#include "AiEsp32RotaryEncoder.h"
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <pgmspace.h>
#define ROTARY_ENCODER_A_PIN 35
#define ROTARY_ENCODER_B_PIN 32
#define ROTARY_ENCODER_BUTTON_PIN 33
#define ROTARY_ENCODER_STEPS 4
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define SCREEN_ADDRESS 0x3c
AiEsp32RotaryEncoder rotaryEncoder = AiEsp32RotaryEncoder(ROTARY_ENCODER_A_PIN, ROTARY_ENCODER_B_PIN, ROTARY_ENCODER_BUTTON_PIN, -1, ROTARY_ENCODER_STEPS);
int state=0;
bool button_state=false;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire,-1);


const uint8_t temperatureLogo[] PROGMEM = {
  0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x3C,
  0x7E, 0x7E, 0x7E, 0x7E, 0xFF, 0xFF, 0xE7, 0xE7,
  0xC3, 0xC3, 0x81, 0x81, 0x81, 0x81, 0x00, 0x00,
  0x3C, 0x3C, 0x7E, 0x7E, 0x7E, 0x7E, 0x3C, 0x3C
};

const uint8_t humidityIcon[] PROGMEM = {
  0x00, 0x00, 0x07, 0xE0, 0x0F, 0xF0, 0x1C, 0x38, 0x38, 0x1C, 0x30, 0x0C, 
  0x70, 0x0E, 0x60, 0x06, 0xE0, 0x07, 0xE0, 0x07, 0xF0, 0x0F, 0x70, 0x0E, 
  0x38, 0x1C, 0x1E, 0x78, 0x0F, 0xF0, 0x03, 0xC0
};

const uint8_t settingsIcon[] PROGMEM = {
  0x00, 0x00, 0x38, 0x1C, 0x7C, 0x3E, 0x66, 0x66, 0xC3, 0xC3, 0xE7, 0xE7, 
  0x7E, 0x3C, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x7E, 0xE7, 0xE7, 0xC3, 0xC3, 
  0x66, 0x66, 0x7C, 0x3E, 0x38, 0x1C, 0x00, 0x00
};

const uint8_t webBrowserIcon[] PROGMEM = {
  0x00, 0x00, 0x3C, 0x3C, 0x66, 0x66, 0xC3, 0xC3, 0xC3, 0xC3, 0xDB, 0xDB, 
  0xDB, 0xDB, 0xFF, 0xFF, 0xFF, 0xFF, 0xDB, 0xDB, 0xDB, 0xDB, 0xC3, 0xC3, 
  0xC3, 0xC3, 0x66, 0x66, 0x3C, 0x3C, 0x00, 0x00
};

void IRAM_ATTR readEncoderISR()
{
    rotaryEncoder.readEncoder_ISR();
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S2!");
  rotaryEncoder.begin();
  rotaryEncoder.setup(readEncoderISR);
  rotaryEncoder.setBoundaries(0,4,false);
  rotaryEncoder.setAcceleration(250);
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0,0);
  display.print("Hello world");
  display.display();
  delay(500);
  display.clearDisplay();
  display.display();
}

void loop() {
  
  if(rotaryEncoder.encoderChanged()){
    //Serial.println(rotaryEncoder.readEncoder());
    state=rotaryEncoder.readEncoder();
  }
  if (rotaryEncoder.isEncoderButtonClicked())
    {
      button_state=!button_state;
        Serial.println("button pressed");}
  switch(state){
   case 0:
    
    if(button_state==true){
      display.clearDisplay();
      display.setTextSize(1);
      display.setTextColor(SSD1306_WHITE);
      display.drawBitmap(56, 10, temperatureLogo, 16, 16, SSD1306_WHITE);
      display.setCursor(56,13);
      display.print("12 'C ");
      display.display();
      delay(200);
    }
    else{
      display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(0,0);
    display.drawBitmap(56, 24, temperatureLogo, 16, 16, SSD1306_WHITE);
    display.display();
    delay(200);
    }
    
    //Serial.println("Temprature");
    break;
   case 1:
   display.clearDisplay();
   display.setTextSize(1);
   display.setTextColor(SSD1306_WHITE);
   display.setCursor(0,0);
   //display.print("Humidity");
   display.drawBitmap(56,24,humidityIcon,16,16,SSD1306_WHITE);
   display.display();
   //Serial.println("humidity");
   delay(200);
    break;
  case 2:
   display.clearDisplay();
   display.setTextSize(1);
   display.setTextColor(SSD1306_WHITE);
   display.setCursor(0,0);
  display.drawBitmap(56,24,settingsIcon,16,16,SSD1306_WHITE);

   display.display();
   //Serial.println("Settings");
  delay(200);
    break;
  case 3:
   display.clearDisplay();
   display.setTextSize(1);
   display.setTextColor(SSD1306_WHITE);
   display.setCursor(0,0);
   display.drawBitmap(56, 24, webBrowserIcon, 16, 16, SSD1306_WHITE);
   display.display();
   //Serial.println("Request Server");
  delay(200);
    break;
  case 4:
   display.clearDisplay();
   display.setTextSize(1);
   display.setTextColor(SSD1306_WHITE);
   display.setCursor(0,0);
   display.print("WhatElse");
   display.display();
   //Serial.println("What else");
  delay(200);

    break;
  default:
  display.clearDisplay();
   display.setTextSize(1);
   display.setTextColor(SSD1306_WHITE);
   display.setCursor(0,0);
   display.print("Switch to change options");
   display.display();
   //Serial.println("switch  to change options");
  delay(200);
  }
  
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}