#!c:/usr/bin/perl -w
# ---------------------------------------------------
# MODULE
# ---------------------------------------------------
use strict;
use warnings;
use diagnostics;
use CGI qw/:standard/;
use CGI::Carp qw/fatalsToBrowser warningsToBrowser/;
$CGI::POST_MAX=1024 * 100;  # max 100K posts
$CGI::DISABLE_UPLOADS = 1;  # no uploads
use Data::Dumper;
use vars;
# ---------------------------------------------------
# KONSTANTEN
# ---------------------------------------------------
use constant UNIX => 0; # Unix y/n
# ---------------------------------------------------
# VARIABLEN
# ---------------------------------------------------
$| = 1;
my $cgi         = CGI->new();
my $query       = $cgi->Vars; #extract parameters
my $index_file  = 'c:/apache/cgi-bin/gcp/txt/index.txt'; # nr. | key | pfad
my $index       = 'c:/apache/cgi-bin/gcp/html/index.html';
my $domain = '127.0.0.1';
# ---- TEMPLATE
my $tmplDir = 'c:/apache/cgi-bin/gcp/html';                                     # Verzeichnis mit Templates
my %subs = ();                                                                  # global hash for &substitute substitute_key => value
# ---- SETTINGS
$subs{relative_url} = $cgi->url(-relative=>1);
$subs{full_url}     = $cgi->url(-full=>1);
$subs{self}         = $cgi->url(-relative=>1) . '?action=';
# ---------------------------------------------------
# LOGIK
# ---------------------------------------------------
print $cgi->header(-charset=>'ISO-8859-1',
                   -expires=>'+1s',
                   -type=>'text/html',
                   );
warningsToBrowser(1);
if($query->{action}){
    &zeigeSeite($query->{action});
}else{
    &zeigeSeite('index');
}
exit( 0 );
# ---------------------------------------------------
# SUBS
# ---------------------------------------------------
sub zeigeSeite{
    my $key = $_[0];  #Schlüsselwort für Aufzurufende Seite in /txt/index.txt
    my $pfad = 0;
    my @index = extractFile( $index_file );
# print;
    foreach (@index){
        chomp $_;
        if($_ =~ m/$key/ig){
            $pfad = (split /\t/,$_)[2];
            last;
        }
    }
    if($pfad eq 0){ die "zeigeSeite: $!"; } # -> Fehlerseite?
    my @inhalt = extractFile( $pfad );
    foreach (@inhalt){
        chomp $_;
    }
# ---------------------------------------------------
# DYN. INHALT

    $subs{titel}        = (split/\|/, $inhalt[0])[2];
    $subs{keywords}     = (split/\|/, $inhalt[1])[2];
    $subs{desc}         = (split/\|/, $inhalt[2])[2];
    $subs{page_topic}   = (split/\|/, $inhalt[3])[2];
    my $page            = (split/\|/, $inhalt[4])[2];

    $subs{inhalt} = join"",substitute( extractFile( $page ) );                  # CONTENT auselesen & serialisieren
    
#    $subs{inhalt} =~ s/\n/ /g;

    print substitute( extractFile( $index ) );                                  # SUBSTITUTION IN INDEX.HTML
    
# print;

} #ZeigeSeite
# --------------------------------------------------------
sub extractFile{
# ---- usage
# my @extractedFile = extractFile( "FileName" ); # dieing if file doesn't exists
    my $file = $_[0];
    open(DAT, "$file") || die "$! ($file)";
    my @inhalt = <DAT>;
    close(DAT);
    return @inhalt;
} #extractFile
# --------------------------------------------------------
sub substitute{
# ---- usage
# my @substitutedFile = substitute( @contentToSubstitute ); # substitute-keywords must be added to %subs (global %hash)
    my @err = ();                                                               # array für fehler
    my @file = @_;
    foreach my $eintrag( @file ){
        if( $eintrag =~ /\%\%(.*)\%\%/ ){
            my $keyword = $1;
            unless( exists $subs{$keyword} ){ push @err, "Wert nicht gesetzt: $keyword\n"; $subs{$keyword} = ""; }
            unless( $eintrag =~ s/\Q$&\E/$subs{$keyword}/g ){ print STDERR "Fehler beim ersetzen!\n"; }
            print STDERR "ersetzte: $& mit $eintrag\n";
        }
    }
    print STDERR @err;
    return @file;
} #substitute
# --------------------------------------------------------