package Subtitle::Format::SSA::Header;

use strict;
use warnings;
use utf8;

use overload
  '""' => \&to_string,
;

sub new {
  my ($class) = @_;
  my $self = {
   name   => undef,
   value  => '',
  };
  return bless($self, $class);
}

sub hash_key {
  my ($self) = @_;
  my $key = lc($self->{name});
  $key =~ s{\s+}{}go;
  return $key;
}

sub parse {
  my ($self, $line) = @_;

  return unless $line;
  return if $line =~ m{^ \s* ;}xo; # comment

  chomp $line;
  $line =~ s{^\s+}{}o;
  $line =~ s{\s+$}{}o;
  my ($name, $value) = split /\s*:\s*/, $line, 2;

  $self->{name}  = $name;
  $self->{value} = $value;
  return 1;
}

sub to_string {
  my ($self) = @_;

  return $self->{name} . ': ' . $self->{value};
}

1;