polar_nightlyrecharge2txt

#!/usr/bin/env ruby
# Parses RAW Polar daily nighlty recharge data file and convert to TXT

require "#{File.dirname(__FILE__)}/lib/polar_data_parser"

def usage
  puts "Usage:"
  puts "  #{__FILE__} <directory> [<txt file>]"
end

dir = ARGV[0]
unless dir
  usage
  exit -2
end

output_file = ARGV[1] || File.join(dir, 'output.txt')

def output_txt(parsed)
  nr = parsed[:nr]
  buffer = ""

  buffer << "Date                                : #{pb_date_to_string nr.date}\n"
  buffer << "Nightly recharge status             : #{nr.nightly_recharge_status}\n"
  buffer << "ANS charge                          : #{nr.ans_charge.round(1)} [-10...+10]\n"
  buffer << "ANS charge status                   : #{nr.ans_charge_status}\n"
  buffer << "Heart rate AVG                      : #{(60000.0 / nr.beat_to_beat_avg).round(1)} bpm\n"
  buffer << "Heart rate REF                      : #{(nr.beat_to_beat_ref > 0 ? 60000.0 / nr.beat_to_beat_ref : 0).round(1)} bpm\n"
  buffer << "RR AVG                              : #{nr.beat_to_beat_avg} ms\n"
  buffer << "RR REF                              : #{nr.beat_to_beat_ref} ms\n"
  buffer << "HRV AVG                             : #{nr.heart_rate_variability_avg} ms\n"
  buffer << "HRV REF                             : #{nr.heart_rate_variability_ref} ms\n"
  buffer << "Breathing rate AVG                  : #{(60000.0 / nr.breathing_rate_avg).round(1)} breaths/min\n"
  buffer << "Breathing rate REF                  : #{(60000.0 / nr.breathing_rate_ref).round(1)} breaths/min\n"
  buffer << "UNKNOWN0                            : #{nr.unknown0}\n"
  buffer << "UNKNOWN1                            : #{nr.unknown1}\n"
  buffer << "UNKNOWN2                            : #{nr.unknown2}\n"
  buffer << "UNKNOWN3                            : #{nr.unknown3}\n"
  buffer << "UNKNOWNSTR1                         : #{nr.unknownstr1}\n"
  buffer << "UNKNOWNSTR2                         : #{nr.unknownstr2}\n"
  buffer << "UNKNOWNSTR3                         : #{nr.unknownstr3}\n"

  buffer
end

puts "Converting Polar nighlty recharge in '#{dir}' to TXT format as '#{output_file}'..."
parsed = PolarDataParser.parse_nighlty_recharge(dir)
if parsed.key?(:nr)
  File.open(output_file, 'w') do |f|
    f << output_txt(parsed)
  end
  puts "Done"
else
  puts "Error: couldn't find daily nighlty recharge report"
end