Class: SpreeCmCommissioner::VoteCreditDeductor

Inherits:
Object
  • Object
show all
Defined in:
app/services/spree_cm_commissioner/vote_credit_deductor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(voting_session:, contestant:, user:, quantity:) ⇒ VoteCreditDeductor

Returns a new instance of VoteCreditDeductor.



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# File 'app/services/spree_cm_commissioner/vote_credit_deductor.rb', line 10

def initialize(
  voting_session:, # VotingSession the vote belongs to
  contestant:,     # VotingContestant being voted for
  user:,           # Spree::User casting the vote
  quantity:        # number of votes to cast
)
  @voting_session = voting_session
  @contestant = contestant
  @user = user
  @quantity = quantity
end

Instance Attribute Details

#contestant ⇒ Object (readonly)

Returns the value of attribute contestant.



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# File 'app/services/spree_cm_commissioner/vote_credit_deductor.rb', line 8

def contestant
  @contestant
end

#quantity ⇒ Object (readonly)

Returns the value of attribute quantity.



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# File 'app/services/spree_cm_commissioner/vote_credit_deductor.rb', line 8

def quantity
  @quantity
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'app/services/spree_cm_commissioner/vote_credit_deductor.rb', line 8

def user
  @user
end

#voting_session ⇒ Object (readonly)

Returns the value of attribute voting_session.



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# File 'app/services/spree_cm_commissioner/vote_credit_deductor.rb', line 8

def voting_session
  @voting_session
end

Instance Method Details

#call ⇒ Object

Returns the VotingCredit that was deducted.



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# File 'app/services/spree_cm_commissioner/vote_credit_deductor.rb', line 23

def call
  credit = find_eligible_credit
  raise 'No eligible voting credits available' if credit.nil?

  credit.with_lock do
    raise 'Insufficient voting credits' unless credit.can_use?(quantity)

    # Deduct free votes first, then paid.
    # Example: quantity=5, free_remaining=3, paid_remaining=10
    #   free_deduct=3, paid_deduct=2
    free_deduct = [credit.free_votes_remaining, quantity].min
    paid_deduct = quantity - free_deduct

    credit.update!(
      free_votes_used: credit.free_votes_used + free_deduct,
      paid_votes_used: credit.paid_votes_used + paid_deduct
    )

    memo = "Used #{quantity}, paid: #{paid_deduct}, free: #{free_deduct} votes for voting session #{voting_session.id}"
    SpreeCmCommissioner::VotingCreditTransaction.create!(
      tenant_id: credit.tenant_id,
      vote_credit: credit,
      action: :use,
      amount: quantity,
      originator: voting_session,
      episode_id: voting_session.episode_id,
      user_total_amount: credit.available_votes,
      memo: memo
    )
  end

  credit
end