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50 lines
1.6 KiB
Ruby
50 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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# A single line inside an invoice. Can be a subscription or a reservation
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class InvoiceItem < Footprintable
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belongs_to :invoice
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has_one :invoice_item # associates invoice_items of an invoice to invoice_items of an Avoir
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has_one :payment_gateway_object, as: :item
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belongs_to :object, polymorphic: true
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belongs_to :reservation, foreign_type: 'Reservation', foreign_key: 'object_id'
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belongs_to :subscription, foreign_type: 'Subscription', foreign_key: 'object_id'
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belongs_to :wallet_transaction, foreign_type: 'WalletTransaction', foreign_key: 'object_id'
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belongs_to :offer_day, foreign_type: 'OfferDay', foreign_key: 'object_id'
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after_create :chain_record
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after_update :log_changes
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def amount_after_coupon
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# deduct coupon discount
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coupon_service = CouponService.new
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coupon_service.ventilate(invoice.total, amount, invoice.coupon)
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end
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# return the item amount, coupon discount deducted, if any, and VAT excluded, if applicable
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def net_amount
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# deduct VAT
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vat_service = VatHistoryService.new
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vat_rate = vat_service.invoice_vat(invoice)
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Rational(amount_after_coupon / (vat_rate / 100.00 + 1)).round.to_f
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end
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# return the VAT amount for this item
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def vat
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amount_after_coupon - net_amount
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end
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private
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def log_changes
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return if Rails.env.test?
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return unless changed?
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puts "WARNING: InvoiceItem update triggered [ id: #{id}, invoice reference: #{invoice.reference} ]"
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puts '---------- changes ----------'
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puts changes
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puts '---------------------------------'
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end
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end
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