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# File 'lib/stripe_mock/request_handlers/invoices.rb', line 59
def upcoming_invoice(route, method_url, params, )
route =~ method_url
raise Stripe::InvalidRequestError.new('Missing required param: customer', nil, http_status: 400) if params[:customer].nil?
raise Stripe::InvalidRequestError.new('When previewing changes to a subscription, you must specify either `subscription` or `subscription_items`', nil, http_status: 400) if !params[:subscription_proration_date].nil? && params[:subscription].nil? && params[:subscription_plan].nil?
raise Stripe::InvalidRequestError.new('Cannot specify proration date without specifying a subscription', nil, http_status: 400) if !params[:subscription_proration_date].nil? && params[:subscription].nil?
customer = customers[params[:customer]]
assert_existence :customer, params[:customer], customer
raise Stripe::InvalidRequestError.new("No upcoming invoices for customer: #{customer[:id]}", nil, http_status: 404) if customer[:subscriptions][:data].length == 0
subscription =
if params[:subscription]
customer[:subscriptions][:data].select{|s|s[:id] == params[:subscription]}.first
else
customer[:subscriptions][:data].min_by { |sub| sub[:current_period_end] }
end
if params[:subscription_proration_date] && !((subscription[:current_period_start]..subscription[:current_period_end]) === params[:subscription_proration_date])
raise Stripe::InvalidRequestError.new('Cannot specify proration date outside of current subscription period', nil, http_status: 400)
end
prorating = false
subscription_proration_date = nil
subscription_plan_id = params[:subscription_plan] || subscription[:plan][:id]
subscription_quantity = params[:subscription_quantity] || subscription[:quantity]
if subscription_plan_id != subscription[:plan][:id] || subscription_quantity != subscription[:quantity]
prorating = true
invoice_date = Time.now.to_i
subscription_plan = assert_existence :plan, subscription_plan_id, plans[subscription_plan_id.to_s]
preview_subscription = Data.mock_subscription
preview_subscription = resolve_subscription_changes(preview_subscription, [subscription_plan], customer, { trial_end: params[:subscription_trial_end] })
preview_subscription[:id] = subscription[:id]
preview_subscription[:quantity] = subscription_quantity
subscription_proration_date = params[:subscription_proration_date] || Time.now
else
preview_subscription = subscription
invoice_date = subscription[:current_period_end]
end
invoice_lines = []
if prorating
unused_amount = subscription[:plan][:amount] * subscription[:quantity] * (subscription[:current_period_end] - subscription_proration_date.to_i) / (subscription[:current_period_end] - subscription[:current_period_start])
invoice_lines << Data.mock_line_item(
id: new_id('ii'),
amount: -unused_amount,
description: 'Unused time',
plan: subscription[:plan],
period: {
start: subscription_proration_date.to_i,
end: subscription[:current_period_end]
},
quantity: subscription[:quantity],
proration: true
)
preview_plan = assert_existence :plan, params[:subscription_plan], plans[params[:subscription_plan]]
if preview_plan[:interval] == subscription[:plan][:interval] && preview_plan[:interval_count] == subscription[:plan][:interval_count] && params[:subscription_trial_end].nil?
remaining_amount = preview_plan[:amount] * subscription_quantity * (subscription[:current_period_end] - subscription_proration_date.to_i) / (subscription[:current_period_end] - subscription[:current_period_start])
invoice_lines << Data.mock_line_item(
id: new_id('ii'),
amount: remaining_amount,
description: 'Remaining time',
plan: preview_plan,
period: {
start: subscription_proration_date.to_i,
end: subscription[:current_period_end]
},
quantity: subscription_quantity,
proration: true
)
end
end
subscription_line = get_mock_subscription_line_item(preview_subscription)
invoice_lines << subscription_line
Data.mock_invoice(invoice_lines,
id: new_id('in'),
customer: customer[:id],
discount: customer[:discount],
date: invoice_date,
starting_balance: customer[:account_balance],
subscription: preview_subscription[:id],
period_start: prorating ? invoice_date : preview_subscription[:current_period_start],
period_end: prorating ? invoice_date : preview_subscription[:current_period_end],
next_payment_attempt: preview_subscription[:current_period_end] + 3600 )
end
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