## Removes previous wallpaper file, and gets new image from Windows Spotlight

require 'fileutils'
require 'exifr/jpeg'

SPOTLIGHT_IMAGES_PATH = File.join(ENV["LocalAppData"].split('\\') + ["Packages", "Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy", "LocalState", "Assets"])
WALLPAPER_FILENAME_FILE = "currect_wallpaper_filename.txt"

spotlight_image_path = Dir[File.join(SPOTLIGHT_IMAGES_PATH, "*")]
  .select{|f| File.size(f) > 50e3 }
  .select do |f|
    exif = EXIFR::JPEG.new(f)
    exif.width == 1920 && exif.height == 1080
  rescue
    false
  end
  .sample


if spotlight_image_path
  begin
    old_wallpaper_filename = File.read(WALLPAPER_FILENAME_FILE)
    if old_wallpaper_filename && !old_wallpaper_filename.empty?
      old_wallpaper_path = File.join(Dir.pwd, old_wallpaper_filename)
      FileUtils.rm_f(old_wallpaper_path)
    end
  rescue
  end

  new_wallpaper_name = File.basename(spotlight_image_path) + ".jpg"
  dest_path = File.join(Dir.pwd, new_wallpaper_name)
  File.write(WALLPAPER_FILENAME_FILE, new_wallpaper_name)
  FileUtils.cp(spotlight_image_path, dest_path)
end