#-- 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 'spec_helper'
require 'rack/test'

describe 'API v3 Query resource', type: :request, content_type: :json do
  include Rack::Test::Methods
  include API::V3::Utilities::PathHelper

  let(:project) { FactoryBot.create(:project, identifier: 'test_project', is_public: false) }
  let(:other_project) { FactoryBot.create(:project) }
  let(:current_user) do
    FactoryBot.create(:user, member_in_project: project, member_through_role: role)
  end
  let(:role) { FactoryBot.create(:role, permissions: permissions) }
  let(:permissions) { [:view_work_packages] }
  let(:manage_public_queries_role) do
    FactoryBot.create(:role, permissions: [:manage_public_queries])
  end
  let(:query) { FactoryBot.create(:public_query, project: project) }
  let(:other_query) { FactoryBot.create(:public_query, project: other_project) }
  let(:global_query) { FactoryBot.create(:global_query) }
  let(:work_package) { FactoryBot.create(:work_package, project: project) }

  before do
    allow(User).to receive(:current).and_return current_user
  end

  describe '#get queries/' do
    let(:path) { api_v3_paths.queries }
    let(:prepare) {}

    before do
      prepare

      get path
    end

    context 'user has view_work_packages in a project' do
      it 'should succeed' do
        expect(last_response.status).to eq(200)
      end
    end

    context 'user has manage_public_queries in a project' do
      let(:permissions) { [:manage_public_queries] }
      it 'should succeed' do
        expect(last_response.status).to eq(200)
      end
    end

    context 'user not allowed to see queries' do
      include_context 'with non-member permissions from non_member_permissions'
      let(:current_user) { FactoryBot.create(:user) }
      let(:non_member_permissions) { [:view_work_packages] }

      it 'should succeed' do
        expect(last_response.status).to eq(200)
      end

      context 'that is not allowed to see queries anywhere' do
        let(:non_member_permissions) { [] }

        it_behaves_like 'unauthorized access'
      end
    end

    context 'filtering for project' do
      let(:path) do
        filter = [project: { operator: "=", values: [project.id.to_s] }].to_json

        "#{api_v3_paths.queries}?filters=#{URI::escape(filter)}"
      end

      let(:prepare) do
        query
        global_query
        other_query

        FactoryBot.create(:member,
                           roles: [role],
                           project: other_query.project,
                           user: current_user)
      end

      it 'includes only queries from the specified project' do
        expect(last_response.body)
          .to be_json_eql(1)
          .at_path("count")
        expect(last_response.body)
          .to be_json_eql(1)
          .at_path("total")
        expect(last_response.body)
          .to be_json_eql(query.name.to_json)
          .at_path("_embedded/elements/0/name")
      end
    end

    context 'filtering for global query' do
      let(:path) do
        filter = [project: { operator: "!*", values: [] }].to_json

        "#{api_v3_paths.queries}?filters=#{URI::escape(filter)}"
      end

      let(:prepare) do
        query
        global_query
        other_query

        FactoryBot.create(:member,
                           roles: [role],
                           project: other_query.project,
                           user: current_user)
      end

      it 'includes only queries from the specified project' do
        expect(last_response.body)
          .to be_json_eql(1)
          .at_path("count")
        expect(last_response.body)
          .to be_json_eql(1)
          .at_path("total")
        expect(last_response.body)
          .to be_json_eql(global_query.name.to_json)
          .at_path("_embedded/elements/0/name")
      end
    end
  end

  describe '#get queries/:id' do
    let(:base_path) { api_v3_paths.query(query.id) }

    it_behaves_like 'GET individual query' do
      context 'lacking permissions' do
        let(:permissions) { [] }

        it_behaves_like 'not found'
      end
    end
  end

  describe '#get queries/default' do
    let(:base_path) { api_v3_paths.query_default }

    it_behaves_like 'GET individual query' do
      context 'lacking permissions' do
        let(:permissions) { [] }

        it_behaves_like 'unauthorized access'
      end
    end
  end

  describe '#delete queries/:id' do
    let(:path) { api_v3_paths.query query.id }
    let(:permissions) { [:view_work_packages, :manage_public_queries] }

    before do
      delete path
    end

    it 'responds with HTTP No Content' do
      expect(last_response.status).to eq 204
    end

    it 'deletes the Query' do
      expect(Query.exists?(query.id)).to be_falsey
    end

    context 'user not allowed' do
      let(:permissions) { [:view_work_packages] }

      it_behaves_like 'unauthorized access'

      it 'does not delete the Query' do
        expect(Query.exists?(query.id)).to be_truthy
      end
    end

    context 'for a non-existent query' do
      let(:query_id) { 1337 } # could be anything as long as we do not create an actual query
      let(:path) { api_v3_paths.query query_id }

      it_behaves_like 'not found' do
        let(:id) { query_id }
        let(:type) { 'Query' }
      end
    end
  end

  describe '#get queries/available_projects' do
    before do
      other_project
      get api_v3_paths.query_available_projects
    end

    it 'should succeed' do
      expect(last_response.status).to eq(200)
    end

    it 'returns a Collection of projects for which the user has view work packages permission' do
      expect(last_response.body)
        .to be_json_eql('Collection'.to_json)
        .at_path('_type')
      expect(last_response.body)
        .to be_json_eql(1.to_json)
        .at_path('count')
      expect(last_response.body)
        .to be_json_eql(1.to_json)
        .at_path('total')
      expect(last_response.body)
        .to be_json_eql(api_v3_paths.project(project.id).to_json)
        .at_path('_embedded/elements/0/_links/self/href')
    end

    context 'user not allowed' do
      let(:permissions) { [] }

      it_behaves_like 'unauthorized access'
    end
  end

  describe '#star' do
    let(:star_path) { api_v3_paths.query_star query.id }

    before(:each) do
      patch star_path
    end

    describe 'public queries' do
      context 'user with permission to manage public queries' do
        let(:permissions) { [:view_work_packages, :manage_public_queries] }

        context 'when starring an unstarred query' do
          it 'should respond with 200' do
            expect(last_response.status).to eq(200)
          end

          it 'should return the query with "starred" property set to true' do
            expect(last_response.body).to be_json_eql(true).at_path('starred')
          end
        end

        context 'when starring already starred query' do
          it 'should respond with 200' do
            expect(last_response.status).to eq(200)
          end

          it 'should return the query with "starred" property set to true' do
            expect(last_response.body).to be_json_eql(true).at_path('starred')
          end
        end

        context 'when trying to star nonexistent query' do
          let(:star_path) { api_v3_paths.query_star 999 }

          it_behaves_like 'not found' do
            let(:id) { 999 }
            let(:type) { 'Query' }
          end
        end
      end

      context 'user without permission to manage public queries' do
        let(:permissions) { [:view_work_packages] }

        it_behaves_like 'unauthorized access'
      end
    end

    describe 'private queries' do
      context 'user with permission to save queries' do
        let(:query) { FactoryBot.create(:private_query, project: project, user: current_user) }
        let(:permissions) { [:view_work_packages, :save_queries] }

        context 'starring his own query' do
          it 'should respond with 200' do
            expect(last_response.status).to eq(200)
          end

          it 'should return the query with "starred" property set to true' do
            expect(last_response.body).to be_json_eql(true).at_path('starred')
          end
        end

        context 'trying to star somebody else\'s query' do
          let(:another_user) { FactoryBot.create(:user) }
          let(:query) { FactoryBot.create(:private_query, project: project, user: another_user) }

          it_behaves_like 'not found'
        end
      end

      context 'user without permission to save queries' do
        let(:query) { FactoryBot.create(:private_query, project: project, user: current_user) }
        let(:permissions) { [:view_work_packages] }

        it_behaves_like 'unauthorized access'
      end
    end
  end

  describe '#unstar' do
    let(:unstar_path) { api_v3_paths.query_unstar query.id }

    describe 'public queries' do
      let(:query) { FactoryBot.create(:public_query, project: project) }

      context 'user with permission to manage public queries' do
        let(:permissions) { [:view_work_packages, :manage_public_queries] }

        context 'when unstarring a starred query' do
          before(:each) do
            FactoryBot.create(:query_menu_item, query: query)
            patch unstar_path
          end

          it 'should respond with 200' do
            expect(last_response.status).to eq(200)
          end

          it 'should return the query with "starred" property set to false' do
            expect(last_response.body).to be_json_eql(false).at_path('starred')
          end
        end

        context 'when unstarring an unstarred query' do
          before(:each) do
            patch unstar_path
          end

          it 'should respond with 200' do
            expect(last_response.status).to eq(200)
          end

          it 'should return the query with "starred" property set to false' do
            expect(last_response.body).to be_json_eql(false).at_path('starred')
          end
        end

        context 'when trying to unstar nonexistent query' do
          let(:unstar_path) { api_v3_paths.query_unstar 999 }
          before(:each) do
            patch unstar_path
          end

          it_behaves_like 'not found' do
            let(:id) { 999 }
            let(:type) { 'Query' }
          end
        end
      end

      context 'user without permission to manage public queries' do
        let(:permissions) { [:view_work_packages] }
        before(:each) do
          patch unstar_path
        end

        it_behaves_like 'unauthorized access'
      end
    end

    describe 'private queries' do
      context 'user with permission to save queries' do
        let(:query) { FactoryBot.create(:private_query, project: project, user: current_user) }
        let(:permissions) { [:view_work_packages, :save_queries] }
        before(:each) do
          patch unstar_path
        end

        context 'unstarring his own query' do
          it 'should respond with 200' do
            expect(last_response.status).to eq(200)
          end

          it 'should return the query with "starred" property set to true' do
            expect(last_response.body).to be_json_eql(false).at_path('starred')
          end
        end

        context 'trying to unstar somebody else\'s query' do
          let(:another_user) { FactoryBot.create(:user) }
          let(:query) { FactoryBot.create(:private_query, project: project, user: another_user) }

          it_behaves_like 'not found'
        end
      end

      context 'user without permission to save queries' do
        let(:query) { FactoryBot.create(:private_query, project: project, user: current_user) }
        let(:permissions) { [:view_work_packages] }
        before(:each) do
          patch unstar_path
        end

        it_behaves_like 'unauthorized access'
      end
    end
  end

  describe '#post queries/form' do
    let(:path) { api_v3_paths.create_query_form }

    before do
      post path
    end

    it 'succeeds' do
      expect(last_response.status).to eq(200)
    end

    it 'returns the form' do
      expect(last_response.body)
        .to be_json_eql('Form'.to_json)
        .at_path('_type')
    end
  end
end
