# frozen_string_literal: true

module MinatoErrorHandler
  module ErrorHandler
    extend ActiveSupport::Concern

    included do |base|
      rescue_from StandardError, with: :handle

      base.extend ClassMethods
    end

    private

    def handle(exception)
      error = parse_error(exception)
      report_error error
      render_error error
    end

    def parse_error(error)
      if error.is_a?(MinatoErrorHandler::Errors::MinatoError)
        error.http_request = request if error.http_request.nil?
        return error
      end

      error_class = self.class.default_error_class || MinatoErrorHandler::Errors::UnknowError

      minato_error = error_class.new
      minato_error.caused_by = error.full_message
      minato_error.backtrace = error.backtrace
      minato_error.http_request = request
      minato_error
    end

    def report_error(error)
      Rails.logger.error(error.as_json)
    end

    def render_error(error)
      render json: { errors: [error.json_response] }, status: error.status_code
    end

    module ClassMethods
      def default_error(klass)
        # rubocop:disable Style/ClassVars
        class_variable_set(:@@default_error_class, klass.to_s.camelize.constantize)
        # rubocop:enable Style/ClassVars
      end

      def default_error_class
        return nil unless class_variable_defined? :@@default_error_class

        class_variable_get(:@@default_error_class)
      end
    end
  end
end