use strict;
use t::TestYAML ();
use Data::Dumper;
use Test::More;
use JSON::Syck;

my $HAS_JSON = 0;
BEGIN {
  unless (defined &utf8::encode) {
    plan skip_all => 'No Unicode support';
    exit;
  }
  eval { require JSON; $HAS_JSON = 1 };
  if ($HAS_JSON && $JSON::VERSION >= 2 && $JSON::VERSION < 2.11) {
    plan skip_all => 'JSON compatibility broken since JSON 2.0';
    exit;
  }
}

use Storable;


$Data::Dumper::Indent = 0;
$Data::Dumper::Terse  = 1;

my @tests = (
    '"foo"',
    '[1, 2, 3]',
    '[1, 2, 3]',
    '2',
    '"foo\'bar"',
    '[1,2,3]',
    '{"foo": "bar"}',
    '{"foo":"bar"}',
    '[{"foo": 2}, {"foo": "bar"}]',
    qq("\xe5\xaa\xbe"),
    'null',
    '{"foo":null}',
    '""',
    '[null,null]',
    '["",null]',
    '{"foo":""}',
    '["\"://\""]',
    '"~foo"',
    {TEST => '"\/"', TODO => "backslashed char not working yet"},  # escaped solidus
    '"\""',    
    {TEST => '"\b"', TODO => "backslashed char not working yet"},
    {TEST => '"\f"', TODO => "backslashed char not working yet"},
    {TEST => '"\n"', TODO => "backslashed char not working yet"},
    {TEST => '"\r"', TODO => "backslashed char not working yet"},
    {TEST => '"\t"', TODO => "backslashed char not working yet"},
    {TEST => '"\u0001"', TODO => "backslashed char not working yet"},
);

plan tests => scalar @tests * (2 + $HAS_JSON) * 2;

TODO: {
    for my $test_orig (@tests) {
        for my $single_quote (0, 1) {
            for my $unicode (0, 1) {
                local $JSON::Syck::SingleQuote = $single_quote;
                local $JSON::Syck::ImplicitUnicode = $unicode;
                my $test = $test_orig;
                
                local $TODO;
                if(ref $test eq 'HASH') {
                    $TODO = $test->{TODO};
                    $test = $test->{TEST};
                }
                
                if ($single_quote) {
                    $test =~ s/'/\\'/g;
                    $test =~ s/"/'/g;
                }
        
                my $data = eval { JSON::Syck::Load($test) };
                my $json = JSON::Syck::Dump($data);
                #diag("json: $json");
                utf8::encode($json) if !ref($json) && $unicode;
        
                # don't bother white spaces
                for ($test, $json) {
                    s/([,:]) /$1/eg;
                }
        
                my $desc = "roundtrip $test -> " . Dumper($data) . " -> $json -> sq:$single_quote utf8:$unicode ";
                utf8::encode($desc);
                is $json, $test, $desc;
        
                # try parsing the data with JSON.pm
                if ($HAS_JSON and !$single_quote) {
                    $SIG{__WARN__} = sub { 1 };
                    utf8::encode($data) if defined($data) && !ref($data) && $unicode;
                    my $data_pp = eval { JSON::jsonToObj($json) };
                    is_deeply $data_pp, $data, "compatibility with JSON.pm $test";
                }
            }
        }
    }
}