#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

module API
  module Errors
    class UnwritableProperty < ErrorBase
      def initialize(invalid_attributes)
        attributes = Array(invalid_attributes)

        fail ArgumentError, 'UnwritableProperty error must contain at least one invalid attribute!' if attributes.empty?

        if attributes.length == 1
          message = if attributes.length == 1
                      begin
                        I18n.t("api_v3.errors.validation.#{attributes.first}", raise: true)
                      rescue I18n::MissingTranslationData
                        I18n.t('api_v3.errors.writing_read_only_attributes')
                      end
                    else
                      I18n.t('api_v3.errors.multiple_errors')
                    end
        else
          message = I18n.t('api_v3.errors.multiple_errors')
        end

        super 422, message

        evaluate_attributes(attributes, invalid_attributes)
      end

      def evaluate_attributes(attributes, invalid_attributes)
        if attributes.length > 1
          invalid_attributes.each do |attribute|
            @errors << UnwritableProperty.new(attribute)
          end
        else
          @details = { attribute: attributes[0].to_s.camelize(:lower) }
        end
      end
    end
  end
end