/*******************************************************************************
 * Copyright (c) 2015 Jeff Martin.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public
 * License v3.0 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 * <p>
 * Contributors:
 * Jeff Martin - initial API and implementation
 ******************************************************************************/
package cuchaz.enigma.mapping;

import cuchaz.enigma.utils.Utils;

public class ArgumentEntry implements Entry {

    private BehaviorEntry behaviorEntry;
    private int index;
    private String name;

    public ArgumentEntry(BehaviorEntry behaviorEntry, int index, String name) {
        if (behaviorEntry == null) {
            throw new IllegalArgumentException("Behavior cannot be null!");
        }
        if (index < 0) {
            throw new IllegalArgumentException("Index must be non-negative!");
        }
        if (name == null) {
            throw new IllegalArgumentException("Argument name cannot be null!");
        }

        this.behaviorEntry = behaviorEntry;
        this.index = index;
        this.name = name;
    }

    public ArgumentEntry(ArgumentEntry other) {
        this.behaviorEntry = other.getBehaviorEntry();
        this.index = other.index;
        this.name = other.name;
    }

    public ArgumentEntry(ArgumentEntry other, String newClassName) {
        this.behaviorEntry = (BehaviorEntry) other.behaviorEntry.cloneToNewClass(new ClassEntry(newClassName));
        this.index = other.index;
        this.name = other.name;
    }

    public ArgumentEntry(ArgumentEntry other, BehaviorEntry entry) {
        this.behaviorEntry = entry;
        this.index = other.index;
        this.name = other.name;
    }

    public BehaviorEntry getBehaviorEntry() {
        return this.behaviorEntry;
    }

    public int getIndex() {
        return this.index;
    }

    @Override
    public String getName() {
        return this.name;
    }

    @Override
    public ClassEntry getClassEntry() {
        return this.behaviorEntry.getClassEntry();
    }

    @Override
    public String getClassName() {
        return this.behaviorEntry.getClassName();
    }

    @Override
    public ArgumentEntry cloneToNewClass(ClassEntry classEntry) {
        return new ArgumentEntry(this, classEntry.getName());
    }

    public String getMethodName() {
        return this.behaviorEntry.getName();
    }

    public Signature getMethodSignature() {
        return this.behaviorEntry.getSignature();
    }

    @Override
    public int hashCode() {
        return Utils.combineHashesOrdered(this.behaviorEntry, Integer.valueOf(this.index).hashCode(), this.name.hashCode());
    }

    @Override
    public boolean equals(Object other) {
        return other instanceof ArgumentEntry && equals((ArgumentEntry) other);
    }

    public boolean equals(ArgumentEntry other) {
        return this.behaviorEntry.equals(other.behaviorEntry) && this.index == other.index && this.name.equals(other.name);
    }

    @Override
    public String toString() {
        return this.behaviorEntry.toString() + "(" + this.index + ":" + this.name + ")";
    }
}