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