lib/Gruntmaster/Page/Base.pm

   1 package Gruntmaster::Page::Base;
   2
   3 use 5.014000;
   4 use strict;
   5 use warnings;
   6
   7 use File::Slurp qw/read_file/;
   8 use HTML::Template::Compiled;
   9
  10 ##################################################
  11
  12 sub read_templates {
  13         my $root = 'tmpl';
  14         my $name = shift;
  15
  16         map { m/\.(.+)$/; $1 => scalar read_file $_ } <tmpl/$name.*>;
  17 }
  18
  19 my %header_templates = read_templates 'header';
  20 my %footer_templates = read_templates 'footer';
  21
  22 sub header{
  23   my ($language, $title) = @_;
  24   $header_templates{$language} =~ s/TITLE_GOES_HERE/$title/ger;
  25 }
  26
  27 sub footer{
  28   $footer_templates{$_[0]};
  29 }
  30
  31 ##################################################
  32
  33 use POSIX ();
  34 use Gruntmaster::Data ();
  35 use List::Util ();
  36 use LWP::UserAgent;
  37
  38 my $ua = LWP::UserAgent->new;
  39 my %templates;
  40
  41 use Carp qw/cluck/;
  42
  43 sub import_to {
  44         my ($self, $caller, $name, $title) = @_;
  45
  46         Gruntmaster::Data->export_to_level(1, $caller);
  47         List::Util->export_to_level(1, $caller, qw/sum/);
  48
  49         no strict 'refs';
  50         *{"${caller}::strftime"} = \&POSIX::strftime;
  51         *{"${caller}::debug"} = sub {
  52                 local $Log::Log4perl::caller_depth = $Log::Log4perl::caller_depth + 1;
  53                 $_[0]->{'psgix.logger'}->({qw/level debug message/ => $_[1]})
  54         };
  55         *{"${caller}::reply"} = sub { [200, ['Content-Type' => 'text/plain', 'Cache-Control' => 'no-cache'], [ @_ ] ] };
  56         *{"${caller}::purge"} = sub {
  57                 return unless $ENV{PURGE_HOST};
  58                 my $req = HTTP::Request->new(PURGE => "http://$ENV{PURGE_HOST}$_[0]");
  59                 $ua->request($req)
  60         };
  61
  62         if ($name) {
  63                 $templates{$caller} = { read_templates $name };
  64                 $templates{$caller}{$_}  = header ($_, $title) . $templates{$caller}{$_} for keys $templates{$caller};
  65                 $templates{$caller}{$_} .= footer  $_  for keys $templates{$caller};
  66         }
  67 }
  68
  69 sub import {
  70         return unless $_[0] eq __PACKAGE__;
  71         splice @_, 1, 0, scalar caller;
  72         goto &import_to
  73 }
  74
  75 ##################################################
  76
  77 sub generate{
  78         my ($self, $lang, @args) = @_;
  79
  80         my $htc = HTML::Template::Compiled->new(scalarref => \$templates{$self}{$lang}, default_escape => 'HTML',);
  81         $self->_generate($htc, $lang, @args);
  82         my $out = $htc->output;
  83         utf8::downgrade($out);
  84         my $vary = 'Accept-Language, ' . $self->vary;
  85         [200, ['Content-Type' => 'text/html', 'Content-Language' => $_[1], 'Vary' => $vary, 'X-Forever' => 1, 'Cache-Control' => 'max-age=' . $self->max_age], [ $out ] ]
  86 }
  87
  88 sub _generate {}
  89
  90 sub vary { '' }
  91
  92 sub max_age { 60 }
  93
  94 sub variants {
  95         return [] unless exists $templates{$_[0]};
  96         [ map { [ $_, 1, 'text/html', undef, undef, $_, undef ]} keys $templates{$_[0]} ]
  97 }
  98
  99 1