94 lines
2.8 KiB
Perl
94 lines
2.8 KiB
Perl
package DDG::Goodie::CurrencyIn;
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# ABSTRACT: Return currency type(s) in given country
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# TODO: At the moment it return value only if user inputs the whole country name...
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# ...if user types "Salvador" instead of "El Salvador" then no results...
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# TODO: think about how often currency in countries changes?
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# Parser (for Wikipedia) is included in share directory...
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# In some countries there are more than one currency.
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# For that reason values in hash are stored as arrays. (loaded from .txt as comma separated values )
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# Example: %countries( "Zimbabwe"=>["A","B"], "Slovakia"=>["A"], ... )"
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# Working examples for queries:
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# What currency do I need in Egypt ?
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# What currency will I need for Zimbabwe
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# What is the currency used in Slovakia
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# currency in Russia
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# What type of currency do I need for Russia?
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use strict;
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use utf8;
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use DDG::Goodie;
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use Locale::SubCountry;
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use Text::Trim;
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use JSON::MaybeXS;
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zci is_cached => 1;
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zci answer_type => "currency_in";
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triggers any => 'currency', 'currencies';
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my $data = share('currencies.json')->slurp;
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my $countries = decode_json($data);
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sub clear_country_name {
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my $txt = shift;
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$txt =~ s/^\?$|\?$//g; # Query may end with "?". If so take it away.
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return trim($txt);
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}
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handle remainder => sub {
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if (/^.*(?:in|of|for)(?:\sthe)?\s(.*?)$/i) {
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my $country = clear_country_name(lc($1)); # Clear country name - white spaces, question mark..
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# handle two-letter country codes
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if ($country =~ /^[a-z]{2}$/i) {
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my $loc;
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eval { $loc = Locale::SubCountry->new(uc($country)) };
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return if $@ || !$loc;
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$country = lc($loc->country);
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}
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return unless exists $countries->{$country};
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$country = $countries->{$country};
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my @currencies = @{$country->{"currencies"}};
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my $output_country = $country->{"ucwords"};
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if (scalar @currencies eq 1) {
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return $currencies[0]{"string"}, structured_answer => {
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input => [$output_country],
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operation => "Currency in",
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result => $currencies[0]{"string"}
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};
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} else {
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my %data = ();
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foreach my $key (keys @currencies) {
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$data{$currencies[$key]{"shortcode"}} = $currencies[$key]{"currency"};
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}
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return \%data, structured_answer => {
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templates => {
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group => 'list',
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options => {
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content => 'record',
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moreAt => 0
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}
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},
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data => {
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title => "Currencies in $output_country",
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record_data => \%data
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}
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};
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}
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}
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return;
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};
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1;
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