Module: Zklib::TimeManagement

Included in:
Zklib
Defined in:
lib/zklib/time_management.rb

Instance Method Summary collapse

Instance Method Details

#get_time ⇒ Object

Get current time of attendance machine



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# File 'lib/zklib/time_management.rb', line 4

def get_time
  execute_cmd(
    command:        CMD_GET_TIME,
    command_string: ''
  ) do |opts|
    return puts "ERROR: #{options[:error]}" unless opts[:valid]

    data = opts[:data]
    if data.length > 8
      decode_time(seconds: BinData::Uint32le.read(data[8..-1]).snapshot)
    else
      puts 'ERROR: Invalid time response'
    end
  end
end

#set_time(time = Time.now) ⇒ Object

Set current time for attendance machine



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# File 'lib/zklib/time_management.rb', line 21

def set_time(time = Time.now)
  seconds        = encode_time(time: time)
  command_buffer = StringIO.new
  binary_writer  = BinData::Uint32le.new

  # Write command string
  binary_writer.value = seconds
  command_buffer.pos  = 0
  binary_writer.write(command_buffer)
  command_string = command_buffer.string

  execute_cmd(
    command:        CMD_SET_TIME,
    command_string: command_string
  ) do |opts|
    return puts "ERROR: #{options[:error]}" unless opts[:valid]

    data = opts[:data]
    if data.length > 7
      data.split("\u0000").pop
    else
      puts 'ERROR: Invalid time response'
    end
  end
end