########################################################################
# COPYRIGHT - VIX IP PTY LTD ("VIX"). ALL RIGHTS RESERVED.
#
# Module name   : Logger.pm
# Module type   :
# Compiler(s)   : Perl
# Environment(s):
#
# Description   : Logger
#                 Logs to a file
#
#......................................................................#

require 5.008_002;
use strict;
use warnings;
package Logger;

# Set auto flush
$| = 1;

sub new ($$) {
    my ($class, $conf) = @_;
    return bless { conf => $conf }, $class;
}

sub setVerbose ($) {
}

sub logmsg ($$) {
    my ($self, $msg) = @_;
    my $conf = $self->{conf};

    if ($conf->{debug}) {
        print($msg, "\n");
    }

    my $logfile = $conf->{'logfile'};

    open my $fh, ">>$logfile" or die "Can't write blat logfile $logfile: $!\n";
    $msg =~ s~\s+$~~;
    print $fh localtime()." (PID $$): $msg\n";
    close $fh;

    unless ( $self->{RollingLogs} )
    {
        #
        #   Is it time to roll the log file
        #
        my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
           $atime,$mtime,$ctime,$blksize,$blocks) = stat($logfile);

        if ( $size > $conf->{'logfile.size'} )
        {
            rotatelog($self);
        }
    }

    return undef;
}

sub err ($$) {
    my ($self, $msg) = @_;
    $self->logmsg("ERROR: $msg");
    $SIG{__WARN__} = undef;
    $SIG{__DIE__} = undef;
    die "ERROR: $msg\n";
}

sub warn ($$) {
    my ($self, $msg) = @_;
    $self->logmsg("WARNING: $msg");
    return undef;
}

sub verbose ($$) {
    my $self = shift;
    my $conf = $self->{conf};
    $self->logmsg("(V): @_") if ( $conf->{verbose} > 0 );
    return undef;
}

sub verbose2 ($$) {
    my $self = shift;
    my $conf = $self->{conf};
    $self->logmsg("(V): @_") if ( $conf->{verbose} > 1 );
    return undef;
}

sub verbose3 ($$) {
    my $self = shift;
    my $conf = $self->{conf};
    $self->logmsg("(V): @_") if ( $conf->{verbose} > 2 );
    return undef;
}


sub rotatelog ($) {
    my $self = shift;
    my $conf = $self->{conf};
    my $logfile = $conf->{'logfile'};
    $self->{RollingLogs} = 1;

    $self->logmsg('Rotating logfile');
    my $num = $conf->{'logfile.count'};
    unlink "$logfile.$num" if ( -f "$logfile.$num");;
    for (; $num > 1 ; $num--)
    {
        my $prev = $num - 1;
        rename ("$logfile.$prev", "$logfile.$num") if ( -f "$logfile.$prev");
    }
    rename ($logfile, "$logfile.$num");
    $self->logmsg('Rotating logfile complete');
    $self->{RollingLogs} = 0;
    return undef;
}

1;