#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2014 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.
#
# 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.md for more details.
#++

require File.expand_path('../../spec_helper', __FILE__)

describe OpenProject::GithubIntegration do
  before do
    allow(Setting).to receive(:host_name).and_return('example.net')
  end

  describe '.extract_work_package_ids' do
    it 'should return an empty array for an empty source' do
      result = OpenProject::GithubIntegration::NotificationHandlers.send(
                :extract_work_package_ids, '')
      expect(result).to eql([])
    end

    it 'should find a plain work package url' do
      source = "Blabla\nOP#1234\n"
      result = OpenProject::GithubIntegration::NotificationHandlers.send(
                :extract_work_package_ids, source)
      expect(result).to eql([1234])
    end

    it 'should find a plain work package url' do
      source = 'Blabla\nhttps://example.net/work_packages/234\n'
      result = OpenProject::GithubIntegration::NotificationHandlers.send(
                :extract_work_package_ids, source)
      expect(result).to eql([234])
    end

    it 'should find a work package url in markdown link syntax' do
      source = 'Blabla\n[WP 234](https://example.net/work_packages/234)\n'
      result = OpenProject::GithubIntegration::NotificationHandlers.send(
                :extract_work_package_ids, source)
      expect(result).to eql([234])
    end

    it 'should find multiple work package urls' do
      source = "I reference https://example.net/work_packages/434\n and Blabla\n[WP 234](https://example.net/wp/234)\n"
      result = OpenProject::GithubIntegration::NotificationHandlers.send(
                :extract_work_package_ids, source)
      expect(result).to eql([434, 234])
    end

    it 'should find multiple occurences of a work package only once' do
      source = "I reference https://example.net/work_packages/434\n and Blabla\n[WP 234](https://example.net/work_packages/434)\n"
      result = OpenProject::GithubIntegration::NotificationHandlers.send(
                :extract_work_package_ids, source)
      expect(result).to eql([434])
    end
  end

  describe '.find_visible_work_packages' do
    let(:user) do
      user = double('A User')
      expect(user).to receive(:allowed_to?) { |permission, project|
        expect(permission).to equal(:add_work_package_notes)
        project == :project_with_permissions
      }.at_least(:once)
      user
    end
    let(:visible_wp) do
      wp = double('Visible Work Package')
      allow(wp).to receive(:project).and_return(:project_with_permissions)
      wp
    end
    let(:invisible_wp) do
      wp = double('Invisible Work Package')
      allow(wp).to receive(:project).and_return(:project_without_permissions)
      wp
    end

    before do
      allow(WorkPackage).to receive(:includes).and_return(WorkPackage)
      allow(WorkPackage).to receive(:find_by_id) {|id| wps[id]}
    end

    shared_examples_for 'GithubIntegration.find_visible_work_packages' do
      subject { OpenProject::GithubIntegration::NotificationHandlers.send(
                  :find_visible_work_packages, ids, user) }
      it { expect(subject).to eql(expected) }
    end

    describe 'should find an existing work package' do
      let(:wps) { [visible_wp] }
      let(:ids)  { [0] }
      let(:expected) { wps }

      it_behaves_like 'GithubIntegration.find_visible_work_packages'
    end

    describe 'should not find a non-existing work package' do
      let(:wps) { [invisible_wp] }
      let(:ids)  { [0] }
      let(:expected) { [] }

      it_behaves_like 'GithubIntegration.find_visible_work_packages'
    end

    describe 'should find multiple existing work packages' do
      let(:wps) { [visible_wp, visible_wp] }
      let(:ids)  { [0, 1] }
      let(:expected) { wps }

      it_behaves_like 'GithubIntegration.find_visible_work_packages'
    end

    describe 'should not find work package which the user shall not see' do
      let(:wps) { [visible_wp, invisible_wp, visible_wp, invisible_wp] }
      let(:ids)  { [0, 1, 2, 3] }
      let(:expected) { [visible_wp, visible_wp] }

      it_behaves_like 'GithubIntegration.find_visible_work_packages'
    end
  end

  describe '.issue_comment' do
    context 'for a non-pull request issue' do
      let(:payload) do
        { 'action' => 'created',
          'issue' => { 'pull_request' => { 'html_url' => nil } } }
      end

      before do
        expect(OpenProject::GithubIntegration::NotificationHandlers).not_to receive(
          :comment_on_referenced_work_packages)
      end

      it 'should do nothing' do
        OpenProject::GithubIntegration::NotificationHandlers.issue_comment(payload)
      end
    end
  end

  describe '.pull_request' do
    context 'with a synchronize action' do
      let(:payload) { {'action' => 'synchronize'} }

      before do
        expect(OpenProject::GithubIntegration::NotificationHandlers).not_to receive(
          :comment_on_referenced_work_packages)
      end

      it 'should do nothing' do
        OpenProject::GithubIntegration::NotificationHandlers.pull_request(payload)
      end
    end
  end
end