mirror of
https://github.com/LaCasemate/fab-manager.git
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104 lines
3.5 KiB
Ruby
104 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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# Coupon is a textual code associated with a discount rate or an amount of discount
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class Coupon < ApplicationRecord
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has_many :invoices
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after_commit :create_stripe_coupon, on: [:create]
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after_commit :delete_stripe_coupon, on: [:destroy]
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validates :name, presence: true
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validates :code, presence: true
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validates :code, format: { with: /\A[A-Z0-9\-]+\z/, message: 'only caps letters, numbers, and dashes' }
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validates :code, uniqueness: true
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validates :validity_per_user, presence: true
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validates :validity_per_user, inclusion: { in: %w[once forever] }
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validates_with CouponDiscountValidator
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validates_with CouponExpirationValidator
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scope :disabled, -> { where(active: false) }
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scope :expired, -> { where('valid_until IS NOT NULL AND valid_until < ?', DateTime.current) }
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scope :sold_out, lambda {
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joins(:invoices).select('coupons.*, COUNT(invoices.id) as invoices_count').group('coupons.id')
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.where.not(max_usages: nil).having('COUNT(invoices.id) >= coupons.max_usages')
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}
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scope :active, lambda {
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joins('LEFT OUTER JOIN invoices ON invoices.coupon_id = coupons.id')
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.select('coupons.*, COUNT(invoices.id) as invoices_count')
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.group('coupons.id')
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.where('active = true AND (valid_until IS NULL OR valid_until >= ?)', DateTime.current)
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.having('COUNT(invoices.id) < coupons.max_usages OR coupons.max_usages IS NULL')
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}
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def safe_destroy
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if invoices.size.zero?
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destroy
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else
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false
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end
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end
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##
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# Check the status of the current coupon. The coupon:
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# - may have been disabled by an admin,
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# - may has expired because the validity date has been reached,
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# - may have been used the maximum number of times it was allowed
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# - may have already been used by the provided user, if the coupon is configured to allow only one use per user,
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# - may exceed the current cart's total amount, if the coupon is configured to discount an amount (and not a percentage)
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# - may be available for use
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# @param [user_id] {Number} if provided and if the current coupon's validity_per_user == 'once', check that the coupon
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# was already used by the provided user
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# @param [amount] {Number} if provided and if the current coupon's type == 'amont_off' check that the coupon
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# does not exceed the cart total price
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# @return {String} status identifier
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##
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def status(user_id = nil, amount = nil)
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if !active?
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'disabled'
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elsif !valid_until.nil? && valid_until.at_end_of_day < DateTime.current
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'expired'
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elsif !max_usages.nil? && invoices.count >= max_usages
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'sold_out'
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elsif !user_id.nil? && validity_per_user == 'once' && users_ids.include?(user_id.to_i)
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'already_used'
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elsif !amount.nil? && type == 'amount_off' && amount_off > amount.to_f
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'amount_exceeded'
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else
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'active'
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end
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end
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def type
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if amount_off.nil? && !percent_off.nil?
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'percent_off'
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elsif percent_off.nil? && !amount_off.nil?
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'amount_off'
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end
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end
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def users
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invoices.map(&:user)
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end
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def users_ids
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users.map(&:id)
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end
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def send_to(user_id)
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NotificationCenter.call type: 'notify_member_about_coupon',
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receiver: User.find(user_id),
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attached_object: self
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end
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private
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def create_stripe_coupon
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StripeWorker.perform_async(:create_stripe_coupon, id)
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end
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def delete_stripe_coupon
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StripeWorker.perform_async(:delete_stripe_coupon, code)
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end
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end
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