zip

gistfile1.txt

def zip(hash)
    #this method takes a hash in the format {FIRST_PHOTO_ID => {:dpi=>INT,
    #                                                           :watermark=>BOOL},
    #                                       SECOND_PHOTO_ID => {:dpi=>INT,
    #                                                           :watermark=>BOOL} }

    require 'zip/zip'
    #new_hash_of_photos = {}

    hash.each do |id, specs|
      p = Photo.find_by_id(id)
      specs[:path] = p.image.url
      #new_hash_of_photos[p.image.url] = specs #.create_whitebar.filename
    end

    puts "*****#{hash}"


    temp_path = Dir.mktmpdir + "/"
    %x[mv #{temp_path} #{Rails.root.join('public/uploads/')}]
    temp_path =  Rails.root.join('public/uploads/') + temp_path.split('/').last
    zip_path = "#{temp_path}/Order_#{self.id.to_s}_BFA.zip"

    Zip::ZipFile.open(zip_path, Zip::ZipFile::CREATE) do |zipfile|
      hash.each do |id, specs|
        photo_filename = specs[:path].split('/').last   #/uploads/BFA_1234_123456.jpg -> BFA_1234_123456.jpg
        current_path_to_file = "#{Rails.root.join('public/uploads/')}#{photo_filename}"
        new_path_to_file = "#{Rails.root.join('public/uploads/')}purchased2_#{photo_filename}"
        #%x[gm convert -resize #{specs[:dpi]}x#{specs[:dpi]} #{current_path_to_file} #{new_path_to_file}]
        ##puts "%x[convert -units PixelsPerInch #{current_path_to_file} -density #{specs[:dpi]} #{new_path_to_file}]"
        %x[convert -units PixelsPerInch #{current_path_to_file} -density #{specs[:dpi]} #{new_path_to_file}]

        puts ">>>>>>>>#{current_path_to_file}"
        puts ">>>>>>>>#{new_path_to_file}"
        newer_path_to_file = apply_watermark_to_img(new_path_to_file, id, specs[:watermark])
        zipfile.add(photo_filename, newer_path_to_file) {true}  #.add(zip_entry_name, path_to_file)
      end
    end

    ##Zipfile created. Move to appropriate folder.
    %x[mv #{zip_path} #{Rails.root.join('public/uploads/zip/')}]
    %x[rm #{temp_path}]


    return "#{Rails.root.join('public/uploads/zip/')}Order_#{self.id.to_s}_BFA.zip" #do sendfile on this path

  end



def apply_watermark_to_img(photo_path, id, watermark)

    puts ">>>>#{photo_path}"
    photo = Magick::Image.read(photo_path).first

    if watermark == true
        watermark_img = "#{Rails.public_path[0..-7]}"+"app/assets/images/watermark13.png"
        ptsize = 32
        bottomOffset = 70
        anno1 = -5
        anno2 =  30

        watermark_img.annotate(txt, 0,0,5,anno1, "bfa.co/"){
          txt.gravity = Magick::WestGravity
          txt.pointsize = ptsize
          txt.fill = "white"
          txt.font = bfa_font
        }
        watermark_img.annotate(txt, 0,0,5,anno2, "#{id}"){
          txt.gravity = Magick::WestGravity
          txt.pointsize = ptsize
          txt.fill = "white"
          txt.font = bfa_font
        }
        result = photo.composite(watermark_img, Magick::SouthEastGravity, 0, bottomOffset, Magick::OverCompositeOp)
      else
        result = photo
      end

      new_path = "#{Rails.root.join('public/uploads/')}watermarked_#{photo_path.split('/').last}"
      result.write("#{new_path}")
      puts "newpath:#{new_path}"
      return new_path


  end
end