# frozen_string_literal: true

require "value_semantics/monkey_patched"

class CallAttempt
	EXPENSIVE_ROUTE = {
		"usd_beta_unlimited-v20210223" => 0.9,
		"cad_beta_unlimited-v20210223" => 1.1
	}.freeze

	def self.for(customer, other_tel, rate, usage, digits)
		included_credit = [customer.minute_limit.to_d - usage, 0].max
		if !rate || rate >= EXPENSIVE_ROUTE.fetch(customer.plan_name, 0.1)
			Unsupported.new
		elsif included_credit + customer.balance < rate * 10
			NoBalance.new(balance: customer.balance)
		else
			for_ask_or_go(customer, other_tel, rate, usage, digits)
		end
	end

	def self.for_ask_or_go(customer, other_tel, rate, usage, digits)
		can_use = customer.minute_limit.to_d + customer.monthly_overage_limit
		if digits != "1" && can_use - usage < rate * 10
			AtLimit.new
		else
			new(from: customer.registered?.phone, to: other_tel)
		end
	end

	value_semantics do
		from(/\A\+\d+\Z/)
		to(/\A\+\d+\Z/)
	end

	def to_render
		[:forward, { locals: to_h }]
	end

	class Unsupported
		def to_render
			["outbound/unsupported"]
		end
	end

	class NoBalance
		value_semantics do
			balance Numeric
		end

		def to_render
			["outbound/no_balance", { locals: to_h }]
		end
	end

	class AtLimit
		def to_render
			["outbound/at_limit"]
		end
	end
end