#include <Wire.h>
//#include <WiFi.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SH110X.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

Adafruit_SH1106G display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

// WiFi
const char* ssid="Wi-Fi";
const char* password="adminadmin";

// Дані
float voltage = 12.5;
float current = 5.3;
float power = 60.0;
float capacity = 100.0;

float current1 = 2.0;
float power1 = 40.0;
float capacity1 = 80.0;

// Іконки (bitmap 16x16)
const unsigned char iconVolt [] PROGMEM = {0x04,0x08,0x08,0x10,0x10,0x3E,0x1C,0x04,0x08,0x08,0x10,0x10,0x08,0x20};
const unsigned char iconAmp [] PROGMEM = {0x3C,0x42,0x81,0x81,0x81,0x81,0x42,0x3C};
const unsigned char iconPower [] PROGMEM = {0x18,0x3C,0x7E,0xFF,0x7E,0x3C,0x18};
const unsigned char iconBattery [] PROGMEM = {0x3E,0x7F,0x41,0x41,0x41,0x41,0x7F,0x3E};
const unsigned char iconWiFi [] PROGMEM = {0x00,0x18,0x24,0x42,0x81,0x00,0x18,0x00,0x3C,0x00,0x7E,0x00,0xFF,0x00};

void drawPanel()
{
  display.clearDisplay();

  display.setTextSize(1);
  display.setTextColor(SH110X_WHITE);

  // ⚡ Напруга
  display.drawBitmap(0,0,iconVolt,16,16,SH110X_WHITE);
  display.drawRect(0,0,60,16,SH110X_WHITE);
  display.setCursor(18,2);
  display.print(voltage,1);
  display.print("V");

  // ⬆ Струм
  display.drawBitmap(0,18,iconAmp,16,16,SH110X_WHITE);
  display.drawRect(0,18,60,16,SH110X_WHITE);
  display.setCursor(18,20);
  display.print(current,1);
  display.print("A");

  // 💡 Потужність
  display.drawBitmap(0,36,iconPower,16,16,SH110X_WHITE);
  display.drawRect(0,36,60,16,SH110X_WHITE);
  display.setCursor(18,38);
  display.print(power,1);
  display.print("W");

  // 🔋 Ємність
  display.drawBitmap(0,54,iconBattery,16,16,SH110X_WHITE);
  display.drawRect(0,54,60,16,SH110X_WHITE);
  display.setCursor(18,56);
  display.print(capacity,0);
  display.print("Wh");

  // Channel 2 - current1
  display.drawBitmap(70,0,iconAmp,16,16,SH110X_WHITE);
  display.drawRect(70,0,58,16,SH110X_WHITE);
  display.setCursor(90,2);
  display.print(current1,1);
  display.print("A");

  // Channel 2 - power1
  display.drawBitmap(70,18,iconPower,16,16,SH110X_WHITE);
  display.drawRect(70,18,58,16,SH110X_WHITE);
  display.setCursor(90,20);
  display.print(power1,1);
  display.print("W");
/*
  // Channel 2 - capacity1
  display.drawBitmap(70,36,iconBattery,16,16,SH110X_WHITE);
  display.drawRect(70,36,58,16,SH110X_WHITE);
  display.setCursor(90,38);
  display.print(capacity1,0);
  display.print("Wh");

  // WiFi
  display.drawBitmap(70,54,iconWiFi,16,16,SH110X_WHITE);
  display.setCursor(90,56);
 // display.print(WiFi.RSSI());
*/
  display.display();
}

void setup()
{
  Serial.begin(115200);

  if(!display.begin(0x3C,true))
  {
    Serial.println("OLED не знайдено");
    while(1);
  }

 // WiFi.begin(ssid,password);
  //while(WiFi.status()!=WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Підключено до WiFi");

  display.clearDisplay();
}

void loop()
{
  // Симуляція зміни даних
  voltage += random(-5,5)*0.01;
  current += random(-5,5)*0.01;
  power += random(-5,5)*0.05;
  capacity += random(-5,5)*0.1;

  current1 += random(-5,5)*0.01;
  power1 += random(-5,5)*0.05;
  capacity1 += random(-5,5)*0.1;

  drawPanel();
  delay(500);
}