Files
aleesa-telegram/lib/weather.pm
eleksir a1d238949f Refactor code
* move plugins out of botlib.pm
* use make_path instead of mkpath
* squash some bugs
* update .gitignore
* use more correct randomizer, rather than perl own rand()
* coding style fixes
2021-02-06 19:06:59 +03:00

201 lines
5.9 KiB
Perl

package weather;
use 5.018;
use strict;
use warnings;
use utf8;
use open qw (:std :utf8);
use English qw ( -no_match_vars );
use Carp qw (carp cluck);
use DB_File;
use Digest::MD5 qw (md5_base64);
use File::Path qw (make_path);
use HTTP::Tiny;
use JSON::XS;
use conf qw (loadConf);
use util qw (trim urlencode);
use version; our $VERSION = qw (1.0);
use Exporter qw (import);
our @EXPORT_OK = qw (weather);
my $c = loadConf ();
sub weather {
my $city = shift;
$city = trim $city;
return 'Мне нужно ИМЯ города.' if ($city eq '');
return 'Длинновато для названия города.' if (length ($city) > 80);
$city = ucfirst $city;
my $w = __weather ($city);
my $reply;
if ($w) {
if ($w->{temperature_min} == $w->{temperature_max}) {
$reply = sprintf ("Погода в городе %s, %s:\n%s, ветер %s %s м/c, температура %s°C, ощущается как %s°C, относительная влажность %s%%, давление %s мм.рт.с",
$w->{name},
$w->{country},
ucfirst ($w->{description}),
$w->{wind_direction},
$w->{wind_speed},
$w->{temperature_min},
$w->{temperature_feelslike},
$w->{humidity},
$w->{pressure}
);
} else {
$reply = sprintf ("Погода в городе %s, %s:\n%s, ветер %s %s м/c, температура %s-%s°C, ощущается как %s°C, относительная влажность %s%%, давление %s мм.рт.ст",
$w->{name},
$w->{country},
ucfirst ($w->{description}),
$w->{wind_direction},
$w->{wind_speed},
$w->{temperature_min},
$w->{temperature_max},
$w->{temperature_feelslike},
$w->{humidity},
$w->{pressure}
);
}
} else {
$reply = "Я не знаю, какая погода в $city";
}
return $reply;
}
sub __weather {
my $city = shift;
$city = urlencode $city;
my $id = md5_base64 $city;
my $appid = $c->{openweathermap}->{appid};
my $cachedir = $c->{openweathermap}->{cachedir};
my $cachetimefile = $cachedir . '/openweathermap.Id-Timestamp.db';
my $cachedatafile = $cachedir . '/openweathermap.Id-Data.db';
my $now = time ();
my $fc;
my $w;
unless (-d $cachedir) {
make_path ($cachedir) || do {
cluck "[ERROR] Unable to create $cachedir: $OS_ERROR";
return;
};
}
# attach to cache data
tie my %cachetime, 'DB_File', $cachetimefile or do {
carp "[ERROR] Something nasty happen when cachetime ties to its data: $OS_ERROR";
return undef;
};
tie my %cachedata, 'DB_File', $cachedatafile or do {
carp "[ERROR] Something nasty happen when cachedata ties to its data: $OS_ERROR";
return undef;
};
# lookup cache
if (defined ($cachetime{$id}) && ($now - $cachetime{$id}) < 10800) {
$fc = decode_json $cachedata{$id};
} else {
my $r;
# try 3 times and giveup
for (1..3) {
my $http = HTTP::Tiny->new (timeout => 3);
$r = $http->get (sprintf ('http://api.openweathermap.org/data/2.5/weather?q=%s&lang=ru&APPID=%s', $city, $appid));
if ($r->{success}) {
last;
}
sleep 2;
}
# all 3 times can give error, so check it here
if ($r->{success}) {
$fc = eval {
decode_json $r->{content};
};
if ($EVAL_ERROR) {
cluck "[WARN] openweathermap returns corrupted json: $EVAL_ERROR";
untie %cachetime;
untie %cachedata;
return undef;
};
$cachetime{$id} = $now;
$cachedata{$id} = encode_json $fc;
} else {
cluck sprintf 'Server return status %s with message: %s', $r->{status}, $r->{reason};
untie %cachetime;
untie %cachedata;
return undef;
}
}
untie %cachetime;
untie %cachedata;
# TODO: check all of this for existance
$w->{'name'} = $fc->{name};
$w->{'state'} = $fc->{state};
$w->{'country'} = $fc->{sys}->{country};
$w->{'longitude'} = $fc->{coord}->{lon};
$w->{'latitude'} = $fc->{coord}->{lat};
$w->{'temperature_min'} = int ($fc->{main}->{temp_min} - 273.15);
$w->{'temperature_max'} = int ($fc->{main}->{temp_max} - 273.15);
$w->{'temperature_feelslike'} = int ($fc->{main}->{feels_like} - 273.15);
$w->{'humidity'} = $fc->{main}->{humidity};
$w->{'pressure'} = int ($fc->{main}->{pressure} * 0.75006375541921);
$w->{'description'} = $fc->{weather}->[0]->{description};
$w->{'wind_speed'} = $fc->{wind}->{speed};
$w->{'wind_direction'} = 'разный';
my $dir = int ($fc->{wind}->{deg} + 0);
if ($dir == 0) {
$w->{'wind_direction'} = 'северный';
} elsif ($dir > 0 && $dir <= 30) {
$w->{'wind_direction'} = 'северо-северо-восточный';
} elsif ($dir > 30 && $dir <= 60) {
$w->{'wind_direction'} = 'северо-восточный';
} elsif ($dir > 60 && $dir < 90) {
$w->{'wind_direction'} = 'восточно-северо-восточный';
} elsif ($dir == 90) {
$w->{'wind_direction'} = 'восточный';
} elsif ($dir > 90 && $dir <= 120) {
$w->{'wind_direction'} = 'восточно-юго-восточный';
} elsif ($dir > 120 && $dir <= 150) {
$w->{'wind_direction'} = 'юговосточный';
} elsif ($dir > 150 && $dir < 180) {
$w->{'wind_direction'} = 'юго-юго-восточный';
} elsif ($dir == 180) {
$w->{'wind_direction'} = 'южный';
} elsif ($dir > 180 && $dir <= 210) {
$w->{'wind_direction'} = 'юго-юго-западный';
} elsif ($dir > 210 && $dir <= 240) {
$w->{'wind_direction'} = 'юго-западный';
} elsif ($dir > 240 && $dir < 270) {
$w->{'wind_direction'} = 'западно-юго-западный';
} elsif ($dir == 270) {
$w->{'wind_direction'} = 'западный';
} elsif ($dir > 270 && $dir <= 300) {
$w->{'wind_direction'} = 'западно-северо-западный';
} elsif ($dir > 300 && $dir <= 330) {
$w->{'wind_direction'} = 'северо-западный';
} elsif ($dir > 330 && $dir < 360) {
$w->{'wind_direction'} = 'северо-северо-западный';
} elsif ($dir == 360) {
$w->{'wind_direction'} = 'северный';
}
return $w;
}
1;
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