require 'singleton'
require 'logging'

module Scoutui::Logger

  class LogMgr
    include Singleton

    LOGLEVELS = [ DEBUG = 0,  INFO = 1, WARN = 2, ERROR = 3, FATAL = 4]

    attr_accessor :root
    attr_accessor :commands
    attr_accessor :benchmarks
    attr_accessor :level

    def initialize

      @root = Logging.logger(STDOUT)
      @root.level = :debug
      @level = LOGLEVELS[DEBUG]

      Logging.appenders.stderr('Standard Error', :level => :error)

      # Logging.appenders.file('Command File', :filename => 'command.log')
      # Logging.logger['Commands'].appenders = 'Command File'

      @asserts = Logging.logger['Assertions']
      @asserts.add_appenders(
                  Logging.appenders.stdout
      )
      @asserts.add_appenders(
                  Logging.appenders.file("assertions.log")
      )

      @asserts.level = :debug

      @commands = Logging.logger['Commands']
      @commands.add_appenders(
                   Logging.appenders.stdout,
                   Logging.appenders.file('commands.log')
      )
      @commands.level = :debug


      @benchmarks = Logging.logger['Benchmarks']
      @benchmarks.add_appenders(
          Logging.appenders.stdout,
          Logging.appenders.file('benchmarks.log')
      )
      @benchmarks.level = :info

      #Logging.logger.root.level = :warn
    end

    def asserts
      @asserts
    end

    def command
      @commands
    end
    def commands
      @commands
    end

    def setLevel(_level)
      @root.level = _level.to_sym

      _l = _level.to_s
      if _l.match(/debug/i)
        @level = LOGLEVELS[DEBUG]
      elsif _l.match(/info/i)
        @level = LOGLEVELS[INFO]
      elsif _l.match(/warn/i)
        @level = LOGLEVELS[WARN]
      elsif _l.match(/error/i)
        @level = LOGLEVELS[ERROR]
      elsif _l.match(/fatal/i)
        @level = LOGLEVELS[FATAL]
      end

    end

    def warn(txt)
      log('warn', txt)
    end

    def err(txt)
      error(txt)
    end

    def error(txt)
      log('error', txt)
    end

    def fatal(txt)
      log('fatal', txt)
    end

    def info(txt)
      log('info', txt)
    end

    def debug(txt)
      log('debug', txt)
    end


    def benchmark
      @benchmarks
    end
    def benchmarks
      @benchmarks
    end


    def log(level, txt)

      if level.match(/debug/i)
        @root.debug txt if DEBUG >= @level
      elsif level.match(/info/i)
        @root.info txt  if INFO >= @level
      elsif level.match(/warn/i)
        @root.warn txt  if WARN >= @level
      elsif level.match(/error/i)
        @root.error txt if ERROR >= @level
      elsif level.match(/fatal/i)
        @root.fatal txt  if FATAL >= @level
      end

    end

  end


end