Module: Sim800c::Helpers

Included in:
Client, Commands::DeleteMessage, Commands::Device, Commands::ListMessages, Commands::SendMessage, Commands::SignalQuality, Commands::StorageInfo
Defined in:
lib/sim800c/helpers.rb

Instance Method Summary collapse

Instance Method Details

#at_cmd(cmd, wait_time: 0.2) ⇒ Object 



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# File 'lib/sim800c/helpers.rb', line 5

def at_cmd(cmd, wait_time: 0.2)
  @serial.write("#{cmd}\r")
  sleep(wait_time)
end

#parse_cmgl_response(response) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/MethodLength



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# File 'lib/sim800c/helpers.rb', line 24

def parse_cmgl_response(response) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
  messages = []
  lines = response.split("\r\n").reject(&:empty?)

  i = 0
  while i < lines.length
    if lines[i].start_with?('+CMGL:')
      header = lines[i]
      message_lines = []

      # Collect message body lines until next +CMGL or end
      i += 1
      while i < lines.length && !lines[i].start_with?('+CMGL:')
        message_lines << lines[i]
        i += 1
      end

      # Parse the header
      if header =~ /^\+CMGL:\s*(\d+),"(.*?)","(.*?)",".*?","(.*?)"$/
        index = ::Regexp.last_match(1).to_i
        status = ::Regexp.last_match(2)
        sender = ::Regexp.last_match(3)
        datetime = ::Regexp.last_match(4)

        date, time = datetime.split(',', 2)
        message = message_lines.join("\n").strip

        messages << {
          index: index,
          status: status,
          sender: sender,
          date: date,
          time: time,
          message: message,
          unread: (status == 'REC UNREAD')
        }
      end
    else
      i += 1
    end
  end

  messages
end

#read_response(wait_time: 0.2, bytes: 1024) ⇒ Object 



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# File 'lib/sim800c/helpers.rb', line 10

def read_response(wait_time: 0.2, bytes: 1024)
  response = String.new

  loop do
    chunk = @serial.read(bytes)
    response << chunk
    break if chunk.include?("\r\nOK\r\n") || chunk.include?("\r\nERROR\r\n")

    sleep(wait_time)
  end

  response
end

#return_or_raise_error!(response) ⇒ Object 



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# File 'lib/sim800c/helpers.rb', line 69

def return_or_raise_error!(response)
  return true if response.include?("\r\nOK\r\n")

  if response.include?("\r\nERROR: 302")
    raise OperationNotAllowed, 'Operation not allowed'
  elsif response.include?("\r\nERROR: 512")
    raise SimNotFound, 'SIM failure or not inserted'
  elsif response.include?("\r\nERROR: 321")
    raise InvalidIndex, 'Index not found'
  else
    raise Error, response
  end
end