require 'pact_broker/api/resources/base_resource'
require 'pact_broker/services'
require 'pact_broker/api/decorators/webhook_execution_result_decorator'
require 'pact_broker/api/resources/webhook_resource_methods'
require 'pact_broker/constants'
require 'pact_broker/webhooks/execution_configuration'
require 'pact_broker/api/resources/webhook_execution_methods'

module PactBroker
  module Api
    module Resources
      class WebhookExecution < BaseResource
        include WebhookResourceMethods
        include WebhookExecutionMethods

        def content_types_accepted
          [["application/json"]]
        end

        def content_types_provided
          [["application/hal+json"]]
        end

        def allowed_methods
          ["POST", "OPTIONS"]
        end

        def process_post
          webhook_execution_result = webhook_service.test_execution(webhook, webhook_execution_configuration)
          response.headers['Content-Type'] = 'application/hal+json;charset=utf-8'
          response.body = post_response_body(webhook_execution_result)
          true
        end

        def resource_exists?
          webhook
        end

        def malformed_request?
          if uuid
            false
          else
            webhook_validation_errors?(webhook)
          end
        end

        private

        def post_response_body webhook_execution_result
          Decorators::WebhookExecutionResultDecorator.new(webhook_execution_result).to_json(user_options: user_options)
        end

        def webhook
          @webhook ||= begin
            if uuid
              webhook_service.find_by_uuid uuid
            else
              build_unsaved_webhook
            end
          end
        end

        def uuid
          identifier_from_path[:uuid]
        end

        def user_options
          decorator_context(
            webhook: webhook,
            show_response: PactBroker.configuration.show_webhook_response?
          )
        end

        def build_unsaved_webhook
          Decorators::WebhookDecorator.new(PactBroker::Domain::Webhook.new).from_json(request_body)
        end
      end
    end
  end
end