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.text-center
  14       p
  15         span.variantName {{ curChallToAccept.vname }}
  16         span {{ curChallToAccept.cadence }}
  17         span {{ st.tr["with"] + " " + curChallToAccept.from.name }}
  18       .diagram(v-html="tchallDiag")
  19       .button-group#buttonsTchall
  20         button.acceptBtn(@click="decisionChallenge(true)") {{ st.tr["Accept challenge?"] }}
  21         button.refuseBtn(@click="decisionChallenge(false)") {{ st.tr["Refuse"] }}
  22   input#modalNewgame.modal(
  23     type="checkbox"
  24     @change="cadenceFocusIfOpened($event)"
  25   )
  26   div#newgameDiv(
  27     role="dialog"
  28     data-checkbox="modalNewgame"
  29   )
  30     .card
  31       label#closeNewgame.modal-close(for="modalNewgame")
  32       div(@keyup.enter="newChallenge()")
  33         fieldset
  34           label(for="selectVariant") {{ st.tr["Variant"] }} *
  35           select#selectVariant(
  36             @change="loadNewchallVariant(trySetNewchallDiag)"
  37             v-model="newchallenge.vid"
  38           )
  39             option(
  40               v-for="v in st.variants"
  41               :value="v.id"
  42               :selected="newchallenge.vid==v.id"
  43             )
  44               | {{ v.name }}
  45         fieldset
  46           label(for="cadence") {{ st.tr["Cadence"] }} *
  47           div#predefinedCadences
  48             button(type="button") 15+5
  49             button(type="button") 45+30
  50             button(type="button") 3d
  51             button(type="button") 7d
  52           input#cadence(
  53             type="text"
  54             v-model="newchallenge.cadence"
  55             placeholder="5+0, 1h+30s, 5d ..."
  56           )
  57         fieldset
  58           label(for="selectRandomLevel") {{ st.tr["Randomness"] }}
  59           select#selectRandomLevel(v-model="newchallenge.randomness")
  60             option(value="0") {{ st.tr["Deterministic"] }}
  61             option(value="1") {{ st.tr["Symmetric random"] }}
  62             option(value="2") {{ st.tr["Asymmetric random"] }}
  63         fieldset(v-if="st.user.id > 0")
  64           label(for="selectPlayers") {{ st.tr["Play with?"] }}
  65           input#selectPlayers(
  66             type="text"
  67             v-model="newchallenge.to"
  68           )
  69         fieldset(v-if="st.user.id > 0 && newchallenge.to.length > 0")
  70           input#inputFen(
  71             placeholder="FEN"
  72             @input="trySetNewchallDiag()"
  73             type="text"
  74             v-model="newchallenge.fen"
  75           )
  76         .diagram(v-html="newchallenge.diag")
  77       button(@click="newChallenge()") {{ st.tr["Send challenge"] }}
  78   input#modalPeople.modal(
  79     type="checkbox"
  80     @click="resetSocialColor()"
  81   )
  82   div#peopleWrap(
  83     role="dialog"
  84     data-checkbox="modalPeople"
  85   )
  86     .card
  87       label.modal-close(for="modalPeople")
  88       #people
  89         #players
  90           p(
  91             v-for="sid in Object.keys(people)"
  92             v-if="people[sid].name"
  93           )
  94             span {{ people[sid].name }}
  95             button.player-action(
  96               v-if="isGamer(sid) || (st.user.id > 0 && sid!=st.user.sid)"
  97               @click="challOrWatch(sid)"
  98             )
  99               | {{ getActionLabel(sid) }}
 100           p.anonymous @nonymous ({{ anonymousCount }})
 101         #chat
 102           Chat(
 103             :newChat="newChat"
 104             @mychat="processChat"
 105             :pastChats="[]"
 106           )
 107         .clearer
 108   .row
 109     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 110       .button-group
 111         button#peopleBtn(onClick="window.doClick('modalPeople')")
 112           | {{ st.tr["Who's there?"] }}
 113         button(onClick="window.doClick('modalNewgame')")
 114           | {{ st.tr["New game"] }}
 115   .row
 116     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
 117       div#div2
 118         .button-group
 119           button.tabbtn#btnClive(@click="setDisplay('c','live',$event)")
 120             | {{ st.tr["Live challenges"] }}
 121           button.tabbtn#btnCcorr(@click="setDisplay('c','corr',$event)")
 122             | {{ st.tr["Correspondance challenges"] }}
 123         ChallengeList(
 124           v-show="cdisplay=='live'"
 125           :challenges="filterChallenges('live')"
 126           @click-challenge="clickChallenge"
 127         )
 128         ChallengeList(
 129           v-show="cdisplay=='corr'"
 130           :challenges="filterChallenges('corr')"
 131           @click-challenge="clickChallenge"
 132         )
 133       div#div3
 134         .button-group
 135           button.tabbtn#btnGlive(@click="setDisplay('g','live',$event)")
 136             | {{ st.tr["Live games"] }}
 137           button.tabbtn#btnGcorr(@click="setDisplay('g','corr',$event)")
 138             | {{ st.tr["Correspondance games"] }}
 139         GameList(
 140           v-show="gdisplay=='live'"
 141           :games="filterGames('live')"
 142           :showBoth="true"
 143           @show-game="showGame"
 144         )
 145         GameList(
 146           v-show="gdisplay=='corr'"
 147           :games="filterGames('corr')"
 148           :showBoth="true"
 149           @show-game="showGame"
 150         )
 151 </template>
 152
 153 <script>
 154 import { store } from "@/store";
 155 import { checkChallenge } from "@/data/challengeCheck";
 156 import { ArrayFun } from "@/utils/array";
 157 import { ajax } from "@/utils/ajax";
 158 import params from "@/parameters";
 159 import { getRandString, shuffle } from "@/utils/alea";
 160 import { getDiagram } from "@/utils/printDiagram";
 161 import Chat from "@/components/Chat.vue";
 162 import GameList from "@/components/GameList.vue";
 163 import ChallengeList from "@/components/ChallengeList.vue";
 164 import { GameStorage } from "@/utils/gameStorage";
 165 import { processModalClick } from "@/utils/modalClick";
 166 export default {
 167   name: "my-hall",
 168   components: {
 169     Chat,
 170     GameList,
 171     ChallengeList
 172   },
 173   data: function() {
 174     return {
 175       st: store.state,
 176       cdisplay: "live", //or corr
 177       gdisplay: "live",
 178       games: [],
 179       challenges: [],
 180       people: {},
 181       infoMessage: "",
 182       newchallenge: {
 183         fen: "",
 184         vid: parseInt(localStorage.getItem("vid")) || 0,
 185         to: "", //name of challenged player (if any)
 186         cadence: localStorage.getItem("cadence") || "",
 187         randomness: parseInt(localStorage.getItem("randomness")) || 2,
 188         // VariantRules object, stored to not interfere with
 189         // diagrams of targetted challenges:
 190         V: null,
 191         vname: "",
 192         diag: "" //visualizing FEN
 193       },
 194       tchallDiag: "",
 195       curChallToAccept: {from: {}},
 196       newChat: "",
 197       conn: null,
 198       connexionString: "",
 199       // Related to (killing of) self multi-connects:
 200       newConnect: {},
 201       killed: {}
 202     };
 203   },
 204   watch: {
 205     // st.variants changes only once, at loading from [] to [...]
 206     "st.variants": function() {
 207       // Set potential challenges and games variant names:
 208       this.challenges.concat(this.games).forEach(o => {
 209         if (o.vname == "") o.vname = this.getVname(o.vid);
 210       });
 211       if (!this.newchallenge.V && this.newchallenge.vid > 0)
 212         this.loadNewchallVariant();
 213     }
 214   },
 215   computed: {
 216     anonymousCount: function() {
 217       let count = 0;
 218       Object.values(this.people).forEach(p => {
 219         // Do not cound people who did not send their identity yet:
 220         count += (!p.name && p.id === 0) ? 1 : 0;
 221       });
 222       return count;
 223     }
 224   },
 225   created: function() {
 226     if (this.st.variants.length > 0 && this.newchallenge.vid > 0)
 227       this.loadNewchallVariant();
 228     const my = this.st.user;
 229     this.$set(this.people, my.sid, { id: my.id, name: my.name, pages: ["/"] });
 230     // Ask server for current corr games (all but mines)
 231     ajax(
 232       "/games",
 233       "GET",
 234       { uid: this.st.user.id, excluded: true },
 235       response => {
 236         this.games = this.games.concat(
 237           response.games.map(g => {
 238             const type = this.classifyObject(g);
 239             const vname = this.getVname(g.vid);
 240             return Object.assign({}, g, { type: type, vname: vname });
 241           })
 242         );
 243       }
 244     );
 245     // Also ask for corr challenges (open + sent by/to me)
 246     ajax("/challenges", "GET", { uid: this.st.user.id }, response => {
 247       // Gather all senders names, and then retrieve full identity:
 248       // (TODO [perf]: some might be online...)
 249       let names = {};
 250       response.challenges.forEach(c => {
 251         if (c.uid != this.st.user.id) names[c.uid] = "";
 252         else if (!!c.target && c.target != this.st.user.id)
 253           names[c.target] = "";
 254       });
 255       const addChallenges = () => {
 256         names[this.st.user.id] = this.st.user.name; //in case of
 257         this.challenges = this.challenges.concat(
 258           response.challenges.map(c => {
 259             const from = { name: names[c.uid], id: c.uid }; //or just name
 260             const type = this.classifyObject(c);
 261             const vname = this.getVname(c.vid);
 262             return Object.assign(
 263               {},
 264               {
 265                 type: type,
 266                 vname: vname,
 267                 from: from,
 268                 to: c.target ? names[c.target] : ""
 269               },
 270               c
 271             );
 272           })
 273         );
 274       };
 275       if (Object.keys(names).length > 0) {
 276         ajax(
 277           "/users",
 278           "GET",
 279           { ids: Object.keys(names).join(",") },
 280           response2 => {
 281             response2.users.forEach(u => {
 282               names[u.id] = u.name;
 283             });
 284             addChallenges();
 285           }
 286         );
 287       } else addChallenges();
 288     });
 289     const connectAndPoll = () => {
 290       this.send("connect");
 291       this.send("pollclientsandgamers");
 292     };
 293     // Initialize connection
 294     this.connexionString =
 295       params.socketUrl +
 296       "/?sid=" +
 297       this.st.user.sid +
 298       "&tmpId=" +
 299       getRandString() +
 300       "&page=" +
 301       encodeURIComponent(this.$route.path);
 302     this.conn = new WebSocket(this.connexionString);
 303     this.conn.onopen = connectAndPoll;
 304     this.conn.onmessage = this.socketMessageListener;
 305     this.conn.onclose = this.socketCloseListener;
 306   },
 307   mounted: function() {
 308     ["peopleWrap", "infoDiv", "newgameDiv"].forEach(eltName => {
 309       let elt = document.getElementById(eltName);
 310       elt.addEventListener("click", processModalClick);
 311     });
 312     document.querySelectorAll("#predefinedCadences > button").forEach(b => {
 313       b.addEventListener("click", () => {
 314         this.newchallenge.cadence = b.innerHTML;
 315       });
 316     });
 317     const dispCorr = this.$route.query["disp"];
 318     const showCtype =
 319       dispCorr || localStorage.getItem("type-challenges") || "live";
 320     const showGtype =
 321       dispCorr || localStorage.getItem("type-games") || "live";
 322     this.setDisplay("c", showCtype);
 323     this.setDisplay("g", showGtype);
 324   },
 325   beforeDestroy: function() {
 326     this.send("disconnect");
 327   },
 328   methods: {
 329     // Helpers:
 330     cadenceFocusIfOpened: function() {
 331       if (event.target.checked)
 332         document.getElementById("cadence").focus();
 333     },
 334     send: function(code, obj) {
 335       if (this.conn) {
 336         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
 337       }
 338     },
 339     getVname: function(vid) {
 340       const variant = this.st.variants.find(v => v.id == vid);
 341       // this.st.variants might be uninitialized (variant == null)
 342       return variant ? variant.name : "";
 343     },
 344     filterChallenges: function(type) {
 345       return this.challenges.filter(c => c.type == type);
 346     },
 347     filterGames: function(type) {
 348       return this.games.filter(g => g.type == type);
 349     },
 350     classifyObject: function(o) {
 351       //challenge or game
 352       return o.cadence.indexOf("d") === -1 ? "live" : "corr";
 353     },
 354     setDisplay: function(letter, type, e) {
 355       this[letter + "display"] = type;
 356       localStorage.setItem(
 357         "type-" + (letter == "c" ? "challenges" : "games"),
 358         type
 359       );
 360       let elt = e
 361         ? e.target
 362         : document.getElementById("btn" + letter.toUpperCase() + type);
 363       elt.classList.add("active");
 364       elt.classList.remove("somethingnew"); //in case of
 365       if (elt.previousElementSibling)
 366         elt.previousElementSibling.classList.remove("active");
 367       else elt.nextElementSibling.classList.remove("active");
 368     },
 369     isGamer: function(sid) {
 370       return this.people[sid].pages.some(p => p.indexOf("/game/") >= 0);
 371     },
 372     getActionLabel: function(sid) {
 373       return this.people[sid].pages.some(p => p == "/")
 374         ? "Challenge"
 375         : "Observe";
 376     },
 377     challOrWatch: function(sid) {
 378       if (this.people[sid].pages.some(p => p == "/")) {
 379         // Available, in Hall
 380         this.newchallenge.to = this.people[sid].name;
 381         document.getElementById("modalPeople").checked = false;
 382         window.doClick("modalNewgame");
 383       } else {
 384         // In some game, maybe playing maybe not: show a random one
 385         let gids = [];
 386         this.people[sid].pages.forEach(p => {
 387           const matchGid = p.match(/[a-zA-Z0-9]+$/);
 388           if (matchGid) gids.push(matchGid[0]);
 389         });
 390         const gid = gids[Math.floor(Math.random() * gids.length)];
 391         const game = this.games.find(g => g.id == gid);
 392         if (game) this.showGame(game);
 393         else this.$router.push("/game/" + gid); //game vs. me
 394       }
 395     },
 396     showGame: function(g) {
 397       // NOTE: we are an observer, since only games I don't play are shown here
 398       // ==> Moves sent by connected remote player(s) if live game
 399       let url = "/game/" + g.id;
 400       if (g.type == "live")
 401         url += "?rid=" + g.rids[Math.floor(Math.random() * g.rids.length)];
 402       this.$router.push(url);
 403     },
 404     resetSocialColor: function() {
 405       // TODO: this is called twice, once on opening an once on closing
 406       document.getElementById("peopleBtn").classList.remove("somethingnew");
 407     },
 408     processChat: function(chat) {
 409       this.send("newchat", { data: chat });
 410     },
 411     // Messaging center:
 412     socketMessageListener: function(msg) {
 413       if (!this.conn) return;
 414       const data = JSON.parse(msg.data);
 415       switch (data.code) {
 416         case "pollclientsandgamers": {
 417           // Since people can be both in Hall and Game,
 418           // need to track "askIdentity" requests:
 419           let identityAsked = {};
 420           data.sockIds.forEach(s => {
 421             const page = s.page || "/";
 422             if (s.sid != this.st.user.sid && !identityAsked[s.sid]) {
 423               this.send("askidentity", { target: s.sid, page: page });
 424               identityAsked[s.sid] = true;
 425             }
 426             if (!this.people[s.sid])
 427               // Do not set name or id: identity unknown yet
 428               this.$set(this.people, s.sid, { pages: [page] });
 429             else if (this.people[s.sid].pages.indexOf(page) < 0)
 430               this.people[s.sid].pages.push(page);
 431             if (!s.page)
 432               // Peer is in Hall
 433               this.send("askchallenge", { target: s.sid });
 434             // Peer is in Game
 435             else this.send("askgame", { target: s.sid, page: page });
 436           });
 437           break;
 438         }
 439         case "connect":
 440         case "gconnect": {
 441           const page = data.page || "/";
 442           // NOTE: player could have been polled earlier, but might have logged in then
 443           // So it's a good idea to ask identity if he was anonymous.
 444           // But only ask game / challenge if currently disconnected.
 445           if (!this.people[data.from]) {
 446             this.$set(this.people, data.from, { pages: [page] });
 447             if (data.code == "connect")
 448               this.send("askchallenge", { target: data.from });
 449             else this.send("askgame", { target: data.from, page: page });
 450           } else {
 451             // Append page if not already in list
 452             if (this.people[data.from].pages.indexOf(page) < 0)
 453               this.people[data.from].pages.push(page);
 454           }
 455           if (!this.people[data.from].name && this.people[data.from].id !== 0) {
 456             // Identity not known yet
 457             this.newConnect[data.from] = true; //for self multi-connects tests
 458             this.send("askidentity", { target: data.from, page: page });
 459           }
 460           break;
 461         }
 462         case "disconnect":
 463         case "gdisconnect": {
 464           // If the user reloads the page twice very quickly (experienced with Firefox),
 465           // the first reload won't have time to connect but will trigger a "close" event anyway.
 466           // ==> Next check is required.
 467           if (!this.people[data.from]) return;
 468           // Disconnect means no more tmpIds:
 469           if (data.code == "disconnect") {
 470             // Remove the live challenge sent by this player:
 471             ArrayFun.remove(this.challenges, c => c.from.sid == data.from);
 472           } else {
 473             // Remove the matching live game if now unreachable
 474             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
 475             const gidx = this.games.findIndex(g => g.id == gid);
 476             if (gidx >= 0) {
 477               const game = this.games[gidx];
 478               if (
 479                 game.type == "live" &&
 480                 game.rids.length == 1 &&
 481                 game.rids[0] == data.from
 482               ) {
 483                 this.games.splice(gidx, 1);
 484               }
 485             }
 486           }
 487           const page = data.page || "/";
 488           ArrayFun.remove(this.people[data.from].pages, p => p == page);
 489           if (this.people[data.from].pages.length == 0)
 490             this.$delete(this.people, data.from);
 491           break;
 492         }
 493         case "killed":
 494           // I logged in elsewhere:
 495           this.conn = null;
 496           alert(this.st.tr["New connexion detected: tab now offline"]);
 497           break;
 498         case "askidentity": {
 499           // Request for identification (TODO: anonymous shouldn't need to reply)
 500           const me = {
 501             // Decompose to avoid revealing email
 502             name: this.st.user.name,
 503             sid: this.st.user.sid,
 504             id: this.st.user.id
 505           };
 506           this.send("identity", { data: me, target: data.from });
 507           break;
 508         }
 509         case "identity": {
 510           const user = data.data;
 511           this.$set(this.people, user.sid, {
 512             id: user.id,
 513             name: user.name,
 514             pages: this.people[user.sid].pages
 515           });
 516           if (user.name) {
 517             // If I multi-connect, kill current connexion if no mark (I'm older)
 518             if (
 519               this.newConnect[user.sid] &&
 520               user.id > 0 &&
 521               user.id == this.st.user.id &&
 522               user.sid != this.st.user.sid
 523             ) {
 524               if (!this.killed[this.st.user.sid]) {
 525                 this.send("killme", { sid: this.st.user.sid });
 526                 this.killed[this.st.user.sid] = true;
 527               }
 528             }
 529           }
 530           delete this.newConnect[user.sid];
 531           break;
 532         }
 533         case "askchallenge": {
 534           // Send my current live challenge (if any)
 535           const cIdx = this.challenges.findIndex(
 536             c => c.from.sid == this.st.user.sid && c.type == "live"
 537           );
 538           if (cIdx >= 0) {
 539             const c = this.challenges[cIdx];
 540             // NOTE: in principle, should only send targeted challenge to the target.
 541             // But we may not know yet the identity of the target (just name),
 542             // so cannot decide if data.from is the target or not.
 543             const myChallenge = {
 544               id: c.id,
 545               from: this.st.user.sid,
 546               to: c.to,
 547               randomness: c.randomness,
 548               fen: c.fen,
 549               vid: c.vid,
 550               cadence: c.cadence,
 551               added: c.added
 552             };
 553             this.send("challenge", { data: myChallenge, target: data.from });
 554           }
 555           break;
 556         }
 557         case "challenge": //after "askchallenge"
 558         case "newchallenge": {
 559           // NOTE about next condition: see "askchallenge" case.
 560           const chall = data.data;
 561           if (
 562             !chall.to ||
 563             (this.people[chall.from].id > 0 &&
 564               (chall.from == this.st.user.sid || chall.to == this.st.user.name))
 565           ) {
 566             let newChall = Object.assign({}, chall);
 567             newChall.type = this.classifyObject(chall);
 568             newChall.randomness = chall.randomness;
 569             newChall.added = Date.now();
 570             let fromValues = Object.assign({}, this.people[chall.from]);
 571             delete fromValues["pages"]; //irrelevant in this context
 572             newChall.from = Object.assign({ sid: chall.from }, fromValues);
 573             newChall.vname = this.getVname(newChall.vid);
 574             this.challenges.push(newChall);
 575             if (
 576               (newChall.type == "live" && this.cdisplay == "corr") ||
 577               (newChall.type == "corr" && this.cdisplay == "live")
 578             ) {
 579               document
 580                 .getElementById("btnC" + newChall.type)
 581                 .classList.add("somethingnew");
 582             }
 583           }
 584           break;
 585         }
 586         case "refusechallenge": {
 587           const cid = data.data;
 588           ArrayFun.remove(this.challenges, c => c.id == cid);
 589           alert(this.st.tr["Challenge declined"]);
 590           break;
 591         }
 592         case "deletechallenge": {
 593           // NOTE: the challenge may be already removed
 594           const cid = data.data;
 595           ArrayFun.remove(this.challenges, c => c.id == cid);
 596           break;
 597         }
 598         case "game": //individual request
 599         case "newgame": {
 600           // NOTE: it may be live or correspondance
 601           const game = data.data;
 602           // Ignore games where I play (corr games)
 603           if (game.players.every(p =>
 604             p.sid != this.st.user.sid || p.id != this.st.user.id))
 605           {
 606             let locGame = this.games.find(g => g.id == game.id);
 607             if (!locGame) {
 608               let newGame = game;
 609               newGame.type = this.classifyObject(game);
 610               newGame.vname = this.getVname(game.vid);
 611               if (!game.score)
 612                 //if new game from Hall
 613                 newGame.score = "*";
 614               newGame.rids = [game.rid];
 615               delete newGame["rid"];
 616               this.games.push(newGame);
 617               if (
 618                 (newGame.type == "live" && this.gdisplay == "corr") ||
 619                 (newGame.type == "corr" && this.gdisplay == "live")
 620               ) {
 621                 document
 622                   .getElementById("btnG" + newGame.type)
 623                   .classList.add("somethingnew");
 624               }
 625             } else {
 626               // Append rid (if not already in list)
 627               if (!locGame.rids.includes(game.rid)) locGame.rids.push(game.rid);
 628             }
 629           }
 630           break;
 631         }
 632         case "result": {
 633           let g = this.games.find(g => g.id == data.gid);
 634           if (g) g.score = data.score;
 635           break;
 636         }
 637         case "startgame": {
 638           // New game just started: data contain all information
 639           const gameInfo = data.data;
 640           if (this.classifyObject(gameInfo) == "live")
 641             this.startNewGame(gameInfo);
 642           else {
 643             this.infoMessage =
 644               this.st.tr["New correspondance game:"] +
 645               " <a href='#/game/" +
 646               gameInfo.id +
 647               "'>" +
 648               "#/game/" +
 649               gameInfo.id +
 650               "</a>";
 651             let modalBox = document.getElementById("modalInfo");
 652             modalBox.checked = true;
 653           }
 654           break;
 655         }
 656         case "newchat":
 657           this.newChat = data.data;
 658           if (!document.getElementById("modalPeople").checked)
 659             document.getElementById("peopleBtn").classList.add("somethingnew");
 660           break;
 661       }
 662     },
 663     socketCloseListener: function() {
 664       if (!this.conn) return;
 665       this.conn = new WebSocket(this.connexionString);
 666       this.conn.addEventListener("message", this.socketMessageListener);
 667       this.conn.addEventListener("close", this.socketCloseListener);
 668     },
 669     // Challenge lifecycle:
 670     loadNewchallVariant: async function(cb) {
 671       const vname = this.getVname(this.newchallenge.vid);
 672       const vModule = await import("@/variants/" + vname + ".js");
 673       this.newchallenge.V = vModule.VariantRules;
 674       this.newchallenge.vname = vname;
 675       if (cb)
 676         cb();
 677     },
 678     trySetNewchallDiag: function() {
 679       if (!this.newchallenge.fen) {
 680         this.newchallenge.diag = "";
 681         return;
 682       }
 683       // If vid > 0 then the variant is loaded (function above):
 684       window.V = this.newchallenge.V;
 685       if (
 686         this.newchallenge.vid > 0 &&
 687         this.newchallenge.fen &&
 688         V.IsGoodFen(this.newchallenge.fen)
 689       ) {
 690         const parsedFen = V.ParseFen(this.newchallenge.fen);
 691         this.newchallenge.diag = getDiagram({
 692           position: parsedFen.position,
 693           orientation: V.GetOppCol(parsedFen.turn)
 694         });
 695       }
 696     },
 697     newChallenge: async function() {
 698       if (this.newchallenge.cadence.match(/^[0-9]+$/))
 699         this.newchallenge.cadence += "+0"; //assume minutes, no increment
 700       const ctype = this.classifyObject(this.newchallenge);
 701       // TODO: cadence still unchecked so ctype could be wrong...
 702       let error = "";
 703       if (!this.newchallenge.vid)
 704         error = this.st.tr["Please select a variant"];
 705       else if (ctype == "corr" && this.st.user.id <= 0)
 706         error = this.st.tr["Please log in to play correspondance games"];
 707       else if (this.newchallenge.to) {
 708         if (this.newchallenge.to == this.st.user.name)
 709           error = this.st.tr["Self-challenge is forbidden"];
 710         else if (
 711           ctype == "live" &&
 712           Object.values(this.people).every(p => p.name != this.newchallenge.to)
 713         )
 714           error = this.newchallenge.to + " " + this.st.tr["is not online"];
 715       }
 716       if (error) {
 717         alert(error);
 718         return;
 719       }
 720       window.V = this.newchallenge.V;
 721       error = checkChallenge(this.newchallenge);
 722       if (error) {
 723         alert(error);
 724         return;
 725       }
 726       // NOTE: "from" information is not required here
 727       let chall = Object.assign({}, this.newchallenge);
 728       delete chall["V"];
 729       delete chall["diag"];
 730       const finishAddChallenge = cid => {
 731         chall.id = cid || "c" + getRandString();
 732         // Remove old challenge if any (only one at a time of a given type):
 733         const cIdx = this.challenges.findIndex(
 734           c =>
 735             (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
 736             c.type == ctype
 737         );
 738         if (cIdx >= 0) {
 739           // Delete current challenge (will be replaced now)
 740           this.send("deletechallenge", { data: this.challenges[cIdx].id });
 741           if (ctype == "corr") {
 742             ajax("/challenges", "DELETE", { id: this.challenges[cIdx].id });
 743           }
 744           this.challenges.splice(cIdx, 1);
 745         }
 746         this.send("newchallenge", {
 747           data: Object.assign({ from: this.st.user.sid }, chall)
 748         });
 749         // Add new challenge:
 750         chall.from = {
 751           // Decompose to avoid revealing email
 752           sid: this.st.user.sid,
 753           id: this.st.user.id,
 754           name: this.st.user.name
 755         };
 756         chall.added = Date.now();
 757         // NOTE: vname and type are redundant (can be deduced from cadence + vid)
 758         chall.type = ctype;
 759         chall.vname = this.newchallenge.vname;
 760         this.challenges.push(chall);
 761         // Remember cadence  + vid for quicker further challenges:
 762         localStorage.setItem("cadence", chall.cadence);
 763         localStorage.setItem("vid", chall.vid);
 764         localStorage.setItem("randomness", chall.randomness);
 765         document.getElementById("modalNewgame").checked = false;
 766         // Show the challenge if not on current display
 767         if (
 768           (ctype == "live" && this.cdisplay == "corr") ||
 769           (ctype == "corr" && this.cdisplay == "live")
 770         ) {
 771           this.setDisplay('c', ctype);
 772         }
 773       };
 774       if (ctype == "live") {
 775         // Live challenges have a random ID
 776         finishAddChallenge(null);
 777       } else {
 778         // Correspondance game: send challenge to server
 779         ajax("/challenges", "POST", { chall: chall }, response => {
 780           finishAddChallenge(response.cid);
 781         });
 782       }
 783     },
 784     // Callback function after a diagram was showed to accept
 785     // or refuse targetted challenge:
 786     decisionChallenge: function(accepted) {
 787       this.curChallToAccept.accepted = accepted;
 788       this.finishProcessingChallenge(this.curChallToAccept);
 789       document.getElementById("modalAccept").checked = false;
 790     },
 791     finishProcessingChallenge: function(c) {
 792       if (c.accepted) {
 793         c.seat = {
 794           // Again, avoid c.seat = st.user to not reveal email
 795           sid: this.st.user.sid,
 796           id: this.st.user.id,
 797           name: this.st.user.name
 798         };
 799         this.launchGame(c);
 800       } else {
 801         this.send("refusechallenge", { data: c.id, target: c.from.sid });
 802       }
 803       this.send("deletechallenge", { data: c.id });
 804     },
 805     clickChallenge: async function(c) {
 806       const myChallenge =
 807         c.from.sid == this.st.user.sid || //live
 808         (this.st.user.id > 0 && c.from.id == this.st.user.id); //corr
 809       if (!myChallenge) {
 810         if (c.type == "corr" && this.st.user.id <= 0) {
 811           alert(this.st.tr["Please log in to accept corr challenges"]);
 812           return;
 813         }
 814         c.accepted = true;
 815         const vModule = await import("@/variants/" + c.vname + ".js");
 816         window.V = vModule.VariantRules;
 817         if (c.to) {
 818           // c.to == this.st.user.name (connected)
 819           if (c.fen) {
 820             const parsedFen = V.ParseFen(c.fen);
 821             c.mycolor = V.GetOppCol(parsedFen.turn);
 822             this.tchallDiag = getDiagram({
 823               position: parsedFen.position,
 824               orientation: c.mycolor
 825             });
 826             this.curChallToAccept = c;
 827             document.getElementById("modalAccept").checked = true;
 828           }
 829           else {
 830             if (!confirm(this.st.tr["Accept challenge?"]))
 831               c.accepted = false;
 832             this.finishProcessingChallenge(c);
 833           }
 834         }
 835         else
 836           this.finishProcessingChallenge(c);
 837       }
 838       else {
 839         // My challenge
 840         if (c.type == "corr") {
 841           ajax("/challenges", "DELETE", { id: c.id });
 842         }
 843         this.send("deletechallenge", { data: c.id });
 844       }
 845       // In all cases, the challenge is consumed:
 846       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
 847     },
 848     // NOTE: when launching game, the challenge is already being deleted
 849     launchGame: function(c) {
 850       // These game informations will be shared
 851       let gameInfo = {
 852         id: getRandString(),
 853         fen: c.fen || V.GenRandInitFen(c.randomness),
 854         // White player index 0, black player index 1:
 855         players: c.mycolor
 856           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
 857           : shuffle([c.from, c.seat]),
 858         vid: c.vid,
 859         cadence: c.cadence
 860       };
 861       let oppsid = c.from.sid; //may not be defined if corr + offline opp
 862       if (!oppsid) {
 863         oppsid = Object.keys(this.people).find(
 864           sid => this.people[sid].id == c.from.id
 865         );
 866       }
 867       const notifyNewgame = () => {
 868         if (oppsid)
 869           //opponent is online
 870           this.send("startgame", { data: gameInfo, target: oppsid });
 871         // Send game info (only if live) to everyone except me in this tab
 872         this.send("newgame", { data: gameInfo });
 873       };
 874       if (c.type == "live") {
 875         notifyNewgame();
 876         this.startNewGame(gameInfo);
 877       } //corr: game only on server
 878       else {
 879         ajax(
 880           "/games",
 881           "POST",
 882           { gameInfo: gameInfo, cid: c.id }, //cid useful to delete challenge
 883           response => {
 884             gameInfo.id = response.gameId;
 885             notifyNewgame();
 886             this.$router.push("/game/" + response.gameId);
 887           }
 888         );
 889       }
 890     },
 891     // NOTE: for live games only (corr games start on the server)
 892     startNewGame: function(gameInfo) {
 893       const game = Object.assign({}, gameInfo, {
 894         // (other) Game infos: constant
 895         fenStart: gameInfo.fen,
 896         vname: this.getVname(gameInfo.vid),
 897         created: Date.now(),
 898         // Game state (including FEN): will be updated
 899         moves: [],
 900         clocks: [-1, -1], //-1 = unstarted
 901         initime: [0, 0], //initialized later
 902         score: "*"
 903       });
 904       GameStorage.add(game, (err) => {
 905         // If an error occurred, game is not added: abort
 906         if (!err) {
 907           if (this.st.settings.sound)
 908             new Audio("/sounds/newgame.flac").play().catch(() => {});
 909           this.$router.push("/game/" + gameInfo.id);
 910         }
 911       });
 912     }
 913   }
 914 };
 915 </script>
 916
 917 <style lang="sass" scoped>
 918 .active
 919   color: #42a983
 920
 921 #infoDiv > .card
 922   padding: 15px 0
 923   max-width: 430px
 924
 925 #newgameDiv > .card, #acceptDiv > .card
 926   max-width: 767px
 927   max-height: 100%
 928
 929 div#peopleWrap > .card
 930   max-height: 100%
 931
 932 @media screen and (min-width: 1281px)
 933   div#peopleWrap > .card
 934     max-width: 66.67%
 935
 936 @media screen and (max-width: 1280px)
 937   div#peopleWrap > .card
 938     max-width: 83.33%
 939
 940 @media screen and (max-width: 767px)
 941   div#peopleWrap > .card
 942     max-width: 100%
 943
 944 #players
 945   width: 50%
 946   position: relative
 947   float: left
 948
 949 #chat
 950   width: 50%
 951   float: left
 952   position: relative
 953
 954 @media screen and (max-width: 767px)
 955   #players, #chats
 956     width: 100%
 957
 958 #chat > .card
 959   max-width: 100%
 960   margin: 0;
 961   border: none;
 962
 963 #players > p
 964   margin-left: 5px
 965
 966 .anonymous
 967   font-style: italic
 968
 969 button.player-action
 970   margin-left: 32px
 971
 972 .somethingnew
 973   background-color: #c5fefe !important
 974
 975 .tabbtn
 976   background-color: #f9faee
 977
 978 button.acceptBtn
 979   background-color: lightgreen
 980 button.refuseBtn
 981   background-color: red
 982
 983 #buttonsTchall
 984   margin-top: 10px
 985
 986 .variantName
 987   font-weight: bold
 988
 989 .diagram
 990   margin: 0 auto
 991   max-width: 400px
 992
 993 #inputFen
 994   width: 100%
 995
 996 #div2, #div3
 997   margin-top: 15px
 998 @media screen and (max-width: 767px)
 999   #div2, #div3
1000     margin-top: 0
1001 </style>