package com.javaweb.third.baidu.bean;

import com.alibaba.fastjson.JSONObject;
import org.slf4j.LoggerFactory;

import java.io.Serializable;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.List;
import java.util.Map;


/**
 * 封装 API 响应结果，将 json 字符串转换成 java 数据类型
 */
public class BaiduApiResult implements Serializable {
    org.slf4j.Logger logger= LoggerFactory.getLogger(BaiduApiResult.class);
    private static final long serialVersionUID = 722417391137943513L;

    private Map<String, Object> attrs;
    private String json;

    /**
     * 通过 json 构造 bean.BaiduApiResult，注意返回结果不为 json 的 api（如果有的话）
     * @param jsonStr json字符串
     */
    @SuppressWarnings("unchecked")
    public BaiduApiResult(String jsonStr) {
        this.json = jsonStr;
        try {
            Map<String, Object> temp = JSONObject.parseObject(jsonStr,Map.class);
            this.attrs = temp;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 通过 json 创建 bean.BaiduApiResult 对象，等价于 new bean.BaiduApiResult(jsonStr)
     * @param jsonStr json字符串
     * @return {bean.BaiduApiResult}
     */
    public static BaiduApiResult create(String jsonStr) {
        return new BaiduApiResult(jsonStr);
    }

    public String getJson() {
        return json;
    }

    @Override
    public String toString() {
        return getJson();
    }

    /**
     * APi 请求是否成功返回
     * @return {boolean}
     */
    public boolean isSucceed() {
        Integer errorCode = getErrorCode();
        // errorCode 为 0 时也可以表示为成功，详见：http://mp.weixin.qq.com/wiki/index.php?title=%E5%85%A8%E5%B1%80%E8%BF%94%E5%9B%9E%E7%A0%81%E8%AF%B4%E6%98%8E
        return (errorCode == null || errorCode == 0);
    }

    public Integer getErrorCode() {
        return getInt("error_code");
    }

    public String getErrorMsg() {
        Integer errorCode = getErrorCode();
        if (errorCode != null) {
            String result = BaiduErrCode.errMsg(errorCode);
            if (result != null) {
                return result;
            }else{
                logger.warn("未知返回码：" + errorCode);
                return  getStr("error_msg");
            }

        }
        return (String)attrs.get("error_msg");
    }

    @SuppressWarnings("unchecked")
    public <T> T get(String name) {
        return (T)attrs.get(name);
    }

    public String getStr(String name) {
        return (String)attrs.get(name);
    }

    public Integer getInt(String name) {
        Number number = (Number) attrs.get(name);
        return number == null ? null : number.intValue();
    }

    public Long getLong(String name) {
        Number number = (Number) attrs.get(name);
        return number == null ? null : number.longValue();
    }

    public BigInteger getBigInteger(String name) {
        return (BigInteger)attrs.get(name);
    }

    public Double getDouble(String name) {
        return (Double)attrs.get(name);
    }

    public BigDecimal getBigDecimal(String name) {
        return (BigDecimal)attrs.get(name);
    }

    public Boolean getBoolean(String name) {
        return (Boolean)attrs.get(name);
    }

    @SuppressWarnings("rawtypes")
    public List getList(String name) {
        return (List)attrs.get(name);
    }

    @SuppressWarnings("rawtypes")
    public Map getMap(String name) {
        return (Map)attrs.get(name);
    }

    public Map<String, Object> getAttrs(){
        return this.attrs;
    }

}