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# frozen_string_literal: true
module HTTP
# MIME type encode/decode adapters
module MimeType
class << self
# Associate MIME type with adapter
#
# @example
#
# module JsonAdapter
# class << self
# def encode(obj)
# # encode logic here
# end
#
# def decode(str)
# # decode logic here
# end
# end
# end
#
# HTTP::MimeType.register_adapter 'application/json', MyJsonAdapter
#
# @param [#to_s] type
# @param [#encode, #decode] adapter
# @return [void]
def register_adapter(type, adapter)
adapters[type.to_s] = adapter
end
# Returns adapter associated with MIME type
#
# @param [#to_s] type
# @raise [Error] if no adapter found
# @return [Class]
def [](type)
adapters[normalize type] || raise(Error, "Unknown MIME type: #{type}")
end
# Register a shortcut for MIME type
#
# @example
#
# HTTP::MimeType.register_alias 'application/json', :json
#
# @param [#to_s] type
# @param [#to_sym] shortcut
# @return [void]
def register_alias(type, shortcut)
aliases[shortcut.to_sym] = type.to_s
end
# Resolves type by shortcut if possible
#
# @param [#to_s] type
# @return [String]
def normalize(type)
aliases.fetch type, type.to_s
end
private
# :nodoc:
def adapters
@adapters ||= {}
end
# :nodoc:
def aliases
@aliases ||= {}
end
end
end
end
# built-in mime types
require "http/mime_type/json"
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