#!/usr/bin/env perl
-use 5.010;
-use strict;
+use 5.014;
use warnings;
use Data::Dump 'pp';
-use JSON;
+use JSON::PP;
use File::stat;
use Time::Piece;
-our $VERSION = '1.01';
+our $VERSION = '1.02';
+
+my %BROWSERJOIN = (
+ edge => 'ie',
+ and_chr => 'android',
+);
local $/; # slurp
my $source = readline;
$JSON::PP::false = 0;
$JSON::PP::true = 1;
-my $data = from_json($source);
-my $update = eval { stat(${^LAST_FH} // $ARGV)->mtime }
- or warn "Could not determine input time\n";
-$data->{-date} = Time::Piece->new($update)->datetime;
+my $data = decode_json($source);
+$data->{-date} = Time::Piece->new($_)->datetime
+ for delete $data->{updated} || ();
+
+delete $data->{eras};
+for (values %{ $data->{data} }) {
+ delete @{$_}{qw[ usage_perc_a usage_perc_y ]};
+}
+for (values %{ $data->{agents} }) {
+ delete $_->{usage_global};
+ shift @{ $_->{versions} } while !defined $_->{versions}->[0];
+}
+
+while (my ($browser, $target) = each %BROWSERJOIN) {
+ my $agent1 = delete $data->{agents}->{$browser} or next;
+ my $agent2 = $data->{agents}->{$target} or next;
+ splice @{ $agent2->{versions} }, -3, 3, @{ $agent1->{versions} };
+ $agent2->{browser} = sprintf '%s (former %s)',
+ $agent1->{browser}, $agent2->{browser};
+
+ for (values %{ $data->{data} }) {
+ my $stats = delete $_->{stats}->{$browser} or next;
+ $_ = { %{$_}, %{$stats} } for $_->{stats}->{$target};
+ }
+}
say "# automatically generated by $0";
print '+', pp($data);