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pbot/Plugins/Wttr.pm
2020-02-01 14:34:58 -08:00

291 lines
8.6 KiB
Perl

# File: Wttr.pm
# Author: pragma-
#
# Purpose: Weather command using Wttr.in.
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
package Plugins::Wttr;
use warnings;
use strict;
use feature 'unicode_strings';
use utf8;
use feature 'switch';
no if $] >= 5.018, warnings => "experimental::smartmatch";
use PBot::Utils::LWPUserAgentCached;
use JSON;
use Getopt::Long qw(GetOptionsFromString);
use URI::Escape qw/uri_escape_utf8/;
use Carp ();
sub new {
Carp::croak("Options to " . __FILE__ . " should be key/value pairs, not hash reference") if ref $_[1] eq 'HASH';
my ($class, %conf) = @_;
my $self = bless {}, $class;
$self->initialize(%conf);
return $self;
}
sub initialize {
my ($self, %conf) = @_;
$self->{pbot} = $conf{pbot} // Carp::croak("Missing pbot reference to " . __FILE__);
$self->{pbot}->{commands}->register(sub { $self->wttrcmd(@_) }, "wttr", 0);
}
sub unload {
my $self = shift;
$self->{pbot}->{commands}->unregister("wttr");
}
sub wttrcmd {
my ($self, $from, $nick, $user, $host, $arguments, $stuff) = @_;
my @wttr_options = (
"conditions",
"forecast",
"feelslike",
"uvindex",
"visibility",
"dewpoint",
"heatindex",
"cloudcover",
"wind",
"sunrise|sunset",
"moon",
"chances",
"sunhours",
"snowfall",
"location",
"default",
"all",
);
my $usage = "Usage: wttr [-u <user account>] [location] [" . join(' ', map { "-$_" } @wttr_options) . "]";
Getopt::Long::Configure("bundling_override", "ignorecase_always");
my $getopt_error;
local $SIG{__WARN__} = sub {
$getopt_error = shift;
chomp $getopt_error;
};
my %options;
my ($ret, $args) = GetOptionsFromString($arguments,
\%options,
'u=s',
'h',
@wttr_options
);
return "/say $getopt_error -- $usage" if defined $getopt_error;
return $usage if exists $options{h};
$arguments = "@$args";
my $hostmask = defined $options{u} ? $options{u} : "$nick!$user\@$host";
my $location_override = $self->{pbot}->{users}->get_loggedin_user_metadata($from, $hostmask, 'location') // '';
$arguments = $location_override if not length $arguments;
if (defined $options{u} and not length $location_override) {
return "No location set or user account does not exist.";
}
delete $options{u};
if (not length $arguments) {
return $usage;
}
$options{default} = 1 if not keys %options;
if (defined $options{all}) {
%options = ();
map { my $opt = $_; $opt =~ s/\|.*$//; $options{$opt} = 1 } @wttr_options;
delete $options{all};
delete $options{default};
}
return $self->get_wttr($arguments, %options);
}
sub get_wttr {
my ($self, $location, %options) = @_;
my %cache_opt = (
'namespace' => 'wttr',
'default_expires_in' => 3600
);
my $location_uri = uri_escape_utf8 $location;
my $ua = PBot::Utils::LWPUserAgentCached->new(\%cache_opt, timeout => 10);
my $response = $ua->get("http://wttr.in/$location_uri?format=j1&m");
my $json;
if ($response->is_success) {
$json = $response->decoded_content;
} else {
return "Failed to fetch weather data: " . $response->status_line;
}
my $wttr = decode_json $json;
# title-case location
$location = ucfirst lc $location;
$location =~ s/( |\.)(\w)/$1 . uc $2/ge;
my $result = "Weather for $location: ";
my $c = $wttr->{'current_condition'}->[0];
my $w = $wttr->{'weather'}->[0];
my $h = $w->{'hourly'}->[0];
foreach my $option (sort keys %options) {
given ($option) {
when ('default') {
$result .= "Currently: $c->{'weatherDesc'}->[0]->{'value'}: $c->{'temp_C'}C/$c->{'temp_F'}F; ";
$result .= "Forecast: High: $w->{maxtempC}C/$w->{maxtempF}F, Low: $w->{mintempC}C/$w->{mintempF}F; ";
$result .= "Condition changes: ";
my $last_condition = $c->{'weatherDesc'}->[0]->{'value'};
my $sep = '';
foreach my $hour (@{ $w->{'hourly'} }) {
my $condition = $hour->{'weatherDesc'}->[0]->{'value'};
my $temp = "$hour->{FeelsLikeC}C/$hour->{FeelsLikeF}F";
my $time = sprintf "%04d", $hour->{'time'};
$time =~ s/(\d{2})$/:$1/;
if ($condition ne $last_condition) {
$result .= "$sep$time: $condition ($temp)";
$sep = '-> ';
$last_condition = $condition;
}
}
if ($sep eq '') {
$result .= $last_condition;
}
$result .= "; ";
}
when ('conditions') {
$result .= "Current conditions: $c->{'weatherDesc'}->[0]->{'value'}: $c->{'temp_C'}C/$c->{'temp_F'}F (Feels like $c->{'FeelsLikeC'}C/$c->{'FeelsLikeF'}F); ";
$result .= "Cloud cover: $c->{'cloudcover'}%; Visibility: $c->{'visibility'}km; ";
$result .= "Wind: $c->{'windspeedKmph'}kph/$c->{'windspeedMiles'}mph $c->{'winddirDegree'}°/$c->{'winddir16Point'}; ";
$result .= "Humidity: $c->{'humidity'}%; Precip: $c->{'precipMM'}mm; Pressure: $c->{'pressure'}hPa; UV Index: $c->{'uvIndex'}; ";
}
when ('forecast') {
$result .= "Hourly forecast: ";
my ($last_temp, $last_condition, $sep) = ('', '', '');
foreach my $hour (@{ $wttr->{'weather'}->[0]->{'hourly'} }) {
my $temp = "$hour->{FeelsLikeC}C/$hour->{FeelsLikeF}F";
my $condition = $hour->{'weatherDesc'}->[0]->{'value'};
my $text = '';
if ($temp ne $last_temp) {
$text .= $temp;
$last_temp = $temp;
}
if ($condition ne $last_condition) {
$text .= ' ' if length $text;
$text .= $condition;
$last_condition = $condition;
}
if (length $text) {
my $time = sprintf "%04d", $hour->{'time'};
$time =~ s/(\d{2})$/:$1/;
$result .= "$sep $time: $text";
$sep = ', ';
}
}
$result .= "; ";
}
when ('chances') {
$result .= "Chances of: ";
$result .= "Fog: $h->{'chanceoffog'}%, " if $h->{'chanceoffog'};
$result .= "Frost: $h->{'chanceoffrost'}%, " if $h->{'chanceoffrost'};
$result .= "High temp: $h->{'chanceofhightemp'}%, " if $h->{'chanceofhightemp'};
$result .= "Overcast: $h->{'chanceofovercast'}%, " if $h->{'chanceofovercast'};
$result .= "Rain: $h->{'chanceofrain'}%, " if $h->{'chanceofrain'};
$result .= "Remaining dry: $h->{'chanceofremdry'}%, " if $h->{'chanceofremdry'};
$result .= "Snow: $h->{'chanceofsnow'}%, " if $h->{'chanceofsnow'};
$result .= "Sunshine: $h->{'chanceofsunshine'}%, " if $h->{'chanceofsunshine'};
$result .= "Thunder: $h->{'chanceofthunder'}%, " if $h->{'chanceofthunder'};
$result .= "Windy: $h->{'chanceofwindy'}%, " if $h->{'chanceofwindy'};
$result =~ s/,\s+$/; /;
}
when ('wind') {
$result .= "Wind: $c->{'windspeedKmph'}kph/$c->{'windspeedMiles'}mph $c->{'winddirDegree'}°/$c->{'winddir16Point'}, ";
$result .= "gust: $h->{'WindGustKmph'}kph/$h->{'WindGustMiles'}mph, chill: $h->{'WindChillC'}C/$h->{'WindChillF'}F; ";
}
when ('location') {
my $l = $wttr->{'request'}->[0];
$result .= "Location: $l->{'query'} ($l->{'type'}); ";
}
when ('dewpoint') {
$result .= "Dew point: $h->{'DewPointC'}C/$h->{'DewPointF'}F; ";
}
when ('feelslike') {
$result .= "Feels like: $h->{'FeelsLikeC'}C/$h->{'FeelsLikeF'}F; ";
}
when ('heatindex') {
$result .= "Heat index: $h->{'HeatIndexC'}C/$h->{'HeatIndexF'}F; ";
}
when ('moon') {
my $a = $w->{'astronomy'}->[0];
$result .= "Moon: phase: $a->{'moon_phase'}, illumination: $a->{'moon_illumination'}%, rise: $a->{'moonrise'}, set: $a->{'moonset'}; ";
}
when ('sunrise') {
my $a = $w->{'astronomy'}->[0];
$result .= "Sun: rise: $a->{'sunrise'}, set: $a->{'sunset'}; ";
}
when ('sunhours') {
$result .= "Hours of sun: $w->{'sunHour'}; ";
}
when ('snowfall') {
$result .= "Total snow: $w->{'totalSnow_cm'}cm; ";
}
when ('uvindex') {
$result .= "UV Index: $c->{'uvIndex'}; ";
}
when ('visibility') {
$result .= "Visibility: $c->{'visibility'}km; ";
}
when ('cloudcover') {
$result .= "Cloud cover: $c->{'cloudcover'}%; ";
}
default {
$result .= "Option $_ coming soon; " unless lc $_ eq 'u';
}
}
}
$result =~ s/;\s+$//;
return $result;
}
1;