class ReeSwagger::BuildRequestBodySchema

def call(mapper, path_params = [])
  if mapper.type
    return get_caster_definition(mapper.type, method(:call).to_proc)
  end
  required_fields = []
  properties = mapper.fields.each_with_object({}) do |(_name, field), acc|
    next if path_params.include?(field.name)
    swagger_field = {}
    required_fields << field.name.to_s if !field.optional
    field_mapper = field.type
    swagger_type = call(field_mapper)
    swagger_field.merge!(swagger_type) if swagger_type
    description = field.doc
    swagger_field[:description] = description if description
    swagger_field[:nullable] = true if field.null
    acc[field.name] = swagger_field
  end
  return if properties.empty?
  obj = {
    type: 'object',
    properties: properties,
  }
  obj[:required] = required_fields if required_fields.size != 0
  obj
end