#!/bin/bash

set -e

# Replace <your_access_key> with your Unsplash API access key

ACCESS_KEY="$HUGO_UNSPLASH_ACCESS_KEY"

COLLECTION_ID="$1"

# Initialize variables for pagination

page=1

per_page=30

total_pages=1

image_ids=""

# Get total photos in the collection and calc the total_pages

response=$(curl --silent --request GET "https://api.unsplash.com/collections/${COLLECTION_ID}" \

--header "Authorization: Client-ID ${ACCESS_KEY}")

total_photos=$(echo "${response}" | jq -r '.total_photos')

total_pages=$((total_photos/30 1))

# Loop through each page of the collection's photos until all photos have been retrieved

while [ $page -le $total_pages ]; do

# Make a request to the Unsplash API to retrieve the current page of the collection's photos

response=$(curl --silent --request GET "https://api.unsplash.com/collections/${COLLECTION_ID}/photos?page=${page}&per_page=${per_page}" \

--header "Authorization: Client-ID ${ACCESS_KEY}")

# Use jq to extract the image IDs from the response and append them to the existing list

page_image_ids=$(echo "${response}" | jq -r '.[].id')

image_ids="${image_ids}

${page_image_ids}"

page=$((page 1))

done

mkdir -p static/images

echo "---" > static/images/index.yml

new_images=0

# Download each image in the list to the static/images folder if it doesn't already exist

for id in $image_ids; do

# Check if the image file exists locally

if [ ! -f "static/images/${id}.jpg" ]; then

# If the image file doesn't exist locally, download it from the Unsplash API

url="https://unsplash.com/photos/${id}/download?fm=jpg&w=1600&h=900&fit=max"

echo "$url"

curl -sSL "$url" > static/images/"${id}".jpg

new_images=$((new_images 1))

fi

echo "- ${id}.jpg" >> static/images/index.yml

done

[ "$new_images" != "0" ] && echo "New images added: $new_images"