class Github::ParamsHash

def accept
  if has_key?('accept')
    self.delete('accept')
  elsif has_key?('media')
    media
  else
    nil
  end
end

def data
  if has_key?('data') && !self['data'].nil?
    return self.delete('data')
  else
    return self.to_hash
  end
end

def initialize(hash)
  super(normalize!(Hash[hash]))
end

def media
  parse(self.delete('media'))
end

def merge_default(defaults)
  if defaults && !defaults.empty?
    defaults.each do |key, value|
      self[key] = value unless self.has_key?(key)
    end
  end
  self
end

def options
  hash = has_key?('options') ? self.delete('options') : {}
  if value = accept
    hash[:headers] = {} unless hash.has_key?(:headers)
    hash[:headers]['Accept'] = value
  end
  hash[:raw] = has_key?('raw') ? self.delete('raw') : false
  hash
end

def strict_encode64(key)
  value = self[key]
  encoded = if Base64.respond_to?(:strict_encode64)
    Base64.strict_encode64(value)
  else
    [value].pack("m0")
  end
  self[key] = encoded.delete("\n\r")
end