X-Git-Url: https://git.auder.net/?p=vchess.git;a=blobdiff_plain;f=public%2Fjavascripts%2Fcomponents%2Fproblems.js;h=53077049d12dc61bd071fa2160e38c67c86cba08;hp=e3ab998d0fda67ee450e02a26eaaeea86bd44939;hb=fd08ab2c5b8931bb8c95cf7e9f2f95122647f991;hpb=8ef618ef05070642849f50861399116c2d69a816 diff --git a/public/javascripts/components/problems.js b/public/javascripts/components/problems.js index e3ab998d..53077049 100644 --- a/public/javascripts/components/problems.js +++ b/public/javascripts/components/problems.js @@ -4,9 +4,11 @@ Vue.component('my-problems', { 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 @@ -30,13 +32,14 @@ Vue.component('my-problems', { skip_next -
+

{{ curProb.instructions }}

- + +

{{ translations["Show solution"] }} @@ -45,12 +48,22 @@ Vue.component('my-problems', { {{ curProb.solution }}

+ +
+
+ +
- @@ -104,39 +117,53 @@ Vue.component('my-problems', {
+ +
+
+ +

+ {{ nomoreMessage }} +

+
+
`, - 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)); //callback? - 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]; @@ -144,70 +171,102 @@ Vue.component('my-problems', { curProblems: function() { switch (this.display) { - case "list": + case "others": return this.problems; - case "myList": + case "mine": return this.myProblems; } }, // TODO?: get 50 from server but only show 10 at a time (for example) showNext: function(direction) { - if (this.curIdx < 0) - return 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); - const newSize = curProbs.length; - if (curSize == newSize) //no problems found - return; - switch (direction) + const delta = Math.abs(prob.id - problem.id); + if (delta < smallestDistance && + ((direction == "backward" && prob.id < problem.id) + || (direction == "forward" && prob.id > problem.id))) { - case "forward": - this.setCurIdx(this.curIdx+1); - break; - case "backward": - this.setCurIdx(newSize - curSize + this.curIdx-1); - break; + neighbor = prob; + smallestDistance = delta; } } + 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 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 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; + } } - }); + ); }, previewProblem: function() { if (!V.IsGoodFen(this.newProblem.fen)) @@ -218,6 +277,22 @@ Vue.component('my-problems', { return alert(translations["Empty solution"]); this.modalProb.preview = true; }, + 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( @@ -230,17 +305,12 @@ Vue.component('my-problems', { { this.modalProb.added = Date.now(); this.modalProb.preview = false; - this.curProblems().push(JSON.parse(JSON.stringify(this.modalProb))); + this.myProblems.push(JSON.parse(JSON.stringify(this.modalProb))); } else this.modalProb.id = 0; } ); }, - // TODO: catch signal edit or delete ; on edit: modify modalProb and show modal - deleteProblem: function(pid) { - // TODO: AJAX call - // TODO: delete problem in curProblems() list - }, }, })