script.js

const imageContainer = document.getElementById('image-container');
const loader = document.getElementById('loader');

let photosArray = [];

let isInitialLoad = true

// Unsplash API
const initialCount = 5;
const apiKey = '0wGM1jWnzvnlSfpCrP5SEq_0nna_pI5QjNnYAYgecCw';
const apiUrl = `https://api.unsplash.com/photos/random/?client_id=${apiKey}&count=${initialCount}`;

function updateAPIURLWithNewCount (picCount) {
  apiUrl = `https://api.unsplash.com/photos/random?client_id=${apiKey}&count=${picCount}`;
}

function imageLoaded() {
  imagesLoaded++;
  if (imagesLoaded === totalImages) {
    ready = true;
    loader.hidden = true;
  }
}

// Helper Function to Set Attributes on DOM Elements
function setAttributes(element, attributes) {
  for (const key in attributes) {
    element.setAttribute(key, attributes[key]);
  }
}

// Create Elements For Links & Photos, Add to DOM
function displayPhotos() {
  // Run function for each object in photosArray
  photosArray.forEach((photo) => {
    // Create <a> to link to Unsplash
    const item = document.createElement('a');
    setAttributes(item, {
      href: photo.links.html,
      target: '_blank',
    });
    // Create <img> for photo
    const img = document.createElement('img');
    setAttributes(img, {
      src: photo.urls.regular,
      alt: photo.alt_description,
      title: photo.alt_description,
    });
    // Put <img> inside <a>, then put both inside imageContainer Element
    item.appendChild(img);
    imageContainer.appendChild(item);
  });
}


// Get photos from Unsplash API
// Get photos from Unsplash API
async function getPhotos() {
  try {
    const response = await fetch(apiUrl);
    photosArray = await response.json();
    displayPhotos();
    if (isInitialLoad) { // NEW LINE ****
      updateAPIURLWithNewCount(30) // NEW LINE ****
      isInitialLoad = false // NEW LINE ****
    } // NEW LINE ****
  } catch (error) {
    // Catch Error Here
  }
}


// Check to see if scrolling near bottom of page, Load More Photos
window.addEventListener('scroll', () => {
  if (window.innerHeight + window.scrollY >= document.body.offsetHeight - 1000) {
    getPhotos();
    console.log('load more');
  }
});

// On Load
getPhotos();