# 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|
          case severity
          when "FATAL", "ERROR" then "\033[0;31m[#{severity}]\t#{msg}\x1b[0m\n" # red
          when "WARN" then "\033[0;33m[#{severity}]\t#{msg}\x1b[0m\n" # yellow
          when "INFO" then "\033[0;36m#{msg}\x1b[0m\n" # blue
          else "[#{severity}]\t#{msg}\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