#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <EEPROM.h>
#include <DNSServer.h>
#include <ESP.h>

const byte DNS_PORT = 53;
DNSServer dnsServer;

MDNSResponder mdns;
ESP8266WebServer server(80);

String ssid = "";
String password = "";
String webPage = "";


void setup(void){

  IPAddress Ip(192, 168, 1, 1);
  IPAddress NMask(255, 255, 255, 0);
  WiFi.softAPConfig(Ip, Ip, NMask);
  WiFi.softAP(conf_ssid.c_str());
  WiFi.mode(WIFI_AP_STA);
  Serial.begin(115200);
  delay(1000);
  Serial.println("");
  Serial.println("Soft AP Started");
  Serial.println("");

  /* Setup the DNS server redirecting all the domains to the Ip */
  dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
  dnsServer.start(DNS_PORT, "www.example.com", Ip);

  //connectToWifi();
  getCredentials(); //Reads Home WiFi credentials from the EEPROM
  if (ssid != "" and password != ""){
    WiFi.begin(ssid.c_str(), password.c_str());
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
    }
    WiFi.mode(WIFI_AP_STA);
  }
  server.begin();

  // When no password is present
  if ((ssid == "" and password == "") or (ssid == "Error")){
    // ****** MAIN PAGE ******
    server.on("/", [](){ /* HANDLES CREDENTIAL INPUT */   });
    server.begin();
  }
  else // If we have ssid and password -- check if we have connection
  {
    webPage += "<h1>Main Webpage</h1>";
    Serial.println("");
    Serial.print("Connected to ");
    Serial.println(ssid);
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());
    server.begin();
    //if (mdns.begin("esp8266", WiFi.localIP())) {
     // Serial.println("MDNS responder started");
    //}

    server.on("/", [](){
      server.send(200, "text/html", webPage);
    });
    Serial.println("HTTP server started");
  }
}

void loop(void){
  dnsServer.processNextRequest();
  server.handleClient();
}