class Aws::Partitions::Partition

def build(partition)
  Partition.new(
    name: partition['partition'],
    regions: build_regions(partition),
    services: build_services(partition),
  )
end

def build_regions(partition)
  partition['regions'].inject({}) do |regions, (region_name, region)|
    unless region_name == "#{partition['partition']}-global"
      regions[region_name] = Region.build(region_name, region, partition)
    end
    regions
  end
end

def build_services(partition)
  Partitions.service_ids.inject({}) do |services, (svc_name, svc_id)|
    if partition['services'].key?(svc_id)
      svc_data = partition['services'][svc_id]
      services[svc_name] = Service.build(svc_name, svc_data, partition)
    else
      services[svc_name] = Service.build(svc_name, {'endpoints' => {}}, partition)
    end
    services
  end
end

def initialize(options = {})
  @name = options[:name]
  @regions = options[:regions]
  @services = options[:services]
end

def region(region_name)
  if @regions.key?(region_name)
    @regions[region_name]
  else
    msg = "invalid region name #{region_name.inspect}; valid region "
    msg << "names include %s" % [@regions.keys.join(', ')]
    raise ArgumentError, msg
  end
end

def regions
  @regions.values
end

def service(service_name)
  if @services.key?(service_name)
    @services[service_name]
  else
    msg = "invalid service name #{service_name.inspect}; valid service "
    msg << "names include %s" % [@services.keys.join(', ')]
    raise ArgumentError, msg
  end
end

def services
  @services.values
end