#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2021 the OpenProject GmbH
#
# 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 docs/COPYRIGHT.rdoc for more details.
#++

require 'spec_helper'

describe ::API::V3::Groups::GroupRepresenter, 'rendering' do
  include ::API::V3::Utilities::PathHelper

  subject(:generated) { representer.to_json }

  let(:group) do
    FactoryBot.build_stubbed(:group).tap do |g|
      allow(g)
        .to receive(:users)
        .and_return(members)
    end
  end
  let(:current_user_admin) { false }
  let(:current_user) { FactoryBot.build_stubbed(:user, admin: current_user_admin) }
  let(:representer) { described_class.new(group, current_user: current_user, embed_links: embed_links) }
  let(:members) { 2.times.map { FactoryBot.build_stubbed(:user) } }
  let(:permissions) { [:manage_members] }
  let(:embed_links) { true }

  before do
    allow(current_user)
      .to receive(:allowed_to_globally?) do |permission|
      permissions.include?(permission)
    end
  end

  describe '_links' do
    describe 'self' do
      it_behaves_like 'has a titled link' do
        let(:link) { 'self' }
        let(:href) { api_v3_paths.group group.id }
        let(:title) { group.name }
      end
    end

    describe 'members' do
      let(:link) { 'members' }

      context 'with the necessary permissions' do
        it_behaves_like 'has a link collection' do
          let(:hrefs) do
            members.map do |member|
              {
                href: api_v3_paths.user(member.id),
                title: member.name
              }
            end
          end
        end
      end

      context 'without the necessary permissions' do
        let(:permissions) { [] }

        it_behaves_like 'has no link'
      end
    end

    describe 'updateImmediately' do
      let(:link) { 'updateImmediately' }

      context 'with the necessary permissions' do
        let(:current_user_admin) { true }

        it_behaves_like 'has an untitled link' do
          let(:href) { api_v3_paths.group group.id }
        end
      end

      context 'without the necessary permissions' do
        let(:current_user_admin) { false }

        it_behaves_like 'has no link'
      end
    end

    describe 'delete' do
      let(:link) { 'delete' }

      context 'with the necessary permissions' do
        let(:current_user_admin) { true }

        it_behaves_like 'has an untitled link' do
          let(:href) { api_v3_paths.group group.id }
        end
      end

      context 'without the necessary permissions' do
        let(:current_user_admin) { false }

        it_behaves_like 'has no link'
      end
    end
  end

  describe 'properties' do
    it_behaves_like 'property', :_type do
      let(:value) { 'Group' }
    end

    it_behaves_like 'property', :id do
      let(:value) { group.id }
    end

    it_behaves_like 'property', :name do
      let(:value) { group.name }
    end

    describe 'createdAt' do
      context 'without admin' do
        it 'hides the createdAt property' do
          is_expected.not_to have_json_path('createdAt')
        end
      end

      context 'with an admin' do
        let(:current_user) { FactoryBot.build_stubbed(:admin) }

        it_behaves_like 'has UTC ISO 8601 date and time' do
          let(:date) { group.created_at }
          let(:json_path) { 'createdAt' }
        end
      end
    end

    describe 'updatedAt' do
      context 'without admin' do
        it 'hides the updatedAt property' do
          is_expected.not_to have_json_path('updatedAt')
        end
      end

      context 'with an admin' do
        let(:current_user) { FactoryBot.build_stubbed(:admin) }

        it_behaves_like 'has UTC ISO 8601 date and time' do
          let(:date) { group.updated_at }
          let(:json_path) { 'updatedAt' }
        end
      end
    end
  end

  describe '_embedded' do
    describe 'members' do
      let(:embedded_path) { '_embedded/members' }

      context 'with the necessary permissions' do
        it 'has an array of users embedded' do
          members.each_with_index do |user, index|
            is_expected
              .to be_json_eql('User'.to_json)
              .at_path("#{embedded_path}/#{index}/_type")

            is_expected
              .to be_json_eql(user.name.to_json)
              .at_path("#{embedded_path}/#{index}/name")
          end
        end
      end

      context 'without the necessary permissions' do
        let(:permissions) { [] }

        it 'has no members embedded' do
          expect(subject)
            .not_to have_json_path embedded_path
        end
      end
    end
  end

  describe 'caching' do
    let(:embed_links) { false }

    it 'is based on the representer\'s cache_key' do
      expect(OpenProject::Cache)
        .to receive(:fetch)
        .with(representer.json_cache_key)
        .and_call_original

      representer.to_json
    end

    describe '#json_cache_key' do
      let!(:former_cache_key) { representer.json_cache_key }

      it 'includes the name of the representer class' do
        expect(representer.json_cache_key)
          .to include('API', 'V3', 'Groups', 'GroupRepresenter')
      end

      it 'changes when the locale changes' do
        I18n.with_locale(:fr) do
          expect(representer.json_cache_key)
            .not_to eql former_cache_key
        end
      end

      it 'changes when the group is updated' do
        group.updated_at = Time.now + 20.seconds

        expect(representer.json_cache_key)
          .not_to eql former_cache_key
      end
    end
  end
end