diagnostic.rb

module Diagnostic
	class KeyInject
		FILE = './shared/injected_keys.json'

		def self.table_exist?
			File.exists?(FILE)
		end

		def self.table
			self.setup unless @table
			@table
		end

		def self.local
			self.setup unless @local
			@local
		end

		def self.metadata
			if self.local
				#
			else
				[]
			end
		end

		def self.setup
			@local = self.system_check
      if self.table_exists?
        @table = JSON.parse(File.read(FILE))
      else
        @table = []
      end
		end

		def self.system_check
			(0..100).to_a.inject({}) do |hash, slot|
				ksn = Device::Pinpad.key_ksn(slot)
				if (ksn[:pin][0] == 0 || ksn[:data][0] == 0)
					hash[slot] = (ksn[:pin][1] || ksn[:data][1])
				end
				hash
			end
		end
	end
end

#... Handshake class
def injected_keys
  Diagnostic::KeyInject.local.inject([]) do |array, key|
    acquirer = Diagnostic::KeyInject.table.find {|row| row["ksi"] == hash[key[1]][0..9]}
    hash[i.to_s.rjust(2,'0')] = data[0].to_s + " " + data[1].to_s

    array << {key[0] => "#{acquirer["acquirer_name"]} #{acquirer["type"]}"}
  end.to_
end
#...