#!/usr/bin/perl
use strict;

BEGIN { require 'common.pl' }

my $source_file_name = shift;
my $result_file_name = shift;
my $status_file_name = shift;

my %data;
my %pattern;

my $all = get_all_entries ();
for my $key (keys %$all) {
  for (keys %{$all->{$key}->{exact} or {}}) {
    my $entry = $all->{$key}->{exact}->{$_};
    $data{normalize ($entry->{en})} = [$entry->{ja}, $_];
  }

  for (keys %{$all->{$key}->{pattern} or {}}) {
    my $entry = $all->{$key}->{pattern}->{$_};
    $pattern{create_pattern1 (normalize ($entry->{en}))}
        = [$entry->{ja}, $_];
  }
}

my @pattern = sort {length $b <=> length $a} keys %pattern;

my $source_text;
{
  warn "$source_file_name...\n";
  open my $source_file, '<:utf8', $source_file_name
      or die "$0: $source_file_name: $!";
  local $/ = undef;
  $source_text = <$source_file>;
}

my $part = 'cover';

my $status = {};
my $all_status = {};
my $tbt_added = {};

warn "Generating...\n";
$source_text =~ s{(<(?>p(?>re)?|li|d[td]|t[dh]|h[1-6]|caption)(?>\s[^>]*)?>)((?>(?!</?(?>p(?>re)?|li|d(?>[tdl]|iv)|t(?>[dr]|h(?>ead)?|able|b(?>ody|lockquote)|foot)|h[1-6r]|ul|ol|caption|section)(?>\s[^>]*)?>).)+)}
{
  my ($tag, $text) = ($1, $2);
  
  my $prefix = '';
  if ($text =~ s#^(<span class=secno>[^<>]+</span>)##) {
    $prefix = $1;
  }
  
  my $suffix = '';
  my $suffix2 = '';
  if ($text =~ s#(<!--(?:(?!-->).)+)$##s) {
    $suffix = $1 . '-->';
    $suffix2 = '<!--';
  }
  while ($text =~ s#(<!--(?:(?!-->).)+-->\s*)$##s) {
    $suffix = $1 . $suffix;
  }
  
  my $n_text = normalize ($text);

  if ($tag =~ /^<h2 id=(\w+)/) {
    $part = $1;
  }
  
  if (length $n_text) {
    my $ja_text = $data{$n_text};
    
    $status->{all}++;
    $all_status->{$part}->{all}++;
    
    if (defined $ja_text) {
      $status->{ja}++;
      $all_status->{$part}->{ja}++;

      my $jt = $ja_text->[0];
      $jt =~ s{\[\[([A-Z ]+):([^]]+)\]\]}
          {<em class=rfc2119 title="$1">$2</em>}gs;

      add_class ($tag, 'has-ja-translation', $ja_text->[1]) .
      q[<span class=en-original lang=en>] .
      $prefix . escape_id ($text, 'en-') . $suffix . 
      q[</span>] .
      q[<span class=ja-translation lang=ja>] .
      $prefix . $jt . $suffix .
      q[</span>] .
      $suffix2;
    } else {
      my $v;
      for my $pattern (@pattern) {
        if ($n_text =~ /^$pattern$/) {
          $status->{ja}++;
          $all_status->{$part}->{ja}++;

          my $jt = replace_pattern2 ($pattern{$pattern}->[0],
                                     $1, $2, $3, $4, $5, $6, $7, $8, $9);
          $jt =~ s{\[\[([A-Z ]+):([^]]+)\]\]}
              {<em class=rfc2119 title="$1">$2</em>}gs;

          my $real_hash = get_hash ($n_text);
          $v = add_class ($tag, 'has-ja-translation',
                          $pattern{$pattern}->[1], $real_hash) .
              q[<span class=en-original lang=en>] .
              $prefix . escape_id ($text, 'en-') . $suffix .
              q[</span>] .
              q[<span class=ja-translation lang=ja>] .
              $prefix . $jt . $suffix .
              q[</span>] .
              $suffix2;

          unless ($tbt_added->{$n_text}) {
            set_fallback_entry ($real_hash => {en => $text});
            $tbt_added->{$n_text} = 1;
          }
          last;
        }
      }

      unless (defined $v) {
        my $hash = get_hash ($n_text);
        $v = add_class ($tag, 'no-ja-translation', $hash) .
            '<span class=en-original lang=en>' .
            $prefix . $text . $suffix .
            '</span>' .
            $suffix2;
        
        unless ($tbt_added->{$n_text}) {
          set_fallback_entry ($hash => {en => $text});
          $tbt_added->{$n_text} = 1;
        }
      }

      $v;
    }
  } else {
    $1 . $2;
  }
}ges;
$source_text =~ s{(<((?>link|img|script))\s[^>]+>)}{
  my $tag = $1;
  my $tag_name = $2;
  my $n_text = normalize ($tag);
  my $ja_text = $data{$n_text};
  if (defined $ja_text) {
    $ja_text->[0];
  } else {
    unless ($tbt_added->{$n_text}) {
      set_fallback_entry (scalar (get_hash ($n_text)),
                          {en => $tag, tags => [$tag_name . '-tag']});
      $tbt_added->{$n_text} = 1;
    }
    $tag;
  }
}ges;

#$source_text =~ s[<title>][<base href="http://www.whatwg.org/specs/web-apps/current-work/"><title>];

{
  warn "$result_file_name...\n";
  open my $result_file, '>:utf8', $result_file_name
      or die "$0: $result_file_name: $!";
  print $result_file $source_text;
}

{
  my $time = time;
  my @item = ($time, $status->{ja}, $status->{all});
  for my $part (qw(cover introduction infrastructure dom semantics browsers
                   editing comms syntax rendering no)) {
    push @item, $all_status->{$part}->{ja};
    push @item, $all_status->{$part}->{all};
  }

  open my $status_file, '>>', $status_file_name
      or die "$0: $status_file_name: $!";
  print $status_file join "\t", @item;
  print $status_file "\n";
  close $status_file;
}

save_fallback_entries ();

sub add_class ($$$;$) {
  my $tag = shift;
  my $new_class = shift; # should not contain bare & and bare "
  my $hash = shift;
  my $real_hash = shift;
  $real_hash = qq[ data-ja-real-hash="$real_hash"] if defined $real_hash;

  if ($tag =~ /^<li\b/) {
    ## NOTE: This |p| wrapper is necessary, otherwise, if |li| element
    ## is set to |display: table|, then no list marker is shown.
    $tag .= qq[<p class="$new_class ja-translation-inserted" data-ja-hash="$hash"$real_hash>];
  } elsif ($tag =~ /\bclass="/) {
    $tag =~ s/\bclass="([^"]*)"/class="$1 $new_class" data-ja-hash="$hash"$real_hash/;
  } elsif ($tag =~ /\bclass=/) {
    $tag =~ s/\bclass=([^\s>]+)/class="$1 $new_class" data-ja-hash="$hash"$real_hash/g;
  } else {
    $tag =~ s/>/ class="$new_class" data-ja-hash="$hash"$real_hash>/;
  }
  
  return $tag;
} # add_class

sub escape_id ($$) {
  my $content = shift;
  my $id_prefix = shift; # should not contain bare & and bare "
  
  $content =~ s{<([a-zA-Z0-9-][^<>]+)>}{
    my $tag_content = $1;

    if ($tag_content =~ /\bid="/) {
      $tag_content =~ s/\bid="([^"]*)"/id="$id_prefix$1"/;
    } elsif ($tag_content =~ /\bid=/) {
      $tag_content =~ s/\bid=(\S+)/id="$id_prefix$1"/;
    }

#    if ($tag_content =~ /\bhref=#/) {
#      $tag_content =~ s/\bhref=#(\S+)/href=#$id_prefix$1/;
#    }

    '<' . $tag_content . '>';
  }ge;

  return $content;
} # escape_id

## Author: Wakaba <w@suika.fam.cx>.
## License: Copyright 2008 Wakaba.  You are granted a license to use,
##     reproduce and create derivative works of this script.
## $Date: 2008/11/02 06:31:30 $