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="toggleSocialColor()"
 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(onClick="window.doClick('modalPeople')")
 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           :show-both="true"
 190           @show-game="showGame"
 191         )
 192         div(v-show="gdisplay=='corr'")
 193           GameList(
 194             :games="filterGames('corr')"
 195             :show-both="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     };
 262   },
 263   watch: {
 264     // st.variants changes only once, at loading from [] to [...]
 265     "st.variants": function() {
 266       // Set potential challenges and games variant names:
 267       this.challenges.concat(this.games).forEach(o => {
 268         if (!o.vname) o.vname = this.getVname(o.vid);
 269       });
 270       if (!this.newchallenge.V && this.newchallenge.vid > 0)
 271         this.loadNewchallVariant();
 272     },
 273     $route: function(to, from) {
 274       if (to.path != "/") this.cleanBeforeDestroy();
 275     }
 276   },
 277   created: function() {
 278     document.addEventListener('visibilitychange', this.visibilityChange);
 279     window.addEventListener('focus', this.onFocus);
 280     window.addEventListener('blur', this.onBlur);
 281     window.addEventListener("beforeunload", this.cleanBeforeDestroy);
 282     if (this.st.variants.length > 0 && this.newchallenge.vid > 0)
 283       this.loadNewchallVariant();
 284     const my = this.st.user;
 285     const tmpId = getRandString();
 286     this.$set(
 287       this.people,
 288       my.sid,
 289       {
 290         id: my.id,
 291         name: my.name,
 292         tmpIds: {
 293           tmpId: { page: "/", focus: true }
 294         }
 295       }
 296     );
 297     const connectAndPoll = () => {
 298       this.send("connect");
 299       this.send("pollclientsandgamers");
 300     };
 301     // Initialize connection
 302     this.connexionString =
 303       params.socketUrl +
 304       "/?sid=" + this.st.user.sid +
 305       "&id=" + this.st.user.id +
 306       "&tmpId=" + tmpId +
 307       "&page=" +
 308       // Hall: path is "/" (TODO: could be hard-coded as well)
 309       encodeURIComponent(this.$route.path);
 310     this.conn = new WebSocket(this.connexionString);
 311     this.conn.onopen = connectAndPoll;
 312     this.conn.addEventListener("message", this.socketMessageListener);
 313     this.socketCloseListener = setInterval(
 314       () => {
 315         if (this.conn.readyState == 3) {
 316           this.conn.removeEventListener("message", this.socketMessageListener);
 317           this.conn = new WebSocket(this.connexionString);
 318           this.conn.addEventListener("message", this.socketMessageListener);
 319         }
 320       },
 321       1000
 322     );
 323   },
 324   mounted: function() {
 325     document.getElementById("peopleWrap")
 326       .addEventListener("click", (e) => {
 327         processModalClick(e, () => {
 328           this.toggleSocialColor("close")
 329         });
 330       });
 331     ["infoDiv", "newgameDiv"].forEach(eltName => {
 332       document.getElementById(eltName)
 333         .addEventListener("click", processModalClick);
 334     });
 335     document.querySelectorAll("#predefinedCadences > button").forEach(b => {
 336       b.addEventListener("click", () => {
 337         this.newchallenge.cadence = b.innerHTML;
 338       });
 339     });
 340     const dispCorr = this.$route.query["disp"];
 341     const showCtype =
 342       dispCorr || localStorage.getItem("type-challenges") || "live";
 343     const showGtype =
 344       dispCorr || localStorage.getItem("type-games") || "live";
 345     this.setDisplay('c', showCtype);
 346     this.setDisplay('g', showGtype);
 347     // Ask server for current corr games (all but mines)
 348     this.loadMoreCorr();
 349     // Also ask for corr challenges (open + sent by/to me)
 350     // List them all, because they are not supposed to be that many (TODO?)
 351     ajax(
 352       "/challenges",
 353       "GET",
 354       {
 355         data: { uid: this.st.user.id },
 356         success: (response) => {
 357           if (
 358             response.challenges.length > 0 &&
 359             this.challenges.length == 0 &&
 360             this.cdisplay == "live"
 361           ) {
 362             document
 363               .getElementById("btnCcorr")
 364               .classList.add("somethingnew");
 365           }
 366           // Gather all senders names, and then retrieve full identity:
 367           // (TODO [perf]: some might be online...)
 368           let names = {};
 369           response.challenges.forEach(c => {
 370             if (c.uid != this.st.user.id) names[c.uid] = "";
 371             else if (!!c.target && c.target != this.st.user.id)
 372               names[c.target] = "";
 373           });
 374           const addChallenges = () => {
 375             names[this.st.user.id] = this.st.user.name; //in case of
 376             this.challenges = this.challenges.concat(
 377               response.challenges.map(c => {
 378                 const from = { name: names[c.uid], id: c.uid }; //or just name
 379                 const type = this.classifyObject(c);
 380                 const vname = this.getVname(c.vid);
 381                 return Object.assign(
 382                   {},
 383                   {
 384                     type: type,
 385                     vname: vname,
 386                     from: from,
 387                     to: c.target ? names[c.target] : ""
 388                   },
 389                   c
 390                 );
 391               })
 392             );
 393           };
 394           if (Object.keys(names).length > 0) {
 395             ajax(
 396               "/users",
 397               "GET",
 398               {
 399                 data: { ids: Object.keys(names).join(",") },
 400                 success: (response2) => {
 401                   response2.users.forEach(u => {
 402                     names[u.id] = u.name;
 403                   });
 404                   addChallenges();
 405                 }
 406               }
 407             );
 408           } else addChallenges();
 409         }
 410       }
 411     );
 412   },
 413   beforeDestroy: function() {
 414     this.cleanBeforeDestroy();
 415   },
 416   methods: {
 417     cleanBeforeDestroy: function() {
 418       clearInterval(this.socketCloseListener);
 419       document.removeEventListener('visibilitychange', this.visibilityChange);
 420       window.removeEventListener('focus', this.onFocus);
 421       window.removeEventListener('blur', this.onBlur);
 422       window.removeEventListener("beforeunload", this.cleanBeforeDestroy);
 423       this.conn.removeEventListener("message", this.socketMessageListener);
 424       this.send("disconnect");
 425       this.conn = null;
 426     },
 427     getRandomnessClass: function(pc) {
 428       return {
 429         ["random-" + pc.randomness]: true
 430       };
 431     },
 432     anonymousCount: function() {
 433       let count = 0;
 434       Object.values(this.people).forEach(p => {
 435         // Do not cound people who did not send their identity yet:
 436         count += (!p.name && p.id === 0) ? 1 : 0;
 437       });
 438       return count;
 439     },
 440     visibilityChange: function() {
 441       // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
 442       this.focus = (document.visibilityState == "visible");
 443       this.send(this.focus ? "getfocus" : "losefocus");
 444     },
 445     onFocus: function() {
 446       this.focus = true;
 447       this.send("getfocus");
 448     },
 449     onBlur: function() {
 450       this.focus = false;
 451       this.send("losefocus");
 452     },
 453     partialResetNewchallenge: function() {
 454       // Reset potential target and custom FEN:
 455       this.newchallenge.to = "";
 456       this.newchallenge.fen = "";
 457       this.newchallenge.diag = "";
 458       this.newchallenge.memorize = false;
 459     },
 460     showNewchallengeForm: function() {
 461       this.partialResetNewchallenge();
 462       window.doClick("modalNewgame");
 463     },
 464     addPresetChall: function(chall) {
 465       // Add only if not already existing:
 466       if (this.presetChalls.some(c =>
 467         c.vid == chall.vid &&
 468         c.cadence == chall.cadence &&
 469         c.randomness == chall.randomness
 470       )) {
 471         return;
 472       }
 473       const L = this.presetChalls.length;
 474       this.presetChalls.push({
 475         index: L,
 476         vid: chall.vid,
 477         vname: chall.vname, //redundant, but easier
 478         cadence: chall.cadence,
 479         randomness: chall.randomness
 480       });
 481       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 482     },
 483     removePresetChall: function(e, pchall) {
 484       e.stopPropagation();
 485       const pchallIdx =
 486         this.presetChalls.findIndex(pc => pc.index == pchall.index);
 487       this.presetChalls.splice(pchallIdx, 1);
 488       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 489     },
 490     tchallButtonsMargin: function() {
 491       if (!!this.curChallToAccept.fen) return { "margin-top": "10px" };
 492       return {};
 493     },
 494     changeChallTarget: function() {
 495       if (!this.newchallenge.to) {
 496         // Reset potential FEN + diagram
 497         this.newchallenge.fen = "";
 498         this.newchallenge.diag = "";
 499       }
 500     },
 501     cadenceFocusIfOpened: function() {
 502       if (event.target.checked)
 503         document.getElementById("cadence").focus();
 504     },
 505     send: function(code, obj) {
 506       if (!!this.conn && this.conn.readyState == 1) {
 507         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
 508       }
 509     },
 510     getVname: function(vid) {
 511       const variant = this.st.variants.find(v => v.id == vid);
 512       // this.st.variants might be uninitialized (variant == null)
 513       return variant ? variant.name : "";
 514     },
 515     filterChallenges: function(type) {
 516       return this.challenges.filter(c => c.type == type);
 517     },
 518     filterGames: function(type) {
 519       return this.games.filter(g => g.type == type);
 520     },
 521     // o: challenge or game
 522     classifyObject: function(o) {
 523       // Consider imports as live games (TODO)
 524       if (!!o.id && !!o.id.toString().match(/^i/)) return "live";
 525       return o.cadence.indexOf("d") === -1 ? "live" : "corr";
 526     },
 527     setDisplay: function(letter, type, e) {
 528       this[letter + "display"] = type;
 529       localStorage.setItem(
 530         "type-" + (letter == "c" ? "challenges" : "games"),
 531         type
 532       );
 533       let elt = e
 534         ? e.target
 535         : document.getElementById("btn" + letter.toUpperCase() + type);
 536       elt.classList.add("active");
 537       elt.classList.remove("somethingnew"); //in case of
 538       if (!!elt.previousElementSibling)
 539         elt.previousElementSibling.classList.remove("active");
 540       else elt.nextElementSibling.classList.remove("active");
 541     },
 542     isGamer: function(sid) {
 543       return Object.values(this.people[sid].tmpIds)
 544         .some(v => v.focus && v.page.indexOf("/game/") >= 0);
 545     },
 546     isFocusedOnHall: function(sid) {
 547       return (
 548         // This is meant to challenge people, thus the next 2 conditions:
 549         this.st.user.id > 0 &&
 550         sid != this.st.user.sid &&
 551         Object.values(this.people[sid].tmpIds)
 552           .some(v => v.focus && v.page == "/")
 553       );
 554     },
 555     challenge: function(sid) {
 556       this.partialResetNewchallenge();
 557       // Available, in Hall
 558       this.newchallenge.to = this.people[sid].name;
 559       // TODO: also store target sid to not re-search for it
 560       document.getElementById("modalPeople").checked = false;
 561       window.doClick("modalNewgame");
 562     },
 563     watchGame: function(sid) {
 564       // In some game, maybe playing maybe not: show a random one
 565       let gids = [];
 566       Object.values(this.people[sid].tmpIds).forEach(v => {
 567         if (v.focus) {
 568           const matchGid = v.page.match(/[a-zA-Z0-9]+$/);
 569           if (!!matchGid) gids.push(matchGid[0]);
 570         }
 571       });
 572       const gid = gids[Math.floor(Math.random() * gids.length)];
 573       const game = this.games.find(g => g.id == gid);
 574       if (!!game) this.showGame(game);
 575       else this.$router.push("/game/" + gid); //game vs. me
 576     },
 577     showGame: function(g) {
 578       // NOTE: we are an observer, since only games I don't play are shown here
 579       // ==> Moves sent by connected remote player(s) if live game
 580       this.$router.push("/game/" + g.id);
 581     },
 582     toggleSocialColor: function(action) {
 583       if (!action && document.getElementById("modalPeople").checked)
 584         document.getElementById("inputChat").focus();
 585       else
 586         document.getElementById("peopleBtn").classList.remove("somethingnew");
 587     },
 588     processChat: function(chat) {
 589       this.send("newchat", { data: chat });
 590     },
 591     getOppsid: function(c) {
 592       let oppsid = c.from.sid; //may not be defined if corr + offline opp
 593       if (!oppsid) {
 594         oppsid = Object.keys(this.people).find(
 595           sid => this.people[sid].id == c.from.id
 596         );
 597       }
 598       return oppsid;
 599     },
 600     // Messaging center:
 601     socketMessageListener: function(msg) {
 602       if (!this.conn) return;
 603       const data = JSON.parse(msg.data);
 604       switch (data.code) {
 605         case "pollclientsandgamers": {
 606           // TODO: shuffling and random filtering on server,
 607           // if the room is really crowded.
 608           Object.keys(data.sockIds).forEach(sid => {
 609             if (sid != this.st.user.sid) {
 610               // Pick a target tmpId (+page) at random:
 611               const pt = Object.values(data.sockIds[sid]);
 612               const randPage = pt[randInt(pt.length)].page;
 613               this.send(
 614                 "askidentity",
 615                 {
 616                   target: sid,
 617                   page: randPage
 618                 }
 619               );
 620             }
 621             if (!this.people[sid])
 622               // Do not set name or id: identity unknown yet
 623               this.people[sid] = { tmpIds: data.sockIds[sid] };
 624             else
 625               Object.assign(this.people[sid].tmpIds, data.sockIds[sid]);
 626             if (Object.values(data.sockIds[sid]).some(v => v.page == "/"))
 627               // Peer is in Hall
 628               this.send("askchallenges", { target: sid });
 629             Object.values(data.sockIds[sid]).forEach(v => {
 630               if (
 631                 v.page.indexOf("/game/") >= 0 &&
 632                 !v.page.match(/\/[0-9]+$/)
 633               ) {
 634                 // Peer is in Game: ask only if live game
 635                 this.send("askgame", { target: sid, page: v.page });
 636               }
 637             });
 638           });
 639           break;
 640         }
 641         case "connect":
 642         case "gconnect": {
 643           const page = data.page || "/";
 644           if (data.code == "connect") {
 645             // Ask challenges only on first connexion:
 646             if (!this.people[data.from[0]])
 647               this.send("askchallenges", { target: data.from[0] });
 648           }
 649           // Ask game only if live:
 650           else if (!page.match(/\/[0-9]+$/))
 651             this.send("askgame", { target: data.from[0], page: page });
 652           if (!this.people[data.from[0]]) {
 653             this.$set(
 654               this.people,
 655               data.from[0],
 656               {
 657                 tmpIds: {
 658                   [data.from[1]]: { page: page, focus: true }
 659                 }
 660               }
 661             );
 662             // For self multi-connects tests:
 663             this.newConnect[data.from[0]] = true;
 664             this.send("askidentity", { target: data.from[0], page: page });
 665           } else {
 666             this.people[data.from[0]].tmpIds[data.from[1]] =
 667               { page: page, focus: true };
 668             this.$forceUpdate(); //TODO: shouldn't be required
 669           }
 670           break;
 671         }
 672         case "disconnect":
 673         case "gdisconnect": {
 674           // If the user reloads the page twice very quickly
 675           // (experienced with Firefox), the first reload won't have time to
 676           // connect but will trigger a "close" event anyway.
 677           // ==> Next check is required.
 678           if (!this.people[data.from[0]]) return;
 679           delete this.people[data.from[0]].tmpIds[data.from[1]];
 680           if (Object.keys(this.people[data.from[0]].tmpIds).length == 0)
 681             this.$delete(this.people, data.from[0]);
 682           else this.$forceUpdate(); //TODO: shouldn't be required
 683           if (data.code == "disconnect") {
 684             // Remove the live challenges sent by this player:
 685             ArrayFun.remove(
 686               this.challenges,
 687               c => c.type == "live" && c.from.sid == data.from[0],
 688               "all"
 689             );
 690           } else {
 691             // Remove the matching live game if now unreachable
 692             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
 693             // Corr games are always reachable:
 694             if (!gid.match(/^[0-9]+$/)) {
 695               // Live games are reachable if someone is on the game page
 696               if (Object.values(this.people).every(p =>
 697                 Object.values(p.tmpIds).every(v => v.page != data.page))
 698               ) {
 699                 ArrayFun.remove(this.games, g => g.id == gid);
 700               }
 701             }
 702           }
 703           break;
 704         }
 705         case "getfocus": {
 706           let player = this.people[data.from[0]];
 707           // If user reload a page, focus may arrive earlier than connect
 708           if (!!player) {
 709             player.tmpIds[data.from[1]].focus = true;
 710             this.$forceUpdate(); //TODO: shouldn't be required
 711           }
 712           break;
 713         }
 714         case "losefocus": {
 715           let player = this.people[data.from[0]];
 716           if (!!player) {
 717             player.tmpIds[data.from[1]].focus = false;
 718             this.$forceUpdate(); //TODO: shouldn't be required
 719           }
 720           break;
 721         }
 722         case "askidentity": {
 723           // Request for identification
 724           const me = {
 725             // Decompose to avoid revealing email
 726             name: this.st.user.name,
 727             sid: this.st.user.sid,
 728             id: this.st.user.id
 729           };
 730           this.send("identity", { data: me, target: data.from });
 731           break;
 732         }
 733         case "identity": {
 734           const user = data.data;
 735           let player = this.people[user.sid];
 736           // player.tmpIds is already set
 737           player.id = user.id;
 738           player.name = user.name;
 739           // TODO: this.$set(people, ...) fails. So forceUpdate.
 740           //       But this shouldn't be like that!
 741           this.$forceUpdate();
 742           // If I multi-connect, kill current connexion if no mark (I'm older)
 743           if (this.newConnect[user.sid]) {
 744             delete this.newConnect[user.sid];
 745             if (
 746               user.id > 0 &&
 747               user.id == this.st.user.id &&
 748               user.sid != this.st.user.sid
 749             ) {
 750               // I logged in elsewhere:
 751               this.cleanBeforeDestroy();
 752               alert(this.st.tr["New connexion detected: tab now offline"]);
 753             }
 754           }
 755           break;
 756         }
 757         case "askchallenges": {
 758           // Send my current live challenges (if any)
 759           const myChallenges = this.challenges
 760             .filter(c =>
 761               c.from.sid == this.st.user.sid && c.type == "live"
 762             )
 763             .map(c => {
 764               // NOTE: in principle, should only send targeted challenge to the
 765               // target. But we may not know yet the identity of the target
 766               // (just name), so can't decide if data.from is the target.
 767               return {
 768                 id: c.id,
 769                 from: this.st.user.sid,
 770                 to: c.to,
 771                 randomness: c.randomness,
 772                 fen: c.fen,
 773                 vid: c.vid,
 774                 cadence: c.cadence,
 775                 added: c.added
 776               };
 777             });
 778           if (myChallenges.length > 0)
 779             this.send("challenges", { data: myChallenges, target: data.from });
 780           break;
 781         }
 782         case "challenges": //after "askchallenges"
 783           data.data.forEach(this.addChallenge);
 784           break;
 785         case "newchallenge":
 786           this.addChallenge(data.data);
 787           break;
 788         case "refusechallenge": {
 789           const cid = data.data;
 790           ArrayFun.remove(this.challenges, c => c.id == cid);
 791           alert(this.st.tr["Challenge declined"]);
 792           break;
 793         }
 794         case "deletechallenge_s": {
 795           // NOTE: the challenge(s) may be already removed
 796           const cref = data.data;
 797           if (!!cref.cid)
 798             ArrayFun.remove(this.challenges, c => c.id == cref.cid);
 799           else if (!!cref.sids) {
 800             cref.sids.forEach(s => {
 801               ArrayFun.remove(
 802                 this.challenges,
 803                 c => c.type == "live" && c.from.sid == s,
 804                 "all"
 805               );
 806             });
 807           }
 808           break;
 809         }
 810         case "game": // Individual request
 811         case "newgame": {
 812           const game = data.data;
 813           // Ignore games where I play (will go in MyGames page),
 814           // and also games that I already received.
 815           if (
 816             game.players.every(p =>
 817               p.sid != this.st.user.sid && p.id != this.st.user.id) &&
 818             this.games.findIndex(g => g.id == game.id) == -1
 819           ) {
 820             let newGame = game;
 821             newGame.type = this.classifyObject(game);
 822             newGame.vname = this.getVname(game.vid);
 823             if (!game.score)
 824               // New game from Hall
 825               newGame.score = "*";
 826             this.games.push(newGame);
 827             if (
 828               (newGame.type == "live" && this.gdisplay == "corr") ||
 829               (newGame.type == "corr" && this.gdisplay == "live")
 830             ) {
 831               document
 832                 .getElementById("btnG" + newGame.type)
 833                 .classList.add("somethingnew");
 834             }
 835           }
 836           break;
 837         }
 838         case "result": {
 839           let g = this.games.find(g => g.id == data.gid);
 840           if (!!g) g.score = data.score;
 841           break;
 842         }
 843         case "startgame": {
 844           // New game just started, I'm involved
 845           const gameInfo = data.data;
 846           if (this.classifyObject(gameInfo) == "live")
 847             this.startNewGame(gameInfo);
 848           else {
 849             this.infoMessage =
 850               this.st.tr["New correspondance game:"] + " " +
 851               "<a href='#/game/" + gameInfo.id + "'>" +
 852               "#/game/" + gameInfo.id + "</a>";
 853             document.getElementById("modalInfo").checked = true;
 854           }
 855           break;
 856         }
 857         case "newchat":
 858           this.$refs["chatcomp"].newChat(data.data);
 859           if (!document.getElementById("modalPeople").checked)
 860             document.getElementById("peopleBtn").classList.add("somethingnew");
 861           break;
 862       }
 863     },
 864     loadMoreCorr: function() {
 865       ajax(
 866         "/observedgames",
 867         "GET",
 868         {
 869           data: {
 870             uid: this.st.user.id,
 871             cursor: this.cursor
 872           },
 873           success: (res) => {
 874             const L = res.games.length;
 875             if (L > 0) {
 876               if (
 877                 this.cursor == Number.MAX_SAFE_INTEGER &&
 878                 this.games.length == 0 &&
 879                 this.gdisplay == "live"
 880               ) {
 881                 // First loading: show indicators
 882                 document
 883                   .getElementById("btnGcorr")
 884                   .classList.add("somethingnew");
 885               }
 886               this.cursor = res.games[L - 1].created;
 887               let moreGames = res.games.map(g => {
 888                 const vname = this.getVname(g.vid);
 889                 return Object.assign(
 890                   {},
 891                   g,
 892                   {
 893                     type: "corr",
 894                     vname: vname
 895                   }
 896                 );
 897               });
 898               this.games = this.games.concat(moreGames);
 899             } else this.hasMore = false;
 900           }
 901         }
 902       );
 903     },
 904     // Challenge lifecycle:
 905     addChallenge: function(chall) {
 906       // NOTE about next condition: see "askchallenges" case.
 907       if (
 908         !chall.to ||
 909         (this.people[chall.from].id > 0 &&
 910           (chall.from == this.st.user.sid || chall.to == this.st.user.name))
 911       ) {
 912         let newChall = Object.assign({}, chall);
 913         newChall.type = this.classifyObject(chall);
 914         newChall.randomness = chall.randomness;
 915         newChall.added = Date.now();
 916         let fromValues = Object.assign({}, this.people[chall.from]);
 917         delete fromValues["pages"]; //irrelevant in this context
 918         newChall.from = Object.assign({ sid: chall.from }, fromValues);
 919         newChall.vname = this.getVname(newChall.vid);
 920         this.challenges.push(newChall);
 921         if (
 922           (newChall.type == "live" && this.cdisplay == "corr") ||
 923           (newChall.type == "corr" && this.cdisplay == "live")
 924         ) {
 925           document
 926             .getElementById("btnC" + newChall.type)
 927             .classList.add("somethingnew");
 928         }
 929         if (!!chall.to) {
 930           notify(
 931             "New challenge",
 932             // fromValues.name should exist since the player is online, but
 933             // let's consider there is some chance that the challenge arrives
 934             // right after we connected and before receiving the poll result:
 935             { body: "from " + (fromValues.name || "unknown yet...") }
 936           );
 937         }
 938       }
 939     },
 940     loadNewchallVariant: async function(cb) {
 941       const vname = this.getVname(this.newchallenge.vid);
 942       await import("@/variants/" + vname + ".js")
 943       .then((vModule) => {
 944         window.V = vModule[vname + "Rules"];
 945         this.newchallenge.V = window.V;
 946         this.newchallenge.vname = vname;
 947         if (!!cb) cb();
 948       });
 949     },
 950     trySetNewchallDiag: function() {
 951       if (!this.newchallenge.fen) {
 952         this.newchallenge.diag = "";
 953         return;
 954       }
 955       // If vid > 0 then the variant is loaded (function above):
 956       window.V = this.newchallenge.V;
 957       if (
 958         this.newchallenge.vid > 0 &&
 959         !!this.newchallenge.fen &&
 960         V.IsGoodFen(this.newchallenge.fen)
 961       ) {
 962         const parsedFen = V.ParseFen(this.newchallenge.fen);
 963         this.newchallenge.diag = getDiagram({
 964           position: parsedFen.position,
 965           orientation: parsedFen.turn
 966         });
 967       } else this.newchallenge.diag = "";
 968     },
 969     newChallFromPreset(pchall) {
 970       this.partialResetNewchallenge();
 971       this.newchallenge.vid = pchall.vid;
 972       this.newchallenge.cadence = pchall.cadence;
 973       this.newchallenge.randomness = pchall.randomness;
 974       this.loadNewchallVariant(this.issueNewChallenge);
 975     },
 976     issueNewChallenge: async function() {
 977       if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
 978         this.newchallenge.cadence += "+0"; //assume minutes, no increment
 979       const ctype = this.classifyObject(this.newchallenge);
 980       // TODO: cadence still unchecked so ctype could be wrong...
 981       let error = "";
 982       if (!this.newchallenge.vid)
 983         error = this.st.tr["Please select a variant"];
 984       else if (ctype == "corr" && this.st.user.id <= 0)
 985         error = this.st.tr["Please log in to play correspondance games"];
 986       else if (!!this.newchallenge.to) {
 987         if (this.newchallenge.to == this.st.user.name)
 988           error = this.st.tr["Self-challenge is forbidden"];
 989         else if (
 990           ctype == "live" &&
 991           Object.values(this.people).every(p => p.name != this.newchallenge.to)
 992         ) {
 993           error = this.newchallenge.to + " " + this.st.tr["is not online"];
 994         }
 995       }
 996       if (error) {
 997         alert(error);
 998         return;
 999       }
1000       window.V = this.newchallenge.V;
1001       error = checkChallenge(this.newchallenge);
1002       if (error) {
1003         alert(error);
1004         return;
1005       }
1006       // NOTE: "from" information is not required here
1007       let chall = Object.assign({}, this.newchallenge);
1008       // Add only if not already issued (not counting target or FEN):
1009       if (this.challenges.some(c =>
1010         (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
1011         c.vid == chall.vid &&
1012         c.cadence == chall.cadence &&
1013         c.randomness == chall.randomness
1014       )) {
1015         alert(this.st.tr["Challenge already exists"]);
1016         return;
1017       }
1018       if (this.newchallenge.memorize) this.addPresetChall(this.newchallenge);
1019       delete chall["V"];
1020       delete chall["diag"];
1021       const finishAddChallenge = cid => {
1022         chall.id = cid || "c" + getRandString();
1023         const MAX_ALLOWED_CHALLS = 3;
1024         // Remove oldest challenge if 3 found: only 3 at a time of a given type
1025         let countMyChalls = 0;
1026         let challToDelIdx = 0;
1027         let oldestAdded = Number.MAX_SAFE_INTEGER;
1028         for (let i=0; i<this.challenges.length; i++) {
1029           const c = this.challenges[i];
1030           if (
1031             c.type == ctype &&
1032             (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id)
1033           ) {
1034             countMyChalls++;
1035             if (c.added < oldestAdded) {
1036               challToDelIdx = i;
1037               oldestAdded = c.added;
1038             }
1039           }
1040         }
1041         if (countMyChalls >= MAX_ALLOWED_CHALLS) {
1042           this.send(
1043             "deletechallenge_s",
1044             { data: { cid: this.challenges[challToDelIdx].id } }
1045           );
1046           if (ctype == "corr") {
1047             ajax(
1048               "/challenges",
1049               "DELETE",
1050               { data: { id: this.challenges[challToDelIdx].id } }
1051             );
1052           }
1053           this.challenges.splice(challToDelIdx, 1);
1054         }
1055         this.send("newchallenge", {
1056           data: Object.assign({ from: this.st.user.sid }, chall)
1057         });
1058         // Add new challenge:
1059         chall.from = {
1060           sid: this.st.user.sid,
1061           id: this.st.user.id,
1062           name: this.st.user.name
1063         };
1064         chall.added = Date.now();
1065         // NOTE: vname and type are redundant (deduced from cadence + vid)
1066         chall.type = ctype;
1067         chall.vname = this.newchallenge.vname;
1068         this.challenges.push(chall);
1069         // Remember cadence  + vid for quicker further challenges:
1070         localStorage.setItem("cadence", chall.cadence);
1071         localStorage.setItem("vid", chall.vid);
1072         localStorage.setItem("challRandomness", chall.randomness);
1073         document.getElementById("modalNewgame").checked = false;
1074         // Show the challenge if not on current display
1075         if (
1076           (ctype == "live" && this.cdisplay == "corr") ||
1077           (ctype == "corr" && this.cdisplay == "live")
1078         ) {
1079           this.setDisplay('c', ctype);
1080         }
1081       };
1082       if (ctype == "live") {
1083         // Live challenges have a random ID
1084         finishAddChallenge(null);
1085       } else {
1086         // Correspondance game: send challenge to server
1087         ajax(
1088           "/challenges",
1089           "POST",
1090           {
1091             data: { chall: chall },
1092             success: (response) => {
1093               finishAddChallenge(response.id);
1094             }
1095           }
1096         );
1097       }
1098     },
1099     // Callback function after a diagram was showed to accept
1100     // or refuse targetted challenge:
1101     decisionChallenge: function(accepted) {
1102       this.curChallToAccept.accepted = accepted;
1103       this.finishProcessingChallenge(this.curChallToAccept);
1104       document.getElementById("modalAccept").checked = false;
1105     },
1106     finishProcessingChallenge: function(c) {
1107       if (c.accepted) {
1108         c.seat = {
1109           sid: this.st.user.sid,
1110           id: this.st.user.id,
1111           name: this.st.user.name
1112         };
1113         this.launchGame(c);
1114         if (c.type == "live") {
1115           // Remove all live challenges of both players
1116           this.send(
1117             "deletechallenge_s",
1118             { data: { sids: [c.from.sid, c.seat.sid] } }
1119           );
1120         }
1121         else
1122           // Corr challenge: just remove the challenge
1123           this.send("deletechallenge_s", { data: { cid: c.id } });
1124       } else {
1125         const oppsid = this.getOppsid(c);
1126         if (!!oppsid)
1127           this.send("refusechallenge", { data: c.id, target: oppsid });
1128         if (c.type == "corr") {
1129           ajax(
1130             "/challenges",
1131             "DELETE",
1132             { data: { id: c.id } }
1133           );
1134         }
1135         this.send("deletechallenge_s", { data: { cid: c.id } });
1136       }
1137     },
1138     // TODO: if several players click same challenge at the same time: problem
1139     clickChallenge: async function(c) {
1140       const myChallenge =
1141         c.from.sid == this.st.user.sid || //live
1142         (this.st.user.id > 0 && c.from.id == this.st.user.id); //corr
1143       if (!myChallenge) {
1144         if (c.type == "corr" && this.st.user.id <= 0) {
1145           alert(this.st.tr["Please log in to accept corr challenges"]);
1146           return;
1147         }
1148         c.accepted = true;
1149         await import("@/variants/" + c.vname + ".js")
1150         .then((vModule) => {
1151           window.V = vModule[c.vname + "Rules"];
1152           if (!!c.to) {
1153             // c.to == this.st.user.name (connected)
1154             if (!!c.fen) {
1155               const parsedFen = V.ParseFen(c.fen);
1156               c.mycolor = V.GetOppCol(parsedFen.turn);
1157               this.tchallDiag = getDiagram({
1158                 position: parsedFen.position,
1159                 orientation: c.mycolor
1160               });
1161             }
1162             this.curChallToAccept = c;
1163             document.getElementById("modalAccept").checked = true;
1164           }
1165           else this.finishProcessingChallenge(c);
1166         });
1167       }
1168       else {
1169         // My challenge
1170         if (c.type == "corr") {
1171           ajax(
1172             "/challenges",
1173             "DELETE",
1174             { data: { id: c.id } }
1175           );
1176         }
1177         this.send("deletechallenge_s", { data: { cid: c.id } });
1178       }
1179       // In all cases, the challenge is consumed:
1180       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
1181     },
1182     // NOTE: when launching game, the challenge is already being deleted
1183     launchGame: function(c) {
1184       // White player index 0, black player index 1:
1185       let players =
1186         !!c.mycolor
1187           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
1188           : shuffle([c.from, c.seat]);
1189       players.forEach(p => {
1190         if (!!p["tmpIds"]) delete p["tmpIds"];
1191       });
1192       // These game informations will be shared
1193       let gameInfo = {
1194         id: getRandString(),
1195         fen: c.fen || V.GenRandInitFen(c.randomness),
1196         randomness: c.randomness, //for rematch
1197         players: players,
1198         vid: c.vid,
1199         cadence: c.cadence
1200       };
1201       const notifyNewgame = () => {
1202         const oppsid = this.getOppsid(c);
1203         if (!!oppsid)
1204           // Opponent is online
1205           this.send("startgame", { data: gameInfo, target: oppsid });
1206         // If new corr game, notify Hall (except opponent and me)
1207         if (c.type == "corr") {
1208           this.send(
1209             "newgame",
1210             {
1211               data: gameInfo,
1212               excluded: [this.st.user.sid, oppsid]
1213             }
1214           );
1215         }
1216         // Notify MyGames page:
1217         this.send(
1218           "notifynewgame",
1219           {
1220             data: gameInfo,
1221             targets: gameInfo.players
1222           }
1223         );
1224         // NOTE: no need to send the game to the room, since I'll connect
1225         // on game just after, the main Hall will be notified.
1226       };
1227       if (c.type == "live") {
1228         notifyNewgame();
1229         this.startNewGame(gameInfo);
1230       } else {
1231         // corr: game only on server
1232         ajax(
1233           "/games",
1234           "POST",
1235           {
1236             // cid is useful to delete the challenge:
1237             data: {
1238               gameInfo: gameInfo,
1239               cid: c.id
1240             },
1241             success: (response) => {
1242               gameInfo.id = response.id;
1243               notifyNewgame();
1244               this.$router.push("/game/" + response.id);
1245             }
1246           }
1247         );
1248       }
1249     },
1250     // NOTE: for live games only (corr games start on the server)
1251     startNewGame: function(gameInfo) {
1252       const game = Object.assign(
1253         {},
1254         gameInfo,
1255         {
1256           // (other) Game infos: constant
1257           fenStart: gameInfo.fen,
1258           vname: this.getVname(gameInfo.vid),
1259           created: Date.now(),
1260           // Game state (including FEN): will be updated
1261           moves: [],
1262           clocks: [-1, -1], //-1 = unstarted
1263           chats: [],
1264           score: "*"
1265         }
1266       );
1267       setTimeout(
1268         () => {
1269           const myIdx = (game.players[0].sid == this.st.user.sid ? 0 : 1);
1270           GameStorage.add(game, (err) => {
1271             // If an error occurred, game is not added: a tab already
1272             // added the game. Maybe a focused one, maybe not.
1273             // We know for sure that it emitted the gong start sound.
1274             // ==> Do not play it again.
1275             if (!err && this.st.settings.sound)
1276               new Audio("/sounds/newgame.flac").play().catch(() => {});
1277             if (!this.focus) {
1278               notify(
1279                 "New live game",
1280                 { body: "vs " + game.players[1-myIdx].name || "@nonymous" }
1281               );
1282             }
1283             this.$router.push("/game/" + gameInfo.id);
1284           });
1285         },
1286         this.focus ? 500 + 1000 * Math.random() : 0
1287       );
1288     }
1289   }
1290 };
1291 </script>
1292
1293 <style lang="sass" scoped>
1294 .active
1295   color: #42a983
1296
1297 #infoDiv > .card
1298   padding: 15px 0
1299   max-width: 430px
1300
1301 #newgameDiv > .card, #acceptDiv > .card
1302   max-width: 767px
1303   max-height: 100%
1304
1305 div#peopleWrap > .card
1306   max-height: 100%
1307
1308 @media screen and (min-width: 1281px)
1309   div#peopleWrap > .card
1310     max-width: 66.67%
1311
1312 @media screen and (max-width: 1280px)
1313   div#peopleWrap > .card
1314     max-width: 83.33%
1315
1316 @media screen and (max-width: 767px)
1317   div#peopleWrap > .card
1318     max-width: 100%
1319
1320 #players
1321   width: 50%
1322   position: relative
1323   float: left
1324
1325 #chat
1326   width: 50%
1327   float: left
1328   position: relative
1329
1330 @media screen and (max-width: 767px)
1331   #players, #chats
1332     width: 100%
1333
1334 #chat > .card
1335   max-width: 100%
1336   margin: 0;
1337   border: none;
1338
1339 #players > p
1340   margin-left: 5px
1341
1342 .anonymous
1343   font-style: italic
1344
1345 button.player-action
1346   margin-left: 32px
1347
1348 .somethingnew
1349   background-color: #c5fefe !important
1350
1351 .tabbtn
1352   background-color: #f9faee
1353
1354 button.acceptBtn
1355   background-color: lightgreen
1356 button.refuseBtn
1357   background-color: red
1358
1359 #buttonsTchall
1360   // margin-top set dynamically (depends if diagram showed or not)
1361   & > button > span
1362     width: 100%
1363     text-align: center
1364
1365 .variantName
1366   font-weight: bold
1367
1368 .diagram
1369   margin: 0 auto
1370   max-width: 400px
1371   // width: 100% required for Firefox
1372   width: 100%
1373
1374 #inputFen
1375   width: 100%
1376
1377 #div2, #div3
1378   margin-top: 15px
1379 @media screen and (max-width: 767px)
1380   #div2, #div3
1381     margin-top: 0
1382
1383 tr > td
1384   &.random-0
1385     background-color: #FF5733
1386   &.random-1
1387     background-color: #2B63B4
1388   &.random-2
1389     background-color: #33B42B
1390
1391 @media screen and (max-width: 767px)
1392   h4
1393     margin: 5px 0
1394
1395 button#loadMoreBtn
1396   display: block
1397   margin: 0 auto
1398
1399 td.remove-preset
1400   background-color: lightgrey
1401   text-align: center
1402   & > img
1403     height: 1em
1404 </style>