/*
 * Copyright 2023 - 2024 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.ai.aot;

import org.springframework.ai.chat.messages.Message;
import org.springframework.ai.chat.messages.AbstractMessage;
import org.springframework.ai.chat.messages.AssistantMessage;
import org.springframework.ai.chat.messages.ToolResponseMessage;
import org.springframework.ai.chat.messages.MessageType;
import org.springframework.ai.chat.messages.SystemMessage;
import org.springframework.ai.chat.messages.UserMessage;
import org.springframework.ai.model.function.FunctionCallback;
import org.springframework.ai.model.function.FunctionCallbackContext;
import org.springframework.ai.model.function.FunctionCallbackWrapper;
import org.springframework.aot.hint.ExecutableMode;
import org.springframework.aot.hint.RuntimeHints;
import org.springframework.aot.hint.RuntimeHintsRegistrar;
import org.springframework.core.io.ClassPathResource;
import org.springframework.lang.NonNull;
import org.springframework.lang.Nullable;
import org.springframework.util.ReflectionUtils;

import java.lang.reflect.Method;
import java.util.Set;

public class SpringAiCoreRuntimeHints implements RuntimeHintsRegistrar {

	@Override
	public void registerHints(@NonNull RuntimeHints hints, @Nullable ClassLoader classLoader) {

		var chatTypes = Set.of(AbstractMessage.class, AssistantMessage.class, ToolResponseMessage.class, Message.class,
				MessageType.class, UserMessage.class, SystemMessage.class, FunctionCallbackContext.class,
				FunctionCallback.class, FunctionCallbackWrapper.class);
		for (var c : chatTypes) {
			hints.reflection().registerType(c);
		}

		Method getDescription = ReflectionUtils.findMethod(FunctionCallback.class, "getDescription");
		hints.reflection().registerMethod(getDescription, ExecutableMode.INVOKE);
		Method getInputTypeSchema = ReflectionUtils.findMethod(FunctionCallback.class, "getInputTypeSchema");
		hints.reflection().registerMethod(getInputTypeSchema, ExecutableMode.INVOKE);
		Method getName = ReflectionUtils.findMethod(FunctionCallback.class, "getName");
		hints.reflection().registerMethod(getName, ExecutableMode.INVOKE);

		for (var r : Set.of("antlr4/org/springframework/ai/vectorstore/filter/antlr4/Filters.g4",
				"embedding/embedding-model-dimensions.properties"))
			hints.resources().registerResource(new ClassPathResource(r));

	}

}