/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.painless.lookup;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodType;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Map;
import java.util.Objects;

public record PainlessMethod(
    Method javaMethod,
    Class<?> targetClass,
    Class<?> returnType,
    List<Class<?>> typeParameters,
    MethodHandle methodHandle,
    MethodType methodType,
    Map<Class<?>, Object> annotations
) {

    public PainlessMethod(
        Method javaMethod,
        Class<?> targetClass,
        Class<?> returnType,
        List<Class<?>> typeParameters,
        MethodHandle methodHandle,
        MethodType methodType,
        Map<Class<?>, Object> annotations
    ) {
        this.javaMethod = javaMethod;
        this.targetClass = targetClass;
        this.returnType = returnType;
        this.typeParameters = List.copyOf(typeParameters);
        this.methodHandle = methodHandle;
        this.methodType = methodType;
        this.annotations = Map.copyOf(annotations);
    }

    @Override
    public boolean equals(Object object) {
        if (this == object) {
            return true;
        }

        if (object == null || getClass() != object.getClass()) {
            return false;
        }

        PainlessMethod that = (PainlessMethod) object;
        return Objects.equals(javaMethod, that.javaMethod)
            && Objects.equals(targetClass, that.targetClass)
            && Objects.equals(returnType, that.returnType)
            && Objects.equals(typeParameters, that.typeParameters)
            && Objects.equals(methodType, that.methodType)
            && Objects.equals(annotations, that.annotations);
    }

    @Override
    public int hashCode() {
        return Objects.hash(javaMethod, targetClass, returnType, typeParameters, methodType, annotations);
    }
}