#-- 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'

describe Changeset, type: :model do
  let(:email) { 'bob@bobbit.org' }

  with_virtual_subversion_repository do
    let(:changeset) do
      FactoryBot.build(:changeset,
                       repository: repository,
                       revision: '1',
                       committer: email,
                       comments: 'Initial commit')
    end
  end

  shared_examples_for 'valid changeset' do
    it { expect(changeset.revision).to eq('1') }

    it { expect(changeset.committer).to eq(email) }

    it { expect(changeset.comments).to eq('Initial commit') }

    describe 'journal' do
      let(:journal) { changeset.journals.first }

      it { expect(journal.user).to eq(journal_user) }

      it { expect(journal.notes).to eq(changeset.comments) }
    end
  end

  describe 'empty comment' do
    it 'should comments empty' do
      changeset.comments = ''
      expect(changeset.save).to eq true
      expect(changeset.comments).to eq ''

      if changeset.comments.respond_to?(:force_encoding)
        assert_equal 'UTF-8', changeset.comments.encoding.to_s
      end
    end

    it 'should comments nil' do
      changeset.comments = nil
      expect(changeset.save).to eq true
      expect(changeset.comments).to eq ''

      if changeset.comments.respond_to?(:force_encoding)
        assert_equal 'UTF-8', changeset.comments.encoding.to_s
      end
    end
  end

  describe 'stripping commit' do
    let(:comment) { 'This is a looooooooooooooong comment' + (' ' * 80 + "\n") * 5 }
    with_virtual_subversion_repository do
      let(:changeset) do
        FactoryBot.build(:changeset,
                         repository: repository,
                         revision: '1',
                         committer: email,
                         comments: comment)
      end
    end

    it 'should for changeset comments strip' do
      expect(changeset.save).to eq true
      expect(comment).to_not eq changeset.comments
      expect(changeset.comments).to eq 'This is a looooooooooooooong comment'
    end
  end

  describe 'mapping' do
    let!(:user) { FactoryBot.create :user, login: 'jsmith', mail: 'jsmith@somenet.foo' }
    let!(:repository) { FactoryBot.create(:repository_subversion) }

    it 'should manual user mapping' do
      c = Changeset.create! repository: repository,
                            committer: 'foo',
                            committed_on: Time.now,
                            revision: 100,
                            comments: 'Committed by foo.'

      expect(c.user).to be_nil
      repository.committer_ids = { 'foo' => user.id }
      expect(c.reload.user).to eq user

      # committer is now mapped
      c = Changeset.create! repository: repository,
                            committer: 'foo',
                            committed_on: Time.now,
                            revision: 101,
                            comments: 'Another commit by foo.'
      expect(c.user).to eq user
    end

    it 'should auto user mapping by username' do
      c = Changeset.create! repository: repository,
                            committer: 'jsmith',
                            committed_on: Time.now,
                            revision: 100,
                            comments: 'Committed by john.'
      expect(c.user).to eq user
    end

    it 'should auto user mapping by email' do
      c = Changeset.create! repository: repository,
                            committer: 'john <jsmith@somenet.foo>',
                            committed_on: Time.now,
                            revision: 100,
                            comments: 'Committed by john.'

      expect(c.user).to eq user
    end
  end

  describe '#scan_comment_for_work_package_ids',
           with_settings: {
             commit_fix_done_ratio: '90',
             commit_ref_keywords: 'refs , references, IssueID',
             commit_fix_keywords: 'fixes , closes',
             default_language: 'en'
           } do
    let!(:user) { FactoryBot.create :admin, login: 'dlopper' }
    let!(:open_status) { FactoryBot.create :status }
    let!(:closed_status) { FactoryBot.create :closed_status }

    let!(:other_work_package) { FactoryBot.create :work_package, status: open_status }
    let(:comments) { "Some fix made, fixes ##{work_package.id} and fixes ##{other_work_package.id}" }

    with_virtual_subversion_repository do
      let!(:work_package) do
        FactoryBot.create :work_package,
                          project: repository.project,
                          status: open_status
      end
      let(:changeset) do
        FactoryBot.create(:changeset,
                          repository: repository,
                          revision: '123',
                          committer: user.login,
                          comments: comments)
      end
    end

    before do
      # choosing a status to apply to fix issues
      allow(Setting).to receive(:commit_fix_status_id).and_return closed_status.id
    end

    describe 'with any matching', with_settings: { commit_ref_keywords: '*' } do
      describe 'reference with brackets' do
        let(:comments) { "[##{work_package.id}] Worked on this work_package" }

        it 'should reference' do
          changeset.scan_comment_for_work_package_ids
          work_package.reload

          expect(work_package.changesets).to eq [changeset]
        end
      end

      describe 'reference at line start' do
        let(:comments) { "##{work_package.id} Worked on this work_package" }

        it 'should reference' do
          changeset.scan_comment_for_work_package_ids
          work_package.reload

          expect(work_package.changesets).to eq [changeset]
        end
      end
    end

    describe 'non matching ref' do
      let(:comments) { "Some fix ignores ##{work_package.id}" }
      it 'should reference the work package id' do
        changeset.scan_comment_for_work_package_ids
        work_package.reload

        expect(work_package.changesets).to eq []
      end
    end

    describe 'with timelogs' do
      let!(:activity) { FactoryBot.create :activity, is_default: true }
      before do
        repository.project.enabled_module_names += ['time_tracking']
        repository.project.save!
      end

      it 'should ref keywords any with timelog' do
        allow(Setting).to receive(:commit_ref_keywords).and_return '*'
        allow(Setting).to receive(:commit_logtime_enabled?).and_return true

        {
          '2' => 2.0,
          '2h' => 2.0,
          '2hours' => 2.0,
          '15m' => 0.25,
          '15min' => 0.25,
          '3h15' => 3.25,
          '3h15m' => 3.25,
          '3h15min' => 3.25,
          '3:15' => 3.25,
          '3.25' => 3.25,
          '3.25h' => 3.25,
          '3,25' => 3.25,
          '3,25h' => 3.25
        }.each do |syntax, expected_hours|
          c = Changeset.new repository: repository,
                            committed_on: 24.hours.ago,
                            comments: "Worked on this work_package ##{work_package.id} @#{syntax}",
                            revision: '520',
                            user: user

          expect { c.scan_comment_for_work_package_ids }
            .to change { TimeEntry.count }.by(1)

          expect(c.work_package_ids).to eq [work_package.id]

          time = TimeEntry.order(Arel.sql('id DESC')).first
          assert_equal work_package.id, time.work_package_id
          assert_equal work_package.project_id, time.project_id
          assert_equal user.id, time.user_id

          expect(time.hours).to eq expected_hours
          expect(time.spent_on).to eq Date.yesterday

          expect(time.activity.is_default).to eq true
          expect(time.comments).to include 'r520'
        end
      end

      context 'with a second work package' do
        let!(:work_package2) { FactoryBot.create :work_package, project: repository.project, status: open_status }
        it 'should ref keywords closing with timelog' do
          allow(Setting).to receive(:commit_fix_status_id).and_return closed_status.id
          allow(Setting).to receive(:commit_ref_keywords).and_return '*'
          allow(Setting).to receive(:commit_fix_keywords).and_return 'fixes , closes'
          allow(Setting).to receive(:commit_logtime_enabled?).and_return true

          c = Changeset.new repository: repository,
                            committed_on: Time.now,
                            comments: "This is a comment. Fixes ##{work_package.id} @4.5, ##{work_package2.id} @1",
                            revision: '520',
                            user: user

          expect { c.scan_comment_for_work_package_ids }
            .to change { TimeEntry.count }.by(2)

          expect(c.work_package_ids).to match_array [work_package.id, work_package2.id]

          work_package.reload
          work_package2.reload
          expect(work_package).to be_closed
          expect(work_package2).to be_closed

          times = TimeEntry.order(Arel.sql('id desc')).limit(2)
          expect(times.map(&:work_package_id)).to match_array [work_package.id, work_package2.id]
        end
      end
    end

    it 'should reference the work package id' do
      # make sure work package 1 is not already closed
      expect(work_package.status.is_closed?).to eq false

      changeset.scan_comment_for_work_package_ids
      work_package.reload

      expect(work_package.changesets).to eq [changeset]

      expect(work_package.status).to eq closed_status
      expect(work_package.done_ratio).to eq 90

      # issue change
      journal = work_package.journals.last

      expect(journal.user).to eq user
      expect(journal.notes).to eq 'Applied in changeset r123.'

      # Expect other work package to be unchanged
      # due to other project
      other_work_package.reload
      expect(other_work_package.changesets).to eq []
    end

    describe 'with work package in parent project' do
      let(:parent) { FactoryBot.create :project }
      let!(:work_package) { FactoryBot.create :work_package, project: parent, status: open_status }

      before do
        repository.project.parent = parent
        repository.project.save!
      end

      it 'can reference it' do
        # make sure work package 1 is not already closed
        expect(work_package.status.is_closed?).to eq false

        changeset.scan_comment_for_work_package_ids
        work_package.reload

        expect(work_package.changesets).to eq [changeset]

        # Expect other work package to be unchanged
        # due to other project
        other_work_package.reload
        expect(other_work_package.changesets).to eq []
      end
    end

    describe 'with work package in sub project' do
      let(:sub) { FactoryBot.create :project }
      let!(:work_package) { FactoryBot.create :work_package, project: sub, status: open_status }

      before do
        sub.parent = repository.project
        sub.save!

        repository.project.reload
        sub.reload
      end

      it 'can reference it' do
        # make sure work package 1 is not already closed
        expect(work_package.status.is_closed?).to eq false

        changeset.scan_comment_for_work_package_ids
        work_package.reload

        expect(work_package.changesets).to eq [changeset]

        # Expect other work package to be unchanged
        # due to other project
        other_work_package.reload
        expect(other_work_package.changesets).to eq []
      end
    end
  end

  describe 'assign_openproject user' do
    describe 'w/o user' do
      before do
        changeset.save!
      end

      it_behaves_like 'valid changeset' do
        let(:journal_user) { User.anonymous }
      end
    end

    describe 'with user is committer' do
      let!(:committer) { FactoryBot.create(:user, login: email) }

      before do
        changeset.save!
      end

      it_behaves_like 'valid changeset' do
        let(:journal_user) { committer }
      end
    end

    describe 'current user is not committer' do
      let(:current_user) { FactoryBot.create(:user) }
      let!(:committer) { FactoryBot.create(:user, login: email) }

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

        changeset.save!
      end

      it_behaves_like 'valid changeset' do
        let(:journal_user) { committer }
      end
    end
  end
end