#-- encoding: UTF-8

#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2018 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) 2006-2017 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 docs/COPYRIGHT.rdoc for more details.
#++

require 'roar/decorator'
require 'roar/json/hal'

module API
  module V3
    module Projects
      class ProjectRepresenter < ::API::Decorators::Single
        include API::Decorators::LinkedResource
        include API::Decorators::DateProperty
        include ::API::Caching::CachedRepresenter
        include API::Decorators::FormattableProperty
        extend ::API::V3::Utilities::CustomFieldInjector::RepresenterClass

        cached_representer key_parts: %i(status),
                           disabled: false

        self_link

        link :createWorkPackage,
             cache_if: -> { current_user_allowed_to(:add_work_packages, context: represented) } do
          {
            href: api_v3_paths.create_project_work_package_form(represented.id),
            method: :post
          }
        end

        link :createWorkPackageImmediately,
             cache_if: -> { current_user_allowed_to(:add_work_packages, context: represented) } do
          {
            href: api_v3_paths.work_packages_by_project(represented.id),
            method: :post
          }
        end

        link :workPackages,
             cache_if: -> {
               current_user_allowed_to(:view_work_packages, context: represented)
             } do
          {href: api_v3_paths.work_packages_by_project(represented.id)}
        end

        link :categories do
          {href: api_v3_paths.categories_by_project(represented.id)}
        end

        link :versions,
             cache_if: -> {
               current_user_allowed_to(:view_work_packages, context: represented) ||
                 current_user_allowed_to(:manage_versions, context: represented)
             } do
          {href: api_v3_paths.versions_by_project(represented.id)}
        end

        link :memberships,
             cache_if: -> {
               current_user_allowed_to(:view_members, context: represented)
             } do
          {
            href: api_v3_paths.path_for(:memberships, filters: [{project: {operator: "=", values: [represented.id.to_s]}}]),
          }
        end

        link :types,
             cache_if: -> {
               current_user_allowed_to(:view_work_packages, context: represented) ||
                 current_user_allowed_to(:manage_types, context: represented)
             } do
          {href: api_v3_paths.types_by_project(represented.id)}
        end

        link :update,
             cache_if: -> {
               current_user_allowed_to(:edit_project, context: represented)
             } do
          {
            href: api_v3_paths.project_form(represented.id),
            method: :post
          }
        end

        link :updateImmediately,
             cache_if: -> {
               current_user_allowed_to(:edit_project, context: represented)
             } do
          {
            href: api_v3_paths.project(represented.id),
            method: :patch
          }
        end

        link :delete,
             cache_if: -> { current_user.admin? } do
          {
            href: api_v3_paths.project(represented.id),
            method: :delete
          }
        end

        link :schema do
          {
            href: api_v3_paths.projects_schema
          }
        end

        associated_resource :parent,
                            v3_path: :project,
                            representer: ::API::V3::Projects::ProjectRepresenter,
                            uncacheable_link: true,
                            link: ->(*) {
                              if represented.parent&.visible?
                                {
                                  href: api_v3_paths.project(represented.parent.id),
                                  title: represented.parent.name
                                }
                              else
                                {
                                  href: nil,
                                  title: nil
                                }
                              end
                            }

        property :id
        property :identifier
        property :name
        property :active
        property :public

        formattable_property :description

        date_time_property :created_at

        date_time_property :updated_at

        property :status,
                 render_nil: true,
                 getter: ->(*) {
                   next unless status&.code

                   status.code.to_s.tr('_', ' ')
                 },
                 setter: ->(fragment:, **) {
                   self.status ||= {}
                   status[:code] =
                     if fragment.nil?
                       nil
                     else
                       fragment.strip.tr(' ', '_').underscore.to_sym
                     end
                 }

        property :status_explanation,
                 writable: -> do
                   represented.writable?(:status)
                 end,
                 getter: ->(*) {
                   ::API::Decorators::Formattable.new(status&.explanation,
                                                      object: self,
                                                      plain: false)
                 },
                 setter: ->(fragment:, **) {
                   self.status ||= {}
                   status[:explanation] = fragment["raw"]
                 }

        def _type
          'Project'
        end

        self.checked_permissions = [:add_work_packages]
      end
    end
  end
end