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package WWW::FairViewer::Channels;
use utf8;
use 5.014;
use warnings;
=head1 NAME
WWW::FairViewer::Channels - Channels interface.
=head1 SYNOPSIS
use WWW::FairViewer;
my $obj = WWW::FairViewer->new(%opts);
my $videos = $obj->channels_from_categoryID($category_id);
=head1 SUBROUTINES/METHODS
=cut
sub _make_channels_url {
my ($self, %opts) = @_;
return $self->_make_feed_url('channels', %opts);
}
sub videos_from_channel_id {
my ($self, $channel_id) = @_;
return $self->_get_results($self->_make_feed_url("channels/$channel_id/videos"));
}
sub videos_from_username {
my ($self, $channel_id) = @_;
return $self->_get_results($self->_make_feed_url("channels/$channel_id/videos"));
}
=head2 popular_videos($channel_id)
Get the most popular videos for a given channel ID.
=cut
sub popular_videos {
my ($self, $channel_id) = @_;
return $self->_get_results($self->_make_feed_url("channels/$channel_id/videos", sort_by => 'popular'));
}
=head2 channels_from_categoryID($category_id)
Return the YouTube channels associated with the specified category.
=head2 channels_info($channel_id)
Return information for the comma-separated list of the YouTube channel ID(s).
=head1 Channel details
For all functions, C<$channels->{results}{items}> contains:
=cut
{
no strict 'refs';
foreach my $method (
{
key => 'categoryId',
name => 'channels_from_guide_category',
},
{
key => 'id',
name => 'channels_info',
},
{
key => 'forUsername',
name => 'channels_from_username',
},
) {
*{__PACKAGE__ . '::' . $method->{name}} = sub {
my ($self, $channel_id) = @_;
return $self->_get_results($self->_make_channels_url($method->{key} => $channel_id));
};
}
foreach my $part (qw(id contentDetails statistics topicDetails)) {
*{__PACKAGE__ . '::' . 'channels_' . $part} = sub {
my ($self, $id) = @_;
return $self->_get_results($self->_make_channels_url(id => $id, part => $part));
};
}
}
=head2 my_channel()
Returns info about the channel of the current authenticated user.
=cut
sub my_channel {
my ($self) = @_;
$self->get_access_token() // return;
return $self->_get_results($self->_make_channels_url(part => 'snippet', mine => 'true'));
}
=head2 my_channel_id()
Returns the channel ID of the current authenticated user.
=cut
sub my_channel_id {
my ($self) = @_;
state $cache = {};
if (exists $cache->{id}) {
return $cache->{id};
}
$cache->{id} = undef;
my $channel = $self->my_channel() // return;
$cache->{id} = $channel->{results}{items}[0]{id} // return;
}
=head2 channels_my_subscribers()
Retrieve a list of channels that subscribed to the authenticated user's channel.
=cut
sub channels_my_subscribers {
my ($self) = @_;
$self->get_access_token() // return;
return $self->_get_results($self->_make_channels_url(mySubscribers => 'true'));
}
=head2 channel_id_from_username($username)
Return the channel ID for an username.
=cut
sub channel_id_from_username {
my ($self, $username) = @_;
# A channel's username (if it doesn't include spaces) is also valid in place of ucid.
if ($username =~ /\w/ and not $username =~ /\s/) {
return $username;
}
# TODO: resolve channel name to channel ID
return $username;
}
=head2 channel_title_from_id($channel_id)
Return the channel title for a given channel ID.
=cut
sub channel_title_from_id {
my ($self, $channel_id) = @_;
if ($channel_id eq 'mine') {
$channel_id = $self->my_channel_id();
}
my $info = $self->channels_info($channel_id // return) // return;
( ref($info) eq 'HASH'
and ref($info->{results}) eq 'HASH'
and ref($info->{results}{items}) eq 'ARRAY'
and ref($info->{results}{items}[0]) eq 'HASH')
? $info->{results}{items}[0]{snippet}{title}
: ();
}
=head2 channels_contentDetails($channelID)
=head2 channels_statistics($channelID);
=head2 channels_topicDetails($channelID)
=cut
=head1 AUTHOR
Trizen, C<< <echo dHJpemVuQHByb3Rvbm1haWwuY29tCg== | base64 -d> >>
Jesus, C<< <echo aGVja3llbEBoeXBlcmJvbGEuaW5mbw== | base64 -d> >>
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc WWW::FairViewer::Channels
=head1 LICENSE AND COPYRIGHT
Copyright 2013-2015 Trizen.
Copyright 2020 Jesus E.
This program is free software; you can redistribute it and/or modify it
under the terms of either: the GNU General Public License as published
by the Free Software Foundation; or the Artistic License.
See L<http://dev.perl.org/licenses/> for more information.
=cut
1; # End of WWW::FairViewer::Channels
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