BathHacked/energy-sparks

module Comparisons
  class ChangeInSolarPvSinceLastYearController < BaseController
    private

    def colgroups
      [
        { label: '' },
        { label: t('analytics.benchmarking.configuration.column_groups.kwh'), colspan: 3 },
        { label: t('analytics.benchmarking.configuration.column_groups.co2_kg'), colspan: 3 },
        { label: t('analytics.benchmarking.configuration.column_groups.solar_self_consumption') }
      ]
    end

    def headers
      [
        t('analytics.benchmarking.configuration.column_headings.school'),
        t('analytics.benchmarking.configuration.column_headings.previous_year'),
        t('analytics.benchmarking.configuration.column_headings.last_year'),
        t('analytics.benchmarking.configuration.column_headings.change_pct'),
        t('analytics.benchmarking.configuration.column_headings.previous_year'),
        t('analytics.benchmarking.configuration.column_headings.last_year'),
        t('analytics.benchmarking.configuration.column_headings.change_pct'),
        t('analytics.benchmarking.configuration.column_headings.estimated')
      ]
    end

    def key
      :change_in_solar_pv_since_last_year
    end

    def advice_page_key
      :solar_pv
    end

    def load_data
      Comparison::ChangeInSolarPvSinceLastYear.for_schools(@schools).with_data.by_percentage_change(:previous_year_solar_pv_kwh, :current_year_solar_pv_kwh)
    end
  end
end