namespace :alt_styles do
	desc "Import alt style info from the NC Mall"
	task :import => :environment do
		neologin = STDIN.getpass("Neologin cookie: ")

		all_species = Species.order(:name).to_a

		# Load 10 species pages from the NC Mall at a time.
		barrier = Async::Barrier.new
		semaphore = Async::Semaphore.new(10, parent: barrier)
		styles_by_species_id = {}
		Sync do
			num_loaded = 0
			num_total = all_species.size
			print "0/#{num_total} species loaded"

			all_species.each do |species|
				semaphore.async {
					begin
						styles_by_species_id[species.id] = Neopets::NCMall.load_styles(
							species_id: species.id,
							neologin:,
						)
					rescue => error
						puts "\n⚠️  Error loading for #{species.human_name}, skipping: #{error.message}"
					end
					num_loaded += 1
					print "\r#{num_loaded}/#{num_total} species loaded"
				}
			end

			# Wait until all tasks are done.
			barrier.wait
		ensure
			barrier.stop # If something goes wrong, clean up all tasks.
		end
		print "\n"

		style_ids = styles_by_species_id.values.flatten(1).map { |s| s[:oii] }
		style_records_by_id =
			AltStyle.where(id: style_ids).to_h { |as| [as.id, as] }

		all_species.each do |species|
			styles = styles_by_species_id[species.id]
			next if styles.nil?

			counts = {changed: 0, unchanged: 0, skipped: 0}
			styles.each do |style|
				record = style_records_by_id[style[:oii]]
				label = "#{style[:name]} (#{style[:oii]})"
				if record.nil?
					puts "⚠️  [#{label}]: Not modeled yet, skipping"
					counts[:skipped] += 1
					next
				end

				if !record.real_thumbnail_url?
					record.thumbnail_url = style[:image]
					puts "✅ [#{label}]: Thumbnail URL is now #{style[:image].inspect}"
				elsif record.thumbnail_url != style[:image]
					puts "⚠️  [#{label}: Thumbnail URL may have changed, handle manually? " +
						"#{record.thumbnail_url.inspect} -> #{style[:image].inspect}"
				end

				new_series_name = style[:name].match(/\A\S+/)[0] # first word
				if !record.real_series_name?
					record.series_name = new_series_name
					puts "✅ [#{label}]: Series name is now #{new_series_name.inspect}"
				elsif record.series_name != new_series_name
					puts "⚠️  [#{label}: Series name may have changed, handle manually? " +
						"#{record.series_name.inspect} -> #{new_series_name.inspect}"
				end

				if record.changed?
					counts[:changed] += 1
				else
					counts[:unchanged] += 1
				end

				record.save!
			end

			puts "#{species.human_name}: #{counts[:changed]} changed, " +
				"#{counts[:unchanged]} unchanged, #{counts[:skipped]} skipped"
		end
	end
end