#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

#include <RotaryEncoder.h> //https://github.com/mathertel/RotaryEncoder


#define PIN_IN1 4
#define PIN_IN2 3


RotaryEncoder encoder(PIN_IN1, PIN_IN2, RotaryEncoder::LatchMode::TWO03);

// For the Adafruit shield, these are the default.
#define TFT_DC 9
#define TFT_CS 10
#define TFT_RST 8
#define TFT_MISO 12
#define TFT_MOSI 11
#define TFT_CLK 13

// Use hardware SPI (on Uno, #13, #12, #11) and the above for CS/DC
// Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
// If using the breakout, change pins as desired
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_MOSI, TFT_CLK, TFT_RST, TFT_MISO);


#define color1 0xC638
#define color2 0xC638

int value = 980;
int minimal = 880;
int maximal = 1080;
int strength = 0;
String sta[6] = {"96.6", "101.0", "89.4", "106,5", "98.2", "92.4"};

bool muted = 0;
int deb = 0;
float freq = 89.25;


void setup() {

  tft.begin();

  tft.fillScreen(ILI9341_BLACK);
  yield();

  tft.setRotation(1);

  drawSprite();

}

void loop()
{

  readEncoder();

}


void readEncoder()
{

  static int pos = 0;
  encoder.tick();

  if (digitalRead(2) == 0)
  {
    if (deb == 0)
    {
      deb = 1;
      muted = !muted;
      //radio.setMuted(muted);
      drawSprite();
      delay(200);
    }
  } else deb = 0;

  int newPos = encoder.getPosition();
  if (pos != newPos)
  {

    if (newPos > pos)
    {
      value = value - 1;
    }
    if (newPos < pos)
    {
      value = value + 1;
    }
    pos = newPos;

    drawSprite();
  }
}


void drawSprite()
{
  freq = value / 10.00;
  if (muted == false)
  {
    //radio.setFrequency(freq);
  }
  //strength = radio.getSignalLevel();
  strength = 9;


  tft.setTextColor(ILI9341_CYAN, ILI9341_BLACK);
  tft.setTextSize(4);
  tft.setCursor(10, 50);

  tft.print(freq);
  tft.setTextSize(2);

  tft.setCursor(260, 60);
  tft.print("MHz");

  tft.setCursor(10, 6);
  tft.setTextColor(ILI9341_ORANGE, ILI9341_BLACK);
  tft.print("TEA5767 - FM Radio");
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);

  tft.drawRoundRect(186, 142, 128, 32, 8, ILI9341_WHITE);

  tft.drawRect(290, 6, 20, 9, ILI9341_WHITE);
  tft.fillRect(291, 7, 12, 7, 0x34CD);
  tft.fillRect(310, 8, 2, 5, ILI9341_WHITE);

  tft.setTextColor(0xBEDF, ILI9341_BLACK);

  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);
  tft.setCursor(10, 128);
  tft.print("SEMNAL:");
  tft.setCursor(10, 164);
  tft.print("MUTE");
  tft.fillRoundRect(80, 152, 40, 40, 6, 0xCC40);

  if (muted == 1)
  {
    tft.fillCircle(100, 170, 12, ILI9341_WHITE);
  }

  //nivel semnal
  for (int i = 0; i < strength; i++)
  {
    tft.fillRect(120 + (i * 4), 130 - (i * 2), 4, 8 + (i * 2), 0x3526);
  }

  tft.fillTriangle(152, 168, 160, 188, 168, 168, ILI9341_RED);


  int temp = value - 40;
  for (int i = 0; i < 40; i++)
  {
    if ((temp % 10) == 0)
    {
      tft.drawLine(i * 8, 256, i * 8, 220, color1);


      tft.drawLine((i * 8) + 2, 256, (i * 8) + 2, 220, color1);
      tft.setCursor(i * 8, 196);
      tft.setTextSize(1);
      tft.print (temp / 10.0);
    }
    else if ((temp % 5) == 0 && (temp % 10) != 0)
    { tft.drawLine(i * 8, 256, i * 8, 230, color1);
      tft.drawLine((i * 8) + 2, 256, (i * 8) + 2, 230, color1);

    }
    else
    {
      tft.drawLine(i * 8, 256, i * 8, 236, color1);
    }

    temp = temp + 2;
  }
  tft.setCursor(200, 150);
  tft.print("Stereo: ");
  //tft.print("Stereo: " + String(radio.isStereo()));

  tft.drawLine(160, 168, 160, 256, ILI9341_RED);

}