#!perl

use 5.010001;
use strict;
use warnings;
use Log::ger;
use Log::ger::Screen;

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2024-01-13'; # DATE
our $DIST = 'App-SubtitleUtils'; # DIST
our $VERSION = '0.013'; # VERSION

sub _strip {
    my $str = shift;
    $str =~ s/<.+?>//g;
    $str;
}

$/ = "";
my $num = 1;
while (my $para = <>) {
    unless ($para =~ /\A([0-9][^\n]+)(.+)/s) {
        log_trace "Paragraph does not begin with a digit, skipping";
        next;
    }

    my ($first_line, $subseq_lines) = ($1, $2);

    $first_line =~ s/[.]/,/g;

    print $num, "\n", _strip($first_line), _strip($subseq_lines);
    $num++;
}

# ABSTRACT: Convert .vtt to .srt
# PODNAME: vtt2srt

__END__

=pod

=encoding UTF-8

=head1 NAME

vtt2srt - Convert .vtt to .srt

=head1 VERSION

This document describes version 0.013 of vtt2srt (from Perl distribution App-SubtitleUtils), released on 2024-01-13.

=head1 SYNOPSIS

 % vtt2srt < INPUT.vtt > OUTPUT.srt

=head1 cut

=head1 HOMEPAGE

Please visit the project's homepage at L<https://metacpan.org/release/App-SubtitleUtils>.

=head1 SOURCE

Source repository is at L<https://github.com/perlancar/perl-App-SubtitleUtils>.

=head1 SEE ALSO

B<youtube-dl> downloads subtitles in .vtt format by default, but can be
instructed to download and/or convert subtitles to .srt format (see options:
C<--sub-format vtt>, C<--convert-subtitles srt>).

=head1 AUTHOR

perlancar <perlancar@cpan.org>

=head1 CONTRIBUTING


To contribute, you can send patches by email/via RT, or send pull requests on
GitHub.

Most of the time, you don't need to build the distribution yourself. You can
simply modify the code, then test via:

 % prove -l

If you want to build the distribution (e.g. to try to install it locally on your
system), you can install L<Dist::Zilla>,
L<Dist::Zilla::PluginBundle::Author::PERLANCAR>,
L<Pod::Weaver::PluginBundle::Author::PERLANCAR>, and sometimes one or two other
Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond
that are considered a bug and can be reported to me.

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2024, 2022, 2021, 2020 by perlancar <perlancar@cpan.org>.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=head1 BUGS

Please report any bugs or feature requests on the bugtracker website L<https://rt.cpan.org/Public/Dist/Display.html?Name=App-SubtitleUtils>

When submitting a bug or request, please include a test-file or a
patch to an existing test-file that illustrates the bug or desired
feature.

=cut