#include <ESP8266HTTPClient.h>
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include "Arduino.h"
#define JST 3600*9



//---------------------------------------------------------------------------------------------------------
const char *ssid = "SSID";                  //SSID
const char *password = "PASS";              //PASS
String SsubscTime = "0000/00/00_00:00:00";  //登録日時⇒0000/00/00_00:00:00のフォーマットで入力 ※同登録日時を作らないように
String Sproject = "project";                //プロジェクト
String Splace = "place";                    //設置場所
String Shuman = "human";                    //利用者
//---------------------------------------------------------------------------------------------------------




String SserverURL = "http://www.48v.me/~08takuya/cgi-bin/IoT/main/IoT_manage.py";
String Smachine = "ESP8266";
String SnowTime;
//Sname; 無し
//Smail; 無し
String SipAdd;


void settingWifi() {
    WiFi.mode(WIFI_STA);
    delay(500);
    WiFi.begin(ssid, password);

    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
    }

    //ntp準備
    configTime( JST, 0, "ntp.nict.jp", "ntp.jst.mfeed.ad.jp");
    SipAdd = ipToString(WiFi.localIP());
}


void SendData() {
    GettingTime(); //nowtime更新
    PostData();
}

void GettingTime(){

  time_t t;
  struct tm *tm;
  //現在時間取得
  t = time(NULL);
  tm = localtime(&t);

  //ここからフォーマット合わせ
  //月
  String month = String(tm->tm_mon+1);
  if(month.length() == 1){
    month = "0" + month;
  }
  //日
  String day = String(tm->tm_mday);
  if(day.length() == 1){
    day = "0" + day;
  }
  //時間
  String hour = String(tm->tm_hour);
  if(hour.length() == 1){
    hour = "0" + hour;
  }
  //分
  String minute = String(tm->tm_min);
   if(minute.length() == 1){
    minute = "0" + minute;
  }
  //秒
  String second = String(tm->tm_sec);
  if(second.length() == 1){
    second = "0" + second;
  }

  SnowTime = String(tm->tm_year+1900) + month + day + hour + minute + second;
}


void PostData(){
  WiFiClient client;
  HTTPClient http;

  // POSTデータのセットアップ
  String postData = "subscTime="+SsubscTime+"&serverURL="+SserverURL+"&machine="+Smachine+"&project="+Sproject+"&nowTime="+SnowTime+"&place="+Splace+"&human="+Shuman+"&ipAdd="+SipAdd;

  if (!http.begin(client,SserverURL)) {
      return;
  }
  
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  
  int responseCode = http.POST(postData);
  
  String body = http.getString();

  // 改行の位置を探す
  int newlineIndex = body.indexOf('\n');
  
  // 時間取得
  String NextTime = body.substring(0, newlineIndex);
  // url取得
  String SserverURL = body.substring(newlineIndex + 1);

  SipAdd = ipToString(WiFi.localIP());

  http.end();
}


String ipToString(uint32_t ip){
    String result = "";

    result += String((ip & 0xFF), 10);
    result += ".";
    result += String((ip & 0xFF00) >> 8, 10);
    result += ".";
    result += String((ip & 0xFF0000) >> 16, 10);
    result += ".";
    result += String((ip & 0xFF000000) >> 24, 10);

    return result;
}