1# frozen_string_literal: true
 2
 3require_relative "./payment_methods"
 4require_relative "./plan"
 5
 6class Customer
 7	def self.for_jid(jid)
 8		REDIS.get("jmp_customer_id-#{jid}").then do |customer_id|
 9			raise "No customer id" unless customer_id
10			for_customer_id(customer_id)
11		end
12	end
13
14	def self.for_customer_id(customer_id)
15		result = DB.query_defer(<<~SQL, [customer_id])
16			SELECT COALESCE(balance,0) AS balance, plan_name
17			FROM customer_plans LEFT JOIN balances USING (customer_id)
18			WHERE customer_id=$1 LIMIT 1
19		SQL
20		result.then do |rows|
21			new(customer_id, **rows.first&.transform_keys(&:to_sym) || {})
22		end
23	end
24
25	attr_reader :balance
26
27	def initialize(customer_id, plan_name: nil, balance: BigDecimal.new(0))
28		@plan = plan_name && Plan.for(plan_name)
29		@customer_id = customer_id
30		@balance = balance
31	end
32
33	def merchant_account
34		@plan.merchant_account
35	end
36
37	def payment_methods
38		@payment_methods ||=
39			BRAINTREE
40			.customer
41			.find(@customer_id)
42			.then(PaymentMethods.method(:for_braintree_customer))
43	end
44end