# frozen_string_literal: true
require 'active_support/core_ext/object/blank'
require 'active_support/core_ext/hash/slice'
require 'active_support/core_ext/numeric/time'
require 'active_support/core_ext/string/inflections'

require 'logger'
require 'kubernetes-deploy/runner'

module KubernetesDeploy
  class FatalDeploymentError < StandardError; end

  class << self
    attr_writer :logger

    def logger
      @logger ||= begin
        l = Logger.new($stderr)
        l.level = level_from_env
        l.formatter = proc do |severity, datetime, _progname, msg|
          log_text = "[#{severity}][#{datetime}]\t#{msg}"
          case severity
          when "FATAL" then "\033[0;31m#{log_text}\x1b[0m\n" # red
          when "ERROR", "WARN" then "\033[0;33m#{log_text}\x1b[0m\n" # yellow
          when "INFO" then "\033[0;36m#{log_text}\x1b[0m\n" # blue
          else "#{log_text}\n"
          end
        end
        l
      end
    end

    private

    def level_from_env
      return Logger::DEBUG if ENV["DEBUG"]

      if ENV["LEVEL"]
        Logger.const_get(ENV["LEVEL"].upcase)
      else
        Logger::INFO
      end
    end
  end
end