package EBL::ebl_reporting;

use strict;
use warnings;
use IO::File;
#use Time::localtime;
require Time::localtime; 

sub open
{
  my $class=shift;
  my $log_file=shift;

  # Referenz auf STDOUT
  my $fh=\*STDOUT;

  # wenn object und kein File => neuer Name = alter Name
  if(ref $class && !$log_file)
  {
    $log_file=$class->{file};
    $class->{fh}->close();
  }

  # versuchen Fh zu öffnen
  if($log_file) {
    my $ofh=IO::File->new();
    my $mode='>';
    $mode='>>' if( ref $class );
    if($ofh->open($log_file,$mode) ) {
      $fh=$ofh;
    } else {
      $fh->print("ERROR open $log_file ($!)\nwrite to STDOUT\n");
    }
  }

  # objektwerte neu setzen wenn objekt
  if( ref $class ) {
    $class->{fh}=$fh;
    $class->{file}=$log_file;
    return $class;
  }

  # neues Objekt
  return bless({ fh=>$fh, file=>$log_file, on=>1 },$class);
}

# log(1) => logging an
# log(0) => logging aus
# log() => aktueller Status
sub log
{
  my $self=shift;
  $self->{on}=shift() if(@_);
  return $self->{on};
}

# shell(1) => zusätzliche Shell-Ausgabe an
# shell(0) => zusätzliche Shell-Ausgabe aus
# shell() => aktueller Status
sub shell
{
  my $self=shift;
  $self->{on}=shift() if(@_);
  return $self->{on};
}

# filename
sub file   { shift->{file}; }

# filehandle
sub fh     { shift->{fh}; }

# write to file mit optionaler Ausgabe auf die Shell
sub write  {
  $_[0]->fh->print($_[1]."\n") if($_[0]->log()); 
  print($_[1]."\n") if($_[0]->shell()); 
  }

# write to file and screen
sub doublewrite  { 
  $_[0]->fh->print($_[1]."\n") if($_[0]->log()); 
  print($_[1]."\n")
}

# close filehandle
sub close  { shift->fh->close(); }

# wahr wenn Datei geöffnet
sub opened { shift->fh->opened(); }

1;