client/src/views/Problems.vue

   1 <template lang="pug">
   2 main
   3   input#modalNewprob.modal(
   4     type="checkbox"
   5     @change="fenFocusIfOpened($event)"
   6   )
   7   div#newprobDiv(
   8     role="dialog"
   9     data-checkbox="modalNewprob"
  10   )
  11     .card
  12       label#closeNewprob.modal-close(for="modalNewprob")
  13       fieldset
  14         label(for="selectVariant") {{ st.tr["Variant"] }}
  15         select#selectVariant(
  16           v-model="curproblem.vid"
  17           @change="changeVariant(curproblem)"
  18         )
  19           option(
  20             v-for="v in [emptyVar].concat(st.variants)"
  21             :value="v.id"
  22             :selected="curproblem.vid==v.id"
  23           )
  24             | {{ v.name }}
  25       fieldset
  26         input#inputFen(
  27           type="text"
  28           placeholder="FEN"
  29           v-model="curproblem.fen"
  30           @input="trySetDiagram(curproblem)"
  31         )
  32         #diagram(v-html="curproblem.diag")
  33       fieldset
  34         textarea(
  35           :placeholder="st.tr['Instructions']"
  36           v-model="curproblem.instruction"
  37         )
  38         p(v-html="parseHtml(curproblem.instruction)")
  39       fieldset
  40         textarea(
  41           :placeholder="st.tr['Solution']"
  42           v-model="curproblem.solution"
  43         )
  44         p(v-html="parseHtml(curproblem.solution)")
  45       button(@click="sendProblem()") {{ st.tr["Send"] }}
  46       #dialog.text-center {{ st.tr[infoMsg] }}
  47   .row(v-if="showOne")
  48     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
  49       #topPage
  50         .button-group(v-if="st.user.id == curproblem.uid")
  51           button(@click="editProblem(curproblem)") {{ st.tr["Edit"] }}
  52           button(@click="deleteProblem(curproblem)") {{ st.tr["Delete"] }}
  53         span.vname {{ curproblem.vname }}
  54         span.uname ({{ curproblem.uname }})
  55         button.marginleft(@click="backToList()") {{ st.tr["Back to list"] }}
  56         button.nomargin(@click="gotoPrevNext($event,curproblem,1)")
  57           | {{ st.tr["Previous"] }}
  58         button.nomargin(@click="gotoPrevNext($event,curproblem,-1)")
  59           | {{ st.tr["Next_p"] }}
  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     ref="basegame"
 101     v-if="showOne"
 102     :game="game"
 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       game: {
 143         players: [{ name: "Problem" }, { name: "Problem" }],
 144         mode: "analyze"
 145       }
 146     };
 147   },
 148   created: function() {
 149     ajax(
 150       "/problems",
 151       "GET",
 152       {
 153         success: (res) => {
 154           // Show newest problem first:
 155           this.problems = res.problems.sort((p1, p2) => p2.added - p1.added);
 156           if (this.st.variants.length > 0)
 157             this.problems.forEach(p => this.setVname(p));
 158           // Retrieve all problems' authors' names
 159           let names = {};
 160           this.problems.forEach(p => {
 161             if (p.uid != this.st.user.id) names[p.uid] = "";
 162             else p.uname = this.st.user.name;
 163           });
 164           const showOneIfPid = () => {
 165             const pid = this.$route.query["id"];
 166             if (!!pid) this.showProblem(this.problems.find(p => p.id == pid));
 167           };
 168           if (Object.keys(names).length > 0) {
 169             ajax(
 170               "/users",
 171               "GET",
 172               {
 173                 data: { ids: Object.keys(names).join(",") },
 174                 success: (res2) => {
 175                   res2.users.forEach(u => {
 176                     names[u.id] = u.name;
 177                   });
 178                   this.problems.forEach(p => {
 179                     if (!p.uname)
 180                       p.uname = names[p.uid];
 181                   });
 182                   showOneIfPid();
 183                 }
 184               }
 185             );
 186           } else showOneIfPid();
 187         }
 188       }
 189     );
 190   },
 191   mounted: function() {
 192     document.getElementById("newprobDiv")
 193       .addEventListener("click", processModalClick);
 194   },
 195   watch: {
 196     // st.variants changes only once, at loading from [] to [...]
 197     "st.variants": function() {
 198       // Set problems vname (either all are set or none)
 199       if (this.problems.length > 0 && this.problems[0].vname == "")
 200         this.problems.forEach(p => this.setVname(p));
 201     },
 202     $route: function(to) {
 203       const pid = to.query["id"];
 204       if (!!pid) this.showProblem(this.problems.find(p => p.id == pid));
 205       else this.showOne = false;
 206     }
 207   },
 208   methods: {
 209     fenFocusIfOpened: function(event) {
 210       if (event.target.checked) {
 211         this.infoMsg = "";
 212         document.getElementById("inputFen").focus();
 213       }
 214     },
 215     setVname: function(prob) {
 216       prob.vname = this.st.variants.find(v => v.id == prob.vid).name;
 217     },
 218     firstChars: function(text) {
 219       let preparedText = text
 220         // Replace line jumps and <br> by spaces
 221         .replace(/\n/g, " ")
 222         .replace(/<br\/?>/g, " ")
 223         .replace(/<[^>]+>/g, "") //remove remaining HTML tags
 224         .replace(/[ ]+/g, " ") //remove series of spaces by only one
 225         .trim();
 226       const maxLength = 32; //arbitrary...
 227       if (preparedText.length > maxLength)
 228         return preparedText.substr(0, 32) + "...";
 229       return preparedText;
 230     },
 231     copyProblem: function(p1, p2) {
 232       for (let key in p1) p2[key] = p1[key];
 233     },
 234     setHrefPid: function(p) {
 235       // Change href => $route changes, watcher notices, call showProblem
 236       const curHref = document.location.href;
 237       document.location.href = curHref.split("?")[0] + "?id=" + p.id;
 238     },
 239     backToList: function() {
 240       // Change href => $route change, watcher notices, reset showOne to false
 241       document.location.href = document.location.href.split("?")[0];
 242     },
 243     resetCurProb: function() {
 244       this.curproblem.id = 0;
 245       this.curproblem.uid = 0;
 246       this.curproblem.vid = "";
 247       this.curproblem.vname = "";
 248       this.curproblem.fen = "";
 249       this.curproblem.diag = "";
 250       this.curproblem.instruction = "";
 251       this.curproblem.solution = "";
 252       this.curproblem.showSolution = false;
 253     },
 254     parseHtml: function(txt) {
 255       return !txt.match(/<[/a-zA-Z]+>/)
 256         ? txt.replace(/\n/g, "<br/>") //no HTML tag
 257         : txt;
 258     },
 259     changeVariant: function(prob) {
 260       this.setVname(prob);
 261       this.loadVariant(prob.vid, () => {
 262         // Set FEN if possible (might not be correct yet)
 263         if (V.IsGoodFen(prob.fen)) this.setDiagram(prob);
 264       });
 265     },
 266     loadVariant: async function(vid, cb) {
 267       // Condition: vid is a valid variant ID
 268       this.loadedVar = 0;
 269       const variant = this.st.variants.find(v => v.id == vid);
 270       const vModule = await import("@/variants/" + variant.name + ".js");
 271       window.V = vModule.VariantRules;
 272       this.loadedVar = vid;
 273       cb();
 274     },
 275     trySetDiagram: function(prob) {
 276       // Problem edit: FEN could be wrong or incomplete,
 277       // variant could not be ready, or not defined
 278       if (prob.vid > 0 && this.loadedVar == prob.vid && V.IsGoodFen(prob.fen))
 279         this.setDiagram(prob);
 280     },
 281     setDiagram: function(prob) {
 282       // Condition: prob.fen is correct and global V is ready
 283       const parsedFen = V.ParseFen(prob.fen);
 284       const args = {
 285         position: parsedFen.position,
 286         orientation: parsedFen.turn
 287       };
 288       prob.diag = getDiagram(args);
 289     },
 290     displayProblem: function(p) {
 291       return (
 292         (!this.selectedVar || p.vid == this.selectedVar) &&
 293         ((this.onlyMines && p.uid == this.st.user.id) ||
 294           (!this.onlyMines && p.uid != this.st.user.id))
 295       );
 296     },
 297     showProblem: function(p) {
 298       this.loadVariant(p.vid, () => {
 299         // The FEN is already checked at this stage:
 300         this.game.vname = p.vname;
 301         this.game.mycolor = V.ParseFen(p.fen).turn; //diagram orientation
 302         this.game.fenStart = p.fen;
 303         this.game.fen = p.fen;
 304         this.showOne = true;
 305         // $nextTick to be sure $refs["basegame"] exists
 306         this.$nextTick(() => {
 307           this.$refs["basegame"].re_setVariables(this.game); });
 308         this.copyProblem(p, this.curproblem);
 309       });
 310     },
 311     gotoPrevNext: function(e, prob, dir) {
 312       const startIdx = this.problems.findIndex(p => p.id == prob.id);
 313       let nextIdx = startIdx + dir;
 314       while (
 315         nextIdx >= 0 &&
 316         nextIdx < this.problems.length &&
 317         ((this.onlyMines && this.problems[nextIdx].uid != this.st.user.id) ||
 318           (!this.onlyMines && this.problems[nextIdx].uid == this.st.user.id))
 319       )
 320         nextIdx += dir;
 321       if (nextIdx >= 0 && nextIdx < this.problems.length)
 322         this.setHrefPid(this.problems[nextIdx]);
 323       else
 324         alert(this.st.tr["No more problems"]);
 325     },
 326     prepareNewProblem: function() {
 327       this.resetCurProb();
 328       window.doClick("modalNewprob");
 329     },
 330     sendProblem: function() {
 331       const error = checkProblem(this.curproblem);
 332       if (error) {
 333         alert(this.st.tr[error]);
 334         return;
 335       }
 336       const edit = this.curproblem.id > 0;
 337       this.infoMsg = "Processing... Please wait";
 338       ajax(
 339         "/problems",
 340         edit ? "PUT" : "POST",
 341         {
 342           data: { prob: this.curproblem },
 343           success: (ret) => {
 344             if (edit) {
 345               let editedP = this.problems.find(p => p.id == this.curproblem.id);
 346               this.copyProblem(this.curproblem, editedP);
 347               this.showProblem(editedP);
 348             }
 349             else {
 350               let newProblem = Object.assign({}, this.curproblem);
 351               newProblem.id = ret.id;
 352               newProblem.uid = this.st.user.id;
 353               newProblem.uname = this.st.user.name;
 354               this.problems = [newProblem].concat(this.problems);
 355             }
 356             document.getElementById("modalNewprob").checked = false;
 357             this.infoMsg = "";
 358           }
 359         }
 360       );
 361     },
 362     editProblem: function(prob) {
 363       // prob.diag might correspond to some other problem or be empty:
 364       this.setDiagram(prob); //V is loaded at this stage
 365       this.copyProblem(prob, this.curproblem);
 366       window.doClick("modalNewprob");
 367     },
 368     deleteProblem: function(prob) {
 369       if (confirm(this.st.tr["Are you sure?"])) {
 370         ajax(
 371           "/problems",
 372           "DELETE",
 373           {
 374             data: { id: prob.id },
 375             success: () => {
 376               ArrayFun.remove(this.problems, p => p.id == prob.id);
 377               this.backToList();
 378             }
 379           }
 380         );
 381       }
 382     }
 383   }
 384 };
 385 </script>
 386
 387 <style lang="sass" scoped>
 388 [type="checkbox"].modal+div .card
 389   max-width: 767px
 390   max-height: 100%
 391
 392 #inputFen
 393   width: 100%
 394
 395 textarea
 396   width: 100%
 397
 398 #diagram
 399   margin: 0 auto
 400   max-width: 400px
 401
 402 table#tProblems
 403   max-height: 100%
 404
 405 #controls
 406   margin: 0
 407   width: 100%
 408   text-align: center
 409   & > *
 410     margin: 0
 411
 412 p.oneInstructions
 413   margin: 0
 414   padding: 2px 5px
 415   background-color: lightgreen
 416
 417 #topPage
 418   span.vname
 419     font-weight: bold
 420     padding-left: var(--universal-margin)
 421   span.uname
 422     padding-left: var(--universal-margin)
 423   margin: 0 auto
 424   & > .nomargin
 425     margin: 0
 426   & > .marginleft
 427     margin: 0 0 0 15px
 428
 429 @media screen and (max-width: 767px)
 430   #topPage
 431     text-align: center
 432 </style>