#define BUTTON1_PIN 3   //tlačítko panel PC1
#define USB1_PIN 6      //USB PC1
#define LED1_PIN 4      //napájanie 230V PC1
#define LED2_PIN 5      //tlačítko ON na PC1
#define BUTTON2_PIN 22  //tlačítko panel PC2
#define USB2_PIN 23     //USB PC2
#define LED3_PIN 24     //napájanie 230V PC2
#define LED4_PIN 25     //tlačítko ON na PC2
#define BUTTON3_PIN 26  //tlačítko panel M1
#define LED5_PIN 27     //napájanie 230V M1
#define BUTTON4_PIN 28  //tlačítko panel M2
#define LED6_PIN 29     //napájanie 230V M2
#define BUTTON5_PIN 30  //tlačítko panel 7.1
#define LED7_PIN 31     //napájanie 230V 7.1

byte lastButton1State = LOW;
byte lastUSB1State = LOW;
byte led1State = LOW;
byte led2State = LOW;
byte lastButton2State = LOW;
byte lastUSB2State = LOW;
byte led3State = LOW;
byte led4State = LOW;
byte lastButton3State = LOW;
byte led5State = LOW;
byte lastButton4State = LOW;
byte led6State = LOW;
byte lastButton5State = LOW;
byte led7State = LOW;

unsigned long debounceDuration = 50; // millis
unsigned long lastTimeButtonStateChanged = 0;

void setup() {
  pinMode(BUTTON1_PIN, INPUT);
  pinMode(USB1_PIN, INPUT);
  pinMode(LED1_PIN, OUTPUT);
  pinMode(LED2_PIN, OUTPUT); 
  pinMode(BUTTON2_PIN, INPUT);
  pinMode(USB2_PIN, INPUT);
  pinMode(LED3_PIN, OUTPUT);
  pinMode(LED4_PIN, OUTPUT);
  pinMode(BUTTON3_PIN, INPUT);
  pinMode(LED5_PIN, OUTPUT);
  pinMode(BUTTON4_PIN, INPUT);
  pinMode(LED6_PIN, OUTPUT);
  pinMode(BUTTON5_PIN, INPUT);
  pinMode(LED7_PIN, OUTPUT);
}

void loop() {
  //Tlačítko PC1 ON
  if(digitalRead(BUTTON1_PIN) == HIGH && digitalRead(USB1_PIN) == LOW && digitalRead(LED1_PIN) == LOW) {
   digitalWrite(LED1_PIN, HIGH); // PC1 ON
   delay(1000);
   digitalWrite(LED2_PIN, HIGH); // PC1 Tl. ON 1/2
   delay(500);
   digitalWrite(LED2_PIN, LOW); // PC1 Tl. ON 2/2
   delay(4000);
   if(digitalRead(USB1_PIN) == LOW && digitalRead(LED1_PIN) == HIGH) {
     digitalWrite(LED1_PIN, LOW); // PC1 OFF počítač nenabehol
  }
  else {
        digitalWrite(LED5_PIN, led5State);
        digitalWrite(LED5_PIN, HIGH); // M1 ON
        led5State = (led5State == HIGH) ? LOW: HIGH;
        delay(300);
		    digitalWrite(LED6_PIN, led6State);
        digitalWrite(LED6_PIN, HIGH); // M2 ON
        led6State = (led6State == HIGH) ? LOW: HIGH;
        delay(900);
		    digitalWrite(LED7_PIN, led7State);
        digitalWrite(LED7_PIN, HIGH); // 7.1 ON
        led7State = (led7State == HIGH) ? LOW: HIGH;
  }
 }
  //Tlačítko PC1 OFF
  if(digitalRead(BUTTON1_PIN) == HIGH && digitalRead(USB1_PIN) == HIGH && digitalRead(LED1_PIN) == HIGH) {
   delay(100);
   digitalWrite(LED2_PIN, HIGH); // PC1 Tl. ON 1/2
   delay(500);
   digitalWrite(LED2_PIN, LOW); // PC1 Tl. ON 2/2
  }
   if(digitalRead(USB1_PIN) == LOW && digitalRead(LED1_PIN) == HIGH) {
    delay(500);
    digitalWrite(LED7_PIN, led7State); // 7.1 OFF
    digitalWrite(LED7_PIN, LOW);
    led7State = (led7State == HIGH) ? LOW: HIGH;
    delay(500);
    digitalWrite(LED1_PIN, LOW); // PC1 OFF
    led1State = (led1State == HIGH) ? LOW: HIGH;
    digitalWrite(LED1_PIN, led1State);
    delay(500);
    digitalWrite(LED6_PIN, led6State); // M2 OFF
    digitalWrite(LED6_PIN, LOW);
    led6State = (led6State == HIGH) ? LOW: HIGH;
    delay(500);
    digitalWrite(LED5_PIN, led5State); // M1 OFF
    digitalWrite(LED5_PIN, LOW);
    led5State = (led5State == HIGH) ? LOW: HIGH;
  }
  
  // Tlačítko 7.1
  if(digitalRead(BUTTON5_PIN) == HIGH) {
    if (millis() - lastTimeButtonStateChanged > debounceDuration) {
    byte buttonState = digitalRead(BUTTON5_PIN);
      if (buttonState != lastButton5State) {
      lastTimeButtonStateChanged = millis();
      lastButton5State = buttonState;
      if (buttonState == LOW) {
        led7State = (led7State == HIGH) ? LOW: HIGH;
        digitalWrite(LED7_PIN, led7State);
      }
    }
  }  
 }
}