//Weather API:
//https://randomnerdtutorials.com/esp32-http-get-open-weather-map-thingspeak-arduino/
//http://api.openweathermap.org/data/2.5/weather?q=Kleinmond,za&APPID=ecc1d9b72d3955500709d76126597b09



//MCU = ESP32 DEVKIT V1

//=========================================================================
//ILI9341 OLED Display Connections
//=========================================================================
//MCU         Display Pin
//----------------------------
//VIN         1 (VCC)
//GND         2 (GND)
//D15         3 (CS)
//D4          4 (RST)
//D2          5 (D/C)
//D23         6 (MOSI)
//D18         7 (SCK)
//            8 Not connected
//D19         9 (MISO)


//=========================================================================
//Includes
//=========================================================================
#include <WiFi.h>               //Library to connect to Wifi
#include <HTTPClient.h>         //Library to connect to Internet
#include <ArduinoJson.h>        //Library for JSON
#include <Adafruit_GFX.h>       //Library for ILI9341 Oled display
#include <Adafruit_ILI9341.h>   //Library for ILI9341 Oled display



//=========================================================================
//Constants/Defines
//=========================================================================
//The wifi ssid to use while working in this simulator, later change to 'Jacques'
const char* ssid = "Wokwi-GUEST";  

//The wifi password to use while working in this simulator, later change to 'kleinmond30100'
const char* password = "";

//const String url = "https://v2.jokeapi.dev/joke/Programming";
//const String url = "https://golfanywhere.co.za/WebService/Database.asmx/GetCountries?CountryID=";

const char* host = "golfanywhere.co.za";
const char* url = "/WebService/Database.asmx/GetCountries?CountryID=";

#define TFT_DC 2    //For display.
#define TFT_CS 15   //For display.



//=========================================================================
//Variable Declares
//=========================================================================
Adafruit_ILI9341 Display = Adafruit_ILI9341(TFT_CS, TFT_DC);     //Display.




//===================================================================================
//S E T U P
//===================================================================================
void setup() {
  
  Serial.begin(115200);   //For debugging.

  setupDisplay();
  connectToWifi();

  getJSON();

}


//===================================================================================
//M A I N  L O O P.
//===================================================================================
void loop() 
{
 
    //tft.fillScreen(ILI9341_BLACK);
    //tft.setCursor(0, 0);
    
}


//===================================================================================
void setupDisplay()
{
  Display.begin();
  Display.setRotation(1);                //Landscape.
  Display.setTextColor(ILI9341_WHITE);
  Display.setTextSize(2);
}


//===================================================================================
void connectToWifi()
{
   String str1;
   String str2;
   String str3;

   Display.fillScreen(ILI9341_BLACK);   //Clear screen.
   Display.setCursor(0, 0);
  
   str1 = "Connecting to ";
   str2 = str1 + ssid + "...";
   Display.print(str2);

   WiFi.begin(ssid, password, 6);          //Connect to Wifi.
   while (WiFi.status() != WL_CONNECTED) 
   {}

   Display.fillScreen(ILI9341_BLACK);   //Clear screen.
   Display.setCursor(0, 0);
  
   IPAddress localIP = WiFi.localIP();
   str1 = "Connected to ";
   str2 = localIP.toString();
   str3 = str1 + str2;
   Display.print(str3);
  
}


//===================================================================================
void getJSON() {

  HTTPClient http;
  http.begin("https://" + String(host) + url);

  int httpCode = http.GET();

  if (httpCode > 0) {

    String payload = http.getString();

    //Response =
    //{"Table":[{"id_GolfBookingCountry":1,"nvcGolfBookingCountry":"South Africa"},{"id_GolfBookingCountry":2,"nvcGolfBookingCountry":"South African Agents"}]}

    Serial.println(payload);

    // Parse the JSON response
    DynamicJsonDocument doc(1024);
    DeserializationError error = deserializeJson(doc, payload);
    if (error) {
      Serial.println("Deserialization failed: " + String(error.c_str()));
      //return;
    }

    JsonArray table = doc["Table"];
    for (int i = 0; i < table.size(); i++) {
      JsonObject country = table[i];
      int id = country["id_GolfBookingCountry"];
      String name = country["nvcGolfBookingCountry"];
      Serial.println("id: " + String(id) + ", name: " + name);
    }

  } 
  else 
  {
    Serial.println("Error on HTTP request");
  }

  http.end();
 
}