package io.gitlab.jfronny.inceptum.gtk.callback;

import io.github.jwharm.javagi.CallbackGenerator;
import io.github.jwharm.javagi.Interop;
import io.github.jwharm.javagi.Marshal;
import io.github.jwharm.javagi.Ownership;
import org.gtk.gobject.GiObject;
import org.gtk.gobject.ParamSpec;
import org.gtk.gobject.Value;
import org.jetbrains.annotations.ApiStatus;

import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.Linker;
import java.lang.foreign.MemoryAddress;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;

public interface SetPropertyCallback {
    void invoke(GiObject object, int propertyId, Value value, ParamSpec paramSpec);

    default void upcall(MemoryAddress object, int propertyId, MemoryAddress value, MemoryAddress pspec) {
        invoke(GiObject.fromAddress.marshal(object, Ownership.NONE),
                propertyId,
                Value.fromAddress.marshal(value, Ownership.NONE),
                ParamSpec.fromAddress.marshal(pspec, Ownership.NONE));
    }

    @ApiStatus.Internal
    FunctionDescriptor DESCRIPTOR = FunctionDescriptor.ofVoid(Interop.valueLayout.ADDRESS, Interop.valueLayout.C_INT, Interop.valueLayout.ADDRESS, Interop.valueLayout.ADDRESS);
    @ApiStatus.Internal
    MethodHandle HANDLE = CallbackGenerator.getHandle(MethodHandles.lookup(), SetPropertyCallback.class, DESCRIPTOR);

    default MemoryAddress toCallback() {
        return Linker.nativeLinker().upcallStub(HANDLE.bindTo(this), DESCRIPTOR, Interop.getScope()).address();
    }
}