package com.hdl.photovoltaic.internet.HttpServer;

import android.text.TextUtils;

import com.alibaba.fastjson.JSON;
import com.hdl.photovoltaic.other.HdlFileLogic;


import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import fi.iki.elonen.NanoHTTPD;

/**
 * 本地服务器
 */
public class MyNanoHttpServer extends NanoHTTPD {

    //声明服务端 端口
    public static final Integer HTTP_PORT = 49152;

    public MyNanoHttpServer(String hostname, int port) {
        super(hostname, port);
    }

    private volatile static MyNanoHttpServer myNanoHttpServer;

    //TODO	单例模式，获取实例对象，并传入当前机器IP
    public static MyNanoHttpServer getInstance(String ipAddress) {
        if (myNanoHttpServer == null) {
            synchronized (MyNanoHttpServer.class) {
                if (myNanoHttpServer == null) {
                    myNanoHttpServer = new MyNanoHttpServer(ipAddress, HTTP_PORT);
                }
            }
        }
        return myNanoHttpServer;
    }

    @Override
    public Response serve(IHTTPSession session) {
        //TODO  解决客户端请求参数携带中文，出现中文乱码问题
        ContentType ct = new ContentType(session.getHeaders().get("content-type")).tryUTF8();
        session.getHeaders().put("content-type", ct.getContentTypeHeader());
        return dealWith(session);
    }

    private Response dealWith(IHTTPSession session) {
        Date dateTime = new Date();
        if (Method.POST == session.getMethod()) {
            //获取请求头数据
            Map<String, String> header = session.getHeaders();
            //获取传参参数
            Map<String, String> params = new HashMap<String, String>();
            try {
                session.parseBody(params);
                String paramStr = params.get("postData");
                if (TextUtils.isEmpty(paramStr)) {
                    return newFixedLengthResponse("success");
                }
                paramStr = paramStr.replace("\r\n", " ");

                com.alibaba.fastjson.JSONObject jsonParam = JSON.parseObject(paramStr);
                Map<String, Object> result = new HashMap<>();
                //TODO 写你的业务逻辑.....
                //升级驱动文件路径
                String fileName = ((HTTPSession) session).getUri();
                String data = "";
                if (fileName.equals(HdlFileLogic.getInstance().getDriveRootPath())) {

                    data = HdlFileLogic.getInstance().readFile(fileName);

                }
                //响应客户端
                return newFixedLengthResponse(data);
//                return newFixedLengthResponse("success");
            } catch (IOException e) {
                e.printStackTrace();
            } catch (ResponseException e) {
                e.printStackTrace();
            }
            return newFixedLengthResponse("success");
        } else if (Method.GET == session.getMethod()) {
            Map<String, List<String>> parameters = session.getParameters();
            //升级驱动文件路径
            String fileName = ((HTTPSession) session).getUri();
            String data = "";
            if (fileName.contains(HdlFileLogic.getInstance().getDriveRootPath())) {
                data = HdlFileLogic.getInstance().readFile(fileName);
            }
            //响应客户端
            return newFixedLengthResponse(data);
//            return newFixedLengthResponse("success");
        }

        return newFixedLengthResponse("404");
    }

    public static Response newFixedLengthResponse(String msg) {
        return newFixedLengthResponse(Response.Status.OK, NanoHTTPD.MIME_HTML, msg);
    }

}