require 'finix/version' unless defined? Finix::VERSION
require 'finix/client'
require 'finix/error'

module Finix

  @client = nil
  @config = {:root_url => 'https://localhost/processing'}
  @hypermedia_registry = {}
  @errors_registry = {
      :unknown => Finix::ResourceErrors,
      400 => Finix::BadRequest,
      401 => Finix::Unauthorized,
      402 => Finix::UpstreamProcessorError,
      403 => Finix::Forbidden,
      404 => Finix::NotFound,
      405 => Finix::MethodNotAllowed,
      422 => Finix::UnprocessableEntity,
      500 => Finix::InternalServerError
  }

  class << self

    attr_accessor :client
    attr_accessor :config
    attr_accessor :hypermedia_registry
    attr_accessor :errors_registry

    def configure(options={})
      unless options[:root_url].nil?
        @config = {}
      end

      @config = @config.merge(options)
      @config[:user] = @config[:user].strip unless @config[:user].nil?
      @config[:password] = @config[:password].strip unless @config[:password].nil?

      @client = Finix::Client.new @config
    end

    def split_the_href(href)
      URI.parse(href).path.sub(/\/$/, '').split('/')
    end

    def get_href(cls)
      href = Finix.hypermedia_registry.key(cls)
      href = Finix.hypermedia_registry.key(cls.superclass) if href.nil?
      if href.nil? # support wrapper module
        mod = cls.name.split('::').first
        scls = cls.superclass.superclass.name.split('::').last
        href = Finix.hypermedia_registry.key(self.instance_eval "#{mod}::#{scls}")
      end
      href
    end

    def from_hypermedia_registry(href, attributes={})
      split_uri = split_the_href(href)
      split_uri.reverse!.each do |resource|
        cls = Finix.hypermedia_registry[resource]
        cls = cls.send :hypermedia_subtype, attributes if not cls.nil? and cls.respond_to?(:hypermedia_subtype)
        return cls unless cls.nil?
      end
      Finix::Utils.eval_class self, 'UnknownResource'
    end

    def get(*args, &block)
      self.client.get *args
    end

    def post(*args, &block)
      self.client.post *args
    end

    def put(*args, &block)
      self.client.put *args
    end
  end
end

require 'finix/resources'