package org.warp.cowdb;

import it.unimi.dsi.fastutil.longs.LongArrayList;
import it.unimi.dsi.fastutil.longs.LongList;
import org.warp.jcwdb.ann.DBDataType;

import java.io.IOException;
import java.lang.reflect.Method;

public interface IObjectsIO {
	<T extends EnhancedObject> T loadEnhancedObject(long reference, Class<T> objectType) throws IOException;

	<T> T loadObject(long reference) throws IOException;

	LongArrayList loadReferencesList(long reference) throws IOException;

	<T extends EnhancedObject> void setEnhancedObject(long reference, T value) throws IOException;

	<T> void setObject(long reference, T value) throws IOException;

	void setReferencesList(long reference, LongArrayList value) throws IOException;

	long newNullObject() throws IOException;

	default <T extends EnhancedObject> long newEnhancedObject(T value) throws IOException {
		long reference = newNullObject();
		if (value != null) {
			setEnhancedObject(reference, value);
		}
		return reference;
	}

	default <T> long newObject(T value) throws IOException {
		long reference = newNullObject();
		if (value != null) {
			setObject(reference, value);
		}
		return reference;
	}

	default long newReferencesList(LongArrayList value) throws IOException {
		long reference = newNullObject();
		if (value != null) {
			setReferencesList(reference, value);
		}
		return reference;
	}

	void loadProperty(EnhancedObject enhancedObject, int propertyId, Method propertyGetter, DBDataType propertyType, long propertyUID) throws IOException;

	void registerClass(Class<?> type, int id);

	IDataInitializer getDataInitializer();

	LongList loadPrimitiveData(long id) throws IOException;
}