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package com.ly.mybatis.mapperservice.model;


import com.baomidou.mybatisplus.core.metadata.IPage;

import java.util.Collection;
import java.util.Map;
import java.util.function.Supplier;

public class Result {
    private boolean success = true;
    private String optype;
    private T result;
    private String message;

    public Result() {
    }

    public Result(boolean success, String optype, T result, String message) {
        this.success = success;
        this.optype = optype;
        this.result = result;
        this.message = message;
    }

    public boolean isEmpty() {
        return isEmpty(result);
    }

    public boolean isSuccess() {
        return success;
    }

    public Result setSuccess(boolean success) {
        this.success = success;
        return this;
    }

    public String getOptype() {
        return optype;
    }

    public Result setOptype(String optype) {
        this.optype = optype;
        return this;
    }

    public T get() {
        return result;
    }

    public T getOrDefault(T defaultValue) {
        if (isSuccess()) {
            return result;
        }
        return defaultValue;
    }

    public T getOrDefault(Supplier defaultValueSupplier) {
        if (isSuccess()) {
            return result;
        }
        return defaultValueSupplier.get();
    }

    public T getOrException(Supplier exceptionSupplier) {
        if (isSuccess()) {
            return result;
        }
        throw exceptionSupplier.get();
    }

    public Result set(T result) {
        this.result = result;
        return this;
    }

    public String getMessage() {
        return message;
    }

    public Result setMessage(String message) {
        this.message = message;
        return this;
    }

    private boolean isEmpty(Object object) {
        if (object == null) {
            return true;
        }
        if (object instanceof String) {
            return "".equals(object);
        }
        if (object instanceof Collection) {
            return ((Collection) object).isEmpty();
        }
        if (object instanceof Map) {
            return ((Map) object).isEmpty();
        }
        if (object instanceof IPage) {
            return isEmpty(((IPage) object).getRecords());
        }
        return false;
    }
}