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script.js
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script.js
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const apiKey = 'DaYe-aEmAaJxzgjsSuFsjHILYNzY7BWRWTiYgg4bl_k';
const unsplashApiURL = 'https://api.unsplash.com';
const fetchTriggerPos = 1000;
const minimizeHeaderPos = 58;
const maximizeHeaderPos = 45;
const minimizedClass = 'minimized';
const maximizedClass = 'maximized';
const imageContainerEl = document.getElementById('image-container');
const errorContainerEl = document.getElementById('error-container');
const mainHeaderEl = document.getElementById('main-header');
const loaderEl = document.getElementById('loader');
const images = [];
let page = 1;
let count = 5;
let fullHeader = true;
let loadedImagesCount = 0;
let allImagesLoaded = false;
async function getImages() {
if (page === 1) {
showLoadingSpinner();
}
try {
const url = `${unsplashApiURL}/photos/random/?client_id=${apiKey}&query=${encodeURIComponent('vans shoes')}&per_page=${count}&page=${page}&count=${count}`;
const response = await fetch(url);
const data = await response.json();
data.forEach((image) => {
images.push({
id: image.id,
user: image.user,
likes: image.likes,
href: image.links.html,
src: image.urls.regular,
alt: image.alt_description,
title: image.alt_description,
});
});
displayImages();
page++;
} catch (error) {
console.log('Failed to fetch images - ', error.message);
errorContainerEl.innerText = error.message;
loaderEl.hidden = true;
mainHeaderEl.hidden = true;
imageContainerEl.hidden = true;
errorContainerEl.hidden = false;
}
}
function imageLoaded() {
loadedImagesCount++;
if (loadedImagesCount === images.length) {
allImagesLoaded = true;
loaderEl.hidden = true;
}
}
function displayImages() {
imageContainerEl.hidden = false;
const endIndex = (page * count);
const startIndex = endIndex - count;
images.forEach((image, index) => {
if (index >= startIndex && index < endIndex) {
const altTitle = `${image.alt} by ${image.user.name} with ${image.likes} likes`;
const anchorEl = document.createElement('a');
setAttributes(anchorEl, {
href: image.href,
target: '_blank',
});
const imgEl = document.createElement('img');
imgEl.addEventListener('load', imageLoaded);
setAttributes(imgEl, {
src: image.src,
alt: altTitle,
title: altTitle,
});
const photographerEl = document.createElement('span');
photographerEl.classList.add('photographer');
photographerEl.innerText = `\nby ${image.user.name}`;
const likeContainerEl = document.createElement('div');
likeContainerEl.classList.add('like-container');
const heartEl = document.createElement('i');
heartEl.classList.add('fa-regular');
heartEl.classList.add('fa-heart');
const likeCountEl = document.createElement('span');
likeCountEl.classList.add('likes-count');
likeCountEl.innerText = image.likes;
likeContainerEl.appendChild(heartEl);
likeContainerEl.appendChild(likeCountEl);
const textContainerEl = document.createElement('div');
textContainerEl.classList.add('text-container');
textContainerEl.innerText = image.title;
textContainerEl.appendChild(photographerEl);
textContainerEl.appendChild(likeContainerEl);
anchorEl.appendChild(imgEl);
anchorEl.appendChild(textContainerEl);
imageContainerEl.appendChild(anchorEl);
}
});
}
function setAttributes(element, attributes) {
for (const key in attributes) {
element.setAttribute(key, attributes[key]);
}
}
function showLoadingSpinner() {
loaderEl.hidden = false;
}
window.onload = async () => {
await getImages();
window.addEventListener('scroll', () => {
const scrollPosition = window.innerHeight + window.scrollY;
const triggerFetchPoint = document.body.offsetHeight - fetchTriggerPos;
const fetchMoreImages = scrollPosition >= triggerFetchPoint;
if (window.scrollY > minimizeHeaderPos) {
mainHeaderEl.classList.add(minimizedClass);
}
if (window.scrollY < maximizeHeaderPos) {
mainHeaderEl.classList.remove(maximizedClass);
}
if (allImagesLoaded && fetchMoreImages) {
errorContainerEl.hidden = true;
allImagesLoaded = false;
getImages();
}
});
}