#!/usr/bin/env perl

use strict;
use warnings;
use utf8;

use Pod::POM;
use Template;
use YAML;

my $parser = new Pod::POM meta => 1;

# Static variables
my $static = YAML::LoadFile "variables.yml";

my @files = <src/*.html>;
my @monsters = <monsters/*.html>;

# Directory listings
my $list;

sub list {
   my ($a, $b) = @_;
   my $tmp = "<ul>\n";

   my @listing = <$a/$b/*.html>;
   for (@listing) {
      my ($file) = $_ =~ /\/([^\/]+)$/;
      $tmp .= "   <li><a href=\"$a/$b/$file\">$file</a><br/>\n      ";
      $tmp .= do { local $/; open my $fh, "<$_.desc" or die "$_.desc: $!\n"; <$fh> };
      $tmp .= "   </li>\n";
   }
   $tmp .= "</ul>\n";
   $list->{$a}->{$b} = $tmp;
}

# Directory listings
list "doc", "user";
list "doc", "development";

sub generate {
   my ($indir, $outdir, @list) = @_;
   
   for my $file (@list) {
      my @contents = do { open my $fh, "<$file" or die "$file: $!\n"; <$fh> };
      my $subtitle = shift @contents;
      chomp $subtitle;
      
      my $tt = new Template {
         INTERPOLATE  => 1,
         POST_CHOMP   => 1,
         EVAL_PERL    => 1,
      } or die "$Template::ERROR\n";
      
      my $vars = { list => $list };

      my $contents = "@contents";
      my $data = ''; # Variable to store processed templates
      $tt->process (\$contents, $vars, \$data)
         or die $tt->error;
      
      # Re-initialised with static variables from YAML
      $vars = $static;
      $vars->{subtitle} = $subtitle;
      $vars->{contents} = $data;
      
      my $output = ''; # Variable to store the complete page
      $tt->process ('template.html', $vars, \$output)
         or die $tt->error;

      # Save the page to a html file
      $file =~ s/$indir\/(.+\.html)$/$outdir\/$1/;
      open HTML, ">$file";
      print HTML $output;
      close HTML;
   }
}

generate "src", "html", @files;
generate "monsters", "html\/monsters", @monsters;

my $pom = $parser->parse ("src/news.pod")
   or die $parser->error;
my $html = $pom->present ("PodHTML");
$html =~ s/\[/</g;
$html =~ s/\]/>/g;
open FH, ">", "html/news.html";
print FH $html;
close FH;

%PodRSS::metadata = %{ $pom->metadata };
$html = $pom->present ("PodRSS");
$html =~ s/\[/</g;
$html =~ s/\]/>/g;
open FH, ">", "html/news.rss";
print FH $html;
close FH;


$pom = $parser->parse ("src/news-archive.pod")
   or die $parser->error;
$html = $pom->present ("PodHTML");
$html =~ s/\[/</g;
$html =~ s/\]/>/g;
open FH, ">", "html/news-archive.html";
print FH $html;
close FH;


package PodHTML;

use strict;
use warnings;
use utf8;

my $rcsid = '$Id: generate,v 1.10 2007/09/16 09:04:57 pippijn Exp $';

use base "Pod::POM::View";

our $subdir;
our $dir;
our $menu;

sub view_pod {
   my ($self, $item) = @_;
   $item->content->present ($self)
}

sub view_head1 {
   my ($self, $item) = @_;
   $item->content->present ($self)
}

sub view_head2 {
   my ($self, $item) = @_;
   "<p><em>", $item->title, " ", $item->content, "</em></p>"
}

=head1 AUTHOR

Copyright © 2007 Pippijn van Steenhoven

=head1 LICENSE

This library is free software, you can redistribute it and/or modify
it under the terms of the GNU General Public License.

=cut

1;


package PodRSS;

use strict;
use warnings;
use utf8;

use base "Pod::POM::View";

our %metadata;

sub view_pod {
   my ($self, $item) = @_;
   "<?xml version='1.0' encoding='utf-8'?>\n",
   "<rss version='2.0'>\n",
   $item->content->present ($self),
   "</rss>\n"
}

sub view_head1 {
   my ($self, $item) = @_;
   my $title = $item->title->present ($self);
   "   <channel>\n",
   "      <link>$metadata{link}</link>\n",
   "      <language>$metadata{language}</language>\n",
   "      <title>$title</title>\n",
   $item->content->present ($self),
   "   </channel>\n"
}

sub view_head2 {
   my ($self, $item) = @_;
   my $title = $item->title->present ($self);
   "      <item>\n",
   "      <title>$title</title>\n",
   $item->content->present ($self),
   "      </item>\n"
}

sub view_textblock {
   my ($self, $item) = @_;
   "      <description><![CDATA[$item]]></description>\n"
}