userId: user.id,
problems: [], //oldest first
myProblems: [], //same, but only mine
- display: "list", //or "myList"
- curIdx: -1, //index in (current) problems array
+ singletons: [], //requested problems (using #num)
+ display: "others", //or "mine"
+ curProb: null, //(reference to) current displayed problem (if any)
showSolution: false,
+ pbNum: 0, //to navigate directly to some problem
// New problem (to upload), or existing problem to edit:
modalProb: {
id: 0, //defined if it's an edit
},
};
},
- // TODO: problem edit, just fill modalProb + adjust AJAX call
- // problem delete: just AJAX call + confirm
template: `
<div class="col-sm-12 col-md-10 col-md-offset-1 col-lg-8 col-lg-offset-2">
<div id="problemControls" class="button-group">
<i class="material-icons">skip_next</i>
</button>
</div>
- <div id="mainBoard" v-show="curIdx>=0">
+ <div id="mainBoard" v-show="!!curProb">
<div id="instructions-div" class="section-content">
- <p id="problem-instructions">{{ curProb.instructions }}</p>
+ <p id="problem-instructions">
+ {{ curProb.instructions }}
+ </p>
</div>
<my-board :fen="curProb.fen"></my-board>
<div id="solution-div" class="section-content">
<h3 class="clickable" @click="showSolution = !showSolution">
{{ translations["Show solution"] }}
</h3>
- <p id="problem-solution" v-show="showSolution">{{ curProb.solution }}</p>
- <div class="button-group" v-show="curProb.uid==userId">
- <button>Edit</button>
- <button>Delete</button>
- </div>
+ <p id="problem-solution" v-show="showSolution">
+ {{ curProb.solution }}
+ </p>
</div>
+ <button @click="displayList()">
+ <span>Back to list display</span>
+ </button>
+ </div>
+ <div>
+ <input type="text" placeholder="Type problem number" v-model="pbNum"/>
+ <button @click="showProblem()">
+ <span>Show problem</span>
+ </button>
</div>
- <button v-if="!!userId" @click="toggleListDisplay()">My problems (only)</button>
- <my-problem-summary v-show="curIdx<0"
- v-for="(p,idx) in sortedProblems" @click="setCurIdx(idx)"
- v-bind:prob="p" v-bind:preview="false" v-bind:key="p.id">
+ <button v-if="!!userId" @click="toggleListDisplay()">
+ <span>My problems (only)</span>
+ </button>
+ <my-problem-summary v-show="!curProb"
+ v-on:edit-problem="editProblem(p)" v-on:delete-problem="deleteProblem(p.id)"
+ v-for="p in curProblems" @click="curProb=p"
+ v-bind:prob="p" v-bind:userid="userId" v-bind:key="p.id">
</my-problem-summary>
- <input type="checkbox" id="modal-newproblem" class="modal">
+ <input type="checkbox" id="modal-newproblem" class="modal"/>
<div role="dialog" aria-labelledby="modalProblemTxt">
<div v-show="!modalProb.preview" class="card newproblem-form">
- <label for="modal-newproblem" class="modal-close"></label>
- <h3 id="modalProblemTxt">{{ translate("Add a problem") }}</h3>
- <form @submit.prevent="previewNewProblem()">
+ <label for="modal-newproblem" class="modal-close">
+ </label>
+ <h3 id="modalProblemTxt">
+ {{ translate("Add a problem") }}
+ </h3>
+ <form @submit.prevent="previewProblem()">
<fieldset>
<label for="newpbFen">FEN</label>
<input id="newpbFen" type="text" v-model="modalProb.fen"
:placeholder='translate("Full FEN description")'/>
</fieldset>
<fieldset>
- <p class="emphasis">{{ translate("Safe HTML tags allowed") }}</p>
- <label for="newpbInstructions">{{ translate("Instructions") }}</label>
+ <p class="emphasis">
+ {{ translate("Safe HTML tags allowed") }}
+ </p>
+ <label for="newpbInstructions">
+ {{ translate("Instructions") }}
+ </label>
<textarea id="newpbInstructions" v-model="modalProb.instructions"
- :placeholder='translate("Describe the problem goal")'></textarea>
- <label for="newpbSolution">{{ translate("Solution") }}</label>
+ :placeholder='translate("Describe the problem goal")'>
+ </textarea>
+ <label for="newpbSolution">
+ {{ translate("Solution") }}
+ </label>
<textarea id="newpbSolution" v-model="modalProb.solution"
- :placeholder='translate("How to solve the problem?")'></textarea>
- <button class="center-btn">{{ translate("Preview") }}</button>
+ :placeholder='translate("How to solve the problem?")'>
+ </textarea>
+ <button class="center-btn">
+ {{ translate("Preview") }}
+ </button>
</fieldset>
</form>
</div>
<div v-show="modalProb.preview" class="card newproblem-preview">
- <label for="modal-newproblem" class="modal-close"></label>
- <my-problem-summary v-bind:prob="modalProb" v-bind:preview="true"></my-problem-summary>
+ <label for="modal-newproblem" class="modal-close">
+ </label>
+ <my-problem-summary v-bind:prob="modalProb" v-bind:userid="userId">
+ </my-problem-summary>
<div class="button-group">
- <button @click="modalProb.preview=false">{{ translate("Cancel") }}</button>
- <button @click="sendNewProblem()">{{ translate("Send") }}</button>
+ <button @click="modalProb.preview=false">
+ {{ translate("Cancel") }}
+ </button>
+ <button @click="sendProblem()">
+ {{ translate("Send") }}
+ </button>
</div>
</div>
</div>
+ <input id="modalNomore" type="checkbox" class="modal"/>
+ <div role="dialog" aria-labelledby="nomoreMessage">
+ <div class="card smallpad small-modal text-center">
+ <label for="modalNomore" class="modal-close"></label>
+ <h3 id="nomoreMessage" class="section">
+ {{ nomoreMessage }}
+ </h3>
+ </div>
+ </div>
</div>
`,
- computed: {
- sortedProblems: function() {
- // Newest problem first
- return this.curProblems.sort((a,b) => a.added - b.added);
- },
- curProb: function() {
- switch (this.display)
- {
- case "list":
- return this.problems[this.curIdx];
- case "myList":
- return this.myProblems[this.curIdx];
- }
- },
- },
created: function() {
if (location.hash.length > 0)
- {
- this.getOneProblem(location.hash.slice(1));
- this.curIdx = 0; //TODO: a bit more subtle, depending if it's my problem or not (set display)
- }
+ this.showProblem(location.hash.slice(1));
else
- {
- // Fetch most recent problems from server
- this.fetchProblems("backward"); //TODO: backward in time from the future. Second argument?
- }
+ this.firstFetch();
},
methods: {
- setCurIndex: function(idx) {
- this.curIdx = idx;
- location.hash = "#" + idx;
+ firstFetch: function() {
+ // Fetch most recent problems from server, for both lists
+ this.fetchProblems("others", "bacwkard");
+ this.fetchProblems("mine", "bacwkard");
+ this.listsInitialized = true;
+ },
+ showProblem: function(num) {
+ const pid = num || this.pbNum;
+ location.hash = "#" + pid;
+ const pIdx = this.singletons.findIndex(p => p.id == pid);
+ if (pIdx >= 0)
+ curProb = this.singletons[pIdx];
+ else
+ {
+ // Cannot find problem in current set; get from server, and add to singletons.
+ ajax(
+ "/problems/" + variant.name + "/" + pid, //TODO: use variant._id ?
+ "GET",
+ response => {
+ if (!!response.problem)
+ {
+ this.singletons.push(response.problem);
+ this.curProb = response.problem;
+ }
+ else
+ this.noMoreProblems("Sorry, problem " + pid + " does not exist");
+ }
+ );
+ }
},
translate: function(text) {
return translations[text];
curProblems: function() {
switch (this.display)
{
- case "list":
+ case "others":
return this.problems;
- case "myList":
+ case "mine":
return this.myProblems;
}
},
- // TODO: dans tous les cas si on n'affiche qu'un seul problème,
- // le curseur ne doit se déplacer que d'une unité.
+ // TODO?: get 50 from server but only show 10 at a time (for example)
showNext: function(direction) {
- if (this.curIdx < 0)
- this.fetchProblems(direction);
+ if (!this.curProb)
+ return this.fetchProblems(this.display, direction);
+ // Show next problem (older or newer):
let curProbs = this.curProblems();
- if ((this.curIdx > 0 && direction=="backward")
- || (this.curIdx < curProbs.length-1 && direction=="forward"))
+ // Try to find a neighbour problem in the direction, among current set
+ const neighbor = this.findClosestNeighbor(this.curProb, curProbs, direction);
+ if (!!neighbor)
{
- this.setCurIdx(this.curIdx + (direction=="forward" ? 1 : -1));
+ this.curProb = neighbor;
+ return;
}
- else //at boundary
+ // Boundary case: nothing in current set, need to fetch from server
+ const curSize = curProbs.length;
+ this.fetchProblems(this.display, direction);
+ const newSize = curProbs.length;
+ if (curSize == newSize) //no problems found
+ return this.noMoreProblems("No more problems in this direction");
+ // Ok, found something:
+ this.curProb = this.findClosestNeighbor(this.curProb, curProbs, direction);
+ },
+ findClosestNeighbor: function(problem, probList, direction) {
+ let neighbor = undefined;
+ let smallestDistance = Number.MAX_SAFE_INTEGER;
+ for (let prob of probList)
{
- const curSize = curProbs.length;
- this.fetchProblems(direction);
- if (curProbs.length
+ const delta = Math.abs(prob.id - problem.id);
+ if (delta < smallestDistance &&
+ ((direction == "backward" && prob.id < problem.id)
+ || (direction == "forward" && prob.id > problem.id)))
+ {
+ neighbor = prob;
+ smallestDistance = delta;
+ }
}
- else
- this.setCurIndex(--this.curIdx);
-
-
- if (this.curIdx == this.problems.length - 1)
- this.fetchProblems("forward");
- else
- this.curIdx++;
- location.hash = this.curIdx;
+ return neighbor;
+ },
+ noMoreProblems: function(message) {
+ this.nomoreMessage = message;
+ let modalNomore = document.getElementById("modalNomore");
+ modalNomore.checked = true;
+ setTimeout(() => modalNomore.checked = false, 2000);
+ },
+ displayList: function() {
+ this.curProb = null;
+ location.hash = "";
+ // Fetch problems if first call (if #num, and then lists)
+ if (!this.listsInitialized)
+ this.firstFetch();
},
toggleListDisplay: function() {
- this.display = (this.display == "list" ? "myList" : "list");
+ this.display = (this.display == "others" ? "mine" : "others");
},
- // TODO: modal "there are no more problems"
- fetchProblems: function(direction) {
- const problems = if ... this.problems ... ou this.myProblems;
- if (this.problems.length == 0)
- return; //what could we do?! -------> ask problems older than MAX_NUMBER + backward
- // Search for newest date (or oldest)
- let last_dt = this.problems[0].added;
- for (let i=0; i<this.problems.length; i++)
+ fetchProblems: function(type, direction) {
+ let problems = (type == "others" ? this.problems : this.myProblems);
+ let last_dt = (direction=="forward" ? 0 : Number.MAX_SAFE_INTEGER);
+ if (this.problems.length > 0)
{
- if ((direction == "forward" && this.problems[i].added > last_dt) ||
- (direction == "backward" && this.problems[i].added < last_dt))
+ // Search for newest date (or oldest)
+ last_dt = problems[0].added;
+ for (let i=1; i<problems.length; i++)
{
- last_dt = this.problems[i].added;
+ if ((direction == "forward" && this.problems[i].added > last_dt) ||
+ (direction == "backward" && this.problems[i].added < last_dt))
+ {
+ last_dt = this.problems[i].added;
+ }
}
}
- ajax("/problems/" + variant.name, "GET", { //TODO: use variant._id ?
- direction: direction,
- last_dt: last_dt,
- }, response => {
- if (response.problems.length > 0)
+ ajax(
+ "/problems/" + variant.name, //TODO: use variant._id ?
+ "GET",
{
- this.problems = response.problems
- .sort((p1,p2) => { return p1.added - p2.added; });
- this.setCurIndex(response.problems.length - 1);
+ type: type,
+ direction: direction,
+ last_dt: last_dt,
+ },
+ response => {
+ if (response.problems.length > 0)
+ {
+ Array.prototype.push.apply(problems,
+ response.problems.sort((p1,p2) => { return p1.added - p2.added; }));
+ // If one list is empty but not the other, show the non-empty
+ const otherArray = (type == "mine" ? this.problems : this.myProblems);
+ if (problems.length > 0 && otherArray.length == 0)
+ this.display = type;
+ }
}
- });
+ );
},
- previewNewProblem: function() {
+ previewProblem: function() {
if (!V.IsGoodFen(this.newProblem.fen))
return alert(translations["Bad FEN description"]);
if (this.newProblem.instructions.trim().length == 0)
return alert(translations["Empty solution"]);
this.modalProb.preview = true;
},
- // TODO: adjust for update too
- sendNewProblem: function() {
+ editProblem: function(prob) {
+ this.modalProb = prob;
+ document.getElementById("modal-newproblem").checked = true;
+ },
+ deleteProblem: function(pid) {
+ ajax(
+ "/problems/" + variant.name + "/" + pid, //TODO: with variant.id ?
+ "DELETE",
+ response => {
+ // Delete problem from the list on client side
+ let problems = this.curProblems();
+ const pIdx = problems.findIndex(p => p.id == pid);
+ problems.splice(pIdx, 1);
+ }
+ );
+ },
+ sendProblem: function() {
// Send it to the server and close modal
- ajax("/problems/" + variant.name, "POST", { //TODO: with variant._id ?
- fen: this.newProblem.fen,
- instructions: this.newProblem.instructions,
- solution: this.newProblem.solution,
- }, response => {
- this.modalProb.added = Date.now();
- this.curProblems().push(JSON.parse(JSON.stringify(this.modalProb)));
- document.getElementById("modal-newproblem").checked = false;
- this.modalProb.preview = false;
- });
+ ajax(
+ "/problems/" + variant.name, //TODO: with variant.id ?
+ (this.modalProb.id > 0 ? "PUT" : "POST"),
+ this.modalProb,
+ response => {
+ document.getElementById("modal-newproblem").checked = false;
+ if (this.modalProb.id == 0)
+ {
+ this.modalProb.added = Date.now();
+ this.modalProb.preview = false;
+ this.myProblems.push(JSON.parse(JSON.stringify(this.modalProb)));
+ }
+ else
+ this.modalProb.id = 0;
+ }
+ );
},
- // TODO: AJAX for problem deletion
},
})