Class: DatesResolver::AR

Inherits:
Object
  • Object
show all
Defined in:
lib/dates_resolver.rb

Instance Method Summary collapse

Constructor Details

#initialize(collection_of_objects = []) ⇒ AR

Returns a new instance of AR.



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# File 'lib/dates_resolver.rb', line 7

def initialize(collection_of_objects=[])
  @collection = collection_of_objects
  @start_dates = @collection.map(&:start_date).uniq
  @end_dates = @collection.map(&:end_date).uniq
  @dates = (@start_dates + @end_dates).uniq.sort!
  @new_collection =[]
  @logger = Logger.new(STDOUT)
end

Instance Method Details

#resolve ⇒ Object 



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# File 'lib/dates_resolver.rb', line 16

def resolve
  @collection.each do |obj|
    new_obj = obj.clone
    @dates.each_with_index do |date, i|
      if (@end_dates.include?(date) && !(@start_dates.include?(date)))
        #if not back to back also
        (@logger.debug("not fit to be resolved: date is present only in end_dates") && next)
      end

      if !(date >= obj.start_date)
        (@logger.debug("not fit to be resolved: date is lesser than current obj date") && next)
      end

      #hack for 1day overlaps
      #TODO: patch it
      if (@end_dates.include?(date) && @start_dates.include?(date))
        start_date = date
        end_date = date
        next_date = date
        increment_next_date(next_date)
      else
        # start date is set to be the date value in current iteration
        start_date = date
        next_date = @dates[i+1]
        end_date = (if @start_dates.include?(next_date)
        (next_date -1)
      else
        #seems the next coming up date is an end_date
        increment_next_date(next_date)
        next_date
      end)
    end

    new_obj.start_date = start_date
    new_obj.end_date = end_date
    @new_collection << new_obj.clone
    #resolve only 1 overlapping promotional end or exception at once.
    #also halt the resolver if the max end date is achieved
    break if (end_date == obj.end_date || end_date == @dates.last)
  end
end
@new_collection.uniq
end