Add Open Location Codes support to search box.

CHANGELOG.md

@@ -1,6 +1,8 @@
 ## Releases
 
 * Unreleased
+    - New features:
+        - Add Open Location Codes support to search box. #3047
     - Bugfixes:
         - Fix issue with dashboard report CSV export. #3026
         - bin/update-schema PostgreSQL 12 compatibility. #3043

cpanfile

@@ -80,6 +80,7 @@ requires 'Error';
 requires 'FCGI'; # Required by e.g. Plack::Handler::FCGI
 requires 'File::Find';
 requires 'File::Path';
+requires 'Geo::OLC';
 requires 'Geography::NationalGrid',
     mirror => 'https://cpan.metacpan.org/';
 requires 'Getopt::Long::Descriptive', '0.105';

cpanfile.snapshot

@@ -3116,6 +3116,15 @@ DISTRIBUTIONS
       perl 5.014000
       strict 0
       warnings 0
+  Geo-OLC-1
+    pathname: J/JG/JGREELY/Geo-OLC-1.tar.gz
+    provides:
+      Geo::OLC 1
+    requirements:
+      ExtUtils::MakeMaker 0
+      List::Util 1
+      Test::More 0
+      perl 5.010001
   Geography-NationalGrid-1.6
     pathname: P/PK/PKENT/Geography-NationalGrid-1.6.tar.gz
     provides:

perllib/FixMyStreet/App/Controller/Location.pm

@@ -6,6 +6,7 @@ BEGIN {extends 'Catalyst::Controller'; }
 
 use Encode;
 use FixMyStreet::Geocode;
+use Geo::OLC;
 use Try::Tiny;
 use Utils;
 
@@ -74,6 +75,30 @@ sub determine_location_from_pc : Private {
             map { Utils::truncate_coordinate($_) } ($1, $2);
         return $c->forward( 'check_location' );
     }
+
+    if (Geo::OLC::is_full($pc)) {
+        my $ref = Geo::OLC::decode($pc);
+        ($c->stash->{latitude}, $c->stash->{longitude}) =
+            map { Utils::truncate_coordinate($_) } @{$ref->{center}};
+        return $c->forward( 'check_location' );
+    }
+
+    if ($pc =~ /^\s*([2-9CFGHJMPQRVWX]{4,6}\+[2-9CFGHJMPQRVWX]{2,3})\s+(.*)$/i) {
+        my ($code, $rest) = ($1, $2);
+        my ($lat, $lon, $error) = FixMyStreet::Geocode::lookup($rest, $c);
+        if (ref($error) eq 'ARRAY') { # Just take the first result
+            $lat = $error->[0]{latitude};
+            $lon = $error->[0]{longitude};
+        }
+        if (defined $lat && defined $lon) {
+            $code = Geo::OLC::recover_nearest($code, $lat, $lon);
+            my $ref = Geo::OLC::decode($code);
+            ($c->stash->{latitude}, $c->stash->{longitude}) =
+                map { Utils::truncate_coordinate($_) } @{$ref->{center}};
+            return $c->forward( 'check_location' );
+        }
+    }
+
     if ( $c->cobrand->country eq 'GB' && $pc =~ /^([A-Z])([A-Z])([\d\s]{4,})$/i) {
         if (my $convert = gridref_to_latlon( $1, $2, $3 )) {
             ($c->stash->{latitude}, $c->stash->{longitude}) =

t/Mock/Nominatim.pm

@@ -1,6 +1,7 @@
 package t::Mock::Nominatim;
 
 use JSON::MaybeXS;
+use LWP::Protocol::PSGI;
 use Web::Simple;
 
 has json => (
@@ -35,6 +36,10 @@ sub query {
             {"osm_type"=>"way","osm_id"=>"4684282","lat"=>"55.9504009","lon"=>"-3.1858425","display_name"=>"High Street, Old Town, City of Ed\x{ed}nburgh, Scotland, EH1 1SP, United Kingdom","class"=>"highway","type"=>"tertiary","importance"=>0.55892577838734},
             {"osm_type"=>"node","osm_id"=>"27424410","lat"=>"55.8596449","lon"=>"-4.240377","display_name"=>"High Street, Collegelands, Merchant City, Glasgow, Glasgow City, Scotland, G, United Kingdom","class"=>"railway","type"=>"station","importance"=>0.53074299592768}
         ];
+    } elsif ($q eq 'edinburgh') {
+        return [
+            {"osm_type"=>"node","osm_id"=>"17898859","lat"=>"55.9533456","lon"=>"-3.1883749","display_name"=>"Edinburgh","class"=>"place","type"=>"place:city","importance"=>0.676704}
+        ];
     }
     return [];
 }

t/app/controller/around.t

@@ -9,6 +9,7 @@ use constant MIN_ZOOM_LEVEL => 88;
 package main;
 
 use Test::MockModule;
+use t::Mock::Nominatim;
 
 use FixMyStreet::TestMech;
 my $mech = FixMyStreet::TestMech->new;
@@ -89,6 +90,30 @@ foreach my $test (
     };
 }
 
+subtest "check lat/lng for full plus code" => sub {
+    $mech->get_ok('/');
+    $mech->submit_form_ok( { with_fields => { pc => "9C7RXR26+R5" } } );
+    is_deeply $mech->page_errors, [], "no errors for plus code";
+    is_deeply $mech->extract_location, {
+        pc => "9C7RXR26+R5",
+        latitude  => 55.952063,
+        longitude => -3.189562,
+    },
+      "got expected location for full plus code";
+};
+
+subtest "check lat/lng for short plus code" => sub {
+    $mech->get_ok('/');
+    $mech->submit_form_ok( { with_fields => { pc => "XR26+R5 Edinburgh" } } );
+    is_deeply $mech->page_errors, [], "no errors for plus code";
+    is_deeply $mech->extract_location, {
+        pc => "XR26+R5 Edinburgh",
+        latitude  => 55.952063,
+        longitude => -3.189562,
+    },
+      "got expected location for short plus code";
+};
+
 my $body_edin_id = $mech->create_body_ok(2651, 'City of Edinburgh Council')->id;
 my $body_west_id = $mech->create_body_ok(2504, 'Westminster City Council')->id;