lib/Gruntmaster/Page/Base.pm

   1 package Gruntmaster::Page::Base;
   2
   3 use 5.014000;
   4 use strict;
   5 use warnings;
   6 our $VERSION = '5999.000_001';
   7
   8 use File::Slurp qw/read_file/;
   9 use HTML::Template::Compiled;
  10
  11 ##################################################
  12
  13 sub read_templates {
  14         my $root = 'tmpl';
  15         my $name = shift;
  16
  17         map { m/\.(.+)$/; $1 => scalar read_file $_ } <tmpl/$name.*>;
  18 }
  19
  20 my %header_templates = read_templates 'header';
  21 my %footer_templates = read_templates 'footer';
  22
  23 sub header{
  24   my ($language, $title) = @_;
  25   $header_templates{$language} =~ s/TITLE_GOES_HERE/$title/ger;
  26 }
  27
  28 sub footer{
  29   $footer_templates{$_[0]};
  30 }
  31
  32 ##################################################
  33
  34 use POSIX ();
  35 use List::Util ();
  36 use LWP::UserAgent;
  37 use Plack::Request ();
  38 use feature ();
  39
  40 my $ua = LWP::UserAgent->new;
  41 my %templates;
  42
  43 use Carp qw/cluck/;
  44
  45 sub import_to {
  46         my ($self, $caller, $name, $title) = @_;
  47
  48         strict->import;
  49         feature->import(':5.14');
  50         warnings->import;
  51         File::Slurp->export_to_level(1, $caller, qw/read_file/);
  52         List::Util->export_to_level(1, $caller, qw/sum/);
  53
  54         no strict 'refs';
  55         *{"${caller}::ISA"} = [__PACKAGE__];
  56         *{"${caller}::VERSION"} = $VERSION;
  57         *{"${caller}::strftime"} = \&POSIX::strftime;
  58         *{"${caller}::debug"} = sub {
  59                 local $Log::Log4perl::caller_depth = $Log::Log4perl::caller_depth + 1;
  60                 $_[0]->{'psgix.logger'}->({qw/level debug message/ => $_[1]})
  61         };
  62         *{"${caller}::db"} = sub { $_[0]->{'gruntmaster.dbic'} };
  63         *{"${caller}::reply"} = sub { [200, ['Content-Type' => 'text/plain', 'Cache-Control' => 'no-cache'], [ @_ ] ] };
  64         *{"${caller}::purge"} = sub {
  65                 return unless $ENV{PURGE_HOST};
  66                 my $req = HTTP::Request->new(PURGE => "http://$ENV{PURGE_HOST}$_[0]");
  67                 $ua->request($req)
  68         };
  69
  70         if ($name) {
  71                 $templates{$caller} = { read_templates $name };
  72                 $templates{$caller}{$_}  = header ($_, $title) . $templates{$caller}{$_} for keys $templates{$caller};
  73                 $templates{$caller}{$_} .= footer  $_  for keys $templates{$caller};
  74         }
  75 }
  76
  77 sub import {
  78         return unless $_[0] eq __PACKAGE__;
  79         splice @_, 1, 0, scalar caller;
  80         goto &import_to
  81 }
  82
  83 ##################################################
  84
  85 sub generate{
  86         my ($self, $lang, @args) = @_;
  87
  88         my $htc = HTML::Template::Compiled->new(scalarref => \$templates{$self}{$lang}, default_escape => 'HTML', use_perl => 1);
  89         $self->_generate($htc, $lang, @args);
  90         my $out = $htc->output;
  91         utf8::encode($out);
  92         my $vary = 'Accept-Language, ' . $self->vary;
  93         [200, ['Content-Type' => 'text/html', 'Content-Language' => $_[1], 'Vary' => $vary, 'X-Forever' => 1, 'Cache-Control' => 'max-age=' . $self->max_age], [ $out ] ]
  94 }
  95
  96 sub _generate {}
  97
  98 sub vary { '' }
  99
 100 sub max_age { 60 }
 101
 102 sub variants {
 103         return [] unless exists $templates{$_[0]};
 104         [ map { [ $_, 1, 'text/html', undef, undef, $_, undef ]} keys $templates{$_[0]} ]
 105 }
 106
 107 1