module BsdWtf

# File lib/bsd_wtf.rb, line 7
def self.wtf(acronyms = [])
  _do_wtf(_get_wtf, acronyms)
end

# File lib/bsd_wtf.rb, line 13
def self._do_wtf(wtf=_get_wtf, acronyms=[])
  wtf_cmd = wtf + ' ' + Array(acronyms).join(' ')

  stdout_str, stderr_str, status = Open3.capture3(wtf_cmd)

  if status.success?
    _process_wtf(stdout_str)
  else
    raise StandardError.new(stderr_str.chomp)
  end
end

# File lib/bsd_wtf.rb, line 25
def self._get_wtf
  results = Whiches.whiches("wtf")

  if results
    results[0]
  else
    raise StandardError.new("unable to find 'wtf' in path")
  end
end

# File lib/bsd_wtf.rb, line 35
def self._process_wtf(raw='')
  result = {
    :success => [],
    :failure => [],
  }

  raw.chomp.split("\n").each do |line|
    acronym, definition = line.split(':', 2)

    /nothing appropriate/ =~ definition

    if Regexp.last_match.nil?
      result[:success].push({:acronym => acronym, :definition => definition.strip})
    else
      result[:failure].push(acronym)
    end
  end

  result
end