# encoding: utf-8

require 'delegate'

require 'base64'

module Github

# Class responsible for holding request parameters

class ParamsHash < DelegateClass(Hash)

include Normalizer

include MimeType

def initialize(hash)

super(normalize!(Hash[hash]))

end

# Create empty hash

#

def self.empty

new({})

end

# Extract and parse media type param

#

# [.version].param[+json]

#

def media

parse(delete('media'))

end

# Return accept header if present

#

def accept

if has_key?('accept')

delete('accept')

elsif has_key?('media')

media

else

nil

end

end

# Extract request data from parameters

#

def data

if has_key?('data') && !self['data'].nil?

return delete('data')

else

return to_hash

end

end

def encoder

if has_key?('encoder') && self['encoder']

return delete('encoder')

else

return {}

end

end

# Any client configuration options

#

def options

opts = has_key?('options') ? delete('options') : {}

headers = opts.fetch(:headers) { {} }

if value = accept

headers[:accept] = value

end

if value = delete('content_type')

headers[:content_type] = value

end

opts[:raw] = has_key?('raw') ? delete('raw') : false

opts[:headers] = headers unless headers.empty?

opts

end

# Update hash with default parameters for non existing keys

#

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

# Base64 encode string removing newline characters

#

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

end # ParamsHash

end # Github