require 'spec_helper'

describe NotePolicy, mdoels: true do
  describe '#rules' do
    let(:user) { create(:user) }
    let(:project) { create(:project, :public) }
    let(:issue) { create(:issue, project: project) }

    def policies(noteable = nil)
      return @policies if @policies

      noteable ||= issue
      note = if noteable.is_a?(Commit)
               create(:note_on_commit, commit_id: noteable.id, author: user, project: project)
             else
               create(:note, noteable: noteable, author: user, project: project)
             end

      @policies = described_class.new(user, note)
    end

    shared_examples_for 'a discussion with a private noteable' do
      let(:noteable) { issue }
      let(:policy) { policies(noteable) }

      context 'when the note author can no longer see the noteable' do
        it 'can not edit nor read the note' do
          expect(policy).to be_disallowed(:admin_note)
          expect(policy).to be_disallowed(:resolve_note)
          expect(policy).to be_disallowed(:read_note)
        end
      end

      context 'when the note author can still see the noteable' do
        before do
          project.add_developer(user)
        end

        it 'can edit the note' do
          expect(policy).to be_allowed(:admin_note)
          expect(policy).to be_allowed(:resolve_note)
          expect(policy).to be_allowed(:read_note)
        end
      end
    end

    context 'when the project is private' do
      let(:project) { create(:project, :private, :repository) }

      context 'when the noteable is a commit' do
        it_behaves_like 'a discussion with a private noteable' do
          let(:noteable) { project.repository.head_commit }
        end
      end
    end

    context 'when the project is public' do
      context 'when the note author is not a project member' do
        it 'can edit a note' do
          expect(policies).to be_allowed(:admin_note)
          expect(policies).to be_allowed(:resolve_note)
          expect(policies).to be_allowed(:read_note)
        end
      end

      context 'when the noteable is a project snippet' do
        it 'can edit note' do
          policies = policies(create(:project_snippet, :public, project: project))

          expect(policies).to be_allowed(:admin_note)
          expect(policies).to be_allowed(:resolve_note)
          expect(policies).to be_allowed(:read_note)
        end

        context 'when it is private' do
          it_behaves_like 'a discussion with a private noteable' do
            let(:noteable) { create(:project_snippet, :private, project: project) }
          end
        end
      end

      context 'when the noteable is a personal snippet' do
        it 'can edit note' do
          policies = policies(create(:personal_snippet, :public))

          expect(policies).to be_allowed(:admin_note)
          expect(policies).to be_allowed(:resolve_note)
          expect(policies).to be_allowed(:read_note)
        end

        context 'when it is private' do
          it 'can not edit nor read the note' do
            policies = policies(create(:personal_snippet, :private))

            expect(policies).to be_disallowed(:admin_note)
            expect(policies).to be_disallowed(:resolve_note)
            expect(policies).to be_disallowed(:read_note)
          end
        end
      end

      context 'when a discussion is confidential' do
        before do
          issue.update_attribute(:confidential, true)
        end

        it_behaves_like 'a discussion with a private noteable'
      end

      context 'when a discussion is locked' do
        before do
          issue.update_attribute(:discussion_locked, true)
        end

        context 'when the note author is a project member' do
          before do
            project.add_developer(user)
          end

          it 'can edit a note' do
            expect(policies).to be_allowed(:admin_note)
            expect(policies).to be_allowed(:resolve_note)
            expect(policies).to be_allowed(:read_note)
          end
        end

        context 'when the note author is not a project member' do
          it 'can not edit a note' do
            expect(policies).to be_disallowed(:admin_note)
            expect(policies).to be_disallowed(:resolve_note)
          end

          it 'can read a note' do
            expect(policies).to be_allowed(:read_note)
          end
        end
      end
    end
  end
end