client/src/views/Hall.vue

   1 <template lang="pug">
   2 main
   3   input#modalInfo.modal(type="checkbox")
   4   div#infoDiv(
   5     role="dialog"
   6     data-checkbox="modalInfo"
   7   )
   8     .card.text-center
   9       label.modal-close(for="modalInfo")
  10       p(v-html="infoMessage")
  11   input#modalAccept.modal(type="checkbox")
  12   div#acceptDiv(role="dialog")
  13     .card
  14       p.text-center
  15         span.variantName {{ curChallToAccept.vname }}
  16         span {{ curChallToAccept.cadence }}
  17         span {{ st.tr["with"] + " " + curChallToAccept.from.name }}
  18       .diagram(
  19         v-if="!!curChallToAccept.fen"
  20         v-html="tchallDiag"
  21       )
  22       .button-group#buttonsTchall(:style="tchallButtonsMargin()")
  23         button.acceptBtn(@click="decisionChallenge(true)")
  24           span {{ st.tr["Accept challenge?"] }}
  25         button.refuseBtn(@click="decisionChallenge(false)")
  26           span {{ st.tr["Refuse"] }}
  27   input#modalNewgame.modal(
  28     type="checkbox"
  29     @change="cadenceFocusIfOpened($event)"
  30   )
  31   div#newgameDiv(
  32     role="dialog"
  33     data-checkbox="modalNewgame"
  34   )
  35     .card
  36       label#closeNewgame.modal-close(for="modalNewgame")
  37       div(@keyup.enter="issueNewChallenge()")
  38         fieldset
  39           label(for="selectVariant") {{ st.tr["Variant"] }} *
  40           select#selectVariant(
  41             @change="loadNewchallVariant(trySetNewchallDiag)"
  42             v-model="newchallenge.vid"
  43           )
  44             option(
  45               v-for="v in st.variants"
  46               :value="v.id"
  47               :selected="newchallenge.vid==v.id"
  48             )
  49               | {{ v.name }}
  50         fieldset
  51           label(for="cadence") {{ st.tr["Cadence"] }} *
  52           div#predefinedCadences
  53             button(type="button") 15+5
  54             button(type="button") 45+30
  55             button(type="button") 3d
  56             button(type="button") 7d
  57           input#cadence(
  58             type="text"
  59             v-model="newchallenge.cadence"
  60             placeholder="5+0, 1h+30s, 5d ..."
  61           )
  62         fieldset
  63           label(for="selectRandomLevel") {{ st.tr["Randomness"] }} *
  64           select#selectRandomLevel(v-model="newchallenge.randomness")
  65             option(value="0") {{ st.tr["Deterministic"] }}
  66             option(value="1") {{ st.tr["Symmetric random"] }}
  67             option(value="2") {{ st.tr["Asymmetric random"] }}
  68         fieldset
  69           label(for="memorizeChall") {{ st.tr["Memorize"] }}
  70           input#memorizeChall(
  71             type="checkbox"
  72             v-model="newchallenge.memorize"
  73           )
  74         fieldset(v-if="st.user.id > 0")
  75           label(for="selectPlayers") {{ st.tr["Play with"] }}
  76           select#selectPlayersInList(
  77             v-model="newchallenge.to"
  78             @change="changeChallTarget()"
  79           )
  80             option(value="")
  81             option(
  82               v-for="p in Object.values(people)"
  83               v-if="!!p.name"
  84               :value="p.name"
  85             )
  86               | {{ p.name }}
  87           input#selectPlayers(
  88             type="text"
  89             v-model="newchallenge.to"
  90           )
  91         fieldset(v-if="st.user.id > 0 && newchallenge.to.length > 0")
  92           input#inputFen(
  93             placeholder="FEN"
  94             @input="trySetNewchallDiag()"
  95             type="text"
  96             v-model="newchallenge.fen"
  97           )
  98         .diagram(v-html="newchallenge.diag")
  99       button(@click="issueNewChallenge()") {{ st.tr["Send challenge"] }}
 100   input#modalPeople.modal(
 101     type="checkbox"
 102     @click="resetSocialColor()"
 103   )
 104   div#peopleWrap(
 105     role="dialog"
 106     data-checkbox="modalPeople"
 107   )
 108     .card
 109       label.modal-close(for="modalPeople")
 110       #people
 111         #players
 112           p(
 113             v-for="sid in Object.keys(people)"
 114             v-if="!!people[sid].name"
 115           )
 116             span {{ people[sid].name }}
 117             button.player-action(
 118               v-if="isGamer(sid)"
 119               @click="watchGame(sid)"
 120             )
 121               | {{ st.tr["Observe"] }}
 122             button.player-action(
 123               v-else-if="isFocusedOnHall(sid)"
 124               @click="challenge(sid)"
 125             )
 126               | {{ st.tr["Challenge"] }}
 127           p.anonymous @nonymous ({{ anonymousCount() }})
 128         #chat
 129           Chat(
 130             ref="chatcomp"
 131             @mychat="processChat"
 132             :pastChats="[]"
 133           )
 134         .clearer
 135   .row
 136     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 137       .button-group
 138         button#peopleBtn(@click="openModalPeople()")
 139           | {{ st.tr["Who's there?"] }}
 140         button(@click="showNewchallengeForm()")
 141           | {{ st.tr["New game"] }}
 142   .row(v-if="presetChalls.length > 0")
 143     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 144       h4.text-center {{ st.tr["Preset challenges"] }}
 145       table
 146         thead
 147           tr
 148             th {{ st.tr["Variant"] }}
 149             th {{ st.tr["Cadence"] }}
 150             th {{ st.tr["Random?"] }}
 151             th
 152         tbody
 153           tr(
 154             v-for="pc in presetChalls"
 155             @click="newChallFromPreset(pc)"
 156           )
 157             td {{ pc.vname }}
 158             td {{ pc.cadence }}
 159             td(:class="getRandomnessClass(pc)")
 160             td.remove-preset(@click="removePresetChall($event, pc)")
 161               img(src="/images/icons/delete.svg")
 162   .row
 163     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 164       div#div2
 165         .button-group
 166           button.tabbtn#btnClive(@click="setDisplay('c','live',$event)")
 167             | {{ st.tr["Live challenges"] }}
 168           button.tabbtn#btnCcorr(@click="setDisplay('c','corr',$event)")
 169             | {{ st.tr["Correspondance challenges"] }}
 170         ChallengeList(
 171           v-show="cdisplay=='live'"
 172           :challenges="filterChallenges('live')"
 173           @click-challenge="clickChallenge"
 174         )
 175         ChallengeList(
 176           v-show="cdisplay=='corr'"
 177           :challenges="filterChallenges('corr')"
 178           @click-challenge="clickChallenge"
 179         )
 180       div#div3
 181         .button-group
 182           button.tabbtn#btnGlive(@click="setDisplay('g','live',$event)")
 183             | {{ st.tr["Live games"] }}
 184           button.tabbtn#btnGcorr(@click="setDisplay('g','corr',$event)")
 185             | {{ st.tr["Correspondance games"] }}
 186         GameList(
 187           v-show="gdisplay=='live'"
 188           :games="filterGames('live')"
 189           :showBoth="true"
 190           @show-game="showGame"
 191         )
 192         div(v-show="gdisplay=='corr'")
 193           GameList(
 194             :games="filterGames('corr')"
 195             :showBoth="true"
 196             @show-game="showGame"
 197           )
 198           button#loadMoreBtn(
 199             v-if="hasMore"
 200             @click="loadMoreCorr()"
 201           )
 202             | {{ st.tr["Load more"] }}
 203 </template>
 204
 205 <script>
 206 import { store } from "@/store";
 207 import { checkChallenge } from "@/data/challengeCheck";
 208 import { notify } from "@/utils/notifications";
 209 import { ArrayFun } from "@/utils/array";
 210 import { ajax } from "@/utils/ajax";
 211 import params from "@/parameters";
 212 import { getRandString, shuffle, randInt } from "@/utils/alea";
 213 import { getDiagram } from "@/utils/printDiagram";
 214 import Chat from "@/components/Chat.vue";
 215 import GameList from "@/components/GameList.vue";
 216 import ChallengeList from "@/components/ChallengeList.vue";
 217 import { GameStorage } from "@/utils/gameStorage";
 218 import { processModalClick } from "@/utils/modalClick";
 219 export default {
 220   name: "my-hall",
 221   components: {
 222     Chat,
 223     GameList,
 224     ChallengeList
 225   },
 226   data: function() {
 227     return {
 228       st: store.state,
 229       cdisplay: "live", //or corr
 230       gdisplay: "live",
 231       // timestamp of last showed (oldest) corr game:
 232       cursor: Number.MAX_SAFE_INTEGER,
 233       // hasMore == TRUE: a priori there could be more games to load
 234       hasMore: true,
 235       games: [],
 236       challenges: [],
 237       people: {},
 238       infoMessage: "",
 239       newchallenge: {
 240         fen: "",
 241         vid: parseInt(localStorage.getItem("vid")) || 0,
 242         to: "", //name of challenged player (if any)
 243         cadence: localStorage.getItem("cadence") || "",
 244         randomness: parseInt(localStorage.getItem("challRandomness")) || 2,
 245         // VariantRules object, stored to not interfere with
 246         // diagrams of targetted challenges:
 247         V: null,
 248         vname: "",
 249         diag: "", //visualizing FEN
 250         memorize: false //put settings in localStorage
 251       },
 252       focus: true,
 253       tchallDiag: "",
 254       curChallToAccept: {from: {}},
 255       presetChalls: JSON.parse(localStorage.getItem("presetChalls") || "[]"),
 256       conn: null,
 257       connexionString: "",
 258       socketCloseListener: 0,
 259       // Related to (killing of) self multi-connects:
 260       newConnect: {}
 261     };
 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.$route.path);
 310     this.conn = new WebSocket(this.connexionString);
 311     this.conn.onopen = connectAndPoll;
 312     this.conn.addEventListener("message", this.socketMessageListener);
 313     this.socketCloseListener = setInterval(
 314       () => {
 315         if (this.conn.readyState == 3) {
 316           this.conn.removeEventListener("message", this.socketMessageListener);
 317           this.conn = new WebSocket(this.connexionString);
 318           this.conn.addEventListener("message", this.socketMessageListener);
 319         }
 320       },
 321       1000
 322     );
 323   },
 324   mounted: function() {
 325     ["peopleWrap", "infoDiv", "newgameDiv"].forEach(eltName => {
 326       document.getElementById(eltName)
 327         .addEventListener("click", processModalClick);
 328     });
 329     document.querySelectorAll("#predefinedCadences > button").forEach(b => {
 330       b.addEventListener("click", () => {
 331         this.newchallenge.cadence = b.innerHTML;
 332       });
 333     });
 334     const dispCorr = this.$route.query["disp"];
 335     const showCtype =
 336       dispCorr || localStorage.getItem("type-challenges") || "live";
 337     const showGtype =
 338       dispCorr || localStorage.getItem("type-games") || "live";
 339     this.setDisplay('c', showCtype);
 340     this.setDisplay('g', showGtype);
 341     // Ask server for current corr games (all but mines)
 342     this.loadMoreCorr();
 343     // Also ask for corr challenges (open + sent by/to me)
 344     // List them all, because they are not supposed to be that many (TODO?)
 345     ajax(
 346       "/challenges",
 347       "GET",
 348       {
 349         data: { uid: this.st.user.id },
 350         success: (response) => {
 351           if (
 352             response.challenges.length > 0 &&
 353             this.challenges.length == 0 &&
 354             this.cdisplay == "live"
 355           ) {
 356             document
 357               .getElementById("btnCcorr")
 358               .classList.add("somethingnew");
 359           }
 360           // Gather all senders names, and then retrieve full identity:
 361           // (TODO [perf]: some might be online...)
 362           let names = {};
 363           response.challenges.forEach(c => {
 364             if (c.uid != this.st.user.id) names[c.uid] = "";
 365             else if (!!c.target && c.target != this.st.user.id)
 366               names[c.target] = "";
 367           });
 368           const addChallenges = () => {
 369             names[this.st.user.id] = this.st.user.name; //in case of
 370             this.challenges = this.challenges.concat(
 371               response.challenges.map(c => {
 372                 const from = { name: names[c.uid], id: c.uid }; //or just name
 373                 const type = this.classifyObject(c);
 374                 const vname = this.getVname(c.vid);
 375                 return Object.assign(
 376                   {},
 377                   {
 378                     type: type,
 379                     vname: vname,
 380                     from: from,
 381                     to: c.target ? names[c.target] : ""
 382                   },
 383                   c
 384                 );
 385               })
 386             );
 387           };
 388           if (Object.keys(names).length > 0) {
 389             ajax(
 390               "/users",
 391               "GET",
 392               {
 393                 data: { ids: Object.keys(names).join(",") },
 394                 success: (response2) => {
 395                   response2.users.forEach(u => {
 396                     names[u.id] = u.name;
 397                   });
 398                   addChallenges();
 399                 }
 400               }
 401             );
 402           } else addChallenges();
 403         }
 404       }
 405     );
 406   },
 407   beforeDestroy: function() {
 408     this.cleanBeforeDestroy();
 409   },
 410   methods: {
 411     cleanBeforeDestroy: function() {
 412       clearInterval(this.socketCloseListener);
 413       document.removeEventListener('visibilitychange', this.visibilityChange);
 414       window.removeEventListener('focus', this.onFocus);
 415       window.removeEventListener('blur', this.onBlur);
 416       window.removeEventListener("beforeunload", this.cleanBeforeDestroy);
 417       this.conn.removeEventListener("message", this.socketMessageListener);
 418       this.send("disconnect");
 419       this.conn = null;
 420     },
 421     getRandomnessClass: function(pc) {
 422       return {
 423         ["random-" + pc.randomness]: true
 424       };
 425     },
 426     openModalPeople: function() {
 427       window.doClick("modalPeople");
 428       document.getElementById("inputChat").focus();
 429     },
 430     anonymousCount: function() {
 431       let count = 0;
 432       Object.values(this.people).forEach(p => {
 433         // Do not cound people who did not send their identity yet:
 434         count += (!p.name && p.id === 0) ? 1 : 0;
 435       });
 436       return count;
 437     },
 438     visibilityChange: function() {
 439       // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
 440       this.focus = (document.visibilityState == "visible");
 441       this.send(this.focus ? "getfocus" : "losefocus");
 442     },
 443     onFocus: function() {
 444       this.focus = true;
 445       this.send("getfocus");
 446     },
 447     onBlur: function() {
 448       this.focus = false;
 449       this.send("losefocus");
 450     },
 451     partialResetNewchallenge: function() {
 452       // Reset potential target and custom FEN:
 453       this.newchallenge.to = "";
 454       this.newchallenge.fen = "";
 455       this.newchallenge.diag = "";
 456       this.newchallenge.memorize = false;
 457     },
 458     showNewchallengeForm: function() {
 459       this.partialResetNewchallenge();
 460       window.doClick("modalNewgame");
 461     },
 462     addPresetChall: function(chall) {
 463       // Add only if not already existing:
 464       if (this.presetChalls.some(c =>
 465         c.vid == chall.vid &&
 466         c.cadence == chall.cadence &&
 467         c.randomness == chall.randomness
 468       )) {
 469         return;
 470       }
 471       const L = this.presetChalls.length;
 472       this.presetChalls.push({
 473         index: L,
 474         vid: chall.vid,
 475         vname: chall.vname, //redundant, but easier
 476         cadence: chall.cadence,
 477         randomness: chall.randomness
 478       });
 479       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 480     },
 481     removePresetChall: function(e, pchall) {
 482       e.stopPropagation();
 483       const pchallIdx =
 484         this.presetChalls.findIndex(pc => pc.index == pchall.index);
 485       this.presetChalls.splice(pchallIdx, 1);
 486       localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
 487     },
 488     tchallButtonsMargin: function() {
 489       if (!!this.curChallToAccept.fen) return { "margin-top": "10px" };
 490       return {};
 491     },
 492     changeChallTarget: function() {
 493       if (!this.newchallenge.to) {
 494         // Reset potential FEN + diagram
 495         this.newchallenge.fen = "";
 496         this.newchallenge.diag = "";
 497       }
 498     },
 499     cadenceFocusIfOpened: function() {
 500       if (event.target.checked)
 501         document.getElementById("cadence").focus();
 502     },
 503     send: function(code, obj) {
 504       if (!!this.conn && this.conn.readyState == 1) {
 505         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
 506       }
 507     },
 508     getVname: function(vid) {
 509       const variant = this.st.variants.find(v => v.id == vid);
 510       // this.st.variants might be uninitialized (variant == null)
 511       return variant ? variant.name : "";
 512     },
 513     filterChallenges: function(type) {
 514       return this.challenges.filter(c => c.type == type);
 515     },
 516     filterGames: function(type) {
 517       return this.games.filter(g => g.type == type);
 518     },
 519     // o: challenge or game
 520     classifyObject: function(o) {
 521       // Consider imports as live games (TODO)
 522       if (!!o.id.match(/^i/)) return "live";
 523       return o.cadence.indexOf("d") === -1 ? "live" : "corr";
 524     },
 525     setDisplay: function(letter, type, e) {
 526       this[letter + "display"] = type;
 527       localStorage.setItem(
 528         "type-" + (letter == "c" ? "challenges" : "games"),
 529         type
 530       );
 531       let elt = e
 532         ? e.target
 533         : document.getElementById("btn" + letter.toUpperCase() + type);
 534       elt.classList.add("active");
 535       elt.classList.remove("somethingnew"); //in case of
 536       if (!!elt.previousElementSibling)
 537         elt.previousElementSibling.classList.remove("active");
 538       else elt.nextElementSibling.classList.remove("active");
 539     },
 540     isGamer: function(sid) {
 541       return Object.values(this.people[sid].tmpIds)
 542         .some(v => v.focus && v.page.indexOf("/game/") >= 0);
 543     },
 544     isFocusedOnHall: function(sid) {
 545       return (
 546         // This is meant to challenge people, thus the next 2 conditions:
 547         this.st.user.id > 0 &&
 548         sid != this.st.user.sid &&
 549         Object.values(this.people[sid].tmpIds)
 550           .some(v => v.focus && v.page == "/")
 551       );
 552     },
 553     challenge: function(sid) {
 554       this.partialResetNewchallenge();
 555       // Available, in Hall
 556       this.newchallenge.to = this.people[sid].name;
 557       // TODO: also store target sid to not re-search for it
 558       document.getElementById("modalPeople").checked = false;
 559       window.doClick("modalNewgame");
 560     },
 561     watchGame: function(sid) {
 562       // In some game, maybe playing maybe not: show a random one
 563       let gids = [];
 564       Object.values(this.people[sid].tmpIds).forEach(v => {
 565         if (v.focus) {
 566           const matchGid = v.page.match(/[a-zA-Z0-9]+$/);
 567           if (!!matchGid) gids.push(matchGid[0]);
 568         }
 569       });
 570       const gid = gids[Math.floor(Math.random() * gids.length)];
 571       const game = this.games.find(g => g.id == gid);
 572       if (!!game) this.showGame(game);
 573       else this.$router.push("/game/" + gid); //game vs. me
 574     },
 575     showGame: function(g) {
 576       // NOTE: we are an observer, since only games I don't play are shown here
 577       // ==> Moves sent by connected remote player(s) if live game
 578       this.$router.push("/game/" + g.id);
 579     },
 580     resetSocialColor: function() {
 581       // TODO: this is called twice, once on opening an once on closing
 582       document.getElementById("peopleBtn").classList.remove("somethingnew");
 583     },
 584     processChat: function(chat) {
 585       this.send("newchat", { data: chat });
 586     },
 587     getOppsid: function(c) {
 588       let oppsid = c.from.sid; //may not be defined if corr + offline opp
 589       if (!oppsid) {
 590         oppsid = Object.keys(this.people).find(
 591           sid => this.people[sid].id == c.from.id
 592         );
 593       }
 594       return oppsid;
 595     },
 596     // Messaging center:
 597     socketMessageListener: function(msg) {
 598       if (!this.conn) return;
 599       const data = JSON.parse(msg.data);
 600       switch (data.code) {
 601         case "pollclientsandgamers": {
 602           // TODO: shuffling and random filtering on server,
 603           // if the room is really crowded.
 604           Object.keys(data.sockIds).forEach(sid => {
 605             if (sid != this.st.user.sid) {
 606               // Pick a target tmpId (+page) at random:
 607               const pt = Object.values(data.sockIds[sid]);
 608               const randPage = pt[randInt(pt.length)].page;
 609               this.send(
 610                 "askidentity",
 611                 {
 612                   target: sid,
 613                   page: randPage
 614                 }
 615               );
 616             }
 617             if (!this.people[sid])
 618               // Do not set name or id: identity unknown yet
 619               this.people[sid] = { tmpIds: data.sockIds[sid] };
 620             else
 621               Object.assign(this.people[sid].tmpIds, data.sockIds[sid]);
 622             if (Object.values(data.sockIds[sid]).some(v => v.page == "/"))
 623               // Peer is in Hall
 624               this.send("askchallenges", { target: sid });
 625             Object.values(data.sockIds[sid]).forEach(v => {
 626               if (
 627                 v.page.indexOf("/game/") >= 0 &&
 628                 !v.page.match(/\/[0-9]+$/)
 629               ) {
 630                 // Peer is in Game: ask only if live game
 631                 this.send("askgame", { target: sid, page: v.page });
 632               }
 633             });
 634           });
 635           break;
 636         }
 637         case "connect":
 638         case "gconnect": {
 639           const page = data.page || "/";
 640           if (data.code == "connect") {
 641             // Ask challenges only on first connexion:
 642             if (!this.people[data.from[0]])
 643               this.send("askchallenges", { target: data.from[0] });
 644           }
 645           // Ask game only if live:
 646           else if (!page.match(/\/[0-9]+$/))
 647             this.send("askgame", { target: data.from[0], page: page });
 648           if (!this.people[data.from[0]]) {
 649             this.$set(
 650               this.people,
 651               data.from[0],
 652               {
 653                 tmpIds: {
 654                   [data.from[1]]: { page: page, focus: true }
 655                 }
 656               }
 657             );
 658             // For self multi-connects tests:
 659             this.newConnect[data.from[0]] = true;
 660             this.send("askidentity", { target: data.from[0], page: page });
 661           } else {
 662             this.people[data.from[0]].tmpIds[data.from[1]] =
 663               { page: page, focus: true };
 664             this.$forceUpdate(); //TODO: shouldn't be required
 665           }
 666           break;
 667         }
 668         case "disconnect":
 669         case "gdisconnect": {
 670           // If the user reloads the page twice very quickly
 671           // (experienced with Firefox), the first reload won't have time to
 672           // connect but will trigger a "close" event anyway.
 673           // ==> Next check is required.
 674           if (!this.people[data.from[0]]) return;
 675           delete this.people[data.from[0]].tmpIds[data.from[1]];
 676           if (Object.keys(this.people[data.from[0]].tmpIds).length == 0)
 677             this.$delete(this.people, data.from[0]);
 678           else this.$forceUpdate(); //TODO: shouldn't be required
 679           if (data.code == "disconnect") {
 680             // Remove the live challenges sent by this player:
 681             ArrayFun.remove(
 682               this.challenges,
 683               c => c.type == "live" && c.from.sid == data.from[0],
 684               "all"
 685             );
 686           } else {
 687             // Remove the matching live game if now unreachable
 688             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
 689             // Corr games are always reachable:
 690             if (!gid.match(/^[0-9]+$/)) {
 691               // Live games are reachable if someone is on the game page
 692               if (Object.values(this.people).every(p =>
 693                 Object.values(p.tmpIds).every(v => v.page != data.page))
 694               ) {
 695                 ArrayFun.remove(this.games, g => g.id == gid);
 696               }
 697             }
 698           }
 699           break;
 700         }
 701         case "getfocus": {
 702           let player = this.people[data.from[0]];
 703           // If user reload a page, focus may arrive earlier than connect
 704           if (!!player) {
 705             player.tmpIds[data.from[1]].focus = true;
 706             this.$forceUpdate(); //TODO: shouldn't be required
 707           }
 708           break;
 709         }
 710         case "losefocus": {
 711           let player = this.people[data.from[0]];
 712           if (!!player) {
 713             player.tmpIds[data.from[1]].focus = false;
 714             this.$forceUpdate(); //TODO: shouldn't be required
 715           }
 716           break;
 717         }
 718         case "askidentity": {
 719           // Request for identification
 720           const me = {
 721             // Decompose to avoid revealing email
 722             name: this.st.user.name,
 723             sid: this.st.user.sid,
 724             id: this.st.user.id
 725           };
 726           this.send("identity", { data: me, target: data.from });
 727           break;
 728         }
 729         case "identity": {
 730           const user = data.data;
 731           let player = this.people[user.sid];
 732           // player.tmpIds is already set
 733           player.id = user.id;
 734           player.name = user.name;
 735           // TODO: this.$set(people, ...) fails. So forceUpdate.
 736           //       But this shouldn't be like that!
 737           this.$forceUpdate();
 738           // If I multi-connect, kill current connexion if no mark (I'm older)
 739           if (this.newConnect[user.sid]) {
 740             delete this.newConnect[user.sid];
 741             if (
 742               user.id > 0 &&
 743               user.id == this.st.user.id &&
 744               user.sid != this.st.user.sid
 745             ) {
 746               // I logged in elsewhere:
 747               this.cleanBeforeDestroy();
 748               alert(this.st.tr["New connexion detected: tab now offline"]);
 749             }
 750           }
 751           break;
 752         }
 753         case "askchallenges": {
 754           // Send my current live challenges (if any)
 755           const myChallenges = this.challenges
 756             .filter(c =>
 757               c.from.sid == this.st.user.sid && c.type == "live"
 758             )
 759             .map(c => {
 760               // NOTE: in principle, should only send targeted challenge to the
 761               // target. But we may not know yet the identity of the target
 762               // (just name), so can't decide if data.from is the target.
 763               return {
 764                 id: c.id,
 765                 from: this.st.user.sid,
 766                 to: c.to,
 767                 randomness: c.randomness,
 768                 fen: c.fen,
 769                 vid: c.vid,
 770                 cadence: c.cadence,
 771                 added: c.added
 772               };
 773             });
 774           if (myChallenges.length > 0)
 775             this.send("challenges", { data: myChallenges, target: data.from });
 776           break;
 777         }
 778         case "challenges": //after "askchallenges"
 779           data.data.forEach(this.addChallenge);
 780           break;
 781         case "newchallenge":
 782           this.addChallenge(data.data);
 783           break;
 784         case "refusechallenge": {
 785           const cid = data.data;
 786           ArrayFun.remove(this.challenges, c => c.id == cid);
 787           alert(this.st.tr["Challenge declined"]);
 788           break;
 789         }
 790         case "deletechallenge_s": {
 791           // NOTE: the challenge(s) may be already removed
 792           const cref = data.data;
 793           if (!!cref.cid)
 794             ArrayFun.remove(this.challenges, c => c.id == cref.cid);
 795           else if (!!cref.sids) {
 796             cref.sids.forEach(s => {
 797               ArrayFun.remove(
 798                 this.challenges,
 799                 c => c.type == "live" && c.from.sid == s,
 800                 "all"
 801               );
 802             });
 803           }
 804           break;
 805         }
 806         case "game": // Individual request
 807         case "newgame": {
 808           const game = data.data;
 809           // Ignore games where I play (will go in MyGames page),
 810           // and also games that I already received.
 811           if (
 812             game.players.every(p =>
 813               p.sid != this.st.user.sid && p.id != this.st.user.id) &&
 814             this.games.findIndex(g => g.id == game.id) == -1
 815           ) {
 816             let newGame = game;
 817             newGame.type = this.classifyObject(game);
 818             newGame.vname = this.getVname(game.vid);
 819             if (!game.score)
 820               // New game from Hall
 821               newGame.score = "*";
 822             this.games.push(newGame);
 823             if (
 824               (newGame.type == "live" && this.gdisplay == "corr") ||
 825               (newGame.type == "corr" && this.gdisplay == "live")
 826             ) {
 827               document
 828                 .getElementById("btnG" + newGame.type)
 829                 .classList.add("somethingnew");
 830             }
 831           }
 832           break;
 833         }
 834         case "result": {
 835           let g = this.games.find(g => g.id == data.gid);
 836           if (!!g) g.score = data.score;
 837           break;
 838         }
 839         case "startgame": {
 840           // New game just started, I'm involved
 841           const gameInfo = data.data;
 842           if (this.classifyObject(gameInfo) == "live")
 843             this.startNewGame(gameInfo);
 844           else {
 845             this.infoMessage =
 846               this.st.tr["New correspondance game:"] + " " +
 847               "<a href='#/game/" + gameInfo.id + "'>" +
 848               "#/game/" + gameInfo.id + "</a>";
 849             document.getElementById("modalInfo").checked = true;
 850           }
 851           break;
 852         }
 853         case "newchat":
 854           this.$refs["chatcomp"].newChat(data.data);
 855           if (!document.getElementById("modalPeople").checked)
 856             document.getElementById("peopleBtn").classList.add("somethingnew");
 857           break;
 858       }
 859     },
 860     loadMoreCorr: function() {
 861       ajax(
 862         "/observedgames",
 863         "GET",
 864         {
 865           data: {
 866             uid: this.st.user.id,
 867             cursor: this.cursor
 868           },
 869           success: (res) => {
 870             const L = res.games.length;
 871             if (L > 0) {
 872               if (
 873                 this.cursor == Number.MAX_SAFE_INTEGER &&
 874                 this.games.length == 0 &&
 875                 this.gdisplay == "live"
 876               ) {
 877                 // First loading: show indicators
 878                 document
 879                   .getElementById("btnGcorr")
 880                   .classList.add("somethingnew");
 881               }
 882               this.cursor = res.games[L - 1].created;
 883               let moreGames = res.games.map(g => {
 884                 const vname = this.getVname(g.vid);
 885                 return Object.assign(
 886                   {},
 887                   g,
 888                   {
 889                     type: "corr",
 890                     vname: vname
 891                   }
 892                 );
 893               });
 894               this.games = this.games.concat(moreGames);
 895             } else this.hasMore = false;
 896           }
 897         }
 898       );
 899     },
 900     // Challenge lifecycle:
 901     addChallenge: function(chall) {
 902       // NOTE about next condition: see "askchallenges" case.
 903       if (
 904         !chall.to ||
 905         (this.people[chall.from].id > 0 &&
 906           (chall.from == this.st.user.sid || chall.to == this.st.user.name))
 907       ) {
 908         let newChall = Object.assign({}, chall);
 909         newChall.type = this.classifyObject(chall);
 910         newChall.randomness = chall.randomness;
 911         newChall.added = Date.now();
 912         let fromValues = Object.assign({}, this.people[chall.from]);
 913         delete fromValues["pages"]; //irrelevant in this context
 914         newChall.from = Object.assign({ sid: chall.from }, fromValues);
 915         newChall.vname = this.getVname(newChall.vid);
 916         this.challenges.push(newChall);
 917         if (
 918           (newChall.type == "live" && this.cdisplay == "corr") ||
 919           (newChall.type == "corr" && this.cdisplay == "live")
 920         ) {
 921           document
 922             .getElementById("btnC" + newChall.type)
 923             .classList.add("somethingnew");
 924         }
 925         if (!!chall.to) {
 926           notify(
 927             "New challenge",
 928             // fromValues.name should exist since the player is online, but
 929             // let's consider there is some chance that the challenge arrives
 930             // right after we connected and before receiving the poll result:
 931             { body: "from " + (fromValues.name || "unknown yet...") }
 932           );
 933         }
 934       }
 935     },
 936     loadNewchallVariant: async function(cb) {
 937       const vname = this.getVname(this.newchallenge.vid);
 938       await import("@/variants/" + vname + ".js")
 939       .then((vModule) => {
 940         window.V = vModule[vname + "Rules"];
 941         this.newchallenge.V = window.V;
 942         this.newchallenge.vname = vname;
 943         if (!!cb) cb();
 944       });
 945     },
 946     trySetNewchallDiag: function() {
 947       if (!this.newchallenge.fen) {
 948         this.newchallenge.diag = "";
 949         return;
 950       }
 951       // If vid > 0 then the variant is loaded (function above):
 952       window.V = this.newchallenge.V;
 953       if (
 954         this.newchallenge.vid > 0 &&
 955         !!this.newchallenge.fen &&
 956         V.IsGoodFen(this.newchallenge.fen)
 957       ) {
 958         const parsedFen = V.ParseFen(this.newchallenge.fen);
 959         this.newchallenge.diag = getDiagram({
 960           position: parsedFen.position,
 961           orientation: parsedFen.turn
 962         });
 963       } else this.newchallenge.diag = "";
 964     },
 965     newChallFromPreset(pchall) {
 966       this.partialResetNewchallenge();
 967       this.newchallenge.vid = pchall.vid;
 968       this.newchallenge.cadence = pchall.cadence;
 969       this.newchallenge.randomness = pchall.randomness;
 970       this.loadNewchallVariant(this.issueNewChallenge);
 971     },
 972     issueNewChallenge: async function() {
 973       if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
 974         this.newchallenge.cadence += "+0"; //assume minutes, no increment
 975       const ctype = this.classifyObject(this.newchallenge);
 976       // TODO: cadence still unchecked so ctype could be wrong...
 977       let error = "";
 978       if (!this.newchallenge.vid)
 979         error = this.st.tr["Please select a variant"];
 980       else if (ctype == "corr" && this.st.user.id <= 0)
 981         error = this.st.tr["Please log in to play correspondance games"];
 982       else if (!!this.newchallenge.to) {
 983         if (this.newchallenge.to == this.st.user.name)
 984           error = this.st.tr["Self-challenge is forbidden"];
 985         else if (
 986           ctype == "live" &&
 987           Object.values(this.people).every(p => p.name != this.newchallenge.to)
 988         ) {
 989           error = this.newchallenge.to + " " + this.st.tr["is not online"];
 990         }
 991       }
 992       if (error) {
 993         alert(error);
 994         return;
 995       }
 996       window.V = this.newchallenge.V;
 997       error = checkChallenge(this.newchallenge);
 998       if (error) {
 999         alert(error);
1000         return;
1001       }
1002       // NOTE: "from" information is not required here
1003       let chall = Object.assign({}, this.newchallenge);
1004       // Add only if not already issued (not counting target or FEN):
1005       if (this.challenges.some(c =>
1006         (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
1007         c.vid == chall.vid &&
1008         c.cadence == chall.cadence &&
1009         c.randomness == chall.randomness
1010       )) {
1011         alert(this.st.tr["Challenge already exists"]);
1012         return;
1013       }
1014       if (this.newchallenge.memorize) this.addPresetChall(this.newchallenge);
1015       delete chall["V"];
1016       delete chall["diag"];
1017       const finishAddChallenge = cid => {
1018         chall.id = cid || "c" + getRandString();
1019         const MAX_ALLOWED_CHALLS = 3;
1020         // Remove oldest challenge if 3 found: only 3 at a time of a given type
1021         let countMyChalls = 0;
1022         let challToDelIdx = 0;
1023         let oldestAdded = Number.MAX_SAFE_INTEGER;
1024         for (let i=0; i<this.challenges.length; i++) {
1025           const c = this.challenges[i];
1026           if (
1027             c.type == ctype &&
1028             (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id)
1029           ) {
1030             countMyChalls++;
1031             if (c.added < oldestAdded) {
1032               challToDelIdx = i;
1033               oldestAdded = c.added;
1034             }
1035           }
1036         }
1037         if (countMyChalls >= MAX_ALLOWED_CHALLS) {
1038           this.send(
1039             "deletechallenge_s",
1040             { data: { cid: this.challenges[challToDelIdx].id } }
1041           );
1042           if (ctype == "corr") {
1043             ajax(
1044               "/challenges",
1045               "DELETE",
1046               { data: { id: this.challenges[challToDelIdx].id } }
1047             );
1048           }
1049           this.challenges.splice(challToDelIdx, 1);
1050         }
1051         this.send("newchallenge", {
1052           data: Object.assign({ from: this.st.user.sid }, chall)
1053         });
1054         // Add new challenge:
1055         chall.from = {
1056           sid: this.st.user.sid,
1057           id: this.st.user.id,
1058           name: this.st.user.name
1059         };
1060         chall.added = Date.now();
1061         // NOTE: vname and type are redundant (deduced from cadence + vid)
1062         chall.type = ctype;
1063         chall.vname = this.newchallenge.vname;
1064         this.challenges.push(chall);
1065         // Remember cadence  + vid for quicker further challenges:
1066         localStorage.setItem("cadence", chall.cadence);
1067         localStorage.setItem("vid", chall.vid);
1068         localStorage.setItem("challRandomness", chall.randomness);
1069         document.getElementById("modalNewgame").checked = false;
1070         // Show the challenge if not on current display
1071         if (
1072           (ctype == "live" && this.cdisplay == "corr") ||
1073           (ctype == "corr" && this.cdisplay == "live")
1074         ) {
1075           this.setDisplay('c', ctype);
1076         }
1077       };
1078       if (ctype == "live") {
1079         // Live challenges have a random ID
1080         finishAddChallenge(null);
1081       } else {
1082         // Correspondance game: send challenge to server
1083         ajax(
1084           "/challenges",
1085           "POST",
1086           {
1087             data: { chall: chall },
1088             success: (response) => {
1089               finishAddChallenge(response.id);
1090             }
1091           }
1092         );
1093       }
1094     },
1095     // Callback function after a diagram was showed to accept
1096     // or refuse targetted challenge:
1097     decisionChallenge: function(accepted) {
1098       this.curChallToAccept.accepted = accepted;
1099       this.finishProcessingChallenge(this.curChallToAccept);
1100       document.getElementById("modalAccept").checked = false;
1101     },
1102     finishProcessingChallenge: function(c) {
1103       if (c.accepted) {
1104         c.seat = {
1105           sid: this.st.user.sid,
1106           id: this.st.user.id,
1107           name: this.st.user.name
1108         };
1109         this.launchGame(c);
1110         if (c.type == "live") {
1111           // Remove all live challenges of both players
1112           this.send(
1113             "deletechallenge_s",
1114             { data: { sids: [c.from.sid, c.seat.sid] } }
1115           );
1116         }
1117         else
1118           // Corr challenge: just remove the challenge
1119           this.send("deletechallenge_s", { data: { cid: c.id } });
1120       } else {
1121         const oppsid = this.getOppsid(c);
1122         if (!!oppsid)
1123           this.send("refusechallenge", { data: c.id, target: oppsid });
1124         if (c.type == "corr") {
1125           ajax(
1126             "/challenges",
1127             "DELETE",
1128             { data: { id: c.id } }
1129           );
1130         }
1131         this.send("deletechallenge_s", { data: { cid: c.id } });
1132       }
1133     },
1134     // TODO: if several players click same challenge at the same time: problem
1135     clickChallenge: async function(c) {
1136       const myChallenge =
1137         c.from.sid == this.st.user.sid || //live
1138         (this.st.user.id > 0 && c.from.id == this.st.user.id); //corr
1139       if (!myChallenge) {
1140         if (c.type == "corr" && this.st.user.id <= 0) {
1141           alert(this.st.tr["Please log in to accept corr challenges"]);
1142           return;
1143         }
1144         c.accepted = true;
1145         await import("@/variants/" + c.vname + ".js")
1146         .then((vModule) => {
1147           window.V = vModule[c.vname + "Rules"];
1148           if (!!c.to) {
1149             // c.to == this.st.user.name (connected)
1150             if (!!c.fen) {
1151               const parsedFen = V.ParseFen(c.fen);
1152               c.mycolor = V.GetOppCol(parsedFen.turn);
1153               this.tchallDiag = getDiagram({
1154                 position: parsedFen.position,
1155                 orientation: c.mycolor
1156               });
1157             }
1158             this.curChallToAccept = c;
1159             document.getElementById("modalAccept").checked = true;
1160           }
1161           else this.finishProcessingChallenge(c);
1162         });
1163       }
1164       else {
1165         // My challenge
1166         if (c.type == "corr") {
1167           ajax(
1168             "/challenges",
1169             "DELETE",
1170             { data: { id: c.id } }
1171           );
1172         }
1173         this.send("deletechallenge_s", { data: { cid: c.id } });
1174       }
1175       // In all cases, the challenge is consumed:
1176       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
1177     },
1178     // NOTE: when launching game, the challenge is already being deleted
1179     launchGame: function(c) {
1180       // White player index 0, black player index 1:
1181       const players =
1182         !!c.mycolor
1183           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
1184           : shuffle([c.from, c.seat]);
1185       // These game informations will be shared
1186       let gameInfo = {
1187         id: getRandString(),
1188         fen: c.fen || V.GenRandInitFen(c.randomness),
1189         randomness: c.randomness, //for rematch
1190         players: players,
1191         vid: c.vid,
1192         cadence: c.cadence
1193       };
1194       const notifyNewgame = () => {
1195         const oppsid = this.getOppsid(c);
1196         if (!!oppsid)
1197           // Opponent is online
1198           this.send("startgame", { data: gameInfo, target: oppsid });
1199         // If new corr game, notify Hall (except opponent and me)
1200         if (c.type == "corr") {
1201           this.send(
1202             "newgame",
1203             {
1204               data: gameInfo,
1205               excluded: [this.st.user.sid, oppsid]
1206             }
1207           );
1208         }
1209         // Notify MyGames page:
1210         this.send(
1211           "notifynewgame",
1212           {
1213             data: gameInfo,
1214             targets: gameInfo.players
1215           }
1216         );
1217         // NOTE: no need to send the game to the room, since I'll connect
1218         // on game just after, the main Hall will be notified.
1219       };
1220       if (c.type == "live") {
1221         notifyNewgame();
1222         this.startNewGame(gameInfo);
1223       } else {
1224         // corr: game only on server
1225         ajax(
1226           "/games",
1227           "POST",
1228           {
1229             // cid is useful to delete the challenge:
1230             data: {
1231               gameInfo: gameInfo,
1232               cid: c.id
1233             },
1234             success: (response) => {
1235               gameInfo.id = response.id;
1236               notifyNewgame();
1237               this.$router.push("/game/" + response.id);
1238             }
1239           }
1240         );
1241       }
1242     },
1243     // NOTE: for live games only (corr games start on the server)
1244     startNewGame: function(gameInfo) {
1245       const game = Object.assign(
1246         {},
1247         gameInfo,
1248         {
1249           // (other) Game infos: constant
1250           fenStart: gameInfo.fen,
1251           vname: this.getVname(gameInfo.vid),
1252           created: Date.now(),
1253           // Game state (including FEN): will be updated
1254           moves: [],
1255           clocks: [-1, -1], //-1 = unstarted
1256           chats: [],
1257           score: "*"
1258         }
1259       );
1260       setTimeout(
1261         () => {
1262           const myIdx = (game.players[0].sid == this.st.user.sid ? 0 : 1);
1263           GameStorage.add(game, (err) => {
1264             // If an error occurred, game is not added: a tab already
1265             // added the game. Maybe a focused one, maybe not.
1266             // We know for sure that it emitted the gong start sound.
1267             // ==> Do not play it again.
1268             if (!err && this.st.settings.sound)
1269               new Audio("/sounds/newgame.flac").play().catch(() => {});
1270             if (!this.focus) {
1271               notify(
1272                 "New live game",
1273                 { body: "vs " + game.players[1-myIdx].name || "@nonymous" }
1274               );
1275             }
1276             this.$router.push("/game/" + gameInfo.id);
1277           });
1278         },
1279         this.focus ? 500 + 1000 * Math.random() : 0
1280       );
1281     }
1282   }
1283 };
1284 </script>
1285
1286 <style lang="sass" scoped>
1287 .active
1288   color: #42a983
1289
1290 #infoDiv > .card
1291   padding: 15px 0
1292   max-width: 430px
1293
1294 #newgameDiv > .card, #acceptDiv > .card
1295   max-width: 767px
1296   max-height: 100%
1297
1298 div#peopleWrap > .card
1299   max-height: 100%
1300
1301 @media screen and (min-width: 1281px)
1302   div#peopleWrap > .card
1303     max-width: 66.67%
1304
1305 @media screen and (max-width: 1280px)
1306   div#peopleWrap > .card
1307     max-width: 83.33%
1308
1309 @media screen and (max-width: 767px)
1310   div#peopleWrap > .card
1311     max-width: 100%
1312
1313 #players
1314   width: 50%
1315   position: relative
1316   float: left
1317
1318 #chat
1319   width: 50%
1320   float: left
1321   position: relative
1322
1323 @media screen and (max-width: 767px)
1324   #players, #chats
1325     width: 100%
1326
1327 #chat > .card
1328   max-width: 100%
1329   margin: 0;
1330   border: none;
1331
1332 #players > p
1333   margin-left: 5px
1334
1335 .anonymous
1336   font-style: italic
1337
1338 button.player-action
1339   margin-left: 32px
1340
1341 .somethingnew
1342   background-color: #c5fefe !important
1343
1344 .tabbtn
1345   background-color: #f9faee
1346
1347 button.acceptBtn
1348   background-color: lightgreen
1349 button.refuseBtn
1350   background-color: red
1351
1352 #buttonsTchall
1353   // margin-top set dynamically (depends if diagram showed or not)
1354   & > button > span
1355     width: 100%
1356     text-align: center
1357
1358 .variantName
1359   font-weight: bold
1360
1361 .diagram
1362   margin: 0 auto
1363   max-width: 400px
1364   // width: 100% required for Firefox
1365   width: 100%
1366
1367 #inputFen
1368   width: 100%
1369
1370 #div2, #div3
1371   margin-top: 15px
1372 @media screen and (max-width: 767px)
1373   #div2, #div3
1374     margin-top: 0
1375
1376 tr > td
1377   &.random-0
1378     background-color: #FF5733
1379   &.random-1
1380     background-color: #2B63B4
1381   &.random-2
1382     background-color: #33B42B
1383
1384 @media screen and (max-width: 767px)
1385   h4
1386     margin: 5px 0
1387
1388 button#loadMoreBtn
1389   display: block
1390   margin: 0 auto
1391
1392 td.remove-preset
1393   background-color: lightgrey
1394   text-align: center
1395   & > img
1396     height: 1em
1397 </style>