module CuteHex

# File lib/cute-hex/core.rb, line 2
def self.hex_print _x, **opts
  slicer = opts[:style] == :data ? (opts[:slicer] || @@config.slicer) : :nibble

  if _x.is_a? Array
    return _x.collect{ |e| stylify(e, slicer, opts) }
  else
    return stylify(_x, slicer, opts)
  end
end

# File lib/cute-hex.rb, line 29
def self.method_missing(method, *opts)
  case method
  when :config
    return @@config
  end
end

# File lib/cute-hex/core.rb, line 15
def self.stylify _x, _slicer, _opts
  return (_opts[:style] == :data ? '' : '[')   \
       + to_hex_string(_x, _slicer, _opts)     \
       + (_opts[:style] == :data ? '' : ']')
end

# File lib/cute-hex/core.rb, line 21
def self.to_hex_string _x, _slicer, _opts
  word_size = _opts[:word_size] || @@config.word_size
  pad_zeros = _opts[:pad_zeros] == nil ? @@config.pad_zeros : _opts[:pad_zeros]

  format = '%'                                                      \
         + (_opts[:style] == :data ? (pad_zeros ? '0' : '') : '0')  \
         + (word_size / 4).to_s                                     \
         + 'X'

  slice_by = case _slicer
             when :byte then 2
             when :nibble then 4
             when :half_word then word_size / 2 / 4
             else word_size / 4
             end

  s = (_x ? sprintf(format, _x) : '?' * (word_size / 4)).split('')
  output = s.each_slice(slice_by).map{ |x| x.join }.join(' ')

  if @@config.debug_mode
    p "Format: #{format}"
    p "Sliced: #{s} (#{_slicer} | #{slice_by})"
    p "Output: #{output}"
  end

  return output
end