#include <WiFi.h> //Wifi library
//#include "esp_wpa2.h" //wpa2 library for connections to Enterprise networks
//#include "time.h"
#include <esp_wifi.h>
#include <HTTPClient.h>
#include <WiFiClientSecure.h>

#include "secrets.h"

const char* ntpServer = "pool.ntp.org";
const long  gmtOffsetSec = 25200;
const int   daylightOffsetSec = 0;

const String url = "http://www.httpbin.org/deflate";

struct tm timeInfo;

HTTPClient http;

int delayTime;

void connectWiFi();
void setClock();
void printLocalTime();
void calDelayTime ();



void setup() {
  Serial.begin(115200);
  delay(10);
  connectWiFi();
  setClock();
  calDelayTime();
}
// ------------------------------------------------------------------------------
void loop() {
  // if (WiFi.status() == WL_CONNECTED) { //if we are connected to Eduroam network
  //   counter = 0; //reset counter
  //   Serial.println("Wifi is still connected with IP: ");
  //   Serial.println(WiFi.localIP());   //inform user about his IP address
  // } else if (WiFi.status() != WL_CONNECTED) { //if we lost connection, retry
  //   WiFi.begin(ssid);
  // }
  // while (WiFi.status() != WL_CONNECTED) { //during lost connection, print dots
  //   delay(500);
  //   Serial.print(".");
  //   counter++;
  //   if (counter >= 60) { //30 seconds timeout - reset board
  //     ESP.restart();
  //   }
  // }
  // Serial.print("Connecting to website: ");
  // Serial.println(host);
  // WiFiClient client;
  // if (client.connect(host, 80)) {
  //   String url = "/rele/rele1.txt";
  //   client.print(String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "User-Agent: ESP32\r\n" + "Connection: close\r\n\r\n");

  //   while (client.connected()) {
  //     String line = client.readStringUntil('\n');
  //     if (line == "\r") {
  //       break;
  //     }
  //   }
  //   String line = client.readStringUntil('\n');
  //   Serial.println(line);
  // } else {
  //   Serial.println("Connection unsucessful");
  // }
  //delay(15000);
  delay(5000);
  printLocalTime();
  calDelayTime();

  // WiFiClientSecure *client = new WiFiClientSecure;
  // //WiFiClientSecure client;
  // if (client) {
  //   // client -> setCACert(rootCACertificate);
  // client->setInsecure();
  //   //client.setInsecure();
  //   // Add a scoping block for HTTPClient https to make sure it is destroyed before WiFiClientSecure *client is
  //   HTTPClient https;

  //   Serial.print("[HTTPS] begin...\n");
  //   if (https.begin(*client, "https://httpbin.org")) {  // HTTPS
  //     Serial.print("[HTTPS] GET...\n");
  //     // start connection and send HTTP header
  //     int httpCode = https.GET();

  //     // httpCode will be negative on error
  //     if (httpCode > 0) {
  //       // HTTP header has been send and Server response header has been handled
  //       Serial.printf("[HTTPS] GET... code: %d\n", httpCode);

  //       // file found at server
  //       if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
  //         String payload = https.getString();
  //         Serial.println(payload);
  //       }
  //     } else {
  //       Serial.printf("[HTTPS] GET... failed, error: %s\n", https.errorToString(httpCode).c_str());
  //     }

  //     https.end();
  //   } else {
  //     Serial.printf("[HTTPS] Unable to connect\n");
  //   }
  // }


  // http.begin(url);

  // int httpResponseCode = http.GET();
  // if (httpResponseCode > 0) {
  //   Serial.print("HTTP ");
  //   Serial.println(httpResponseCode);
  //   String payload = http.getString();
  //   Serial.println();
  //   Serial.println(payload);
  // }
  // else {
  //   Serial.print("Error code: ");
  //   Serial.println(httpResponseCode);
  //   Serial.println(":-(");
  // }
  // http.end();

}
// ------------------------------------------------------------------------------
void connectWiFi() {
  int counter = 0;
  uint8_t newMACAddress[] = {MAC_ADDR_1, MAC_ADDR_2, MAC_ADDR_3, MAC_ADDR_4, MAC_ADDR_5, MAC_ADDR_6};

  Serial.println();
  Serial.print("Connecting to network: ");
  Serial.println(SSID);
  WiFi.disconnect(true);  //disconnect form wifi to set new wifi connection
  WiFi.mode(WIFI_STA); //init wifi mode
  // Serial.print("old hostname: ");
  // Serial.println(WiFi.getHostname());
  // Serial.print("olc mac address: ");
  // Serial.println(WiFi.macAddress());
  WiFi.setHostname(HOSTNAME);
  esp_wifi_set_mac(WIFI_IF_STA, newMACAddress);
  Serial.print("Hostname: ");
  Serial.print(WiFi.getHostname());
  Serial.print("  MAC Address: ");
  Serial.println(WiFi.macAddress());
  WiFi.begin(SSID, WIFI_PASSWORD);
  //WiFi.begin(SSID, WPA2_AUTH_PEAP, WIFI_IDENTITY, WIFI_USERNAME, WIFI_PASSWORD);   //WPA2 Enterprise no cert
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
    counter++;
    if (counter >= 120) { //after 60 seconds timeout - reset board
      ESP.restart();
    }
  }
  Serial.println("");
  Serial.print("WiFi connected IP address : ");
  Serial.println(WiFi.localIP()); //print LAN IP
}
// ------------------------------------------------------------------------------
void setClock() {
  int counter = 0;

  configTime(gmtOffsetSec, daylightOffsetSec, ntpServer);
  Serial.print("syc NTP time ");
  while (!getLocalTime(&timeInfo)) {
    delay(500);
    Serial.print(".");
    counter++;
    if (counter >= 60) { //after 30 seconds timeout - reset board
      ESP.restart();
    }
  }
  Serial.println("");
  printLocalTime();
}
// ------------------------------------------------------------------------------
void printLocalTime() {
  if (!getLocalTime(&timeInfo)) {
    Serial.println("Failed to obtain time");
    return;
  }
  Serial.println(&timeInfo, "%A, %d %B %Y %H:%M:%S");

}
// ------------------------------------------------------------------------------

void calDelayTime () {
  int intHour;
  int calToMin;
  int intWkDay;
  int timeDelay;

  while (!getLocalTime(&timeInfo)) {
    delay(500);
  }
  // intHour = timeInfo.tm_hour;
  // intMin = timeInfo.tm_min;
  // intWkDay = timeInfo.tm_wday;

  //hour 0-23  min 0-59 wday 0-6
  //morning 7.15 (435)  noon 12.15 (735)  afternoon  16.45 (1005)  23.50 (1439)

  if (timeInfo.tm_wday != 0 && timeInfo.tm_wday != 7) {
    calToMin = (timeInfo.tm_hour * 60) + timeInfo.tm_min;
    Serial.println(calToMin);
    if (calToMin < 435) {
      timeDelay = (435 - calToMin);
    }
    else if (calToMin < 735) {
      Serial.println(calToMin);
      timeDelay = (735 - calToMin);
    }
    else if (calToMin < 1005) {
      timeDelay = (1005 - calToMin);
      Serial.println(timeDelay);

    }
    else {
      timeDelay = ((1440 - calToMin) + 345);
      Serial.println(timeDelay);

    }

  }
  Serial.println((timeDelay + random(5)) * 60 * 1000);
}