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

subtest 'basic creation' => sub {
    my $pool = Protobuf::DescriptorPool->new;
    ok($pool, 'Created pool');
    isa_ok($pool, 'Protobuf::DescriptorPool');
    if ($Protobuf::HAS_XS) {
        ok($pool->{_pool_ptr}, 'Has internal pool pointer');
    } else {
        ok($pool->_pp_pool, 'Has PurePerl pool');
    }
};

subtest 'generated pool' => sub {
    my $pool = Protobuf::DescriptorPool->generated_pool();
    ok($pool, 'Got generated pool');
    isa_ok($pool, 'Protobuf::DescriptorPool');

    my $pool2 = Protobuf::DescriptorPool->generated_pool();
    if ($Protobuf::HAS_XS) {
        is($pool->{_pool_ptr}, $pool2->{_pool_ptr}, 'Generated pool is a singleton');
    } else {
        is($pool, $pool2, 'Generated pool is a singleton');
    }
};

subtest 'find missing' => sub {
    my $pool = Protobuf::DescriptorPool->new;
    my $msg = $pool->find_message_by_name('non.existent.Message');
    is($msg, undef, 'Returns undef for non-existent message');
};

subtest 'add and find' => sub {
    # We need a valid FileDescriptorProto blob.
    # For now we'll just test that the method exists and handles undef gracefully if we were to pass it.
    my $pool = Protobuf::DescriptorPool->new;
    eval { $pool->add_serialized_file(undef) };
    ok($@, 'Caught error adding undef file');
};

ok(1, 'All basic tests passed');

TODO: {
    local $TODO = 'Implement Dynamic Descriptor Reloading';
    ok(0, 'Pool supports updating definitions without invalidating messages');
}

TODO: {
    local $TODO = 'Implement Shared Memory Global Pool API';
    ok(0, 'Zero-copy schema sharing across multiple Perl processes verified');
}

TODO: {
    local $TODO = 'Implement On-Demand Descriptor JIT Loading';
    ok(0, 'Descriptors automatically loaded from search paths when requested');
}

TODO: {
    local $TODO = 'Implement Self-Healing Pool Integrity background auditing';
    ok(0, 'Internal auditor detects and reports corruption in large descriptor pools');
}

TODO: {
    local $TODO = 'Provide Symbol Dependency Graph Visualization';
    ok(0, 'DescriptorPool provides dependency graph in DOT format');
}

done_testing();
