#define WOKWI

#ifndef WOKWI
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WiFiMulti.h> 
#include <ESP8266mDNS.h>
#include <ESP8266WebServer.h>
#include <TimeLib.h> 
#endif
#ifdef WOKWI
#include "TimeLib.h" 
#endif

ESP8266WiFiMulti wifiMulti;     // Create an instance of the ESP8266WiFiMulti class, called 'wifiMulti'

ESP8266WebServer server(80);    // Create a webserver object that listens for HTTP request on port 80

#include "global_var.h"
#include "html_gen.h"
#include "RingBuf.h"

RingBuf<uint8_t, 10> myBuffer;

tmElements_t simulationTime;  // Holds the simulated time

void insertData()
{
  uint8_t d = 10;
  for(int j = 0; j < 78; j++)
    myBuffer.lockedPushOverwrite(--d);
  
  for ( int i = 0; i < NO_OF_POINTS; i++)
  {
    year[i] = 2023;
    month[i] = 8;
    day[i] = 17;
    hour[i] = i/4;
    minutes[i] = (i%4)*15;
    sp[i][0] = 20+i;
    set[i][0] = 23;
   }
  for ( int i = 0; i < 123/*NO_OF_POINTS*/; i++)
  {
    t[0].lockedPushOverwrite(23.0+5.0*cos((6.0*3.141*i)/100.0)); 
  }
}

void updateData()
{
  // Print the simulated time
    Serial.print("Simulated Time: ");
    Serial.print(year());   // Year
    Serial.print("-");
    Serial.print(month());  // Month
    Serial.print("-");
    Serial.print(day());    // Day
    Serial.print(" ");
    Serial.print(hour());   // Hour
    Serial.print(":");
    Serial.print(minute()); // Minutes
    Serial.print(":");
    Serial.print(second()); // Seconds
    Serial.println();
	
    year[i] = year();
    month[i] = month();
    day[i] = day();
    hour[i] = hour();
    minutes[i] = minute();
    sp[i][0] = 20+i;
    set[i][0] = 23;
   }
  for ( int i = 0; i < 123/*NO_OF_POINTS*/; i++)
  {
    t[0].lockedPushOverwrite(23.0+5.0*cos((6.0*3.141*i)/100.0)); 
  }
  
}

void handleRoot();              // function prototypes for HTTP handlers
void handleLogin();
void handleNotFound();
void handleSubmit();


void setup(void)
{
  Serial.begin(115200);         // Start the Serial communication to send messages to the computer
  delay(10);
  Serial.println('\n');

  wifiMulti.addAP("Borgetjernsveien13", "99648882");   // add Wi-Fi networks you want to connect to
  wifiMulti.addAP("Borgetjernsveien13_5G", "99648882");
  wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3");

  Serial.println("Connecting ...");
  int i = 0;
  while (wifiMulti.run() != WL_CONNECTED) { // Wait for the Wi-Fi to connect: scan for Wi-Fi networks, and connect to the strongest of the networks above
    delay(250);
    Serial.print('.');
  }
  Serial.println('\n');
  Serial.print("Connected to ");
  Serial.println(WiFi.SSID());               // Tell us what network we're connected to
  Serial.print("IP address:\t");
  Serial.println(WiFi.localIP());            // Send the IP address of the ESP8266 to the computer

  if (MDNS.begin("esp8266")) {              // Start the mDNS responder for esp8266.local
    Serial.println("mDNS responder started");
  } else {
    Serial.println("Error setting up MDNS responder!");
  }

  server.on("/", HTTP_GET, handleRoot);        // Call the 'handleRoot' function when a client requests URI "/"
  server.on("/login", HTTP_POST, handleLogin); // Call the 'handleLogin' function when a POST request is made to URI "/login"
  server.on("/submit", HTTP_POST, handleSubmit); // Call the 'handleLogin' function when a POST request is made to URI "/login"
  server.onNotFound(handleNotFound);           // When a client requests an unknown URI (i.e. something other than "/"), call function "handleNotFound"

  server.begin();                            // Actually start the server
  Serial.println("HTTP server started");

  // Set the initial time manually (January 1, 2023, 00:00:00)
  simulationTime.Year = 2023 - 1970; // Year since 1970
  simulationTime.Month = 1;
  simulationTime.Day = 1;
  simulationTime.Hour = 0;
  simulationTime.Minute = 0;
  simulationTime.Second = 0;
  setTime(makeTime(simulationTime));  // Set the initial time
  insertData();
}

void loop(void)
{
  server.handleClient();                     // Listen for HTTP requests from clients

  static const unsigned long REFRESH_INTERVAL = 1000; // ms
	static unsigned long lastRefreshTime = 0;
	if(millis() - lastRefreshTime >= REFRESH_INTERVAL)
	{
		lastRefreshTime += REFRESH_INTERVAL;
      Serial.println("looping");

      simulationTime.Minute += 15;
      // Correct for overflow if needed
      if (simulationTime.Minute >= 60) {
        simulationTime.Minute -= 60;
        simulationTime.Hour += 1;
      }
      setTime(makeTime(simulationTime));  // Update the internal time		
      updateData();
      handleRoot(); 
  }
}

int  selectedTemp = 195;
int  selectedZone = 1;
bool selectedMode = 1; //Manual = 0, Auto = 1
  
void handleRoot() 
{
  String heading, tail;
  insertData();

  makeHeading(heading, selectedZone , selectedTemp, selectedMode);
  makeDataFromArray(0/*selectedZone*/ );
  makeTail(tail, selectedZone );
  
  String html =  heading + buffer + tail;

  // When URI / is requested, send a web page with a button to toggle the LED
  // Use https://tomeko.net/online_tools/cpp_text_escape.php?lang=en to convert from html to string
  server.send(200, "text/html", html);   
}

void handleSubmit() 
{ 
  Serial.println("Submit clicked ");
  
  if( !server.hasArg("temps"))
  {
    Serial.println("No argument named: temps!!");
  }
  else
  {
    selectedTemp = (server.arg("temps")).toInt();
    //Serial.println("Selected temp = " + selectedTemp);
  }
  
  if( !server.hasArg("zones"))
  {
    Serial.println("No argument named: zones!!");
  }
  else
  {
    selectedZone = (server.arg("zones")).toInt();
    Serial.println("Selected zone = " + server.arg("zones") );
  }

  if( !server.hasArg("mods"))
  {
    Serial.println("No argument named: mods!!");
  }
  else
  {
    selectedMode= (server.arg("mods")).toInt();
    Serial.println("Selected mods = " + server.arg("mods"));
  }
  handleRoot();
}

void handleLogin() 
{ // If a POST request is made to URI /login
  if( ! server.hasArg("username") || ! server.hasArg("password") 
      || server.arg("username") == NULL || server.arg("password") == NULL) { // If the POST request doesn't have username and password data
    server.send(400, "text/plain", "400: Invalid Request");         // The request is invalid, so send HTTP status 400
    return;
  }
  if(server.arg("username") == "Nils Tore" && server.arg("password") == "password123") 
  { // If both the username and the password are correct
    server.send(200, "text/html", "<h1>Welcome, " + server.arg("username") + "!</h1><p>Login successful</p>");
  } else 
  {                                                                              // Username and password don't match
    server.send(401, "text/plain", "401: Unauthorized");
  }
}

void handleNotFound(){
  server.send(404, "text/plain", "404: Not found"); // Send HTTP status 404 (Not Found) when there's no handler for the URI in the request
}