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pbot/lib/PBot/Plugin/Wolfram.pm
2023-04-13 17:01:23 -07:00

63 lines
2.0 KiB
Perl

# File: Wolfram.pm
#
# Purpose: Query Wolfram|Alpha's Short Answers API.
# SPDX-FileCopyrightText: 2021-2023 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
package PBot::Plugin::Wolfram;
use parent 'PBot::Plugin::Base';
use PBot::Imports;
use LWP::UserAgent::Paranoid;
use URI::Escape qw/uri_escape_utf8/;
sub initialize($self, %conf) {
# add default registry entry for `wolfram.appid`
$self->{pbot}->{registry}->add_default('text', 'wolfram', 'appid', '');
# make `wolfram.appid` registry entry private by default
$self->{pbot}->{registry}->set_default('wolfram', 'appid', 'private', 1);
# add wolfram command
$self->{pbot}->{commands}->add(
name => 'wolfram',
help => 'Queries Wolfram|Alpha Short Answers API',
subref => sub { $self->cmd_wolfram(@_) },
);
}
sub unload($self) {
$self->{pbot}->{commands}->remove('wolfram');
}
sub cmd_wolfram($self, $context) {
return "Usage: wolfram <query>\n" if not length $context->{arguments};
my $appid = $self->{pbot}->{registry}->get_value('wolfram', 'appid');
if (not length $appid) {
return "$context->{nick}: Registry item wolfram.appid is not set. See https://developer.wolframalpha.com/portal/myapps to get an appid.";
}
my $question = uri_escape_utf8 $context->{arguments};
my $units = uri_escape_utf8 ($self->{pbot}->{users}->get_user_metadata($context->{from}, $context->{hostmask}, 'units') // 'metric');
my $ua = LWP::UserAgent::Paranoid->new(agent => 'Mozilla/5.0', request_timeout => 10);
my $response = $ua->get("https://api.wolframalpha.com/v1/result?appid=$appid&i=$question&units=$units&timeout=10");
if ($response->is_success) {
return "$context->{nick}: " . $response->decoded_content;
}
elsif ($response->code == 501) {
return "$context->{nick}: I don't know what that means.";
}
else {
return "$context->{nick}: Failed to query Wolfram|Alpha: " . $response->status_line;
}
}
1;