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.$forceUpdate(); //TODO: shouldn't be required
 683           if (data.code == "disconnect") {
 684             // Remove the live challenges sent by this player, if
 685             // he isn't connected on another tab:
 686             if (
 687               !this.people[data.from[0]] ||
 688               Object.values(this.people[data.from[0]].tmpIds)
 689                 .every(v => v.page != "/")
 690             ) {
 691               ArrayFun.remove(
 692                 this.challenges,
 693                 c => c.type == "live" && c.from.sid == data.from[0],
 694                 "all"
 695               );
 696             }
 697           } else {
 698             // Remove the matching live game if now unreachable
 699             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
 700             // Corr games are always reachable:
 701             if (!gid.match(/^[0-9]+$/)) {
 702               // Live games are reachable if someone is on the game page
 703               if (Object.values(this.people).every(p =>
 704                 Object.values(p.tmpIds).every(v => v.page != data.page))
 705               ) {
 706                 ArrayFun.remove(this.games, g => g.id == gid);
 707               }
 708             }
 709           }
 710           break;
 711         }
 712         case "getfocus": {
 713           let player = this.people[data.from[0]];
 714           // If user reload a page, focus may arrive earlier than connect
 715           if (!!player) {
 716             player.tmpIds[data.from[1]].focus = true;
 717             this.$forceUpdate(); //TODO: shouldn't be required
 718           }
 719           break;
 720         }
 721         case "losefocus": {
 722           let player = this.people[data.from[0]];
 723           if (!!player) {
 724             player.tmpIds[data.from[1]].focus = false;
 725             this.$forceUpdate(); //TODO: shouldn't be required
 726           }
 727           break;
 728         }
 729         case "askidentity": {
 730           // Request for identification
 731           const me = {
 732             // Decompose to avoid revealing email
 733             name: this.st.user.name,
 734             sid: this.st.user.sid,
 735             id: this.st.user.id
 736           };
 737           this.send("identity", { data: me, target: data.from });
 738           break;
 739         }
 740         case "identity": {
 741           const user = data.data;
 742           let player = this.people[user.sid];
 743           // player.tmpIds is already set
 744           player.id = user.id;
 745           player.name = user.name;
 746           // TODO: this.$set(people, ...) fails. So forceUpdate.
 747           //       But this shouldn't be like that!
 748           this.$forceUpdate();
 749           // If I multi-connect, kill current connexion if no mark (I'm older)
 750           if (this.newConnect[user.sid]) {
 751             delete this.newConnect[user.sid];
 752             if (
 753               user.id > 0 &&
 754               user.id == this.st.user.id &&
 755               user.sid != this.st.user.sid
 756             ) {
 757               // I logged in elsewhere:
 758               this.cleanBeforeDestroy();
 759               alert(this.st.tr["New connexion detected: tab now offline"]);
 760             }
 761           }
 762           break;
 763         }
 764         case "askchallenges": {
 765           // Send my current live challenges (if any)
 766           const myChallenges = this.challenges
 767             .filter(c =>
 768               c.from.sid == this.st.user.sid && c.type == "live"
 769             )
 770             .map(c => {
 771               // NOTE: in principle, should only send targeted challenge to the
 772               // target. But we may not know yet the identity of the target
 773               // (just name), so can't decide if data.from is the target.
 774               return {
 775                 id: c.id,
 776                 from: this.st.user.sid,
 777                 to: c.to,
 778                 randomness: c.randomness,
 779                 fen: c.fen,
 780                 vid: c.vid,
 781                 cadence: c.cadence,
 782                 added: c.added
 783               };
 784             });
 785           if (myChallenges.length > 0)
 786             this.send("challenges", { data: myChallenges, target: data.from });
 787           break;
 788         }
 789         case "challenges": //after "askchallenges"
 790           data.data.forEach(this.addChallenge);
 791           break;
 792         case "newchallenge":
 793           this.addChallenge(data.data);
 794           break;
 795         case "refusechallenge": {
 796           const cid = data.data;
 797           ArrayFun.remove(this.challenges, c => c.id == cid);
 798           alert(this.st.tr["Challenge declined"]);
 799           break;
 800         }
 801         case "deletechallenge_s": {
 802           // NOTE: the challenge(s) may be already removed
 803           const cref = data.data;
 804           if (!!cref.cid)
 805             ArrayFun.remove(this.challenges, c => c.id == cref.cid);
 806           else if (!!cref.sids) {
 807             cref.sids.forEach(s => {
 808               ArrayFun.remove(
 809                 this.challenges,
 810                 c => c.type == "live" && c.from.sid == s,
 811                 "all"
 812               );
 813             });
 814           }
 815           break;
 816         }
 817         case "game": // Individual request
 818         case "newgame": {
 819           const game = data.data;
 820           // Ignore games where I play (will go in MyGames page),
 821           // and also games that I already received.
 822           if (
 823             game.players.every(p =>
 824               p.sid != this.st.user.sid && p.id != this.st.user.id) &&
 825             this.games.findIndex(g => g.id == game.id) == -1
 826           ) {
 827             let newGame = game;
 828             newGame.type = this.classifyObject(game);
 829             newGame.vname = this.getVname(game.vid);
 830             if (!game.score)
 831               // New game from Hall
 832               newGame.score = "*";
 833             this.games.push(newGame);
 834             if (
 835               (newGame.type == "live" && this.gdisplay == "corr") ||
 836               (newGame.type == "corr" && this.gdisplay == "live")
 837             ) {
 838               document
 839                 .getElementById("btnG" + newGame.type)
 840                 .classList.add("somethingnew");
 841             }
 842           }
 843           break;
 844         }
 845         case "result": {
 846           let g = this.games.find(g => g.id == data.gid);
 847           if (!!g) g.score = data.score;
 848           break;
 849         }
 850         case "startgame": {
 851           // New game just started, I'm involved
 852           const gameInfo = data.data;
 853           if (this.classifyObject(gameInfo) == "live")
 854             this.startNewGame(gameInfo);
 855           else {
 856             this.infoMessage =
 857               this.st.tr["New correspondance game:"] + " " +
 858               "<a href='#/game/" + gameInfo.id + "'>" +
 859               "#/game/" + gameInfo.id + "</a>";
 860             document.getElementById("modalInfo").checked = true;
 861           }
 862           break;
 863         }
 864         case "newchat":
 865           this.$refs["chatcomp"].newChat(data.data);
 866           if (!document.getElementById("modalPeople").checked)
 867             document.getElementById("peopleBtn").classList.add("somethingnew");
 868           break;
 869       }
 870     },
 871     loadMoreCorr: function() {
 872       ajax(
 873         "/observedgames",
 874         "GET",
 875         {
 876           data: {
 877             uid: this.st.user.id,
 878             cursor: this.cursor
 879           },
 880           success: (res) => {
 881             const L = res.games.length;
 882             if (L > 0) {
 883               if (
 884                 this.cursor == Number.MAX_SAFE_INTEGER &&
 885                 this.games.length == 0 &&
 886                 this.gdisplay == "live"
 887               ) {
 888                 // First loading: show indicators
 889                 document
 890                   .getElementById("btnGcorr")
 891                   .classList.add("somethingnew");
 892               }
 893               this.cursor = res.games[L - 1].created;
 894               let moreGames = res.games.map(g => {
 895                 const vname = this.getVname(g.vid);
 896                 return Object.assign(
 897                   {},
 898                   g,
 899                   {
 900                     type: "corr",
 901                     vname: vname
 902                   }
 903                 );
 904               });
 905               this.games = this.games.concat(moreGames);
 906             } else this.hasMore = false;
 907           }
 908         }
 909       );
 910     },
 911     // Challenge lifecycle:
 912     addChallenge: function(chall) {
 913       // NOTE about next condition: see "askchallenges" case.
 914       if (
 915         !chall.to ||
 916         (this.people[chall.from].id > 0 &&
 917           (chall.from == this.st.user.sid || chall.to == this.st.user.name))
 918       ) {
 919         let newChall = Object.assign({}, chall);
 920         newChall.type = this.classifyObject(chall);
 921         newChall.randomness = chall.randomness;
 922         newChall.added = Date.now();
 923         let fromValues = Object.assign({}, this.people[chall.from]);
 924         delete fromValues["pages"]; //irrelevant in this context
 925         newChall.from = Object.assign({ sid: chall.from }, fromValues);
 926         newChall.vname = this.getVname(newChall.vid);
 927         this.challenges.push(newChall);
 928         if (
 929           (newChall.type == "live" && this.cdisplay == "corr") ||
 930           (newChall.type == "corr" && this.cdisplay == "live")
 931         ) {
 932           document
 933             .getElementById("btnC" + newChall.type)
 934             .classList.add("somethingnew");
 935         }
 936         if (!!chall.to) {
 937           notify(
 938             "New challenge",
 939             // fromValues.name should exist since the player is online, but
 940             // let's consider there is some chance that the challenge arrives
 941             // right after we connected and before receiving the poll result:
 942             { body: "from " + (fromValues.name || "unknown yet...") }
 943           );
 944         }
 945       }
 946     },
 947     loadNewchallVariant: async function(cb) {
 948       const vname = this.getVname(this.newchallenge.vid);
 949       await import("@/variants/" + vname + ".js")
 950       .then((vModule) => {
 951         window.V = vModule[vname + "Rules"];
 952         this.newchallenge.V = window.V;
 953         this.newchallenge.vname = vname;
 954         if (!!cb) cb();
 955       });
 956     },
 957     trySetNewchallDiag: function() {
 958       if (!this.newchallenge.fen) {
 959         this.newchallenge.diag = "";
 960         return;
 961       }
 962       // If vid > 0 then the variant is loaded (function above):
 963       window.V = this.newchallenge.V;
 964       if (
 965         this.newchallenge.vid > 0 &&
 966         !!this.newchallenge.fen &&
 967         V.IsGoodFen(this.newchallenge.fen)
 968       ) {
 969         const parsedFen = V.ParseFen(this.newchallenge.fen);
 970         this.newchallenge.diag = getDiagram({
 971           position: parsedFen.position,
 972           orientation: parsedFen.turn
 973         });
 974       } else this.newchallenge.diag = "";
 975     },
 976     newChallFromPreset(pchall) {
 977       this.partialResetNewchallenge();
 978       this.newchallenge.vid = pchall.vid;
 979       this.newchallenge.cadence = pchall.cadence;
 980       this.newchallenge.randomness = pchall.randomness;
 981       this.loadNewchallVariant(this.issueNewChallenge);
 982     },
 983     issueNewChallenge: async function() {
 984       if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
 985         this.newchallenge.cadence += "+0"; //assume minutes, no increment
 986       const ctype = this.classifyObject(this.newchallenge);
 987       // TODO: cadence still unchecked so ctype could be wrong...
 988       let error = "";
 989       if (!this.newchallenge.vid)
 990         error = this.st.tr["Please select a variant"];
 991       else if (ctype == "corr" && this.st.user.id <= 0)
 992         error = this.st.tr["Please log in to play correspondance games"];
 993       else if (!!this.newchallenge.to) {
 994         if (this.newchallenge.to == this.st.user.name)
 995           error = this.st.tr["Self-challenge is forbidden"];
 996         else if (
 997           ctype == "live" &&
 998           Object.values(this.people).every(p => p.name != this.newchallenge.to)
 999         ) {
1000           error = this.newchallenge.to + " " + this.st.tr["is not online"];
1001         }
1002       }
1003       if (error) {
1004         alert(error);
1005         return;
1006       }
1007       window.V = this.newchallenge.V;
1008       error = checkChallenge(this.newchallenge);
1009       if (error) {
1010         alert(error);
1011         return;
1012       }
1013       // NOTE: "from" information is not required here
1014       let chall = Object.assign({}, this.newchallenge);
1015       // Add only if not already issued (not counting target or FEN):
1016       if (this.challenges.some(c =>
1017         (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
1018         c.vid == chall.vid &&
1019         c.cadence == chall.cadence &&
1020         c.randomness == chall.randomness
1021       )) {
1022         alert(this.st.tr["Challenge already exists"]);
1023         return;
1024       }
1025       if (this.newchallenge.memorize) this.addPresetChall(this.newchallenge);
1026       delete chall["V"];
1027       delete chall["diag"];
1028       const finishAddChallenge = cid => {
1029         chall.id = cid || "c" + getRandString();
1030         const MAX_ALLOWED_CHALLS = 3;
1031         // Remove oldest challenge if 3 found: only 3 at a time of a given type
1032         let countMyChalls = 0;
1033         let challToDelIdx = 0;
1034         let oldestAdded = Number.MAX_SAFE_INTEGER;
1035         for (let i=0; i<this.challenges.length; i++) {
1036           const c = this.challenges[i];
1037           if (
1038             c.type == ctype &&
1039             (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id)
1040           ) {
1041             countMyChalls++;
1042             if (c.added < oldestAdded) {
1043               challToDelIdx = i;
1044               oldestAdded = c.added;
1045             }
1046           }
1047         }
1048         if (countMyChalls >= MAX_ALLOWED_CHALLS) {
1049           this.send(
1050             "deletechallenge_s",
1051             { data: { cid: this.challenges[challToDelIdx].id } }
1052           );
1053           if (ctype == "corr") {
1054             ajax(
1055               "/challenges",
1056               "DELETE",
1057               { data: { id: this.challenges[challToDelIdx].id } }
1058             );
1059           }
1060           this.challenges.splice(challToDelIdx, 1);
1061         }
1062         this.send("newchallenge", {
1063           data: Object.assign({ from: this.st.user.sid }, chall)
1064         });
1065         // Add new challenge:
1066         chall.from = {
1067           sid: this.st.user.sid,
1068           id: this.st.user.id,
1069           name: this.st.user.name
1070         };
1071         chall.added = Date.now();
1072         // NOTE: vname and type are redundant (deduced from cadence + vid)
1073         chall.type = ctype;
1074         chall.vname = this.newchallenge.vname;
1075         this.challenges.push(chall);
1076         // Remember cadence  + vid for quicker further challenges:
1077         localStorage.setItem("cadence", chall.cadence);
1078         localStorage.setItem("vid", chall.vid);
1079         localStorage.setItem("challRandomness", chall.randomness);
1080         document.getElementById("modalNewgame").checked = false;
1081         // Show the challenge if not on current display
1082         if (
1083           (ctype == "live" && this.cdisplay == "corr") ||
1084           (ctype == "corr" && this.cdisplay == "live")
1085         ) {
1086           this.setDisplay('c', ctype);
1087         }
1088       };
1089       if (ctype == "live") {
1090         // Live challenges have a random ID
1091         finishAddChallenge(null);
1092       } else {
1093         // Correspondance game: send challenge to server
1094         ajax(
1095           "/challenges",
1096           "POST",
1097           {
1098             data: { chall: chall },
1099             success: (response) => {
1100               finishAddChallenge(response.id);
1101             }
1102           }
1103         );
1104       }
1105     },
1106     // Callback function after a diagram was showed to accept
1107     // or refuse targetted challenge:
1108     decisionChallenge: function(accepted) {
1109       this.curChallToAccept.accepted = accepted;
1110       this.finishProcessingChallenge(this.curChallToAccept);
1111       document.getElementById("modalAccept").checked = false;
1112     },
1113     finishProcessingChallenge: function(c) {
1114       if (c.accepted) {
1115         c.seat = {
1116           sid: this.st.user.sid,
1117           id: this.st.user.id,
1118           name: this.st.user.name
1119         };
1120         this.launchGame(c);
1121         if (c.type == "live") {
1122           // Remove all live challenges of both players
1123           this.send(
1124             "deletechallenge_s",
1125             { data: { sids: [c.from.sid, c.seat.sid] } }
1126           );
1127         }
1128         else
1129           // Corr challenge: just remove the challenge
1130           this.send("deletechallenge_s", { data: { cid: c.id } });
1131       } else {
1132         const oppsid = this.getOppsid(c);
1133         if (!!oppsid)
1134           this.send("refusechallenge", { data: c.id, target: oppsid });
1135         if (c.type == "corr") {
1136           ajax(
1137             "/challenges",
1138             "DELETE",
1139             { data: { id: c.id } }
1140           );
1141         }
1142         this.send("deletechallenge_s", { data: { cid: c.id } });
1143       }
1144     },
1145     // TODO: if several players click same challenge at the same time: problem
1146     clickChallenge: async function(c) {
1147       const myChallenge =
1148         c.from.sid == this.st.user.sid || //live
1149         (this.st.user.id > 0 && c.from.id == this.st.user.id); //corr
1150       if (!myChallenge) {
1151         if (c.type == "corr" && this.st.user.id <= 0) {
1152           alert(this.st.tr["Please log in to accept corr challenges"]);
1153           return;
1154         }
1155         c.accepted = true;
1156         await import("@/variants/" + c.vname + ".js")
1157         .then((vModule) => {
1158           window.V = vModule[c.vname + "Rules"];
1159           if (!!c.to) {
1160             // c.to == this.st.user.name (connected)
1161             if (!!c.fen) {
1162               const parsedFen = V.ParseFen(c.fen);
1163               c.mycolor = V.GetOppCol(parsedFen.turn);
1164               this.tchallDiag = getDiagram({
1165                 position: parsedFen.position,
1166                 orientation: c.mycolor
1167               });
1168             }
1169             this.curChallToAccept = c;
1170             document.getElementById("modalAccept").checked = true;
1171           }
1172           else this.finishProcessingChallenge(c);
1173         });
1174       }
1175       else {
1176         // My challenge
1177         if (c.type == "corr") {
1178           ajax(
1179             "/challenges",
1180             "DELETE",
1181             { data: { id: c.id } }
1182           );
1183         }
1184         this.send("deletechallenge_s", { data: { cid: c.id } });
1185       }
1186       // In all cases, the challenge is consumed:
1187       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
1188     },
1189     // NOTE: when launching game, the challenge is already being deleted
1190     launchGame: function(c) {
1191       // White player index 0, black player index 1:
1192       let players =
1193         !!c.mycolor
1194           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
1195           : shuffle([c.from, c.seat]);
1196       players.forEach(p => {
1197         if (!!p["tmpIds"]) delete p["tmpIds"];
1198       });
1199       // These game informations will be shared
1200       let gameInfo = {
1201         id: getRandString(),
1202         fen: c.fen || V.GenRandInitFen(c.randomness),
1203         randomness: c.randomness, //for rematch
1204         players: players,
1205         vid: c.vid,
1206         cadence: c.cadence
1207       };
1208       const notifyNewgame = () => {
1209         const oppsid = this.getOppsid(c);
1210         if (!!oppsid)
1211           // Opponent is online
1212           this.send("startgame", { data: gameInfo, target: oppsid });
1213         // If new corr game, notify Hall (except opponent and me)
1214         if (c.type == "corr") {
1215           this.send(
1216             "newgame",
1217             {
1218               data: gameInfo,
1219               excluded: [this.st.user.sid, oppsid]
1220             }
1221           );
1222         }
1223         // Notify MyGames page:
1224         this.send(
1225           "notifynewgame",
1226           {
1227             data: gameInfo,
1228             targets: gameInfo.players
1229           }
1230         );
1231         // NOTE: no need to send the game to the room, since I'll connect
1232         // on game just after, the main Hall will be notified.
1233       };
1234       if (c.type == "live") {
1235         notifyNewgame();
1236         this.startNewGame(gameInfo);
1237       } else {
1238         // corr: game only on server
1239         ajax(
1240           "/games",
1241           "POST",
1242           {
1243             // cid is useful to delete the challenge:
1244             data: {
1245               gameInfo: gameInfo,
1246               cid: c.id
1247             },
1248             success: (response) => {
1249               gameInfo.id = response.id;
1250               notifyNewgame();
1251               this.$router.push("/game/" + response.id);
1252             }
1253           }
1254         );
1255       }
1256     },
1257     // NOTE: for live games only (corr games start on the server)
1258     startNewGame: function(gameInfo) {
1259       const game = Object.assign(
1260         {},
1261         gameInfo,
1262         {
1263           // (other) Game infos: constant
1264           fenStart: gameInfo.fen,
1265           vname: this.getVname(gameInfo.vid),
1266           created: Date.now(),
1267           // Game state (including FEN): will be updated
1268           moves: [],
1269           clocks: [-1, -1], //-1 = unstarted
1270           chats: [],
1271           score: "*"
1272         }
1273       );
1274       setTimeout(
1275         () => {
1276           const myIdx = (game.players[0].sid == this.st.user.sid ? 0 : 1);
1277           GameStorage.add(game, (err) => {
1278             // If an error occurred, game is not added: a tab already
1279             // added the game. Maybe a focused one, maybe not.
1280             // We know for sure that it emitted the gong start sound.
1281             // ==> Do not play it again.
1282             if (!err && this.st.settings.sound)
1283               new Audio("/sounds/newgame.flac").play().catch(() => {});
1284             if (!this.focus) {
1285               notify(
1286                 "New live game",
1287                 { body: "vs " + game.players[1-myIdx].name || "@nonymous" }
1288               );
1289             }
1290             this.$router.push("/game/" + gameInfo.id);
1291           });
1292         },
1293         this.focus ? 500 + 1000 * Math.random() : 0
1294       );
1295     }
1296   }
1297 };
1298 </script>
1299
1300 <style lang="sass" scoped>
1301 .active
1302   color: #42a983
1303
1304 #infoDiv > .card
1305   padding: 15px 0
1306   max-width: 430px
1307
1308 #newgameDiv > .card, #acceptDiv > .card
1309   max-width: 767px
1310   max-height: 100%
1311
1312 div#peopleWrap > .card
1313   max-height: 100%
1314
1315 @media screen and (min-width: 1281px)
1316   div#peopleWrap > .card
1317     max-width: 66.67%
1318
1319 @media screen and (max-width: 1280px)
1320   div#peopleWrap > .card
1321     max-width: 83.33%
1322
1323 @media screen and (max-width: 767px)
1324   div#peopleWrap > .card
1325     max-width: 100%
1326
1327 #players
1328   width: 50%
1329   position: relative
1330   float: left
1331
1332 #chat
1333   width: 50%
1334   float: left
1335   position: relative
1336
1337 @media screen and (max-width: 767px)
1338   #players, #chats
1339     width: 100%
1340
1341 #chat > .card
1342   max-width: 100%
1343   margin: 0;
1344   border: none;
1345
1346 #players > p
1347   margin-left: 5px
1348
1349 .anonymous
1350   font-style: italic
1351
1352 button.player-action
1353   margin-left: 32px
1354
1355 .somethingnew
1356   background-color: #c5fefe !important
1357
1358 .tabbtn
1359   background-color: #f9faee
1360
1361 button.acceptBtn
1362   background-color: lightgreen
1363 button.refuseBtn
1364   background-color: red
1365
1366 #buttonsTchall
1367   // margin-top set dynamically (depends if diagram showed or not)
1368   & > button > span
1369     width: 100%
1370     text-align: center
1371
1372 .variantName
1373   font-weight: bold
1374
1375 .diagram
1376   margin: 0 auto
1377   max-width: 400px
1378   // width: 100% required for Firefox
1379   width: 100%
1380
1381 #inputFen
1382   width: 100%
1383
1384 #div2, #div3
1385   margin-top: 15px
1386 @media screen and (max-width: 767px)
1387   #div2, #div3
1388     margin-top: 0
1389
1390 tr > td
1391   &.random-0
1392     background-color: #FF5733
1393   &.random-1
1394     background-color: #2B63B4
1395   &.random-2
1396     background-color: #33B42B
1397
1398 @media screen and (max-width: 767px)
1399   h4
1400     margin: 5px 0
1401
1402 button#loadMoreBtn
1403   display: block
1404   margin: 0 auto
1405
1406 td.remove-preset
1407   background-color: lightgrey
1408   text-align: center
1409   & > img
1410     height: 1em
1411 </style>