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Added toggle feature for tags #5

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284 changes: 138 additions & 146 deletions background.js
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Original file line number Diff line number Diff line change
@@ -1,17 +1,16 @@
const url = window.location.href;

var id;
var index;
let id;
let index;

if(url[23] == 'c'){
var data = url.slice(31, url.length);
var dataArray = data.split(/[\/\?]/);
if (url[23] === "c") {
const data = url.slice(31, url.length);
const dataArray = data.split(/[\/\?]/);
id = dataArray[0];
index = dataArray[2];
}
else{
var data = url.slice(42, url.length);
var dataArray = data.split(/[\/\?]/);
} else {
const data = url.slice(42, url.length);
const dataArray = data.split(/[\/\?]/);
id = dataArray[0];
index = dataArray[1];
}
Expand All @@ -20,158 +19,151 @@ const requestURL = `https://codeforces.com/api/contest.standings?contestId=${id}

fetchData();

async function fetchData(){
var rating = null;
var tags = null;
function buildTagHtml(tag) {
return `
<div class="roundbox tag-toggle hidden" style="margin:2px; padding:0 3px 2px 3px; background-color:#f0f0f0;float:left;">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="roundbox-lb">&nbsp;</div>
<div class="roundbox-rb">&nbsp;</div>
<span class="tag-box" style="font-size:1.2rem;" title="Difficulty">
${tag}
</span>
</div>
`;
}

function buildTagsHtml(tags) {
if (!tags || !tags.length) {
return "";
}

return tags.map(buildTagHtml).join("");
}

function buildBoxHtml(rating, tags) {
const hasTags = Boolean(tags && tags.length);

if (rating === -1) {
return `
<div class="roundbox sidebox cfgr-container" style="">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="caption titled">→ CF GetRating
<div class="top-links"></div>
</div>
<div>
<div style="margin:1em;font-size:0.8em;color: red;">
Codeforces API Error.
</div>
</div>
<div style="text-align:center;margin-bottom:15px">
<a href="https://codeforces.com/contest/${id}/standings" target="_blank"><button>Contest Standings</button></a>
</div>
</div>
`;
}

try{
const ratingContent =
rating == null
? `
<div style="margin-bottom: 5px; font-size:0.8em;color: red;">
Rating not available for this question.
</div>
`
: `
<div class="roundbox" style="margin:2px; padding:0 3px 2px 3px; background-color:#f0f0f0;float:left;">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="roundbox-lb">&nbsp;</div>
<div class="roundbox-rb">&nbsp;</div>
<span class="tag-box" style="font-size:1.2rem;" title="Difficulty">
*${rating}
</span>
</div>
`;

return `
<div class="roundbox sidebox cfgr-container" style="">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="caption titled">→ CF GetRating
<div class="top-links"></div>
</div>
<div style="padding: 0.5em;">
${ratingContent}
${buildTagsHtml(tags)}
<div style="clear:both;text-align:right;font-size:1.1rem;"></div>
</div>
${hasTags
? `
<div style="text-align:center;">
<button id="cfgr-toggle-tags" style="margin-bottom:3px; width: 50%;">Show Tags</button>
</div>`
: ""
}
<div style="text-align:center;">
<a href="https://codeforces.com/contest/${id}/standings" target="_blank"><button style="margin-bottom:15px; margin-top: 3px; width: 50%;">Contest Standings</button></a>
</div>
</div>
`;
}

function attachToggleHandler(container) {
const toggleButton = container.querySelector("#cfgr-toggle-tags");
if (!toggleButton) {
return;
}

toggleButton.addEventListener("click", () => {
const tagNodes = container.querySelectorAll(".tag-toggle");
if (!tagNodes.length) {
return;
}

const shouldShow = Array.from(tagNodes).some((node) =>
node.classList.contains("hidden")
);
tagNodes.forEach((node) => {
node.classList.toggle("hidden", !shouldShow);
});
toggleButton.textContent = shouldShow ? "Hide Tags" : "Show Tags";
});
}

async function fetchData() {
let rating = null;
let tags = null;

try {
const response = await fetch(requestURL);
const data = await response.json();
const problemsList = data.result.problems;

if(data.status == "OK"){
for(var i = 0; i < problemsList.length; i++){
if(problemsList[i].index == index){
if (data.status === "OK") {
for (let i = 0; i < problemsList.length; i++) {
if (problemsList[i].index === index) {
rating = problemsList[i].rating;
tags = problemsList[i].tags;
break;
}
}
}
else{
} else {
rating = -1;
}
}
catch(e){
} catch (e) {
rating = -1;
}

var toInsert;
if(rating == null){
toInsert = `
<div class="roundbox sidebox" style="">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="caption titled">→ CF GetRating
<div class="top-links"></div>
</div>
<div style="padding: 0.5em;">
<div style="margin-bottom: 5px; font-size:0.8em;color: red;">
Rating not available for this question.
</div>

`

tags.forEach((tag) => {
toInsert += `
<div class="roundbox hidden" style="margin:2px; padding:0 3px 2px 3px; background-color:#f0f0f0;float:left;">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="roundbox-lb">&nbsp;</div>
<div class="roundbox-rb">&nbsp;</div>
<span class="tag-box" style="font-size:1.2rem;" title="Difficulty">
${tag}
</span>
</div>
`
});

toInsert += `
<div style="clear:both;text-align:right;font-size:1.1rem;">
</div>
</div>

<div style="text-align:center;">
<button onclick='
document.querySelectorAll(".hidden").forEach((item) => {
item.classList.remove("hidden");
});
'
style="margin-bottom:3px; width: 50%;">Show All Tags</button>
</div>
<div style="text-align:center;">
<a href="https://codeforces.com/contest/${id}/standings" target="_blank"><button style="margin-bottom:15px; margin-top: 3px; width: 50%;">Contest Standings</button></a>
</div>

</div>
`
}
else if(rating == -1){
toInsert = `
<div class="roundbox sidebox" style="">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="caption titled">→ CF GetRating
<div class="top-links"></div>
</div>
<div>
<div style="margin:1em;font-size:0.8em;color: red;">
Codeforces API Error.
</div>
</div>
<div style="text-align:center;margin-bottom:15px">
<a href="https://codeforces.com/contest/${id}/standings" target="_blank"><button>Contest Standings</button></a>
</div>
</div>
`
const getRatingBox = document.createElement("div");
getRatingBox.innerHTML = buildBoxHtml(rating, tags);
const sidebar = document.querySelector("#sidebar");
if (!sidebar) {
return;
}
else{
toInsert = `
<div class="roundbox sidebox" style="">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="caption titled">→ CF GetRating
<div class="top-links"></div>
</div>
<div style="padding: 0.5em;">
<div class="roundbox" style="margin:2px; padding:0 3px 2px 3px; background-color:#f0f0f0;float:left;">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="roundbox-lb">&nbsp;</div>
<div class="roundbox-rb">&nbsp;</div>
<span class="tag-box" style="font-size:1.2rem;" title="Difficulty">
*${rating}
</span>
</div>

`

tags.forEach((tag) => {
toInsert += `
<div class="roundbox hidden" style="margin:2px; padding:0 3px 2px 3px; background-color:#f0f0f0;float:left;">
<div class="roundbox-lt">&nbsp;</div>
<div class="roundbox-rt">&nbsp;</div>
<div class="roundbox-lb">&nbsp;</div>
<div class="roundbox-rb">&nbsp;</div>
<span class="tag-box" style="font-size:1.2rem;" title="Difficulty">
${tag}
</span>
</div>
`
});

toInsert += `
<div style="clear:both;text-align:right;font-size:1.1rem;">
</div>
</div>

<div style="text-align:center;">
<button onclick='
document.querySelectorAll(".hidden").forEach((item) => {
item.classList.remove("hidden");
});
'
style="margin-bottom:3px; width: 50%;">Show All Tags</button>
</div>
<div style="text-align:center;">
<a href="https://codeforces.com/contest/${id}/standings" target="_blank"><button style="margin-bottom:15px; margin-top: 3px; width: 50%;">Contest Standings</button></a>
</div>

</div>
`
}
document.querySelectorAll(".cfgr-container").forEach((node) => node.remove());

const getRatingBox = document.createElement("div");
getRatingBox.innerHTML = toInsert;
document.querySelector("#sidebar").appendChild(getRatingBox);
}
sidebar.appendChild(getRatingBox);
attachToggleHandler(getRatingBox);
}