package com.oying.modules.pc.common;

import cn.hutool.core.util.ObjUtil;
import lombok.Data;

/**
 * 用于封装字段值的变化记录，支持泛型比较逻辑
 * @param <T>
 */
@Data
public class ValueUpdate<T> {

    private final T newValue;
    private final T oldValue;

    public ValueUpdate(T newValue, T oldValue) {
        this.newValue = newValue;
        this.oldValue = oldValue;
    }

    public boolean isChange() {
        return isChange(newValue, oldValue);
    }

    public boolean isChangeAndOldValueNotEmpty() {
        return isChangeAndOldValueNotEmpty(newValue, oldValue);
    }

    public static <T> boolean isChange(T newValue, T oldValue) {
        return ObjUtil.isNotEmpty(newValue) && !newValue.equals(oldValue);
    }

    public static <T> boolean isChangeAndOldValueNotEmpty(T newValue, T oldValue) {
        return ObjUtil.isNotEmpty(oldValue) && isChange(newValue, oldValue);
    }

}