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139 lines
3.7 KiB
Perl
139 lines
3.7 KiB
Perl
# File: Weather.pm
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# Author: pragma-
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#
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# Purpose: Weather command.
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package Plugins::Weather;
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use warnings;
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use strict;
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use feature 'unicode_strings';
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use PBot::Utils::LWPUserAgentCached;
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use XML::LibXML;
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use Getopt::Long qw(GetOptionsFromString);
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use Carp ();
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sub new {
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Carp::croak("Options to " . __FILE__ . " should be key/value pairs, not hash reference") if ref $_[1] eq 'HASH';
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my ($class, %conf) = @_;
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my $self = bless {}, $class;
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$self->initialize(%conf);
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return $self;
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}
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sub initialize {
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my ($self, %conf) = @_;
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$self->{pbot} = $conf{pbot} // Carp::croak("Missing pbot reference to " . __FILE__);
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$self->{pbot}->{commands}->register(sub { $self->weathercmd(@_) }, "weather", 0);
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}
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sub unload {
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my $self = shift;
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$self->{pbot}->{commands}->unregister("weather");
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}
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sub weathercmd {
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my ($self, $from, $nick, $user, $host, $arguments, $stuff) = @_;
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my $usage = "Usage: weather [-u <user account>] [location]";
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Getopt::Long::Configure("bundling");
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my $getopt_error;
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local $SIG{__WARN__} = sub {
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$getopt_error = shift;
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chomp $getopt_error;
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};
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my ($user_override, $show_usage);
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my ($ret, $args) = GetOptionsFromString($arguments,
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'u=s' => \$user_override,
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'h' => \$show_usage
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);
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return $usage if $show_usage;
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return "/say $getopt_error -- $usage" if defined $getopt_error;
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$arguments = "@$args";
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my $hostmask = defined $user_override ? $user_override : "$nick!$user\@$host";
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my $location_override = $self->{pbot}->{users}->get_loggedin_user_metadata($from, $hostmask, 'location') // '';
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$arguments = $location_override if not length $arguments;
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if (defined $user_override and not length $location_override) {
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return "No location set or user account does not exist.";
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}
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if (not length $arguments) {
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return $usage;
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}
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return $self->get_weather($arguments);
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}
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sub get_weather {
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my ($self, $location) = @_;
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my %cache_opt = (
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'namespace' => 'accuweather',
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'default_expires_in' => 3600
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);
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my $ua = PBot::Utils::LWPUserAgentCached->new(\%cache_opt, timeout => 10);
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my $response = $ua->get("http://rss.accuweather.com/rss/liveweather_rss.asp?metric=0&locCode=$location");
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my $xml;
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if ($response->is_success) {
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$xml = $response->decoded_content;
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} else {
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return "Failed to fetch weather data: " . $response->status_line;
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}
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my $dom = XML::LibXML->load_xml(string => $xml);
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my $result = '';
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foreach my $channel ($dom->findnodes('//channel')) {
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my $title = $channel->findvalue('./title');
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my $description = $channel->findvalue('./description');
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if ($description eq 'Invalid Location') {
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return "Location $location not found. Use \"<city>, <country abbrev>\" (e.g. \"paris, fr\") or a US Zip Code or \"<city>, <state abbrev>, US\" (e.g., \"austin, tx, us\").";
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}
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$title =~ s/ - AccuW.*$//;
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$result .= "Weather for $title: ";
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}
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foreach my $item ($dom->findnodes('//item')) {
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my $title = $item->findvalue('./title');
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my $description = $item->findvalue('./description');
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if ($title =~ m/^Currently:/) {
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$title = $self->fix_temps($title);
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$result .= "$title; ";
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}
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if ($title =~ m/Forecast$/) {
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$description =~ s/ <img.*$//;
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$description = $self->fix_temps($description);
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$result .= "Forecast: $description";
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last;
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}
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}
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return $result;
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}
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sub fix_temps {
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my ($self, $text) = @_;
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$text =~ s|(-?\d+)\s*F|my $f = $1; my $c = ($f - 32 ) * 5 / 9; $c = sprintf("%.1d", $c); "${f}F/${c}C"|eg;
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return $text;
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}
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1;
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