# frozen_string_literal: true

class CommandList
	include Enumerable

	def self.for(jid)
		Customer.for_jid(jid).catch { nil }.then do |customer|
			EMPromise.resolve(customer&.registered?).catch { nil }.then do |reg|
				next Registered.for(customer, reg.phone) if reg
				CommandList.new
			end
		end
	end

	def each
		yield node: "jabber:iq:register", name: "Register"
	end

	class Registered < CommandList
		def self.for(customer, tel)
			EMPromise.all([
				REDIS.get("catapult_fwd-#{tel}"),
				customer.plan_name ? customer.payment_methods : []
			]).then do |(fwd, payment_methods)|
				Registered.new(*[
					(HAS_CREDIT_CARD unless payment_methods.empty?),
					(HAS_CURRENCY if customer.currency),
					(HAS_FORWARDING if fwd)
				].compact)
			end
		end

		def initialize(*args)
			@extra = args
		end

		ALWAYS = [
			{ node: "number-display", name: "Display JMP Number" },
			{ node: "configure-calls", name: "Configure Calls" },
			{ node: "usage", name: "Show Monthly Usage" },
			{ node: "reset sip account", name: "Create or Reset SIP Account" },
			{
				node: "credit cards",
				name: "Credit Card Settings and Management"
			}
		].freeze

		def each
			super
			([ALWAYS] + @extra).each do |commands|
				commands.each { |x| yield x }
			end
		end
	end

	HAS_CURRENCY = [
		node: "alt top up",
		name: "Buy Account Credit by Bitcoin, Mail, or Interac eTransfer"
	].freeze

	HAS_FORWARDING = [
		node: "record-voicemail-greeting",
		name: "Record Voicemail Greeting"
	].freeze

	HAS_CREDIT_CARD = [
		node: "top up", name: "Buy Account Credit by Credit Card"
	].freeze
end