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require 'spec_helper'

describe GenerateTouEvents do

  before(:each) do
    @gte = GenerateTouEvents.new
  end

  describe '.generate_this_week' do

    # Method is carried out with respect to Date.today; find way to make this testable, without simply
    # following exact logic of method
  end

  describe '.generate_next_week' do
    
    # Method is carried out with respect to Date.today; find way to make this testable, without simply
    # following exact logic of method
  end

  ########################################################

  describe '.create_utility_events_for_rest_of_week_from_date(date)' do

    # # # # # # # # # # # # # # # #

    it 'generates Event instances for the rest of the week' do
      @test_monday = Date.today.monday # Monday of current week
      expect{ @gte.create_events_for_rest_of_week_from_date(TouSchedule.first, @test_monday) }.to change{ Event.count }.by(7)
    end

    # # # # # # # # # # # # # # # #

    it 'generates 5 Events' do
      @test_wednesday = Date.today.monday + 2.days
      expect{ @gte.create_events_for_rest_of_week_from_date(TouSchedule.first, @test_wednesday) }.to change{ Event.count }.by(5)
    end

    # # # # # # # # # # # # # # # #

    it 'generates 3 Events' do
      @test_friday = Date.today.monday + 4.days
      expect{ @gte.create_events_for_rest_of_week_from_date(TouSchedule.first, @test_friday) }.to change{ Event.count }.by(3)
    end

    # # # # # # # # # # # # # # # #

    it 'generates 1 Event' do
      @test_sunday = Date.today.sunday # Sunday of current week
      expect{ @gte.create_events_for_rest_of_week_from_date(TouSchedule.first, @test_sunday) }.to change{ Event.count }.by(1)
    end

  end

  ########################################################

  describe '.create_event_for_date(date)' do

    before(:each) do
      @test_date = (Time.now + 12.days).to_date
    end

    # # # # # # # # # # # # # # # #

    it 'creates an Event instance' do
      
      expect{ @gte.create_event_for_date(TouSchedule.first, @test_date) }.to change{ Event.count }.by(1)
    end

    # # # # # # # # # # # # # # # #

    it 'returns an instance of Event class' do
      returned = @gte.create_event_for_date(TouSchedule.first, @test_date)

      expect(returned.class).to eq(Event)
    end

    # # # # # # # # # # # # # # # #

    it 'creates an associated Event instance' do

      expect{ @gte.create_event_for_date(TouSchedule.first, @test_date) }.to change{ Event.count }.by(1)
    end

    # # # # # # # # # # # # # # # #

    describe 'associated event' do

      before(:all) do
        @tou_schedule = TouSchedule.first
        @tou_schedule.update_attributes(time_zone: 'Hawaii', target_id: Target.last.id)
      end

      before(:each) do
        @gte.create_event_for_date(TouSchedule.first, @test_date)
        @event = Event.last
      end

      it 'has the appropriate target (based on TouSchedule :target)' do
        target = @tou_schedule.target

        expect(@event.targets).to include(target)
      end

      # # # # # # # # # # # # # # # #

      it 'has the proper time zone, dtstart (in-time-zone date and time of day), and duration' do

        expect(@event.time_zone).to eq(@tou_schedule.time_zone)
        expect(@event.dtstart.in_time_zone(@tou_schedule.time_zone).to_date).to eq(@test_date)
        expect(@event.dtstart.in_time_zone(@tou_schedule.time_zone).strftime("%H:%M")).to eq("00:00")
        expect(@event.duration).to eq(24 * 60)
      end

      # # # # # # # # # # # # # # # #

      it 'is published' do
        expect(@event.published).to eq(true)
      end
    end
  end

  ########################################################

  describe '.create_event_signal_for_event(event)' do

    before(:each) do
      @event = FactoryGirl.create(:event)
    end

    it 'creates an associated EventSignal instance' do
      
      expect{ @gte.create_event_signal_for_event(TouSchedule.first, @event) }.to change{ @event.event_signals.count }.by(1)
    end

    # # # # # # # # # # # # # # # #

    it 'returns the EventSignal instance' do

      expect(@gte.create_event_signal_for_event(TouSchedule.first, @event).class.name).to eq('EventSignal')
    end

    # # # # # # # # # # # # # # # #

    context 'if TouSchedule signal type is price' do

      it 'EventSignal instance has price-appropriate signal attributes' do
        TouSchedule.first.update_attributes(signal_type_id: SignalType.find_by_name('PRICE').id)
        @gte.create_event_signal_for_event(TouSchedule.first, @event)
        @event_signal = @event.event_signals.first

        expect(@event_signal.signal_type.name).to eq('PRICE')
        expect(@event_signal.signal_name.name).to eq('ELECTRICITY_PRICE')
      end
    end

    context 'if TouSchedule signal type is level' do

      it 'EventSignal instance has level-appropriate signal attributes' do
        TouSchedule.first.update_attributes(signal_type_id: SignalType.find_by_name('LEVEL').id)
        @gte.create_event_signal_for_event(TouSchedule.first, @event)
        @event_signal = @event.event_signals.first

        expect(@event_signal.signal_type.name).to eq('LEVEL')
        expect(@event_signal.signal_name.name).to eq('simple')
      end
    end

    context 'if TouSchedule signal type is priceRelative' do

      it 'EventSignal instance has price-relative-appropriate signal attributes' do
        TouSchedule.first.update_attributes(signal_type_id: SignalType.find_by_name('PRICE_RELATIVE').id)
        @gte.create_event_signal_for_event(TouSchedule.first, @event)
        @event_signal = @event.event_signals.first

        expect(@event_signal.signal_type.name).to eq('PRICE_RELATIVE')
        expect(@event_signal.signal_name.name).to eq('ELECTRICITY_PRICE')
      end
    end

    context 'if TouSchedule signal type is priceMultiplier' do

      it 'EventSignal instance has price-relative-appropriate signal attributes' do
        TouSchedule.first.update_attributes(signal_type_id: SignalType.find_by_name('PRICE_MULTIPLIER').id)
        @gte.create_event_signal_for_event(TouSchedule.first, @event)
        @event_signal = @event.event_signals.first

        expect(@event_signal.signal_type.name).to eq('PRICE_MULTIPLIER')
        expect(@event_signal.signal_name.name).to eq('ELECTRICITY_PRICE')
      end
    end

  end

  ########################################################

  describe '.is_off_peak?(date)' do

    before(:all) do
      # This Holiday instance can be created once for this group (a.k.a. `before(:all)`),
      # as the tests merely refer to its existence (they don't mutate it).
      non_weekend_date = '2015-12-15'.to_date # 2015-12-15 is a Tuesday
      @holiday = FactoryGirl.create(:holiday, date: non_weekend_date)
    end

    it 'returns true if date is weekend day or holiday' do
      @holiday_date = @holiday.date
      @weekend_date = '2015-12-20'.to_date # 2015-12-20 is a Sunday

      expect(@gte.is_off_peak?(@holiday_date)).to eq(true)
      expect(@gte.is_off_peak?(@weekend_date)).to eq(true)
    end

    it 'returns false if date is non-holiday weekday' do
      @non_holiday_weekday_date = '2016-08-05'.to_date # 2015-08-05 is a Wednesday

      expect(@gte.is_off_peak?(@non_holiday_weekday_date)).to eq(false)
    end
  end

  ########################################################

  describe '.create_event_signal_intervals_for_event_signal_on_date(event_signal, date)' do

    it 'creates 24 associated EventSignalInterval instances' do
      @event_signal = FactoryGirl.create(:event_signal)
      @date = '2015-10-15'.to_date # @date value for this test is arbitrary, since we're only counting # of records

      expect{
        @gte.create_event_signal_intervals_for_event_signal_on_date(TouSchedule.first, @event_signal, @date)
      }.to change{ @event_signal.event_signal_intervals.count }.by(24)
    end

    # # # # # # # # # # # # # # # #

    context 'EventSignalInterval instances have the appropriate payload based on hour/season' do
    
      before(:each) do
        tou_schedule = TouSchedule.first
        tou_schedule.month_02_season = 'winter'
        tou_schedule.month_08_season = 'summer'
        tou_schedule.hour_00_winter = '0.00'
        tou_schedule.hour_00_summer = '1.00'
        tou_schedule.hour_06_winter = '1.00'
        tou_schedule.hour_06_summer = '2.00'
        tou_schedule.hour_12_winter = '2.00'
        tou_schedule.hour_12_summer = '3.00'
        tou_schedule.save
      end
      
      context 'for non-holiday weekday events' do

        it 'references winter hourly attributes for a winter event' do
          @event = FactoryGirl.create(:event, dtstart: '2016-02-15 00:00:00') # 2016-02-15 is a Monday
          @event_date = @event.dtstart.to_date
          @event_signal = FactoryGirl.create(:event_signal, event_id: @event.id)
          @gte.create_event_signal_intervals_for_event_signal_on_date(TouSchedule.first, @event_signal, @event_date)

          expect(@event_signal.event_signal_intervals.find_by_uid(6).payload).to eq(1.00)
          expect(@event_signal.event_signal_intervals.find_by_uid(12).payload).to eq(2.00)
        end

        # # # # # # # # # # # # # # # #

        it 'references summer hourly attributes for a summer event' do
          @event = FactoryGirl.create(:event, dtstart: '2016-08-15 00:00:00') # 2016-08-15 is a Monday
          @event_date = @event.dtstart.to_date
          @event_signal = FactoryGirl.create(:event_signal, event_id: @event.id)
          @gte.create_event_signal_intervals_for_event_signal_on_date(TouSchedule.first, @event_signal, @event_date)

          expect(@event_signal.event_signal_intervals.find_by_uid(6).payload).to eq(2.00)
          expect(@event_signal.event_signal_intervals.find_by_uid(12).payload).to eq(3.00)
        end
      end

      # # # # # # # # # # # # # # # #

      context 'for holiday events' do

        it 'references only the midnight-hour payload value for the appropriate season' do
          holiday = FactoryGirl.create(:holiday, date: '2016-08-17') # 2016-08-17 is a Wednesday
          @event = FactoryGirl.create(:event, dtstart: holiday.date.beginning_of_day)
          @event_date = @event.dtstart.to_date
          @event_signal = FactoryGirl.create(:event_signal, event_id: @event.id)
          @gte.create_event_signal_intervals_for_event_signal_on_date(TouSchedule.first, @event_signal, @event_date)

          expect(@event_signal.event_signal_intervals.find_by_uid(6).payload).to eq(1.00)
          expect(@event_signal.event_signal_intervals.find_by_uid(12).payload).to eq(1.00)
        end
      end

      # # # # # # # # # # # # # # # #

      context 'for non-holiday weekend events' do

        it 'references only the midnight-hour payload value for the appropriate season' do
          @event = FactoryGirl.create(:event, dtstart: '2016-02-13 00:00:00') # 2016-08-15 is a Saturday
          @event_date = @event.dtstart.to_date
          @event_signal = FactoryGirl.create(:event_signal, event_id: @event.id)
          @gte.create_event_signal_intervals_for_event_signal_on_date(TouSchedule.first, @event_signal, @event_date)

          expect(@event_signal.event_signal_intervals.find_by_uid(6).payload).to eq(0.00)
          expect(@event_signal.event_signal_intervals.find_by_uid(12).payload).to eq(0.00)
        end
      end
    end
  end
end