auction_query.rb

class AuctionQuery
  def initialize(relation = Auction.all)
    @relation = relation
  end

  def delivery_deadline_expired(relation = @relation)
    relation.where!('delivery_deadline < ?', Time.zone.now)
  end

  def accepted(relation = @relation)
    relation.where(result: accepted_enum)
  end

  def delivered(relation = @relation)
    relation.where.not(delivery_url: [nil, ""])
  end

  def cap_submitted(relation = @relation)
    relation.where.not(cap_proposal_url: [nil, ""])
  end

  def paid(relation = @relation)
    relation.where(
      awardee_paid_status: paid_enum
    )
  end

  def not_paid(relation = @relation)
    relation.where(
      awardee_paid_status: not_paid_enum
    )
  end

  def complete_and_successful
    relation = delivery_deadline_expired(@relation)
    relation = delivered(relation)
    relation = accepted(relation)
    relation = cap_submitted(relation)
    relation = paid(relation)

    relation
  end

  def payment_pending
    relation = delivery_deadline_expired(@relation)
    relation = delivered(relation)
    relation = accepted(relation)
    relation = cap_submitted(relation)
    relation = not_paid(relation)

    relation
  end

  private

  def paid_enum
    Auction.awardee_paid_statuses['paid']
  end

  def not_paid_enum
    Auction.awardee_paid_statuses['not_paid']
  end

  def accepted_enum
    Auction.results['accepted']
  end

end