#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <stdlib.h>
#include <string.h>

#define OC1A PB5
#define OC3A PE3
#define OC4A PH3

volatile uint16_t redValue = 0;
volatile uint16_t greenValue = 0;
volatile uint16_t blueValue = 0;

void port_ini(void)
{
    PORTB = 0x00;              // Clear PORTB
    DDRB = (1<<OC1A);          // Set PB5 as output
    DDRE = (1<<OC3A);          // Set PE3 as output
    DDRH = (1<<OC4A);          // Set PH3 as output
}

void pwm_timer_init(void)
{
    // Timer 1 configuration for red channel
    TCCR1A = (1 << COM1A1) | (0 << COM1A0)   /* Clear OCA on Compare Match, set OCA on BOTTOM (non-inverting mode) */
             | (0 << COM1B1) | (0 << COM1B0) /* Normal port operation, OCB disconnected */
             | (1 << WGM11) | (1 << WGM10);  /* TC16 Mode 7 Fast 10-bit PWM */

    TCCR1B = (0 << WGM13) | (1 << WGM12)                /* TC16 Mode 7 Fast 10-bit PWM */
             | 0 << ICNC1                               /* Input Capture Noise Canceler: disabled */
             | 0 << ICES1                               /* Input Capture Edge Select: disabled */
             | (0 << CS12) | (1 << CS11) | (1 << CS10); /* IO clock divided by 64 */

    OCR1A = 1; /* Output compare A: 0x64 */

    TIMSK1 = 0 << OCIE1B   /* Output Compare B Match Interrupt Enable: disabled */
             | 1 << OCIE1A /* Output Compare A Match Interrupt Enable: enabled */
             | 0 << ICIE1  /* Input Capture Interrupt Enable: disabled */
             | 1 << TOIE1; /* Overflow Interrupt Enable: enabled */

    // Timer 3 configuration for green channel
    TCCR3A = (1 << COM3A1) | (0 << COM3A0)   /* Clear OCA on Compare Match, set OCA on BOTTOM (non-inverting mode) */
             | (0 << COM3B1) | (0 << COM3B0) /* Normal port operation, OCB disconnected */
             | (1 << WGM31) | (1 << WGM30);  /* TC16 Mode 7 Fast 10-bit PWM */

    TCCR3B = (0 << WGM33) | (1 << WGM32)                /* TC16 Mode 7 Fast 10-bit PWM */
             | 0 << ICNC3                               /* Input Capture Noise Canceler: disabled */
             | 0 << ICES3                               /* Input Capture Edge Select: disabled */
             | (0 << CS32) | (1 << CS31) | (1 << CS30); /* IO clock divided by 64 */

    OCR3A = 1; /* Output compare A: 0x64 */

    TIMSK3 = 0 << OCIE3B   /* Output Compare B Match Interrupt Enable: disabled */
             | 1 << OCIE3A /* Output Compare A Match Interrupt Enable: enabled */
             | 0 << ICIE3  /* Input Capture Interrupt Enable: disabled */
             | 1 << TOIE3; /* Overflow Interrupt Enable: enabled */

    // Timer 4 configuration for blue channel
    TCCR4A = (1 << COM4A1) | (0 << COM4A0)   /* Clear OCA on Compare Match, set OCA on BOTTOM (non-inverting mode) */
             | (0 << COM4B1) | (0 << COM4B0) /* Normal port operation, OCB disconnected */
             | (1 << WGM41) | (1 << WGM40);  /* TC16 Mode 7 Fast 10-bit PWM */

    TCCR4B = (0 << WGM43) | (1 << WGM42)                /* TC16 Mode 7 Fast 10-bit PWM */
             | 0 << ICNC4                               /* Input Capture Noise Canceler: disabled */
             | 0 << ICES4                               /* Input Capture Edge Select: disabled */
             | (0 << CS42) | (1 << CS41) | (1 << CS40); /* IO clock divided by 64 */

    OCR4A = 1; /* Output compare A: 0x64 */

    TIMSK4 = 0 << OCIE4B   /* Output Compare B Match Interrupt Enable: disabled */
             | 1 << OCIE4A /* Output Compare A Match Interrupt Enable: enabled */
             | 0 << ICIE4  /* Input Capture Interrupt Enable: disabled */
             | 1 << TOIE4; /* Overflow Interrupt Enable: enabled */
}

void setColor(const char *color)
{
    long number = strtol(color, NULL, 16);
    redValue = ((number >> 16) & 0xFF) * 1023 / 255;
    greenValue = ((number >> 8) & 0xFF) * 1023 / 255;
    blueValue = (number & 0xFF) * 1023 / 255;

    OCR1A = redValue;
    OCR3A = greenValue;
    OCR4A = blueValue;

    if (OCR1A == 0)
        OCR1A = 1; // Set OCR1A to 1 if it is 0

    if (OCR3A == 0)
        OCR3A = 1; // Set OCR3A to 1 if it is 0

    if (OCR4A == 0)
        OCR4A = 1; // Set OCR4A to 1 if it is 0
}

void setup()
{
    sei();
    port_ini();                  // Initialize ports
    pwm_timer_init();           // Initialize PWM timer
}

void loop()
{
    char buffer[7]; // Buffer to hold the incoming color code
    int index = 0;

    while (1)
    {
        char c = getchar(); // Read a character from the serial port
        if (c == '\n' || c == '\r')
        {
            buffer[index] = '\0'; // Null-terminate the string
            setColor(buffer); // Set the color based on the received code
            index = 0; // Reset the index for the next input
        }
        else
        {
            buffer[index++] = c; // Add the character to the buffer
        }
    }
}

ISR(TIMER1_OVF_vect)
{
    // Handle Timer 1 overflow interrupt
}

ISR(TIMER1_COMPA_vect)
{
    // Handle Timer 1 compare match A interrupt
}

ISR(TIMER3_OVF_vect)
{
    // Handle Timer 3 overflow interrupt
}

ISR(TIMER3_COMPA_vect)
{
    // Handle Timer 3 compare match A interrupt
}

ISR(TIMER4_OVF_vect)
{
    // Handle Timer 4 overflow interrupt
}

ISR(TIMER4_COMPA_vect)
{
    // Handle Timer 4 compare match A interrupt
}

int main(void)
{
    setup();
    loop();
    return 0;
}
#define OC1A PB5
// #define OC3A PB6
// #define OC4A PB7
#define OC3A PE3//
#define OC4A PH3//RED


volatile uint16_t redValue = 0;
volatile uint16_t greenValue = 0;
volatile uint16_t blueValue = 0;

void port_ini(void) 
{
    PORTB = 0x00;              // Clear PORTB
    DDRB = (1<<OC1A) | (1<<OC3A) | (1<<OC4A); // Set PB5, PB6, PB7 as output (assuming these are the PWM output pins)
DDRE=(1<<OC3A);
DDRH=(1<<OC4A);
Serial.begin(115200);
}

void pwm_timer_init(void) 
{
    // Timer 1 configuration for red channel
    TCCR1A = (1 << COM1A1) | (0 << COM1A0)   /* Clear OCA on Compare Match, set OCA on BOTTOM (non-inverting mode) */
             | (0 << COM1B1) | (0 << COM1B0) /* Normal port operation, OCB disconnected */
             | (1 << WGM11) | (1 << WGM10);  /* TC16 Mode 7 Fast 10-bit PWM */

    TCCR1B = (0 << WGM13) | (1 << WGM12)                /* TC16 Mode 7 Fast 10-bit PWM */
             | 0 << ICNC1                               /* Input Capture Noise Canceler: disabled */
             | 0 << ICES1                               /* Input Capture Edge Select: disabled */
             | (0 << CS12) | (1 << CS11) | (1 << CS10); /* IO clock divided by 64 */

    OCR1A = 1; /* Output compare A: 0x64 */

    TIMSK1 = 0 << OCIE1B   /* Output Compare B Match Interrupt Enable: disabled */
             | 1 << OCIE1A /* Output Compare A Match Interrupt Enable: enabled */
             | 0 << ICIE1  /* Input Capture Interrupt Enable: disabled */
             | 1 << TOIE1; /* Overflow Interrupt Enable: enabled */

    // Timer 3 configuration for green channel
    TCCR3A = (1 << COM3A1) | (0 << COM3A0)   /* Clear OCA on Compare Match, set OCA on BOTTOM (non-inverting mode) */
             | (0 << COM3B1) | (0 << COM3B0) /* Normal port operation, OCB disconnected */
             | (1 << WGM31) | (1 << WGM30);  /* TC16 Mode 7 Fast 10-bit PWM */

    TCCR3B = (0 << WGM33) | (1 << WGM32)                /* TC16 Mode 7 Fast 10-bit PWM */
             | 0 << ICNC3                               /* Input Capture Noise Canceler: disabled */
             | 0 << ICES3                               /* Input Capture Edge Select: disabled */
             | (0 << CS32) | (1 << CS31) | (1 << CS30); /* IO clock divided by 64 */

    OCR3A = 1; /* Output compare A: 0x64 */

    TIMSK3 = 0 << OCIE3B   /* Output Compare B Match Interrupt Enable: disabled */
             | 1 << OCIE3A /* Output Compare A Match Interrupt Enable: enabled */
             | 0 << ICIE3  /* Input Capture Interrupt Enable: disabled */
             | 1 << TOIE3; /* Overflow Interrupt Enable: enabled */

    // Timer 4 configuration for blue channel
    TCCR4A = (1 << COM4A1) | (0 << COM4A0)   /* Clear OCA on Compare Match, set OCA on BOTTOM (non-inverting mode) */
             | (0 << COM4B1) | (0 << COM4B0) /* Normal port operation, OCB disconnected */
             | (1 << WGM41) | (1 << WGM40);  /* TC16 Mode 7 Fast 10-bit PWM */

    TCCR4B = (0 << WGM43) | (1 << WGM42)                /* TC16 Mode 7 Fast 10-bit PWM */
             | 0 << ICNC4                               /* Input Capture Noise Canceler: disabled */
             | 0 << ICES4                               /* Input Capture Edge Select: disabled */
             | (0 << CS42) | (1 << CS41) | (1 << CS40); /* IO clock divided by 64 */

    OCR4A = 1; /* Output compare A: 0x64 */

    TIMSK4 = 0 << OCIE4B   /* Output Compare B Match Interrupt Enable: disabled */
             | 1 << OCIE4A /* Output Compare A Match Interrupt Enable: enabled */
             | 0 << ICIE4  /* Input Capture Interrupt Enable: disabled */
             | 1 << TOIE4; /* Overflow Interrupt Enable: enabled */
}

void setColor(const char *color) 
{
    long number = strtol(color, NULL, 16);
    redValue = (number >> 16) & 0xFF;
    greenValue = (number >> 8) & 0xFF;
    blueValue = number & 0xFF0;

    // Mise à l'échelle des valeurs pour PWM (0-255)
    // redValue = (redValue * 1023) / 255;
    // greenValue = (greenValue * 1023) / 255;
    // blueValue = (blueValue * 1023) / 255;

    OCR1A = redValue+1;
    OCR3A = greenValue+1;
    OCR4A = blueValue+1;
}

int main(void) 
{
    sei();
    port_ini();                  // Initialize ports
    pwm_timer_init();           // Initialize PWM timer

    // Example command
    // setColor("FF0000"); // Set red color
    // setColor("00FF00"); //Set green color
    // setColor("0000FF"); // Set blue color

    while(1) 
    { 
        setColor("ffffff"); // Set red color
        _delay_ms(1000);
        setColor("FFFF00"); 
        _delay_ms(1000); 
    //     Serial.println(OCR1A);
    //      Serial.println(OCR3A);
    //      Serial.println(OCR4A);
    // setColor("00FF00"); //Set green color
    // _delay_ms(1000);
    //   Serial.println(OCR1A);
    //      Serial.println(OCR3A);
    //      Serial.println(OCR4A);
    // setColor("0000FF"); // Set blue color
    // _delay_ms(1000);
    //  Serial.println(OCR1A);
    //      Serial.println(OCR3A);
    //      Serial.println(OCR4A);
          // Boucle principale vide
    }
}

ISR(TIMER1_OVF_vect) 
{
    // Handle Timer 1 overflow interrupt
}

ISR(TIMER1_COMPA_vect) 
{
    // Handle Timer 1 compare match A interrupt
}

ISR(TIMER3_OVF_vect) 
{
    // Handle Timer 3 overflow interrupt
}

ISR(TIMER3_COMPA_vect) 
{
    // Handle Timer 3 compare match A interrupt
}

ISR(TIMER4_OVF_vect) 
{
    // Handle Timer 4 overflow interrupt
}

ISR(TIMER4_COMPA_vect) 
{
    // Handle Timer 4 compare match A interrupt
}



// 1) ЗАЖЕЧЬ rgb СВЕТОДИОД С ПОМОЩЬЮ ТРЕХ ТАЙМЕРОВБ И МЕНЯТ Ь ЕГО ОТТЕНОК В ЗАВИСИМОСТИ ОТ ПРИНЯТОЙ КОМАНДЫ В ФОРМАТЕ "RRGGBB"