use strict;
use warnings;
use Test::More;
use Config;
use Protobuf::DescriptorPool;

BEGIN {
    if (!$Config{useithreads} || $^O eq 'MSWin32') {
        plan skip_all => "ithreads skipped on $^O";
    }
}

use File::Temp qw(tempfile);

subtest 'Protobuf objects skip cloning on thread creation' => sub {
    my $code = <<'EOF';
use strict;
use warnings;
use threads;
use lib "t/lib";
use TestHelpers;

my $pool = TestHelpers->get_generated_pool();
TestHelpers->load_test_protos($pool, 't/data/test_descriptor.bin');

my $msg = Protobuf_perl_test::Test::TestMessage->new();
$msg->set_value(123);

# This should NOT crash the process now that we use CLONE_SKIP
my $t = threads->create(sub {
    return 1;
});
$t->join() if $t;
print "SUCCESS\n";
EOF

    my ($fh, $filename) = tempfile();
    print $fh $code;
    close $fh;

    my $cmd = "$^X -Iblib/lib -Iblib/arch -Ilib $filename 2>&1";
    my $output = `$cmd`;
    my $exit_code = $? >> 8;

    unlink $filename;

    is($exit_code, 0, "Process exited with zero code ($exit_code) - CLONE_SKIP worked");
    like($output, qr/SUCCESS/, 'Output contains SUCCESS message');
};

subtest 'pool freeze' => sub {
    my $pool = Protobuf::DescriptorPool->new();
    ok($pool->freeze(), 'Freeze pool works (skeletal)');
};

TODO: {
    local $TODO = 'Implement Thread-Safe Global Freezing';
    ok(0, 'Frozen DescriptorPools can be safely shared across ithreads');
}

TODO: {
    local $TODO = 'Implement Cross-Thread Message Serialization Handoff';
    ok(0, 'High-level utility handles safe message transfer between threads');
}

TODO: {
    local $TODO = 'Integrate ThreadSanitizer (TSan) for race detection';
    ok(0, 'System-wide data races are automatically detected during concurrent tests');
}

TODO: {
    local $TODO = 'Implement Cross-Interpreter Object Migration via Shared Memory';
    ok(0, 'Reified message trees migrated between independent interpreters without copying');
}

TODO: {
    local $TODO = 'Implement Multi-Interpreter Registry Synchronization';
    ok(0, 'Shared pool state and object caches synchronized across interpreter boundaries');
}

TODO: {
    local $TODO = 'Implement Automated Concurrency Stress-Fuzzer';
    ok(0, 'Integrated core remains stable under extreme concurrent object manipulation stress');
}

done_testing();
