#include "stm32f4xx.h"
#include "stm32f4_discovery.h"
int acounter = 0;
int bcounter = 0;
int ccounter = 0;
int a = 0;
int b = 0;
int c = 0;
void TIM5_IRQHandler(void) {
    if(TIM_GetITStatus(TIM5, TIM_IT_Update) != RESET) {
        if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_1) == 1 && a== 0) {
            a = 1;
                }
        if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_1) == 1 && a == 1)
        {
            a = 0;
        }
        if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_2) == 1 && b == 0) {
            b = 1;
                }
        if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_2) == 1 && b == 1)
        {
            b = 0;
        }
        if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_3) == 1 && c== 0) {
            c = 1;
                }
        if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_3) == 1 && c == 1)
        {
            c = 0;
        }

                if(a==1 || b==1 || c==1)
                {
                    TIM_Cmd(TIM3, ENABLE);
                }
                else{
                    TIM_Cmd(TIM3, DISABLE);
                }
        TIM_ClearITPendingBit(TIM5, TIM_IT_Update);
    }
}

void TIM3_IRQHandler(void) {
    if(TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET) {
        if(a == 1)
        {
        GPIO_ToggleBits(GPIOC, GPIO_Pin_6);
        for(int i = 0;i<10000000;i++);
        }
        if(b == 1)
                {
                GPIO_ToggleBits(GPIOC, GPIO_Pin_8);
                for(int i = 0;i<10000000;i++);
                }
        if(c == 1)
                {
                GPIO_ToggleBits(GPIOC, GPIO_Pin_9);
                for(int i = 0;i<10000000;i++);
                }

        TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
    }
}

int main(void) {

    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE); // RGB
    GPIO_InitTypeDef GPIO_InitDef;
    GPIO_InitDef.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_8 | GPIO_Pin_9; // 6-R 8-G 9-B
    GPIO_InitDef.GPIO_Mode = GPIO_Mode_OUT;
    GPIO_InitDef.GPIO_OType = GPIO_OType_PP;
    GPIO_InitDef.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_InitDef.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOC, &GPIO_InitDef);


    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); // buttons
    GPIO_InitTypeDef GPIO_BUTTONS;
    GPIO_BUTTONS.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
    GPIO_BUTTONS.GPIO_Mode = GPIO_Mode_IN;
    GPIO_BUTTONS.GPIO_OType = GPIO_OType_PP;
    GPIO_BUTTONS.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_BUTTONS.GPIO_PuPd = GPIO_PuPd_DOWN;
    GPIO_Init(GPIOA, &GPIO_BUTTONS);

    GPIO_ResetBits(GPIOD, GPIO_Pin_6 | GPIO_Pin_8 | GPIO_Pin_9);

    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); // timer 3

    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
        TIM_TimeBaseStructure.TIM_Period = 9999;
        TIM_TimeBaseStructure.TIM_Prescaler = 2099;
        TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
        TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
        TIM_Cmd(TIM3, ENABLE);

        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); // timer 5
        TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure5;
                TIM_TimeBaseStructure5.TIM_Period = 99;
                TIM_TimeBaseStructure5.TIM_Prescaler = 84;
                TIM_TimeBaseStructure5.TIM_ClockDivision = TIM_CKD_DIV1;
                TIM_TimeBaseStructure5.TIM_CounterMode = TIM_CounterMode_Up;
                TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure5);
                TIM_Cmd(TIM5, ENABLE);
//przerwania tim3
        NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
        NVIC_InitTypeDef NVIC_InitStructure3;
        NVIC_InitStructure3.NVIC_IRQChannel = TIM3_IRQn;
        NVIC_InitStructure3.NVIC_IRQChannelPreemptionPriority = 0x00;
        NVIC_InitStructure3.NVIC_IRQChannelSubPriority = 0x00;
        NVIC_InitStructure3.NVIC_IRQChannelCmd = ENABLE;
            NVIC_Init(&NVIC_InitStructure3);
            TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
            TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
            //przerwania tim5
                    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
                    NVIC_InitTypeDef NVIC_InitStructure;
                        NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn;
                        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x00;
                        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
                        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
                        NVIC_Init(&NVIC_InitStructure);
                        TIM_ClearITPendingBit(TIM5, TIM_IT_Update);
                        TIM_ITConfig(TIM5, TIM_IT_Update, ENABLE);

    for(;;) {

    }

}