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