# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Resolvers::TimelogResolver do
  include GraphqlHelpers

  specify do
    expect(described_class).to have_non_null_graphql_type(::Types::TimelogType.connection_type)
  end

  context "with a group" do
    let_it_be(:current_user) { create(:user) }
    let_it_be(:group) { create(:group) }
    let_it_be(:project) { create(:project, :empty_repo, :public, group: group) }

    describe '#resolve' do
      let_it_be(:short_time_ago) { 5.days.ago.beginning_of_day }
      let_it_be(:medium_time_ago) { 15.days.ago.beginning_of_day }

      let_it_be(:issue) { create(:issue, project: project) }
      let_it_be(:merge_request) { create(:merge_request, source_project: project) }

      let_it_be(:timelog1) { create(:issue_timelog, issue: issue, spent_at: short_time_ago.beginning_of_day) }
      let_it_be(:timelog2) { create(:issue_timelog, issue: issue, spent_at: short_time_ago.end_of_day) }
      let_it_be(:timelog3) { create(:merge_request_timelog, merge_request: merge_request, spent_at: medium_time_ago) }

      let(:args) { { start_time: short_time_ago, end_time: short_time_ago.noon } }

      it 'finds all timelogs' do
        timelogs = resolve_timelogs

        expect(timelogs).to contain_exactly(timelog1, timelog2, timelog3)
      end

      it 'finds all timelogs within given dates' do
        timelogs = resolve_timelogs(**args)

        expect(timelogs).to contain_exactly(timelog1)
      end

      context 'when only start_date is present' do
        let(:args) { { start_date: short_time_ago } }

        it 'finds timelogs until the end of day of end_date' do
          timelogs = resolve_timelogs(**args)

          expect(timelogs).to contain_exactly(timelog1, timelog2)
        end
      end

      context 'when only end_date is present' do
        let(:args) { { end_date: medium_time_ago } }

        it 'finds timelogs until the end of day of end_date' do
          timelogs = resolve_timelogs(**args)

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

      context 'when start_time and end_date are present' do
        let(:args) { { start_time: short_time_ago, end_date: short_time_ago } }

        it 'finds timelogs until the end of day of end_date' do
          timelogs = resolve_timelogs(**args)

          expect(timelogs).to contain_exactly(timelog1, timelog2)
        end
      end

      context 'when start_date and end_time are present' do
        let(:args) { { start_date: short_time_ago, end_time: short_time_ago.noon } }

        it 'finds all timelogs within start_date and end_time' do
          timelogs = resolve_timelogs(**args)

          expect(timelogs).to contain_exactly(timelog1)
        end
      end

      context 'when arguments are invalid' do
        let_it_be(:error_class) { Gitlab::Graphql::Errors::ArgumentError }

        context 'when start_time and start_date are present' do
          let(:args) { { start_time: short_time_ago, start_date: short_time_ago } }

          it 'returns correct error' do
            expect { resolve_timelogs(**args) }
              .to raise_error(error_class, /Provide either a start date or time, but not both/)
          end
        end

        context 'when end_time and end_date are present' do
          let(:args) { { end_time: short_time_ago, end_date: short_time_ago } }

          it 'returns correct error' do
            expect { resolve_timelogs(**args) }
              .to raise_error(error_class, /Provide either an end date or time, but not both/)
          end
        end

        context 'when start argument is after end argument' do
          let(:args) { { start_time: short_time_ago, end_time: medium_time_ago } }

          it 'returns correct error' do
            expect { resolve_timelogs(**args) }
              .to raise_error(error_class, /Start argument must be before End argument/)
          end
        end
      end
    end
  end

  def resolve_timelogs(user: current_user, **args)
    context = { current_user: user }
    resolve(described_class, obj: group, args: args, ctx: context)
  end
end