client/src/views/Problems.vue

   1 <template lang="pug">
   2 main
   3   input#modalNewprob.modal(
   4     type="checkbox"
   5     @change="infoMsg=''"
   6   )
   7   div#newprobDiv(
   8     role="dialog"
   9     data-checkbox="modalNewprob"
  10   )
  11     .card
  12       label#closeNewprob.modal-close(for="modalNewprob")
  13       fieldset
  14         label(for="selectVariant") {{ st.tr["Variant"] }}
  15         select#selectVariant(
  16           v-model="curproblem.vid"
  17           @change="changeVariant(curproblem)"
  18         )
  19           option(
  20             v-for="v in [emptyVar].concat(st.variants)"
  21             :value="v.id"
  22             :selected="curproblem.vid==v.id"
  23           )
  24             | {{ v.name }}
  25       fieldset
  26         input#inputFen(
  27           type="text"
  28           placeholder="FEN"
  29           v-model="curproblem.fen"
  30           @input="trySetDiagram(curproblem)"
  31         )
  32         #diagram(v-html="curproblem.diag")
  33       fieldset
  34         textarea(
  35           :placeholder="st.tr['Instructions']"
  36           v-model="curproblem.instruction"
  37         )
  38         p(v-html="parseHtml(curproblem.instruction)")
  39       fieldset
  40         textarea(
  41           :placeholder="st.tr['Solution']"
  42           v-model="curproblem.solution"
  43         )
  44         p(v-html="parseHtml(curproblem.solution)")
  45       button(@click="sendProblem()") {{ st.tr["Send"] }}
  46       #dialog.text-center {{ st.tr[infoMsg] }}
  47   .row(v-if="showOne")
  48     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
  49       #topPage
  50         .button-group(v-if="st.user.id == curproblem.uid")
  51           button(@click="editProblem(curproblem)") {{ st.tr["Edit"] }}
  52           button(@click="deleteProblem(curproblem)") {{ st.tr["Delete"] }}
  53         span.vname {{ curproblem.vname }}
  54         span.uname ({{ curproblem.uname }})
  55         button.marginleft(@click="backToList()") {{ st.tr["Back to list"] }}
  56         button.nomargin(@click="gotoPrevNext($event,curproblem,1)")
  57           | {{ st.tr["Previous"] }}
  58         button.nomargin(@click="gotoPrevNext($event,curproblem,-1)")
  59           | {{ st.tr["Next"] }}
  60       p.oneInstructions.clickable(
  61         v-html="parseHtml(curproblem.instruction)"
  62         @click="curproblem.showSolution=!curproblem.showSolution"
  63       )
  64         | {{ st.tr["Show solution"] }}
  65       p(
  66         v-show="curproblem.showSolution"
  67         v-html="parseHtml(curproblem.solution)"
  68       )
  69   .row(v-else)
  70     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
  71       #controls
  72         button#newProblem(@click="prepareNewProblem()")
  73           | {{ st.tr["New problem"] }}
  74         label(for="checkboxMine") {{ st.tr["My problems"] }}
  75         input#checkboxMine(
  76           type="checkbox"
  77           v-model="onlyMines"
  78         )
  79         label(for="selectVariant") {{ st.tr["Variant"] }}
  80         select#selectVariant(v-model="selectedVar")
  81           option(
  82             v-for="v in [emptyVar].concat(st.variants)"
  83             :value="v.id"
  84           )
  85             | {{ v.name }}
  86       table#tProblems
  87         tr
  88           th {{ st.tr["Variant"] }}
  89           th {{ st.tr["Instructions"] }}
  90           th {{ st.tr["Number"] }}
  91         tr(
  92           v-for="p in problems"
  93           v-show="displayProblem(p)"
  94           @click="setHrefPid(p)"
  95         )
  96           td {{ p.vname }}
  97           td {{ firstChars(p.instruction) }}
  98           td {{ p.id }}
  99   BaseGame(
 100     v-if="showOne"
 101     :game="game"
 102     :vr="vr"
 103   )
 104 </template>
 105
 106 <script>
 107 import { store } from "@/store";
 108 import { ajax } from "@/utils/ajax";
 109 import { checkProblem } from "@/data/problemCheck";
 110 import { getDiagram } from "@/utils/printDiagram";
 111 import { processModalClick } from "@/utils/modalClick";
 112 import { ArrayFun } from "@/utils/array";
 113 import BaseGame from "@/components/BaseGame.vue";
 114 export default {
 115   name: "my-problems",
 116   components: {
 117     BaseGame
 118   },
 119   data: function() {
 120     return {
 121       st: store.state,
 122       emptyVar: {
 123         vid: 0,
 124         vname: ""
 125       },
 126       // Problem currently showed, or edited:
 127       curproblem: {
 128         id: 0, //used in case of edit
 129         vid: 0,
 130         fen: "",
 131         diag: "",
 132         instruction: "",
 133         solution: "",
 134         showSolution: false
 135       },
 136       loadedVar: 0, //corresponding to loaded V
 137       selectedVar: 0, //to filter problems based on variant
 138       problems: [],
 139       onlyMines: false,
 140       showOne: false,
 141       infoMsg: "",
 142       vr: null, //"variant rules" object initialized from FEN
 143       game: {
 144         players: [{ name: "Problem" }, { name: "Problem" }],
 145         mode: "analyze"
 146       }
 147     };
 148   },
 149   created: function() {
 150     ajax("/problems", "GET", res => {
 151       // Show newest problem first:
 152       this.problems = res.problems.sort((p1, p2) => p2.added - p1.added);
 153       if (this.st.variants.length > 0)
 154         this.problems.forEach(p => this.setVname(p));
 155       // Retrieve all problems' authors' names
 156       let names = {};
 157       this.problems.forEach(p => {
 158         if (p.uid != this.st.user.id) names[p.uid] = "";
 159         else p.uname = this.st.user.name;
 160       });
 161       const showOneIfPid = () => {
 162         const pid = this.$route.query["id"];
 163         if (pid) this.showProblem(this.problems.find(p => p.id == pid));
 164       };
 165       if (Object.keys(names).length > 0) {
 166         ajax("/users", "GET", { ids: Object.keys(names).join(",") }, res2 => {
 167           res2.users.forEach(u => {
 168             names[u.id] = u.name;
 169           });
 170           this.problems.forEach(p => {
 171             if (!p.uname)
 172               p.uname = names[p.uid];
 173           });
 174           showOneIfPid();
 175         });
 176       } else showOneIfPid();
 177     });
 178   },
 179   mounted: function() {
 180     document
 181       .getElementById("newprobDiv")
 182       .addEventListener("click", processModalClick);
 183   },
 184   watch: {
 185     // st.variants changes only once, at loading from [] to [...]
 186     "st.variants": function() {
 187       // Set problems vname (either all are set or none)
 188       if (this.problems.length > 0 && this.problems[0].vname == "")
 189         this.problems.forEach(p => this.setVname(p));
 190     },
 191     $route: function(to) {
 192       const pid = to.query["id"];
 193       if (pid) this.showProblem(this.problems.find(p => p.id == pid));
 194       else this.showOne = false;
 195     }
 196   },
 197   methods: {
 198     setVname: function(prob) {
 199       prob.vname = this.st.variants.find(v => v.id == prob.vid).name;
 200     },
 201     firstChars: function(text) {
 202       let preparedText = text
 203         // Replace line jumps and <br> by spaces
 204         .replace(/\n/g, " ")
 205         .replace(/<br\/?>/g, " ")
 206         .replace(/<[^>]+>/g, "") //remove remaining HTML tags
 207         .replace(/[ ]+/g, " ") //remove series of spaces by only one
 208         .trim();
 209       const maxLength = 32; //arbitrary...
 210       if (preparedText.length > maxLength)
 211         return preparedText.substr(0, 32) + "...";
 212       return preparedText;
 213     },
 214     copyProblem: function(p1, p2) {
 215       for (let key in p1) p2[key] = p1[key];
 216     },
 217     setHrefPid: function(p) {
 218       // Change href => $route changes, watcher notices, call showProblem
 219       const curHref = document.location.href;
 220       document.location.href = curHref.split("?")[0] + "?id=" + p.id;
 221     },
 222     backToList: function() {
 223       // Change href => $route change, watcher notices, reset showOne to false
 224       document.location.href = document.location.href.split("?")[0];
 225     },
 226     resetCurProb: function() {
 227       this.curproblem.id = 0;
 228       this.curproblem.uid = 0;
 229       this.curproblem.vid = "";
 230       this.curproblem.vname = "";
 231       this.curproblem.fen = "";
 232       this.curproblem.diag = "";
 233       this.curproblem.instruction = "";
 234       this.curproblem.solution = "";
 235       this.curproblem.showSolution = false;
 236     },
 237     parseHtml: function(txt) {
 238       return !txt.match(/<[/a-zA-Z]+>/)
 239         ? txt.replace(/\n/g, "<br/>") //no HTML tag
 240         : txt;
 241     },
 242     changeVariant: function(prob) {
 243       this.setVname(prob);
 244       this.loadVariant(prob.vid, () => {
 245         // Set FEN if possible (might not be correct yet)
 246         if (V.IsGoodFen(prob.fen)) this.setDiagram(prob);
 247       });
 248     },
 249     loadVariant: async function(vid, cb) {
 250       // Condition: vid is a valid variant ID
 251       this.loadedVar = 0;
 252       const variant = this.st.variants.find(v => v.id == vid);
 253       const vModule = await import("@/variants/" + variant.name + ".js");
 254       window.V = vModule.VariantRules;
 255       this.loadedVar = vid;
 256       cb();
 257     },
 258     trySetDiagram: function(prob) {
 259       // Problem edit: FEN could be wrong or incomplete,
 260       // variant could not be ready, or not defined
 261       if (prob.vid > 0 && this.loadedVar == prob.vid && V.IsGoodFen(prob.fen))
 262         this.setDiagram(prob);
 263     },
 264     setDiagram: function(prob) {
 265       // Condition: prob.fen is correct and global V is ready
 266       const parsedFen = V.ParseFen(prob.fen);
 267       const args = {
 268         position: parsedFen.position,
 269         orientation: parsedFen.turn
 270       };
 271       prob.diag = getDiagram(args);
 272     },
 273     displayProblem: function(p) {
 274       return (
 275         (!this.selectedVar || p.vid == this.selectedVar) &&
 276         ((this.onlyMines && p.uid == this.st.user.id) ||
 277           (!this.onlyMines && p.uid != this.st.user.id))
 278       );
 279     },
 280     showProblem: function(p) {
 281       this.loadVariant(p.vid, () => {
 282         // The FEN is already checked at this stage:
 283         this.vr = new V(p.fen);
 284         this.game.vname = p.vname;
 285         this.game.mycolor = this.vr.turn; //diagram orientation
 286         this.game.fen = p.fen;
 287         this.$set(this.game, "fenStart", p.fen);
 288         this.copyProblem(p, this.curproblem);
 289         this.showOne = true;
 290       });
 291     },
 292     gotoPrevNext: function(e, prob, dir) {
 293       const startIdx = this.problems.findIndex(p => p.id == prob.id);
 294       let nextIdx = startIdx + dir;
 295       while (
 296         nextIdx >= 0 &&
 297         nextIdx < this.problems.length &&
 298         ((this.onlyMines && this.problems[nextIdx].uid != this.st.user.id) ||
 299           (!this.onlyMines && this.problems[nextIdx].uid == this.st.user.id))
 300       )
 301         nextIdx += dir;
 302       if (nextIdx >= 0 && nextIdx < this.problems.length)
 303         this.setHrefPid(this.problems[nextIdx]);
 304       else
 305         alert(this.st.tr["No more problems"]);
 306     },
 307     prepareNewProblem: function() {
 308       this.resetCurProb();
 309       window.doClick("modalNewprob");
 310     },
 311     sendProblem: function() {
 312       const error = checkProblem(this.curproblem);
 313       if (error) {
 314         alert(this.st.tr[error]);
 315         return;
 316       }
 317       const edit = this.curproblem.id > 0;
 318       this.infoMsg = "Processing... Please wait";
 319       ajax(
 320         "/problems",
 321         edit ? "PUT" : "POST",
 322         { prob: this.curproblem },
 323         ret => {
 324           if (edit) {
 325             let editedP = this.problems.find(p => p.id == this.curproblem.id);
 326             this.copyProblem(this.curproblem, editedP);
 327             this.showProblem(editedP);
 328           }
 329           else {
 330             let newProblem = Object.assign({}, this.curproblem);
 331             newProblem.id = ret.id;
 332             newProblem.uid = this.st.user.id;
 333             newProblem.uname = this.st.user.name;
 334             this.problems = [newProblem].concat(this.problems);
 335           }
 336           document.getElementById("modalNewprob").checked = false;
 337           this.infoMsg = "";
 338         }
 339       );
 340     },
 341     editProblem: function(prob) {
 342       // prob.diag might correspond to some other problem or be empty:
 343       this.setDiagram(prob); //V is loaded at this stage
 344       this.copyProblem(prob, this.curproblem);
 345       window.doClick("modalNewprob");
 346     },
 347     deleteProblem: function(prob) {
 348       if (confirm(this.st.tr["Are you sure?"])) {
 349         ajax("/problems", "DELETE", { id: prob.id }, () => {
 350           ArrayFun.remove(this.problems, p => p.id == prob.id);
 351           this.backToList();
 352         });
 353       }
 354     }
 355   }
 356 };
 357 </script>
 358
 359 <style lang="sass" scoped>
 360 [type="checkbox"].modal+div .card
 361   max-width: 767px
 362   max-height: 100%
 363
 364 #inputFen
 365   width: 100%
 366
 367 textarea
 368   width: 100%
 369
 370 #diagram
 371   margin: 0 auto
 372   max-width: 400px
 373
 374 table#tProblems
 375   max-height: 100%
 376
 377 #controls
 378   margin: 0
 379   width: 100%
 380   text-align: center
 381   & > *
 382     margin: 0
 383
 384 p.oneInstructions
 385   margin: 0
 386   padding: 2px 5px
 387   background-color: lightgreen
 388
 389 #topPage
 390   span.vname
 391     font-weight: bold
 392     padding-left: var(--universal-margin)
 393   span.uname
 394     padding-left: var(--universal-margin)
 395   margin: 0 auto
 396   & > .nomargin
 397     margin: 0
 398   & > .marginleft
 399     margin: 0 0 0 15px
 400
 401 @media screen and (max-width: 767px)
 402   #topPage
 403     text-align: center
 404 </style>