [] to [...]
 266     "st.variants": function() {
 267       // Set potential challenges and games variant names:
 268       this.challenges.concat(this.games).forEach(o => {
 269         if (!o.vname) o.vname = this.getVname(o.vid);
 270       });
 271       if (!this.newchallenge.V && this.newchallenge.vid > 0)
 272         this.loadNewchallVariant();
 273     },
 274     $route: function(to, from) {
 275       if (to.path != "/") this.cleanBeforeDestroy();
 276     }
 277   },
 278   created: function() {
 279     document.addEventListener('visibilitychange', this.visibilityChange);
 280     window.addEventListener('focus', this.onFocus);
 281     window.addEventListener('blur', this.onBlur);
 282     window.addEventListener("beforeunload", this.cleanBeforeDestroy);
 283     if (this.st.variants.length > 0 && this.newchallenge.vid > 0)
 284       this.loadNewchallVariant();
 285     const my = this.st.user;
 286     const tmpId = getRandString();
 287     this.$set(
 288       this.people,
 289       my.sid,
 290       {
 291         id: my.id,
 292         name: my.name,
 293         tmpIds: {
 294           tmpId: { page: "/", focus: true }
 295         }
 296       }
 297     );
 298     const connectAndPoll = () => {
 299       this.send("connect");
 300       this.send("pollclientsandgamers");
 301     };
 302     // Initialize connection
 303     this.connexionString =
 304       params.socketUrl +
 305       "/?sid=" + this.st.user.sid +
 306       "&id=" + this.st.user.id +
 307       "&tmpId=" + tmpId +
 308       "&page=" +
 309       // Hall: path is "/" (TODO: could be hard-coded as well)
 310       encodeURIComponent(this.$route.path);
 311     this.conn = new WebSocket(this.connexionString);
 312     this.conn.onopen = connectAndPoll;
 313     this.conn.addEventListener("message", this.socketMessageListener);
 314     this.socketCloseListener = setInterval(
 315       () => {
 316         if (this.conn.readyState == 3) {
 317           this.conn.removeEventListener("message", this.socketMessageListener);
 318           this.conn = new WebSocket(this.connexionString);
 319           this.conn.addEventListener("message", this.socketMessageListener);
 320         }
 321       },
 322       1000
 323     );
 324   },
 325   mounted: function() {
 326     ["peopleWrap", "infoDiv", "newgameDiv"].forEach(eltName => {
 327       document.getElementById(eltName)
 328         .addEventListener("click", processModalClick);
 329     });
 330     document.querySelectorAll("#predefinedCadences > button").forEach(b => {
 331       b.addEventListener("click", () => {
 332         this.newchallenge.cadence = b.innerHTML;
 333       });
 334     });
 335     const dispCorr = this.$route.query["disp"];
 336     const showCtype =
 337       dispCorr || localStorage.getItem("type-challenges") || "live";
 338     const showGtype =
 339       dispCorr || localStorage.getItem("type-games") || "live";
 340     this.setDisplay('c', showCtype);
 341     this.setDisplay('g', showGtype);
 342     // Ask server for current corr games (all but mines)
 343     this.loadMoreCorr();
 344     // Also ask for corr challenges (open + sent by/to me)
 345     // List them all, because they are not supposed to be that many (TODO?)
 346     ajax(
 347       "/challenges",
 348       "GET",
 349       {
 350         data: { uid: this.st.user.id },
 351         success: (response) => {
 352           if (
 353             response.challenges.length > 0 &&
 354             this.challenges.length == 0 &&
 355             this.cdisplay == "live"
 356           ) {
 357             document
 358               .getElementById("btnCcorr")
 359               .classList.add("somethingnew");
 360           }
 361           // Gather all senders names, and then retrieve full identity:
 362           // (TODO [perf]: some might be online...)
 363           let names = {};
 364           response.challenges.forEach(c => {
 365             if (c.uid != this.st.user.id) names[c.uid] = "";
 366             else if (!!c.target && c.target != this.st.user.id)
 367               names[c.target] = "";
 368           });
 369           const addChallenges = () => {
 370             names[this.st.user.id] = this.st.user.name; //in case of
 371             this.challenges = this.challenges.concat(
 372               response.challenges.map(c => {
 373                 const from = { name: names[c.uid], id: c.uid }; //or just name
 374                 const type = this.classifyObject(c);
 375                 const vname = this.getVname(c.vid);
 376                 return Object.assign(
 377                   {},
 378                   {
 379                     type: type,
 380                     vname: vname,
 381                     from: from,
 382                     to: c.target ? names[c.target] : ""
 383                   },
 384                   c
 385                 );
 386               })
 387             );
 388           };
 389           if (Object.keys(names).length > 0) {
 390             ajax(
 391               "/users",
 392               "GET",
 393               {
 394                 data: { ids: Object.keys(names).join(",") },
 395                 success: (response2) => {
 396                   response2.users.forEach(u => {
 397                     names[u.id] = u.name;
 398                   });
 399                   addChallenges();
 400                 }
 401               }
 402             );
 403           } else addChallenges();
 404         }
 405       }
 406     );
 407   },
 408   beforeDestroy: function() {
 409     this.cleanBeforeDestroy();
 410   },
 411   methods: {
 412     cleanBeforeDestroy: function() {
 413       clearInterval(this.socketCloseListener);
 414       document.removeEventListener('visibilitychange', this.visibilityChange);
 415       window.removeEventListener('focus', this.onFocus);
 416       window.removeEventListener('blur', this.onBlur);
 417       window.removeEventListener("beforeunload", this.cleanBeforeDestroy);
 418       this.conn.removeEventListener("message", this.socketMessageListener);
 419       this.send("disconnect");
 420       this.conn = null;
 421     },
 422     getRandomnessClass: function(pc) {
 423       return {
 424         ["random-" + pc.randomness]: true
 425       };
 426     },
 427     openModalPeople: function() {
 428       window.doClick("modalPeople");
 429       document.getElementById("inputChat").focus();
 430     },
 431     anonymousCount: function() {
 432       let count = 0;
 433       Object.values(this.people).forEach(p => {
 434         // Do not cound people who did not send their identity yet:
 435         count += (!p.name && p.id === 0) ? 1 : 0;
 436       });
 437       return count;
 438     },
 439     visibilityChange: function() {
 440       // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
 441       this.focus = (document.visibilityState == "visible");
 442       this.send(this.focus ? "getfocus" : "losefocus");
 443     },
 444     onFocus: function() {
 445       this.focus = true;
 446       this.send("getfocus");
 447     },
 448     onBlur: function() {
 449       this.focus = false;
 450       this.send("losefocus");
 451     },
 452     partialResetNewchallenge: function() {
 453       // Reset potential target and custom FEN:
 454       this.newchallenge.to = "";
 455       this.newchallenge.fen = "";
 456       this.newchallenge.diag = "";
 457       this.newchallenge.memorize = false;
 458     },
 459     showNewchallengeForm: function() {
 460       this.partialResetNewchallenge();
 461       window.doClick("modalNewgame");
 462     },
 463     addPresetChall: function(chall) {
 464       // Add only if not already existing:
 465       if (this.presetChalls.some(c =>
 466         c.vid == chall.vid &&
 467         c.cadence == chall.cadence &&
 468         c.randomness == chall.randomness
 469       )) {
 470         return;
 471       }
 472       const L = this.presetChalls.length;
 473       this.presetChalls.push({
 474         index: L,
 475         vid: chall.vid,
 476         vname: chall.vname, //redundant, but easier
 477         cadence: chall.cadence,
 478         randomness: chall.randomness
 479       });
 480       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 481     },
 482     removePresetChall: function(e, pchall) {
 483       e.stopPropagation();
 484       const pchallIdx = this.presetChalls.findIndex(pc => pc.index == pchall.index);
 485       this.presetChalls.splice(pchallIdx, 1);
 486       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 487     },
 488     tchallButtonsMargin: function() {
 489       if (!!this.curChallToAccept.fen) return { "margin-top": "10px" };
 490       return {};
 491     },
 492     changeChallTarget: function() {
 493       if (!this.newchallenge.to) {
 494         // Reset potential FEN + diagram
 495         this.newchallenge.fen = "";
 496         this.newchallenge.diag = "";
 497       }
 498     },
 499     cadenceFocusIfOpened: function() {
 500       if (event.target.checked)
 501         document.getElementById("cadence").focus();
 502     },
 503     send: function(code, obj) {
 504       if (!!this.conn) {
 505         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
 506       }
 507     },
 508     getVname: function(vid) {
 509       const variant = this.st.variants.find(v => v.id == vid);
 510       // this.st.variants might be uninitialized (variant == null)
 511       return variant ? variant.name : "";
 512     },
 513     filterChallenges: function(type) {
 514       return this.challenges.filter(c => c.type == type);
 515     },
 516     filterGames: function(type) {
 517       return this.games.filter(g => g.type == type);
 518     },
 519     classifyObject: function(o) {
 520       // o: challenge or game
 521       return o.cadence.indexOf("d") === -1 ? "live" : "corr";
 522     },
 523     setDisplay: function(letter, type, e) {
 524       this[letter + "display"] = type;
 525       localStorage.setItem(
 526         "type-" + (letter == "c" ? "challenges" : "games"),
 527         type
 528       );
 529       let elt = e
 530         ? e.target
 531         : document.getElementById("btn" + letter.toUpperCase() + type);
 532       elt.classList.add("active");
 533       elt.classList.remove("somethingnew"); //in case of
 534       if (!!elt.previousElementSibling)
 535         elt.previousElementSibling.classList.remove("active");
 536       else elt.nextElementSibling.classList.remove("active");
 537     },
 538     isGamer: function(sid) {
 539       return Object.values(this.people[sid].tmpIds)
 540         .some(v => v.focus && v.page.indexOf("/game/") >= 0);
 541     },
 542     isFocusedOnHall: function(sid) {
 543       return (
 544         // This is meant to challenge people, thus the next 2 conditions:
 545         this.st.user.id > 0 &&
 546         sid != this.st.user.sid &&
 547         Object.values(this.people[sid].tmpIds).some(v => v.focus && v.page == "/")
 548       );
 549     },
 550     challenge: function(sid) {
 551       this.partialResetNewchallenge();
 552       // Available, in Hall
 553       this.newchallenge.to = this.people[sid].name;
 554       // TODO: also store target sid to not re-search for it
 555       document.getElementById("modalPeople").checked = false;
 556       window.doClick("modalNewgame");
 557     },
 558     watchGame: function(sid) {
 559       // In some game, maybe playing maybe not: show a random one
 560       let gids = [];
 561       Object.values(this.people[sid].tmpIds).forEach(v => {
 562         if (v.focus) {
 563           const matchGid = v.page.match(/[a-zA-Z0-9]+$/);
 564           if (!!matchGid) gids.push(matchGid[0]);
 565         }
 566       });
 567       const gid = gids[Math.floor(Math.random() * gids.length)];
 568       const game = this.games.find(g => g.id == gid);
 569       if (!!game) this.showGame(game);
 570       else this.$router.push("/game/" + gid); //game vs. me
 571     },
 572     showGame: function(g) {
 573       // NOTE: we are an observer, since only games I don't play are shown here
 574       // ==> Moves sent by connected remote player(s) if live game
 575       this.$router.push("/game/" + g.id);
 576     },
 577     resetSocialColor: function() {
 578       // TODO: this is called twice, once on opening an once on closing
 579       document.getElementById("peopleBtn").classList.remove("somethingnew");
 580     },
 581     processChat: function(chat) {
 582       this.send("newchat", { data: chat });
 583     },
 584     getOppsid: function(c) {
 585       let oppsid = c.from.sid; //may not be defined if corr + offline opp
 586       if (!oppsid) {
 587         oppsid = Object.keys(this.people).find(
 588           sid => this.people[sid].id == c.from.id
 589         );
 590       }
 591       return oppsid;
 592     },
 593     // Messaging center:
 594     socketMessageListener: function(msg) {
 595       if (!this.conn) return;
 596       const data = JSON.parse(msg.data);
 597       switch (data.code) {
 598         case "pollclientsandgamers": {
 599           // TODO: shuffling and random filtering on server,
 600           // if the room is really crowded.
 601           Object.keys(data.sockIds).forEach(sid => {
 602             if (sid != this.st.user.sid) {
 603               // Pick a target tmpId (+page) at random:
 604               const pt = Object.values(data.sockIds[sid]);
 605               const randPage = pt[randInt(pt.length)].page;
 606               this.send(
 607                 "askidentity",
 608                 {
 609                   target: sid,
 610                   page: randPage
 611                 }
 612               );
 613             }
 614             if (!this.people[sid])
 615               // Do not set name or id: identity unknown yet
 616               this.people[sid] = { tmpIds: data.sockIds[sid] };
 617             else
 618               Object.assign(this.people[sid].tmpIds, data.sockIds[sid]);
 619             if (Object.values(data.sockIds[sid]).some(v => v.page == "/"))
 620               // Peer is in Hall
 621               this.send("askchallenges", { target: sid });
 622             Object.values(data.sockIds[sid]).forEach(v => {
 623               if (
 624                 v.page.indexOf("/game/") >= 0 &&
 625                 !v.page.match(/\/[0-9]+$/)
 626               ) {
 627                 // Peer is in Game: ask only if live game
 628                 this.send("askgame", { target: sid, page: v.page });
 629               }
 630             });
 631           });
 632           break;
 633         }
 634         case "connect":
 635         case "gconnect": {
 636           const page = data.page || "/";
 637           if (data.code == "connect") {
 638             // Ask challenges only on first connexion:
 639             if (!this.people[data.from])
 640               this.send("askchallenges", { target: data.from[0] });
 641           }
 642           // Ask game only if live:
 643           else if (!page.match(/\/[0-9]+$/))
 644             this.send("askgame", { target: data.from[0], page: page });
 645           if (!this.people[data.from]) {
 646             this.$set(
 647               this.people,
 648               data.from[0],
 649               {
 650                 tmpIds: {
 651                   [data.from[1]]: { page: page, focus: true }
 652                 }
 653               }
 654             );
 655             this.newConnect[data.from] = true; //for self multi-connects tests
 656             this.send("askidentity", { target: data.from[0], page: page });
 657           } else {
 658             this.people[data.from[0]].tmpIds[data.from[1]] =
 659               { page: page, focus: true };
 660             this.$forceUpdate(); //TODO: shouldn't be required
 661           }
 662           break;
 663         }
 664         case "disconnect":
 665         case "gdisconnect": {
 666           // If the user reloads the page twice very quickly (experienced with Firefox),
 667           // the first reload won't have time to connect but will trigger a "close" event anyway.
 668           // ==> Next check is required.
 669           if (!this.people[data.from[0]]) return;
 670           delete this.people[data.from[0]].tmpIds[data.from[1]];
 671           if (Object.keys(this.people[data.from[0]].tmpIds).length == 0)
 672             this.$delete(this.people, data.from[0]);
 673           else this.$forceUpdate(); //TODO: shouldn't be required
 674           if (data.code == "disconnect") {
 675             // Remove the live challenges sent by this player:
 676             ArrayFun.remove(
 677               this.challenges,
 678               c => c.type == "live" && c.from.sid == data.from[0],
 679               "all"
 680             );
 681           } else {
 682             // Remove the matching live game if now unreachable
 683             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
 684             // Corr games are always reachable:
 685             if (!gid.match(/^[0-9]+$/)) {
 686               // Live games are reachable as long as someone is on the game page
 687               if (Object.values(this.people).every(p =>
 688                 Object.values(p.tmpIds).every(v => v.page != data.page))
 689               ) {
 690                 ArrayFun.remove(this.games, g => g.id == gid);
 691               }
 692             }
 693           }
 694           break;
 695         }
 696         case "getfocus": {
 697           let player = this.people[data.from[0]];
 698           // If user reload a page, focus may arrive earlier than connect
 699           if (!!player) {
 700             player.tmpIds[data.from[1]].focus = true;
 701             this.$forceUpdate(); //TODO: shouldn't be required
 702           }
 703           break;
 704         }
 705         case "losefocus": {
 706           let player = this.people[data.from[0]];
 707           if (!!player) {
 708             player.tmpIds[data.from[1]].focus = false;
 709             this.$forceUpdate(); //TODO: shouldn't be required
 710           }
 711           break;
 712         }
 713         case "killed":
 714           // I logged in elsewhere:
 715           this.conn.removeEventListener("message", this.socketMessageListener);
 716           this.conn.removeEventListener("close", this.socketCloseListener);
 717           this.conn = null;
 718           alert(this.st.tr["New connexion detected: tab now offline"]);
 719           break;
 720         case "askidentity": {
 721           // Request for identification
 722           const me = {
 723             // Decompose to avoid revealing email
 724             name: this.st.user.name,
 725             sid: this.st.user.sid,
 726             id: this.st.user.id
 727           };
 728           this.send("identity", { data: me, target: data.from });
 729           break;
 730         }
 731         case "identity": {
 732           const user = data.data;
 733           let player = this.people[user.sid];
 734           // player.tmpIds is already set
 735           player.id = user.id;
 736           player.name = user.name;
 737           // TODO: this.$set(people, ...) fails. So forceUpdate.
 738           //       But this shouldn't be like that!
 739           this.$forceUpdate();
 740           // If I multi-connect, kill current connexion if no mark (I'm older)
 741           if (this.newConnect[user.sid]) {
 742             if (
 743               user.id > 0 &&
 744               user.id == this.st.user.id &&
 745               user.sid != this.st.user.sid &&
 746               !this.killed[this.st.user.sid]
 747             ) {
 748                 this.send("killme", { sid: this.st.user.sid });
 749                 this.killed[this.st.user.sid] = true;
 750             }
 751             delete this.newConnect[user.sid];
 752           }
 753           break;
 754         }
 755         case "askchallenges": {
 756           // Send my current live challenges (if any)
 757           const myChallenges = this.challenges
 758             .filter(c =>
 759               c.from.sid == this.st.user.sid && c.type == "live"
 760             )
 761             .map(c => {
 762               // NOTE: in principle, should only send targeted challenge to the target.
 763               // But we may not know yet the identity of the target (just name),
 764               // so cannot decide if data.from is the target or not.
 765               return {
 766                 id: c.id,
 767                 from: this.st.user.sid,
 768                 to: c.to,
 769                 randomness: c.randomness,
 770                 fen: c.fen,
 771                 vid: c.vid,
 772                 cadence: c.cadence,
 773                 added: c.added
 774               };
 775             });
 776           if (myChallenges.length > 0)
 777             this.send("challenges", { data: myChallenges, target: data.from });
 778           break;
 779         }
 780         case "challenges": //after "askchallenges"
 781           data.data.forEach(this.addChallenge);
 782           break;
 783         case "newchallenge":
 784           this.addChallenge(data.data);
 785           break;
 786         case "refusechallenge": {
 787           const cid = data.data;
 788           ArrayFun.remove(this.challenges, c => c.id == cid);
 789           alert(this.st.tr["Challenge declined"]);
 790           break;
 791         }
 792         case "deletechallenge_s": {
 793           // NOTE: the challenge(s) may be already removed
 794           const cref = data.data;
 795           if (!!cref.cid) ArrayFun.remove(this.challenges, c => c.id == cref.cid);
 796           else if (!!cref.sids) {
 797             cref.sids.forEach(s => {
 798               ArrayFun.remove(
 799                 this.challenges,
 800                 c => c.type == "live" && c.from.sid == s,
 801                 "all"
 802               );
 803             });
 804           }
 805           break;
 806         }
 807         case "game": // Individual request
 808         case "newgame": {
 809           const game = data.data;
 810           // Ignore games where I play (will go in MyGames page),
 811           // and also games that I already received.
 812           if (
 813             game.players.every(p =>
 814               p.sid != this.st.user.sid && p.id != this.st.user.id) &&
 815             this.games.findIndex(g => g.id == game.id) == -1
 816           ) {
 817             let newGame = game;
 818             newGame.type = this.classifyObject(game);
 819             newGame.vname = this.getVname(game.vid);
 820             if (!game.score)
 821               // New game from Hall
 822               newGame.score = "*";
 823             this.games.push(newGame);
 824             if (
 825               (newGame.type == "live" && this.gdisplay == "corr") ||
 826               (newGame.type == "corr" && this.gdisplay == "live")
 827             ) {
 828               document
 829                 .getElementById("btnG" + newGame.type)
 830                 .classList.add("somethingnew");
 831             }
 832           }
 833           break;
 834         }
 835         case "result": {
 836           let g = this.games.find(g => g.id == data.gid);
 837           if (!!g) g.score = data.score;
 838           break;
 839         }
 840         case "startgame": {
 841           // New game just started, I'm involved
 842           const gameInfo = data.data;
 843           if (this.classifyObject(gameInfo) == "live")
 844             this.startNewGame(gameInfo);
 845           else {
 846             this.infoMessage =
 847               this.st.tr["New correspondance game:"] + " " +
 848               "<a href='#/game/" + gameInfo.id + "'>" +
 849               "#/game/" + gameInfo.id + "</a>";
 850             document.getElementById("modalInfo").checked = true;
 851           }
 852           break;
 853         }
 854         case "newchat":
 855           this.$refs["chatcomp"].newChat(data.data);
 856           if (!document.getElementById("modalPeople").checked)
 857             document.getElementById("peopleBtn").classList.add("somethingnew");
 858           break;
 859       }
 860     },
 861     loadMoreCorr: function() {
 862       ajax(
 863         "/observedgames",
 864         "GET",
 865         {
 866           data: {
 867             uid: this.st.user.id,
 868             cursor: this.cursor
 869           },
 870           success: (res) => {
 871             const L = res.games.length;
 872             if (L > 0) {
 873               if (
 874                 this.cursor == Number.MAX_SAFE_INTEGER &&
 875                 this.games.length == 0 &&
 876                 this.gdisplay == "live"
 877               ) {
 878                 // First loading: show indicators
 879                 document
 880                   .getElementById("btnGcorr")
 881                   .classList.add("somethingnew");
 882               }
 883               this.cursor = res.games[L - 1].created;
 884               let moreGames = res.games.map(g => {
 885                 const vname = this.getVname(g.vid);
 886                 return Object.assign(
 887                   {},
 888                   g,
 889                   {
 890                     type: "corr",
 891                     vname: vname
 892                   }
 893                 );
 894               });
 895               this.games = this.games.concat(moreGames);
 896             } else this.hasMore = false;
 897           }
 898         }
 899       );
 900     },
 901     // Challenge lifecycle:
 902     addChallenge: function(chall) {
 903       // NOTE about next condition: see "askchallenges" case.
 904       if (
 905         !chall.to ||
 906         (this.people[chall.from].id > 0 &&
 907           (chall.from == this.st.user.sid || chall.to == this.st.user.name))
 908       ) {
 909         let newChall = Object.assign({}, chall);
 910         newChall.type = this.classifyObject(chall);
 911         newChall.randomness = chall.randomness;
 912         newChall.added = Date.now();
 913         let fromValues = Object.assign({}, this.people[chall.from]);
 914         delete fromValues["pages"]; //irrelevant in this context
 915         newChall.from = Object.assign({ sid: chall.from }, fromValues);
 916         newChall.vname = this.getVname(newChall.vid);
 917         this.challenges.push(newChall);
 918         if (
 919           (newChall.type == "live" && this.cdisplay == "corr") ||
 920           (newChall.type == "corr" && this.cdisplay == "live")
 921         ) {
 922           document
 923             .getElementById("btnC" + newChall.type)
 924             .classList.add("somethingnew");
 925         }
 926       }
 927     },
 928     loadNewchallVariant: async function(cb) {
 929       const vname = this.getVname(this.newchallenge.vid);
 930       await import("@/variants/" + vname + ".js")
 931       .then((vModule) => {
 932         window.V = vModule[vname + "Rules"];
 933         this.newchallenge.V = window.V;
 934         this.newchallenge.vname = vname;
 935         if (!!cb) cb();
 936       });
 937     },
 938     trySetNewchallDiag: function() {
 939       if (!this.newchallenge.fen) {
 940         this.newchallenge.diag = "";
 941         return;
 942       }
 943       // If vid > 0 then the variant is loaded (function above):
 944       window.V = this.newchallenge.V;
 945       if (
 946         this.newchallenge.vid > 0 &&
 947         !!this.newchallenge.fen &&
 948         V.IsGoodFen(this.newchallenge.fen)
 949       ) {
 950         const parsedFen = V.ParseFen(this.newchallenge.fen);
 951         this.newchallenge.diag = getDiagram({
 952           position: parsedFen.position,
 953           orientation: parsedFen.turn
 954         });
 955       } else this.newchallenge.diag = "";
 956     },
 957     newChallFromPreset(pchall) {
 958       this.partialResetNewchallenge();
 959       this.newchallenge.vid = pchall.vid;
 960       this.newchallenge.cadence = pchall.cadence;
 961       this.newchallenge.randomness = pchall.randomness;
 962       this.loadNewchallVariant(this.issueNewChallenge);
 963     },
 964     issueNewChallenge: async function() {
 965       if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
 966         this.newchallenge.cadence += "+0"; //assume minutes, no increment
 967       const ctype = this.classifyObject(this.newchallenge);
 968       // TODO: cadence still unchecked so ctype could be wrong...
 969       let error = "";
 970       if (!this.newchallenge.vid)
 971         error = this.st.tr["Please select a variant"];
 972       else if (ctype == "corr" && this.st.user.id <= 0)
 973         error = this.st.tr["Please log in to play correspondance games"];
 974       else if (!!this.newchallenge.to) {
 975         if (this.newchallenge.to == this.st.user.name)
 976           error = this.st.tr["Self-challenge is forbidden"];
 977         else if (
 978           ctype == "live" &&
 979           Object.values(this.people).every(p => p.name != this.newchallenge.to)
 980         ) {
 981           error = this.newchallenge.to + " " + this.st.tr["is not online"];
 982         }
 983       }
 984       if (error) {
 985         alert(error);
 986         return;
 987       }
 988       window.V = this.newchallenge.V;
 989       error = checkChallenge(this.newchallenge);
 990       if (error) {
 991         alert(error);
 992         return;
 993       }
 994       // NOTE: "from" information is not required here
 995       let chall = Object.assign({}, this.newchallenge);
 996       // Add only if not already issued (not counting target or FEN):
 997       if (this.challenges.some(c =>
 998         (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
 999         c.vid == chall.vid &&
1000         c.cadence == chall.cadence &&
1001         c.randomness == chall.randomness
1002       )) {
1003         alert(this.st.tr["Challenge already exists"]);
1004         return;
1005       }
1006       if (this.newchallenge.memorize) this.addPresetChall(this.newchallenge);
1007       delete chall["V"];
1008       delete chall["diag"];
1009       const finishAddChallenge = cid => {
1010         chall.id = cid || "c" + getRandString();
1011         const MAX_ALLOWED_CHALLS = 3;
1012         // Remove oldest challenge if 3 found: only 3 at a time of a given type
1013         let countMyChalls = 0;
1014         let challToDelIdx = 0;
1015         let oldestAdded = Number.MAX_SAFE_INTEGER;
1016         for (let i=0; i<this.challenges.length; i++) {
1017           const c = this.challenges[i];
1018           if (
1019             c.type == ctype &&
1020             (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id)
1021           ) {
1022             countMyChalls++;
1023             if (c.added < oldestAdded) {
1024               challToDelIdx = i;
1025               oldestAdded = c.added;
1026             }
1027           }
1028         }
1029         if (countMyChalls >= MAX_ALLOWED_CHALLS) {
1030           this.send(
1031             "deletechallenge_s",
1032             { data: { cid: this.challenges[challToDelIdx].id } }
1033           );
1034           if (ctype == "corr") {
1035             ajax(
1036               "/challenges",
1037               "DELETE",
1038               { data: { id: this.challenges[challToDelIdx].id } }
1039             );
1040           }
1041           this.challenges.splice(challToDelIdx, 1);
1042         }
1043         this.send("newchallenge", {
1044           data: Object.assign({ from: this.st.user.sid }, chall)
1045         });
1046         // Add new challenge:
1047         chall.from = {
1048           sid: this.st.user.sid,
1049           id: this.st.user.id,
1050           name: this.st.user.name
1051         };
1052         chall.added = Date.now();
1053         // NOTE: vname and type are redundant (can be deduced from cadence + vid)
1054         chall.type = ctype;
1055         chall.vname = this.newchallenge.vname;
1056         this.challenges.push(chall);
1057         // Remember cadence  + vid for quicker further challenges:
1058         localStorage.setItem("cadence", chall.cadence);
1059         localStorage.setItem("vid", chall.vid);
1060         localStorage.setItem("challRandomness", chall.randomness);
1061         document.getElementById("modalNewgame").checked = false;
1062         // Show the challenge if not on current display
1063         if (
1064           (ctype == "live" && this.cdisplay == "corr") ||
1065           (ctype == "corr" && this.cdisplay == "live")
1066         ) {
1067           this.setDisplay('c', ctype);
1068         }
1069       };
1070       if (ctype == "live") {
1071         // Live challenges have a random ID
1072         finishAddChallenge(null);
1073       } else {
1074         // Correspondance game: send challenge to server
1075         ajax(
1076           "/challenges",
1077           "POST",
1078           {
1079             data: { chall: chall },
1080             success: (response) => {
1081               finishAddChallenge(response.id);
1082             }
1083           }
1084         );
1085       }
1086     },
1087     // Callback function after a diagram was showed to accept
1088     // or refuse targetted challenge:
1089     decisionChallenge: function(accepted) {
1090       this.curChallToAccept.accepted = accepted;
1091       this.finishProcessingChallenge(this.curChallToAccept);
1092       document.getElementById("modalAccept").checked = false;
1093     },
1094     finishProcessingChallenge: function(c) {
1095       if (c.accepted) {
1096         c.seat = {
1097           sid: this.st.user.sid,
1098           id: this.st.user.id,
1099           name: this.st.user.name
1100         };
1101         this.launchGame(c);
1102         if (c.type == "live")
1103           // Remove all live challenges of both players
1104           this.send("deletechallenge_s", { data: { sids: [c.from.sid, c.seat.sid] } });
1105         else
1106           // Corr challenge: just remove the challenge
1107           this.send("deletechallenge_s", { data: { cid: c.id } });
1108       } else {
1109         const oppsid = this.getOppsid(c);
1110         if (!!oppsid)
1111           this.send("refusechallenge", { data: c.id, target: oppsid });
1112         if (c.type == "corr") {
1113           ajax(
1114             "/challenges",
1115             "DELETE",
1116             { data: { id: c.id } }
1117           );
1118         }
1119         this.send("deletechallenge_s", { data: { cid: c.id } });
1120       }
1121     },
1122     // TODO: if several players click same challenge at the same time: problem
1123     clickChallenge: async function(c) {
1124       const myChallenge =
1125         c.from.sid == this.st.user.sid || //live
1126         (this.st.user.id > 0 && c.from.id == this.st.user.id); //corr
1127       if (!myChallenge) {
1128         if (c.type == "corr" && this.st.user.id <= 0) {
1129           alert(this.st.tr["Please log in to accept corr challenges"]);
1130           return;
1131         }
1132         c.accepted = true;
1133         await import("@/variants/" + c.vname + ".js")
1134         .then((vModule) => {
1135           window.V = vModule[c.vname + "Rules"];
1136           if (!!c.to) {
1137             // c.to == this.st.user.name (connected)
1138             if (!!c.fen) {
1139               const parsedFen = V.ParseFen(c.fen);
1140               c.mycolor = V.GetOppCol(parsedFen.turn);
1141               this.tchallDiag = getDiagram({
1142                 position: parsedFen.position,
1143                 orientation: c.mycolor
1144               });
1145             }
1146             this.curChallToAccept = c;
1147             document.getElementById("modalAccept").checked = true;
1148           }
1149           else this.finishProcessingChallenge(c);
1150         });
1151       }
1152       else {
1153         // My challenge
1154         if (c.type == "corr") {
1155           ajax(
1156             "/challenges",
1157             "DELETE",
1158             { data: { id: c.id } }
1159           );
1160         }
1161         this.send("deletechallenge_s", { data: { cid: c.id } });
1162       }
1163       // In all cases, the challenge is consumed:
1164       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
1165     },
1166     // NOTE: when launching game, the challenge is already being deleted
1167     launchGame: function(c) {
1168       // White player index 0, black player index 1:
1169       const players =
1170         !!c.mycolor
1171           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
1172           : shuffle([c.from, c.seat]);
1173       // These game informations will be shared
1174       let gameInfo = {
1175         id: getRandString(),
1176         fen: c.fen || V.GenRandInitFen(c.randomness),
1177         randomness: c.randomness, //for rematch
1178         players: players,
1179         vid: c.vid,
1180         cadence: c.cadence
1181       };
1182       const notifyNewgame = () => {
1183         const oppsid = this.getOppsid(c);
1184         if (!!oppsid)
1185           // Opponent is online
1186           this.send("startgame", { data: gameInfo, target: oppsid });
1187         // If new corr game, notify Hall (except opponent and me)
1188         if (c.type == "corr") {
1189           this.send(
1190             "newgame",
1191             {
1192               data: gameInfo,
1193               excluded: [this.st.user.sid, oppsid]
1194             }
1195           );
1196         }
1197         // Notify MyGames page:
1198         this.send(
1199           "notifynewgame",
1200           {
1201             data: gameInfo,
1202             targets: gameInfo.players
1203           }
1204         );
1205         // NOTE: no need to send the game to the room, since I'll connect
1206         // on game just after, the main Hall will be notified.
1207       };
1208       if (c.type == "live") {
1209         notifyNewgame();
1210         this.startNewGame(gameInfo);
1211       } else {
1212         // corr: game only on server
1213         ajax(
1214           "/games",
1215           "POST",
1216           {
1217             // cid is useful to delete the challenge:
1218             data: {
1219               gameInfo: gameInfo,
1220               cid: c.id
1221             },
1222             success: (response) => {
1223               gameInfo.id = response.id;
1224               notifyNewgame();
1225               this.$router.push("/game/" + response.id);
1226             }
1227           }
1228         );
1229       }
1230     },
1231     // NOTE: for live games only (corr games start on the server)
1232     startNewGame: function(gameInfo) {
1233       const game = Object.assign(
1234         {},
1235         gameInfo,
1236         {
1237           // (other) Game infos: constant
1238           fenStart: gameInfo.fen,
1239           vname: this.getVname(gameInfo.vid),
1240           created: Date.now(),
1241           // Game state (including FEN): will be updated
1242           moves: [],
1243           clocks: [-1, -1], //-1 = unstarted
1244           chats: [],
1245           score: "*"
1246         }
1247       );
1248       setTimeout(
1249         () => {
1250           const myIdx = (game.players[0].sid == this.st.user.sid ? 0 : 1);
1251           GameStorage.add(game, (err) => {
1252             // If an error occurred, game is not added: a tab already
1253             // added the game. Maybe a focused one, maybe not.
1254             // We know for sure that it emitted the gong start sound.
1255             // ==> Do not play it again.
1256             if (!err && this.st.settings.sound)
1257               new Audio("/sounds/newgame.flac").play().catch(() => {});
1258             if (!this.focus) {
1259               notify(
1260                 "New live game",
1261                 { body: "vs " + game.players[1-myIdx].name || "@nonymous" }
1262               );
1263             }
1264             this.$router.push("/game/" + gameInfo.id);
1265           });
1266         },
1267         this.focus ? 500 + 1000 * Math.random() : 0
1268       );
1269     }
1270   }
1271 };
1272 </script>
1273
1274 <style lang="sass" scoped>
1275 .active
1276   color: #42a983
1277
1278 #infoDiv > .card
1279   padding: 15px 0
1280   max-width: 430px
1281
1282 #newgameDiv > .card, #acceptDiv > .card
1283   max-width: 767px
1284   max-height: 100%
1285
1286 div#peopleWrap > .card
1287   max-height: 100%
1288
1289 @media screen and (min-width: 1281px)
1290   div#peopleWrap > .card
1291     max-width: 66.67%
1292
1293 @media screen and (max-width: 1280px)
1294   div#peopleWrap > .card
1295     max-width: 83.33%
1296
1297 @media screen and (max-width: 767px)
1298   div#peopleWrap > .card
1299     max-width: 100%
1300
1301 #players
1302   width: 50%
1303   position: relative
1304   float: left
1305
1306 #chat
1307   width: 50%
1308   float: left
1309   position: relative
1310
1311 @media screen and (max-width: 767px)
1312   #players, #chats
1313     width: 100%
1314
1315 #chat > .card
1316   max-width: 100%
1317   margin: 0;
1318   border: none;
1319
1320 #players > p
1321   margin-left: 5px
1322
1323 .anonymous
1324   font-style: italic
1325
1326 button.player-action
1327   margin-left: 32px
1328
1329 .somethingnew
1330   background-color: #c5fefe !important
1331
1332 .tabbtn
1333   background-color: #f9faee
1334
1335 button.acceptBtn
1336   background-color: lightgreen
1337 button.refuseBtn
1338   background-color: red
1339
1340 #buttonsTchall
1341   // margin-top set dynamically (depends if diagram showed or not)
1342   & > button > span
1343     width: 100%
1344     text-align: center
1345
1346 .variantName
1347   font-weight: bold
1348
1349 .diagram
1350   margin: 0 auto
1351   max-width: 400px
1352   // width: 100% required for Firefox
1353   width: 100%
1354
1355 #inputFen
1356   width: 100%
1357
1358 #div2, #div3
1359   margin-top: 15px
1360 @media screen and (max-width: 767px)
1361   #div2, #div3
1362     margin-top: 0
1363
1364 tr > td
1365   &.random-0
1366     background-color: #FF5733
1367   &.random-1
1368     background-color: #2B63B4
1369   &.random-2
1370     background-color: #33B42B
1371
1372 @media screen and (max-width: 767px)
1373   h4
1374     margin: 5px 0
1375
1376 button#loadMoreBtn
1377   display: block
1378   margin: 0 auto
1379
1380 td.remove-preset
1381   background-color: lightgrey
1382   text-align: center
1383   & > img
1384     height: 1em
1385 </style>