# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Timelog, feature_category: :team_planning do
  subject { create(:timelog) }

  let_it_be(:issue) { create(:issue) }
  let_it_be(:merge_request) { create(:merge_request) }

  it { is_expected.to belong_to(:project) }
  it { is_expected.to belong_to(:issue).touch(true) }
  it { is_expected.to belong_to(:merge_request).touch(true) }
  it { is_expected.to belong_to(:timelog_category).optional(true) }
  it { is_expected.to belong_to(:namespace) }

  it { is_expected.to be_valid }

  it { is_expected.to validate_presence_of(:time_spent) }
  it { is_expected.to validate_presence_of(:user) }

  it { is_expected.to validate_length_of(:summary).is_at_most(255) }

  it { expect(subject.project_id).not_to be_nil }

  describe 'validation' do
    it 'is invalid if issue_id and merge_request_id are missing' do
      subject.attributes = { issue: nil, merge_request: nil }

      expect(subject).to be_invalid
    end

    it 'is invalid if issue_id and merge_request_id are set' do
      subject.attributes = { issue: issue, merge_request: merge_request }

      expect(subject).to be_invalid
    end

    it 'is valid if only issue_id is set' do
      subject.attributes = { issue: issue, merge_request: nil }

      expect(subject).to be_valid
    end

    it 'is valid if only merge_request_id is set' do
      subject.attributes = { merge_request: merge_request, issue: nil }

      expect(subject).to be_valid
    end

    describe 'check if total time spent would be within the set range' do
      let_it_be(:time_already_spent) { 1.minute.to_i }

      before_all do
        create(:issue_timelog, issue: issue, time_spent: time_already_spent)
      end

      it 'is valid when a negative time spent offsets the time already spent' do
        timelog = build(:issue_timelog, issue: issue, time_spent: -time_already_spent)

        expect(timelog).to be_valid
      end

      context 'when total time spent is within the allowed range' do
        before_all do
          # Offset the time already spent
          create(:issue_timelog, issue: issue, time_spent: -time_already_spent)
        end

        it 'is valid' do
          timelog = build(:issue_timelog, issue: issue, time_spent: 1.minute.to_i)

          expect(timelog).to be_valid
        end
      end

      context 'when total time spent is outside the allowed range' do
        it 'adds an error if total time spent would exceed a year' do
          time_to_spend = described_class::MAX_TOTAL_TIME_SPENT - time_already_spent + 1.second.to_i
          timelog = build(:issue_timelog, issue: issue, time_spent: time_to_spend)

          expect { timelog.save! }
            .to raise_error(ActiveRecord::RecordInvalid,
              _('Validation failed: Total time spent cannot exceed a year.'))
        end

        it 'adds an error if total time spent would be negative' do
          time_to_spend = -time_already_spent - 1.second.to_i
          timelog = build(:issue_timelog, issue: issue, time_spent: time_to_spend)

          expect { timelog.save! }
            .to raise_error(ActiveRecord::RecordInvalid,
              _('Validation failed: Total time spent cannot be negative.'))
        end
      end
    end

    describe 'when importing' do
      it 'is valid if issue_id and merge_request_id are missing' do
        subject.attributes = { issue: nil, merge_request: nil, importing: true }

        expect(subject).not_to be_valid
      end
    end
  end

  describe 'scopes' do
    let_it_be(:group) { create(:group) }
    let_it_be(:group_project) { create(:project, :empty_repo, group: group) }
    let_it_be(:group_issue) { create(:issue, project: group_project) }
    let_it_be(:group_merge_request) { create(:merge_request, source_project: group_project) }

    let_it_be(:subgroup) { create(:group, parent: group) }
    let_it_be(:subgroup_project) { create(:project, :empty_repo, group: subgroup) }
    let_it_be(:subgroup_issue) { create(:issue, project: subgroup_project) }
    let_it_be(:subgroup_merge_request) { create(:merge_request, source_project: subgroup_project) }

    let_it_be(:short_time_ago) { 5.days.ago }
    let_it_be(:medium_time_ago) { 15.days.ago }
    let_it_be(:long_time_ago) { 65.days.ago }

    let_it_be(:user) { create(:user) }
    let_it_be(:timelog) { create(:issue_timelog, spent_at: long_time_ago, user: user) }
    let_it_be(:timelog1) { create(:issue_timelog, spent_at: medium_time_ago, issue: group_issue, user: user) }
    let_it_be(:timelog2) { create(:issue_timelog, spent_at: short_time_ago, issue: subgroup_issue) }
    let_it_be(:timelog3) { create(:merge_request_timelog, spent_at: long_time_ago) }
    let_it_be(:timelog4) { create(:merge_request_timelog, spent_at: medium_time_ago, merge_request: group_merge_request) }
    let_it_be(:timelog5) { create(:merge_request_timelog, spent_at: short_time_ago, merge_request: subgroup_merge_request) }

    describe '.in_group' do
      it 'return timelogs created for group issues and merge requests' do
        expect(described_class.in_group(group)).to contain_exactly(timelog1, timelog2, timelog4, timelog5)
      end
    end

    describe '.for_user' do
      it 'return timelogs created by user' do
        expect(described_class.for_user(user)).to contain_exactly(timelog, timelog1)
      end
    end

    describe '.in_project' do
      it 'returns timelogs created for project issues and merge requests' do
        project = create(:project, :empty_repo)

        create(:issue_timelog)
        create(:merge_request_timelog)
        timelog1 = create(:issue_timelog, issue: create(:issue, project: project))
        timelog2 = create(:merge_request_timelog, merge_request: create(:merge_request, source_project: project))

        expect(described_class.in_project(project.id)).to contain_exactly(timelog1, timelog2)
      end
    end

    describe '.at_or_after' do
      it 'returns timelogs at the time limit' do
        timelogs = described_class.at_or_after(short_time_ago)

        expect(timelogs).to contain_exactly(timelog2, timelog5)
      end

      it 'returns timelogs after given time' do
        timelogs = described_class.at_or_after(just_before(short_time_ago))

        expect(timelogs).to contain_exactly(timelog2, timelog5)
      end
    end

    describe '.at_or_before' do
      it 'returns timelogs at the time limit' do
        timelogs = described_class.at_or_before(long_time_ago)

        expect(timelogs).to contain_exactly(timelog, timelog3)
      end

      it 'returns timelogs before given time' do
        timelogs = described_class.at_or_before(just_after(long_time_ago))

        expect(timelogs).to contain_exactly(timelog, timelog3)
      end
    end

    def just_before(time)
      time - 1.day
    end

    def just_after(time)
      time + 1.day
    end
  end

  describe 'hooks' do
    describe '.set_project' do
      it 'populates project with issuable project' do
        timelog = create(:issue_timelog, issue: issue)

        expect(timelog.project_id).to be(timelog.issue.project_id)
      end
    end
  end

  describe 'sorting' do
    let_it_be(:user) { create(:user) }

    let_it_be(:timelog_a) do
      create(
        :issue_timelog, time_spent: 7200, spent_at: 1.hour.ago,
        created_at: 1.hour.ago, updated_at: 1.hour.ago, user: user
      )
    end

    let_it_be(:timelog_b) do
      create(
        :issue_timelog, time_spent: 5400, spent_at: 2.hours.ago,
        created_at: 2.hours.ago, updated_at: 2.hours.ago, user: user
      )
    end

    let_it_be(:timelog_c) do
      create(
        :issue_timelog, time_spent: 1800, spent_at: 30.minutes.ago,
        created_at: 30.minutes.ago, updated_at: 30.minutes.ago, user: user
      )
    end

    let_it_be(:timelog_d) do
      create(
        :issue_timelog, time_spent: 3600, spent_at: 1.day.ago,
        created_at: 1.day.ago, updated_at: 1.day.ago, user: user
      )
    end

    describe '.sort_by_field' do
      it 'sorts timelogs by time spent in ascending order' do
        expect(user.timelogs.sort_by_field(:time_spent_asc)).to eq([timelog_c, timelog_d, timelog_b, timelog_a])
      end

      it 'sorts timelogs by time spent in descending order' do
        expect(user.timelogs.sort_by_field(:time_spent_desc)).to eq([timelog_a, timelog_b, timelog_d, timelog_c])
      end

      it 'sorts timelogs by spent at in ascending order' do
        expect(user.timelogs.sort_by_field(:spent_at_asc)).to eq([timelog_d, timelog_b, timelog_a, timelog_c])
      end

      it 'sorts timelogs by spent at in descending order' do
        expect(user.timelogs.sort_by_field(:spent_at_desc)).to eq([timelog_c, timelog_a, timelog_b, timelog_d])
      end

      it 'sorts timelogs by created at in ascending order' do
        expect(user.timelogs.sort_by_field(:created_at_asc)).to eq([timelog_d, timelog_b, timelog_a, timelog_c])
      end

      it 'sorts timelogs by created at in descending order' do
        expect(user.timelogs.sort_by_field(:created_at_desc)).to eq([timelog_c, timelog_a, timelog_b, timelog_d])
      end

      it 'sorts timelogs by updated at in ascending order' do
        expect(user.timelogs.sort_by_field(:updated_at_asc)).to eq([timelog_d, timelog_b, timelog_a, timelog_c])
      end

      it 'sorts timelogs by updated at in descending order' do
        expect(user.timelogs.sort_by_field(:updated_at_desc)).to eq([timelog_c, timelog_a, timelog_b, timelog_d])
      end
    end
  end

  describe 'ensure_namespace_id' do
    let_it_be(:project) { create(:project) }

    context 'when timelog belongs to an issue' do
      let(:issue) { create(:issue, project: project) }
      let(:timelog) { described_class.new(issue: issue) }

      it 'sets the namespace id from the issue namespace id' do
        # zero until we remove the default when table is backfilled
        # TODO: Remove with https://gitlab.com/gitlab-org/gitlab/-/issues/514588
        expect(timelog.namespace_id).to be_zero

        timelog.valid?

        expect(timelog.namespace_id).to eq(issue.namespace_id)
      end
    end

    context 'when timelog belongs to a merge request' do
      let(:merge_request) { create(:merge_request, source_project: project) }
      let(:timelog) { described_class.new(merge_request: merge_request) }

      it 'sets the namespace id from the merge request project namespace id' do
        # zero until we remove the default when table is backfilled
        # TODO: Remove with https://gitlab.com/gitlab-org/gitlab/-/issues/514588
        expect(timelog.namespace_id).to be_zero

        timelog.valid?

        expect(timelog.namespace_id).to eq(merge_request.source_project.project_namespace_id)
      end
    end
  end
end
