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index.js
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index.js
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let tasks = [];
let completed = [];
checkForData();
loadCompleted();
function setAllFalse() {
completed = [];
for(let i = 0; i < 16; i++) {
completed.push(false);
}
saveCompleted();
}
function checkForData() {
let data = localStorage.getItem('indexes');
if(data == null) {
generateNewTasks();
return;
}
loadTasks(data);
}
function loadTasks(data) {
tasks = []
fetch('./database/tasks.json')
.then((response) => response.json())
.then((json) => {
let indexes = JSON.parse(data);
indexes.forEach(i => {
tasks.push(json.tasks[i]);
})
createGrid();
});
}
function generateNewTasks() {
tasks = []
setAllFalse();
fetch('./database/tasks.json')
.then((response) => response.json())
.then((json) => {
let indexes = [];
let jsonLength = json.tasks.length;
while (indexes.length < 16) {
let index = getRandomInt(jsonLength);
if(!indexes.includes(index)){
indexes.push(index);
}
}
indexes.forEach(i => {
tasks.push(json.tasks[i]);
})
localStorage.setItem('indexes', JSON.stringify(indexes));
createGrid();
});
}
function createGrid() {
let table = document.createElement('table');
table.classList.add('table');
let comp = JSON.parse(localStorage.getItem('completed'));
for(let i = 0; i < 4; i++) {
let tr = document.createElement('tr');
for(let j = 0; j < 4; j++) {
let td = document.createElement('td');
let div = document.createElement('div');
div.classList.add('content');
div.classList.add((i*4 + j) + '');
div.innerText = tasks[(i*4 + j)];
if(comp[(i*4 + j)]) {
div.classList.add('success');
}
div.addEventListener('click', (event) => {
succededTask(event.currentTarget);
});
td.appendChild(div);
tr.appendChild(td);
}
table.appendChild(tr);
}
document.querySelector('.table-container').appendChild(table);
}
function succededTask(element) {
element.classList.toggle('success')
let list = [...element.classList];
if(list.includes('success')){
list.splice(list.indexOf('success'), 1);
}
list.splice(list.indexOf('content'), 1);
completed[list[0]] = !completed[list[0]];
saveCompleted();
}
function saveCompleted() {
localStorage.setItem('completed', JSON.stringify(completed));
}
function loadCompleted() {
if(localStorage.getItem('completed') != null){
completed = JSON.parse(localStorage.getItem('completed'));
return;
}
setAllFalse();
}
function getRandomInt(max) {
return Math.floor(Math.random() * max);
}
document.querySelector('.generate').addEventListener('click', () => {
document.querySelector('.table').remove();
localStorage.removeItem('indexes');
generateNewTasks();
});
document.querySelector('.print').addEventListener('click', () => {
print();
});