#-#############################################
# Template.pm
# Date: 05/15/2004
# Version: eTPL-1.2.1
# Last update: 06/06/2004
#-#############################################
# Best code-viewing with 'Komodo' by ActiveState
# http://www.activestate.com
#-##############################################
# LICENSE-CONDITIONS:
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
#-#############################################
# 
# In accordance with the GPL, each copyright notice MUST remain intact.
#
# eTPL Release Version 1.2.1 (06/06/2004)
# Copyright (C) 2004 Dieter Werner
# All rights reserved by the author.
#
#-#############################################
# OK - Here we go ...

    package Template;
	
#-#############################################
# Use-Section
#-#############################################
    use strict;
    use warnings;
    
#-#############################################
# Constructor
#-#############################################
sub new {
    my $invoc  = shift;
    my $attrib	= shift || undef;
    my $class 	= ref($invoc) || $invoc;
    my $self 	= {};

    bless($self, $class);
    return($self->init_template($attrib));
}

#-#############################################
# Define properties
#-#############################################
sub init_template {
    my $self 	= shift;
    my $attrib	= shift;
    local $_;
	
    $attrib
        ?    do {
                ($self->{'template'}->{$_} = $attrib->{$_})
                foreach (keys %$attrib)
	}
        :	($self->{'template'} = {
				
	    }
             );
}

#-#############################################
# Sub: Get parameters
#-#############################################
sub tpl_param {
    my ($self, $tag, $id, $param) = @_;

    (!defined $tag and defined $id) && $self->oops('Template-Tag not defined');
    (defined $tag and !defined $id) && $self->oops('Tag-Name not defined');
	
    ($tag, $id) = (
        'TPL_COMMON',
        'Common'
    ) unless defined $tag and defined $id;

    push @{$self->{'template'}->{'param'}->{$tag}->{$id}}, $param;
}

#-#############################################
# Sub: Read and prepare a template file
#-#############################################
sub disp_template {
    my ($self, $file) = @_;
    my ($tag, $id);
	
    local $_;
    local $/;
		
    open FILE, "./Template/$file.txt" or $self->oops('Template-File not found');
    $self->{'template'}->{'cont'} .= <FILE>;
    close FILE;
	
        foreach $tag (keys %{$self->{'template'}->{'param'}}) {
            while ($self->{'template'}->{'cont'} =~ /\<$tag\sName\=\"(\w+)\"\>(.*?)\<\/$tag\sName\=\"\w+\"\>/sg) {
                $self->{'template'}->{$tag}->{$1} = $2;
                $self->{'template'}->{'cont'}
				=~ s/\<$tag\sName\=\"($1)\"\>.*?\<\/$tag\sName\=\"$1\"\>/\<$tag\=\"$1\"\>/s;
            }
        }
		
    _replace_content($self);
}

#-#############################################
# Sub: Replace named contents and global variables
#-#############################################
sub _replace_content {
    my $self = shift;
    my ($tag, $id, $subst, $temp, $cache);
    local $_;
		
        foreach $tag (keys %{$self->{'template'}->{'param'}}) {
            $tag eq 'TPL_COMMON' && next;
			
                foreach $id (keys %{$self->{'template'}->{'param'}->{$tag}}) {
                    foreach $subst (@{$self->{'template'}->{'param'}->{$tag}->{$id}}) {					
                        $temp = $self->{'template'}->{$tag}->{$id} || next;
						
                        $temp =~ s/\<TPL_VAR\=\'$_\'\>/$subst->{$_}/sg
                       foreach (keys %$subst);
						
						$cache .= $temp;
					}
				
					$self->{'template'}->{'cont'} =~ s/\<$tag\=\"$id\"\>/$cache/s;
					undef $cache;
				}
		}
	
		foreach $subst (@{$self->{'template'}->{'param'}->{'TPL_COMMON'}->{'Common'}}) {	
			$self->{'template'}->{'cont'} =~ s/\<TPL_VAR\=\'$_\'\>/$subst->{$_}/sg
			foreach (keys %$subst);
		}
	
	_replace_txt($self);	
}

#-#############################################
# Sub: Replace text-content (Translated text)
#-#############################################
sub _replace_txt {
    my $self = shift;
    my $err_message = '<b>Text-Replacement is not available</b>';
	
    _wipe_template($self)
    unless exists $self->{'txt'} or exists $self->{'long_txt'};
	
    $self->{'template'}->{'cont'}
    =~ s/\<TXT\=\'(\w+.*?)\'\>/$self->{'txt'}->{$1} || $self->{'long_txt'}->{$1} || $err_message/esg;
	
    _wipe_template($self);
}

#-#############################################
# Sub: Delete unused stuff
#-#############################################
sub _wipe_template {
    my $self = shift;
	
    $self->{'template'}->{'cont'}	=~ s/\<TPL_.*?\/TPL_\w+\sName\=\"\w+\"\>\r*\n//sg;
    $self->{'template'}->{'cont'}	=~ s/\<TPL_\w+\=\"\w+\"\>\r*\n//sg;
	
    _print_template($self); 
}

#-#############################################
# Sub: Display the template
#-#############################################
sub _print_template {
    my $self = shift;
	
    print $self->{'template'}->{'cont'};
    delete $self->{'template'};
}

#-###########################################-#
1;