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package TgLib::Api;
use strict;
use warnings;
use JSON qw<encode_json decode_json>;
use HTTP::Request;
use HTTP::Request::Common qw<POST>;
use LWP::UserAgent;
use Data::Dumper;
use parent 'Exporter';
our @EXPORT = qw<new>;
sub new {
my ($class, $token, $logger) = @_;
return bless { uri => "https://api.telegram.org/bot$token",
file_uri => "https://api.telegram.org/file/bot$token",
ua => LWP::UserAgent->new,
logger => $logger }, $class;
}
sub get_updates {
my ($self, $timeout, $offset) = @_;
my $logger = $self->{'logger'};
my $uri = "$self->{'uri'}/getUpdates?timeout=$timeout";
$uri = $uri . "&offset=$offset" if $offset;
my $req = HTTP::Request->new("GET", $uri);
$logger->debug("Request: " . Dumper($req));
my $resp = $self->{'ua'}->request($req);
$logger->debug("Response: " . Dumper($resp));
if ($resp->is_error()) {
die $resp->message;
} else {
my $updates = decode_json($resp->content)->{'result'};
# TODO why does `decode_json` not do this work?
map { utf8::encode($_->{'message'}{'text'}) if exists $_->{'message'}{'text'} } @$updates;
$logger->info(sprintf "Received %d updates from chats %s\n",
scalar(@$updates),
join(", ", map { $_->{'message'}{'chat'}{'id'} } @$updates))
if @$updates;
return $updates;
}
}
sub send_message {
my ($self, $chat_id, $text) = @_;
my $logger = $self->{'logger'};
my $uri = "$self->{'uri'}/sendMessage";
$logger->info("Sending to $chat_id: '$text'\n");
utf8::decode($text) unless utf8::is_utf8($text);
my $content = encode_json {'chat_id' => $chat_id, 'text' => $text};
my $req = HTTP::Request->new("POST", $uri,
["Content-Type", "application/json"], $content);
$logger->debug(sprintf "Request:\n%s\n", Dumper($req));
my $resp = $self->{'ua'}->request($req);
$logger->debug(sprintf "Response:\n%s\n", Dumper($resp));
if ($resp->is_error()) {
die $resp->message;
}
}
sub send_document {
my ($self, $chat_id, $photo, $caption) = @_;
my $logger = $self->{'logger'};
my $uri = "$self->{'uri'}/sendDocument";
my $content = {'chat_id' => $chat_id,
'caption' => $caption,
'document' => [undef, 'cosa.png', Content => $photo]};
my $req = POST $uri, 'Content-Type' => "multipart/form-data", 'Content' => $content;
$logger->info("Sending photo to $chat_id\n");
$logger->debug(sprintf "Request:\n%s\n", Dumper($req)); # DEBUG
my $resp = $self->{'ua'}->request($req);
$logger->debug(sprintf "Response:\n%s\n", Dumper($resp));
if ($resp->is_error()) {
print decode_json($resp->content)->{'description'};
die $resp->message;
}
}
sub get_file {
my ($self, $file_id) = @_;
my $logger = $self->{'logger'};
my $uri = "$self->{'uri'}/getFile";
my $content = encode_json {'file_id' => $file_id};
my $req = HTTP::Request->new("POST", $uri,
["Content-Type", "application/json"], $content);
$logger->debug(sprintf "Request:\n%s\n", Dumper($req));
my $resp = $self->{'ua'}->request($req);
$logger->debug(sprintf "Response:\n%s\n", Dumper($resp));
if ($resp->is_error()) {
die $resp->message;
} else {
my $file_path = decode_json($resp->content)->{'result'}{'file_path'};
$logger->info("Getting file $file_id (file_path: $file_path)...\n");
my $uri = "$self->{'file_uri'}/$file_path";
my $req = HTTP::Request->new("GET", $uri);
$logger->debug(sprintf "Request:\n%s\n", Dumper($req));
my $resp = $self->{'ua'}->request($req);
$logger->debug(sprintf "Response:\n%s\n", Dumper($resp));
if ($resp->is_error()) {
die $resp->content;
} else {
return $resp->content;
}
}
}
1;
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