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class FaxDocument < ActiveRecord::Base
# attr_accessible :inbound, :transmission_time, :sent_at, :document_total_pages, :document_transferred_pages, :ecm_requested, :ecm_used, :image_resolution, :image_size, :local_station_id, :result_code, :result_text, :remote_station_id, :success, :transfer_rate, :t38_gateway_format, :t38_peer, :document
mount_uploader :document, DocumentUploader
mount_uploader :tiff, TiffUploader
validates_presence_of :document
validates_numericality_of :retry_counter, :only_integer => true, :greater_than_or_equal_to => 0
belongs_to :fax_account
belongs_to :fax_resolution
validates_presence_of :fax_resolution_id
validates_presence_of :fax_resolution
has_one :destination_phone_number, :class_name => 'PhoneNumber', :as => :phone_numberable, :dependent => :destroy
accepts_nested_attributes_for :destination_phone_number
has_many :fax_thumbnails, :order => :position, :dependent => :destroy
after_create :convert_pdf_to_tiff
after_create :render_thumbnails
# Scopes
scope :inbound, where(:state => 'inbound')
scope :outbound, where(:state => ['queued_for_sending','sending','successful','unsuccessful'])
# State Machine stuff
state_machine :initial => :new do
event :queue_for_sending do
transition [:new] => :queued_for_sending
end
event :send_now do
transition [:queued_for_sending] => :sending
end
event :cancel do
transition [:sending, :queued_for_sending] => :unsuccessful
end
event :successful_sent do
transition [:sending, :queued_for_sending] => :successful
end
event :mark_as_inbound do
transition [:new] => :inbound
end
end
def to_s
"#{self.remote_station_id}-#{self.created_at}-#{self.id}".gsub(/[^a-zA-Z0-9]/,'')
end
def render_thumbnails
self.delay.create_thumbnails_and_save_them
end
def create_thumbnails_and_save_them
tmp_dir = "/var/spool/gemeinschaft/fax_convertions/#{self.id}"
FileUtils.mkdir_p tmp_dir
system("cd #{tmp_dir} && convert #{self.document.path} -colorspace Gray PNG:'fax_page.png'")
Dir.glob("#{tmp_dir}/fax_page*.png").each do |thumbnail|
fax_thumbnail = self.fax_thumbnails.build
fax_thumbnail.thumbnail = File.open(thumbnail)
fax_thumbnail.save
end
FileUtils.rm_rf tmp_dir
end
def tiff_to_pdf()
tiff_file = self.tiff.to_s.gsub(self.tiff.store_path, '')
if !File.exists?(tiff_file)
return nil
end
working_path, file_name = File.split(tiff_file)
pdf_file = "#{working_path}/#{File.basename(tiff_file, '.tiff')}.pdf"
system "tiff2pdf \\
-o \"#{pdf_file}\" \\
-p letter \\
-a \"#{self.remote_station_id}\" \\
-c \"AMOOMA Gemeinschaft version #{GsParameter.get('GEMEINSCHAFT_VERSION')}\" \\
-t \"#{self.remote_station_id}\" \"#{tiff_file}\""
if !File.exists?(pdf_file)
return nil
end
return pdf_file, tiff_file
end
private
def convert_pdf_to_tiff
page_size_a4 = '595 842'
page_size_command = "<< /Policies << /PageSize 3 >> /InputAttributes currentpagedevice /InputAttributes get dup { pop 1 index exch undef } forall dup 0 << /PageSize [ #{page_size_a4} ] >> put >> setpagedevice"
directory = "/var/spool/gemeinschaft/GS-#{GsParameter.get('GEMEINSCHAFT_VERSION')}/faxes/#{self.id}"
FileUtils.mkdir_p directory
tiff_file_name = File.basename(self.document.to_s.downcase, ".pdf") + '.tiff'
system "cd #{directory} && gs -q -r#{self.fax_resolution.resolution_value} -dNOPAUSE -dBATCH -dSAFER -sDEVICE=tiffg3 -sOutputFile=\"#{tiff_file_name}\" -c \"#{page_size_command}\" -- \"#{Rails.root.to_s}/public#{self.document.to_s}\""
self.tiff = File.open("#{directory}/#{tiff_file_name}")
self.save
FileUtils.rm_rf directory
end
end
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