require "kemal"
require "./logger"

class LogHandler < Kemal::BaseLogHandler
	def initialize(@logger : MLogger)
	end

	def call(env)
		elapsed_time = Time.measure { call_next env }
		elapsed_text = elapsed_text elapsed_time
		msg = "#{env.response.status_code} #{env.request.method}" \
			" #{env.request.resource} #{elapsed_text}"
		@logger.debug(msg)
		env
	end

	def write(msg)
		@logger.debug(msg)
	end

	private def elapsed_text(elapsed)
		millis = elapsed.total_milliseconds
		return "#{millis.round(2)}ms" if millis >= 1
		"#{(millis * 1000).round(2)}µs"
	end
end