manifestor.rb

require 'uri'
require 'fileutils'
require 'iiif/presentation'
require 'json'

collection = nil
@base = "http://loris-dev.dlts.org/loris/"



profile = {"profile"=>["http://iiif.io/api/image/2/level2.json", {"supports"=>["canonicalLinkHeader", "profileLinkHeader", "mirroring", "rotationArbitrary", "sizeAboveFull", "regionSquare"], "qualities"=>["default", "bitonal", "gray", "color"], "formats"=>["jpg", "png", "gif", "webp"]}]}
tiles = [ {"width" => 1890, "scaleFactors" => [1,2,4,8,16,31]  }]


# first go through the img.txt and build the individual files.txt
IO.read("imgs.txt").each_line do |line|
  line.chomp!
  puts line 
  if line =~ /^\t/
    line.gsub!("\t", "")
    path = URI(line).path
    col = path.split("/")[-2]
    file = path.split("/").last.gsub("s.jpg", "d.jp2") 
    url = "#{@base}/#{col}%2F#{file}" 
    File.open("data/#{collection}/files.txt", "a") { |f| f << url + "\n" } 
  else
    collection = line.split("/").last
    
    FileUtils.mkdir("data/#{collection}") unless File.exists?("data/#{collection}")
    File.open("data/#{collection}/files.txt", "w") 
  end
end


# now go through all the files and build out the manifests
Dir.glob("data/**/files.txt").each do |file|
  puts file 
  files = [] 
  IO.read(file).each_line do |line|
    line.chomp!
    line.gsub!("loris//", "loris/")
    params = {service_id: line}
    img = JSON.parse IIIF::Presentation::ImageResource.create_image_api_image_resource(params).to_json
    img.merge!(profile)
    img["@context"] =  "http://iiif.io/api/image/2/context.json"
    img["protocol"] = "http://iiif.io/api/image"
    img["tiles"]= tiles 
    img["@id"] = line 
    files <<  img  
  end

  File.open("#{ File.dirname(file) }/files.json", 'w') { |f| f << JSON.pretty_generate(files) }

end