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338 lines
12 KiB
Perl
338 lines
12 KiB
Perl
# File: Wttr.pm
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#
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# Purpose: Weather command using Wttr.in.
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# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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package PBot::Plugin::Wttr;
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use parent 'PBot::Plugin::Base';
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use PBot::Imports;
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use PBot::Core::Utils::LWPUserAgentCached;
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use JSON;
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use URI::Escape qw/uri_escape_utf8/;
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sub initialize {
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my ($self, %conf) = @_;
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$self->{pbot}->{commands}->add(
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name => 'wttr',
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help => 'Provides weather information via wttr.in',
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subref => sub { $self->cmd_wttr(@_) },
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);
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}
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sub unload {
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my $self = shift;
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$self->{pbot}->{commands}->remove('wttr');
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}
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sub cmd_wttr {
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my ($self, $context) = @_;
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my $arguments = $context->{arguments};
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my @wttr_options = (
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'default',
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'all',
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'conditions',
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'forecast',
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'feelslike',
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'uvindex',
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'visibility',
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'dewpoint',
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'heatindex',
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'cloudcover',
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'wind',
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'sun',
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'sunhours',
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'moon',
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'chances',
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'snowfall',
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'location',
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'qlocation',
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'time',
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'population',
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);
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my $usage = "Usage: wttr (<location> | -u <user account>) [" . join(' ', map { "-$_" } @wttr_options) . "]; to have me remember your location, use `my location <location>`.";
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my %options;
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my ($opt_args, $opt_error) = $self->{pbot}->{interpreter}->getopt(
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$arguments,
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\%options,
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['bundling_override', 'ignorecase_always'],
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'u=s',
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'h',
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@wttr_options,
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);
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return "/say $opt_error -- $usage" if defined $opt_error;
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return $usage if exists $options{h};
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$arguments = "@$opt_args";
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if (defined $options{u}) {
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my $username = delete $options{u};
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my $userdata = $self->{pbot}->{users}->{storage}->get_data($username);
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return "No such user account $username." if not defined $userdata;
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return "User account does not have `location` set." if not exists $userdata->{location};
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$arguments = $userdata->{location};
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} else {
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if (not length $arguments) {
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$arguments = $self->{pbot}->{users}->get_user_metadata($context->{from}, $context->{hostmask}, 'location') // '';
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}
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}
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if (not length $arguments) { return $usage; }
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$options{default} = 1 if not keys %options;
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if (defined $options{all}) {
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%options = ();
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map { my $opt = $_; $opt =~ s/\|.*$//; $options{$opt} = 1 } @wttr_options;
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delete $options{all};
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delete $options{default};
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}
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my @opts = keys %options;
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return $self->get_wttr($arguments, \@opts, \@wttr_options);
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}
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sub get_wttr {
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my ($self, $location, $options, $order) = @_;
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my %cache_opt = (
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'namespace' => 'wttr',
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'default_expires_in' => 3600
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);
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my $location_uri = uri_escape_utf8 $location;
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my $ua = PBot::Core::Utils::LWPUserAgentCached->new(\%cache_opt, timeout => 30);
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my $response = $ua->get("http://wttr.in/$location_uri?format=j1&m");
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my $json;
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if ($response->is_success) {
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$json = $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 $wttr = eval { decode_json $json };
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if ($@) {
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# error decoding json so it must not be json -- return as-is
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$@ = undef;
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my $error = $json;
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if ($error =~ /^Unknown location/) {
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$error = "Unknown location: $location";
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}
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return $error;
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}
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# title-case location
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$location = ucfirst lc $location;
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$location =~ s/( |\.)(\w)/$1 . uc $2/ge;
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$location =~ s/United States of America/USA/;
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my $result = "$location: ";
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my $c = $wttr->{'current_condition'}->[0];
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my $w = $wttr->{'weather'}->[0];
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my $h = $w->{'hourly'}->[0];
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my ($obsdate, $obstime) = split / /, $c->{'localObsDateTime'}, 2;
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my ($obshour, $obsminute) = split /:/, $obstime;
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if ($obsminute =~ s/ PM$//) {
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$obshour += 12;
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} else {
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$obsminute =~ s/ AM$//;
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}
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if (@$options == 1 and $options->[0] eq 'default') {
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push @$options, ('chances', 'time');
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}
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foreach my $option (@$order) {
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next if not grep { $_ eq $option } @$options;
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given ($option) {
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when ('default') {
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$result .= "Currently: $c->{'weatherDesc'}->[0]->{'value'}: $c->{'temp_C'}C/$c->{'temp_F'}F";
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if ($c->{'FeelsLikeC'} != $c->{'temp_C'}) {
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$result .= " (Feels like $c->{'FeelsLikeC'}C/$c->{'FeelsLikeF'}F); ";
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} else {
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$result .= '; ';
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}
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$result .= "Forecast: High: $w->{maxtempC}C/$w->{maxtempF}F, Low: $w->{mintempC}C/$w->{mintempF}F; ";
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my $conditions = "Condition changes: ";
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my $last_condition = $c->{'weatherDesc'}->[0]->{'value'};
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my $sep = '';
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foreach my $hour (@{$w->{'hourly'}}) {
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my $condition = $hour->{'weatherDesc'}->[0]->{'value'};
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my $temp = "$hour->{FeelsLikeC}C/$hour->{FeelsLikeF}F";
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my $time = sprintf "%04d", $hour->{'time'};
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$time =~ s/(\d{2})$/:$1/;
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if ($condition ne $last_condition) {
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my ($hour, $minute) = split /:/, $time;
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if (($hour > $obshour) or ($hour == $obshour and $minute >= $obsminute)) {
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$conditions .= "$sep$time: $condition ($temp)";
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$sep = ' -> ';
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$last_condition = $condition;
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}
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}
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}
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$result .= "$conditions; " if length $sep;
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$result .= "Cloud cover: $c->{'cloudcover'}%; Visibility: $c->{'visibility'}km; ";
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$result .= "Wind: $c->{'windspeedKmph'}kph/$c->{'windspeedMiles'}mph $c->{'winddirDegree'}°/$c->{'winddir16Point'}; ";
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$result .= "Humidity: $c->{'humidity'}%; Precip: $c->{'precipMM'}mm; Pressure: $c->{'pressure'}hPa; UV Index: $c->{'uvIndex'}";
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$result .= ";\n";
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}
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when ('conditions') {
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$result .= "Current conditions: $c->{'weatherDesc'}->[0]->{'value'}: $c->{'temp_C'}C/$c->{'temp_F'}F";
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if ($c->{'FeelsLikeC'} != $c->{'temp_C'}) {
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$result .= " (Feels like $c->{'FeelsLikeC'}C/$c->{'FeelsLikeF'}F); ";
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} else {
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$result .= '; ';
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}
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$result .= "Cloud cover: $c->{'cloudcover'}%; Visibility: $c->{'visibility'}km; ";
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$result .= "Wind: $c->{'windspeedKmph'}kph/$c->{'windspeedMiles'}mph $c->{'winddirDegree'}°/$c->{'winddir16Point'}; ";
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$result .= "Humidity: $c->{'humidity'}%; Precip: $c->{'precipMM'}mm; Pressure: $c->{'pressure'}hPa; UV Index: $c->{'uvIndex'};\n";
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}
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when ('forecast') {
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$result .= "Hourly forecast: ";
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my ($last_temp, $last_condition, $sep) = ('', '', '');
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foreach my $hour (@{$wttr->{'weather'}->[0]->{'hourly'}}) {
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my $temp = "$hour->{FeelsLikeC}C/$hour->{FeelsLikeF}F";
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my $condition = $hour->{'weatherDesc'}->[0]->{'value'};
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my $text = '';
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if ($temp ne $last_temp) {
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$text .= $temp;
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$last_temp = $temp;
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}
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if ($condition ne $last_condition) {
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$text .= ' ' if length $text;
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$text .= "($condition)";
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$last_condition = $condition;
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}
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if (length $text) {
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my $time = sprintf '%04d', $hour->{'time'};
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$time =~ s/(\d{2})$/:$1/;
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my ($hour, $minute) = split /:/, $time;
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if (($hour > $obshour) or ($hour == $obshour and $minute >= $obsminute)) {
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$result .= "$sep $time: $text";
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$sep = ', ';
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}
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}
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}
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$result .= ";\n";
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}
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when ('chances') {
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$result .= 'Chances of: ';
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$result .= 'Fog: ' . $h->{'chanceoffog'} . '%, ' if $h->{'chanceoffog'};
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$result .= 'Frost: ' . $h->{'chanceoffrost'} . '%, ' if $h->{'chanceoffrost'};
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$result .= 'High temp: ' . $h->{'chanceofhightemp'} . '%, ' if $h->{'chanceofhightemp'};
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$result .= 'Overcast: ' . $h->{'chanceofovercast'} . '%, ' if $h->{'chanceofovercast'};
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$result .= 'Rain: ' . $h->{'chanceofrain'} . '%, ' if $h->{'chanceofrain'};
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$result .= 'Remaining dry: ' . $h->{'chanceofremdry'} . '%, ' if $h->{'chanceofremdry'};
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$result .= 'Snow: ' . $h->{'chanceofsnow'} . '%, ' if $h->{'chanceofsnow'};
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$result .= 'Sunshine: ' . $h->{'chanceofsunshine'} . '%, ' if $h->{'chanceofsunshine'};
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$result .= 'Thunder: ' . $h->{'chanceofthunder'} . '%, ' if $h->{'chanceofthunder'};
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$result .= 'Windy: ' . $h->{'chanceofwindy'} . '%, ' if $h->{'chanceofwindy'};
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$result =~ s/,\s+$/;\n/;
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}
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when ('wind') {
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$result .= "Wind: $c->{'windspeedKmph'}kph/$c->{'windspeedMiles'}mph $c->{'winddirDegree'}°/$c->{'winddir16Point'}, ";
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$result .= "gust: $h->{'WindGustKmph'}kph/$h->{'WindGustMiles'}mph, chill: $h->{'WindChillC'}C/$h->{'WindChillF'}F;\n";
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}
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when ('qlocation') {
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my $l = $wttr->{'request'}->[0];
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$result .= "Query location: $l->{'query'} ($l->{'type'});\n";
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}
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when ('dewpoint') { $result .= "Dew point: $h->{'DewPointC'}C/$h->{'DewPointF'}F;\n"; }
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when ('feelslike') { $result .= "Feels like: $h->{'FeelsLikeC'}C/$h->{'FeelsLikeF'}F;\n"; }
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when ('heatindex') { $result .= "Heat index: $h->{'HeatIndexC'}C/$h->{'HeatIndexF'}F;\n"; }
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when ('moon') {
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my $a = $w->{'astronomy'}->[0];
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$result .= "Moon: phase: $a->{'moon_phase'}, illumination: $a->{'moon_illumination'}%, rise: $a->{'moonrise'}, set: $a->{'moonset'};\n";
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}
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when ('sun') {
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my $a = $w->{'astronomy'}->[0];
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$result .= "Sun: rise: $a->{'sunrise'}, set: $a->{'sunset'};\n";
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}
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when ('sunhours') { $result .= "Hours of sun: $w->{'sunHour'};\n"; }
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when ('snowfall') { $result .= "Total snow: $w->{'totalSnow_cm'}cm;\n"; }
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when ('uvindex') { $result .= "UV Index: $c->{'uvIndex'};\n"; }
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when ('visibility') { $result .= "Visibility: $c->{'visibility'}km;\n"; }
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when ('cloudcover') { $result .= "Cloud cover: $c->{'cloudcover'}%;\n"; }
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when ('time') { $result .= "Observed: $c->{'localObsDateTime'};\n"; }
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when ('location') {
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if (exists $wttr->{nearest_area}) {
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my $areaName = $wttr->{nearest_area}->[0]->{areaName}->[0]->{value};
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my $region = $wttr->{nearest_area}->[0]->{region}->[0]->{value};
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my $country = $wttr->{nearest_area}->[0]->{country}->[0]->{value};
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my $location = '';
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$location .= "$areaName, " if length $areaName;
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$location .= "$region, " if length $region and $region ne $areaName;
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$location .= "$country, " if length $country;
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$location =~ s/, $//;
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$result .= "Observation location: $location;\n";
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} else {
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$result .= "Query location: $location;\n";
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}
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}
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when ('population') {
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my $population = $wttr->{nearest_area}->[0]->{population};
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$population =~ s/(\d)(?=(\d{3})+(\D|$))/$1\,/g;
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$result .= "Population: $population;\n";
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}
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default { $result .= "Option $_ coming soon;\n" unless lc $_ eq 'u'; }
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}
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}
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$result =~ s/;\s+$//;
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return $result;
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}
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1;
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