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package JWebmail::Plugin::I18N2;
use Mojo::Base 'Mojolicious::Plugin';
use Mojolicious::Controller;
use Mojo::File;
use Mojo::Util 'monkey_patch';
use Config::Tiny;
package JWebmail::Plugin::I18N2::Match {
use Mojo::Base 'Mojolicious::Routes::Match';
has '_i18n2_stash';
sub path_for {
my $self = shift;
if (my $lang = $self->_i18n2_stash->{lang}) {
if (ref $_[0] eq 'HASH') {
$_[0]->{lang} ||= $lang;
}
elsif (ref $_[1] eq 'HASH') {
$_[1]->{lang} ||= $lang;
}
else {
my ($dom, %args) = @_%2 == 0 ? (undef, @_) : @_;
$args{lang} ||= $lang;
@_ = ($dom, %args);
shift @_ unless defined $_[0];
}
}
$self->next::method(@_)
}
}
has '_language_loaded' => sub { {} };
sub register {
my ($self, $app, $conf) = @_;
$conf //= {};
my $i18n_log = $app->log->context('[' . __PACKAGE__ . ']');
# config
# 1. what languages
# 2. where are the files
# 3. fallback language
#
# look for languages automatically
my $defaultLang = $conf->{default_language} || 'en';
my $fileLocation = $conf->{directory} && Mojo::File->new($conf->{directory})->is_abs
? $conf->{directory}
: $app->home->child($conf->{directory} || 'lang');
my @languages = keys %{$conf->{languages} // {}};
unless (@languages) {
@languages = map { $_ =~ s|^.*/(..)\.lang$|$1|r } glob("$fileLocation/*.lang");
}
$app->defaults(languages => [@languages]);
# load languages
my $TXT;
for my $l (@languages) {
$TXT->{$l} = _loadi18n($fileLocation, $l, $i18n_log);
}
{
local $" = ',';
$i18n_log->debug("loaded languages (@languages)");
}
$self->_language_loaded( { map { $_ => 1 } @languages } );
# add translator as helper
my $i18n = sub {
my ($lang, $word) = @_;
$TXT->{$lang}{$word} || scalar(
local $" = ' ',
$lang && $word ? $app->log->debug('[' . __PACKAGE__ . "] missing translation for $lang:$word @{[ caller(2) ]}[0..2]") : (),
'',
)
};
$app->helper( l => sub { my $c = shift; $i18n->($c->stash->{lang}, shift) } );
# modify incoming url
$app->hook(before_dispatch => sub {
my $c = shift;
unshift @{ $c->req->url->path->parts }, ''
unless $self->_language_loaded->{$c->req->url->path->parts->[0] || ''};
});
# modify generated url
$app->hook(before_dispatch => sub {
my $c = shift;
$c->match(JWebmail::Plugin::I18N2::Match->new(
root => $c->app->routes,
_i18n2_stash => $c->stash,
));
});
return $app->routes->any('/:lang' => {lang => $defaultLang});
}
sub _loadi18n {
my $langsubdir = shift;
my $lang = shift;
my $log = shift;
my $langFile = "$langsubdir/$lang.lang";
my $TXT;
if ( -f $langFile ) {
$TXT = Config::Tiny->read($langFile, 'utf8')->{'_'};
if ($@ || !defined $TXT) {
$log->error("error reading file $langFile: $@");
}
}
else {
$log->warn("language file $langFile does not exist!");
}
return $TXT;
}
1
__END__
=encoding utf8
=head1 NAME
JWebmail::Plugin::I18N2 - Custom Made I18N Support an alternative to JWebmail::Plugin::I18N
=head1 SYNOPSIS
$app->plugin('I18N2', {
languages => [qw(en de es)],
default_language => 'en',
directory => '/path/to/language/files/',
})
# in your controller
$c->l('hello')
# in your templates
<%= l 'hello' %>
@@ de.lang
login = anmelden
userid = nuzerkennung
passwd = passwort
failed = fehlgeschlagen
about = über
example.com/de/myroute # $c->stash('lang') eq 'de'
example.com/myroute # $c->stash('lang') eq $defaultLanguage
# on example.com/de/myroute
url_for('my_other_route') #=> example.com/de/my_other_route
url_for('my_other_route', lang => 'es') #=> example.com/es/my_other_route
=head1 DESCRIPTION
L<JWebmail::Plugin::I18N2> provides I18N support.
The language will be taken from the first path segment of the url.
Be carefult with colliding routes.
Mojolicious::Controller::url_for is patched so that the current language will be kept for
router named urls.
=head1 OPTIONS
=head2 default_language
The default language when no other information is provided.
=head2 directory
Directory to look for language files.
=head2 languages
List of allowed languages.
Files of the pattern "$lang.lang" will be looked for.
=head1 HELPERS
=head2 l
This is used for your translations.
$c->l('hello')
$app->helper('hello')->()
=cut
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