class Apicraft::Middlewares::RequestValidator

def call(env)
  return @app.call(env) unless validate?
  request = ActionDispatch::Request.new(env)
  content_type = request.content_type
  operation = Apicraft::Openapi::Contract.find_by_operation(
    request.method, request.path_info
  )&.operation(
    request.method, request.path_info
  )
  return @app.call(env) if operation.blank?
  operation.validate_request_body(
    content_type,
    request.params
  )
  @app.call(env)
rescue OpenAPIParser::OpenAPIError => e
  [
    config.request_validation_http_code,
    { 'Content-Type': content_type },
    [
      response_body(e)&.send(convertor(content_type))
    ].compact
  ]
end

def initialize(app)
  @app = app
end

def response_body(ex)
  config.request_validation_response_body.call(ex)
end

def validate?
  config.request_validation_enabled?
end