fga-eps-mds/2019.2-Vsign

class FaceMatchJob < ApplicationJob
  queue_as :default
  
  def perform(contract_id) 
    
    @client = Aws::Rekognition::Client.new({
      region: Rails.application.credentials.dig(:aws, :region),
      credentials: Aws::Credentials.new(
        Rails.application.credentials.dig(:aws, :access_key_id),
        Rails.application.credentials.dig(:aws, :secret_access_key))
    })
    @contract = Contract.find(contract_id)
    @user = @contract.user
    document = @user.user.user_document
    @contract.image.each |image| face_matching(image.filename, document.filename)
    perform_next_job(similarity)
    
  end
  
  private 
  
  def face_matching(video_image, document_image)
   
    attrs = {
      source_image: {
        s3_object: {
          bucket: Rails.application.credentials[Rails.env.to_sym][:aws][:bucket],
          name: document_image
        },
      },
      target_image: {
        s3_object: {
          bucket: Rails.application.credentials[Rails.env.to_sym][:aws][:bucket],
          name: video_image
        },
      },
      similarity_threshold: 80
    }

    similarity = 0

    response = @client.compare_faces attrs
    response.face_matches.each do |face_match|
      similarity = similarity + face_match.similarity
    end
    
    #sola de similarity das tres vezes que a funcao eh chamda
    return similarity

  end


  def perform_next_job(similarity)
    
    if similarity >= 240
      ExtractAudioTextJob.perform_later contract.id
    else
      @contract.status = "error, face matching fail"
    end

  end

end