Module: Exceptions::ResponseMappings

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# File 'backend/app/lib/exceptions.rb', line 110

def self.included(base)
  base.instance_eval do

    error ImportException do
      json_response({:error => request.env['sinatra.error'].to_hash}, 400)
    end

    error RepositoryNotEmpty do
      json_response({:error => "Repository not empty"}, 409)
    end

    error NotFoundException do
      json_response({:error => request.env['sinatra.error']}, 404)
    end

    error BadParamsException do
      json_response({:error => request.env['sinatra.error'].params}, 400)
    end

    error UserNotFoundException do
      json_response({:error => {"member_usernames" => [request.env['sinatra.error']]}}, 400)
    end

    error BatchDeleteFailed do
      json_response({:error => {"failures" => request.env['sinatra.error'].errors}}, 403)
    end

    error TransferConstraintError do
      json_response({:error => request.env['sinatra.error'].conflicts}, 409)
    end

    error JSONModel::ValidationException do
      json_response({
                      :error => request.env['sinatra.error'].errors,
                      :warning => request.env['sinatra.error'].warnings,
                      :invalid_object => request.env['sinatra.error'].invalid_object.inspect
                    }, 400)
    end

    error ConflictException do
      json_response({:error => request.env['sinatra.error'].conflicts}, 409)
    end

    error AccessDeniedException do
      json_response({:error => "Access denied"}, 403)
    end

    error InvalidUsernameException do
      json_response({:error => "Invalid username"}, 400)
    end

    error Sequel::ValidationFailed do
      json_response({:error => request.env['sinatra.error'].errors}, 400)
    end

    error ReferenceError do
      json_response({:error => request.env['sinatra.error']}, 400)
    end

    error MergeRequestFailed do
      json_response({:error => request.env['sinatra.error']}, 400)
    end

    error Sequel::DatabaseError do
      Log.exception(request.env['sinatra.error'])
      json_response({:error => {:db_error => ["Database integrity constraint conflict: #{request.env['sinatra.error']}"]}}, 400)
    end

    error Sequel::Plugins::OptimisticLocking::Error do
      json_response({:error => "The record you tried to update has been modified since you fetched it."}, 409)
    end

    error JSON::ParserError do
      json_response({:error => "Had some trouble parsing your request: #{request.env['sinatra.error']}"}, 400)
    end


    # Overriding Sinatra's default behaviour here
    define_method(:handle_exception!) do |ex|
      @env['sinatra.error'] = ex
      status ex.respond_to?(:code) ? Integer(ex.code) : 500

      if not_found?
        headers['X-Cascade'] = 'pass'
        body '<h1>Not Found</h1>'
        return
      end

      res = error_block!(ex.class, ex) || error_block!(status, ex)

      res or raise ex
    end

  end
end