/*
 * breadboard.c
 *
 *  Created on: Sep 17, 2025
 *      Author: ja
 */

/*
 * #define RedLight_Pin GPIO_PIN_2
 * #define RedLight_GPIO_Port GPIOE
 *
 * #define YellowLight_Pin GPIO_PIN_3
 * #define YellowLight_GPIO_Port GPIOE
 *
 * #define GreenLight_Pin GPIO_PIN_4
 * #define GreenLight_GPIO_Port GPIOE
 *
 * RedLight:	PE2
 * YellowLight:	PE3
 * GreenLight:	PE4
 * WalkLight:	PE5
 *
 * Done: Traffic Light
 * TODO: Light Dimmer
 */

#include "main.h"
#include "breadboard.h"

#define R_Pin RedLight_Pin
#define Y_Pin YellowLight_Pin
#define G_Pin GreenLight_Pin
#define W_Pin WalkLight_Pin

#define R_Prt RedLight_GPIO_Port
#define Y_Prt YellowLight_GPIO_Port
#define G_Prt GreenLight_GPIO_Port
#define W_Prt WalkLight_GPIO_Port

uint32_t trafftick_last;
uint32_t walktick_last;

uint8_t trafflight_index = 0;

void
starttick(void)
{
	trafftick_last = HAL_GetTick();
	walktick_last = HAL_GetTick();
}

void
trafflight(int traffSPD, int walkSPD)
{
	uint32_t trafftick_curr = HAL_GetTick();

	if ((trafftick_curr - trafftick_last) >= traffSPD) {
		HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_RESET);
		HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_RESET);
		HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_RESET);

		switch (trafflight_index) {
		case 0:
			HAL_GPIO_WritePin(G_Prt, G_Pin, GPIO_PIN_SET);
			break;
		case 1:
			HAL_GPIO_WritePin(Y_Prt, Y_Pin, GPIO_PIN_SET);
			break;
		case 2:
			HAL_GPIO_WritePin(R_Prt, R_Pin, GPIO_PIN_SET);
		}

		trafflight_index = (trafflight_index + 1) % 3;
		trafftick_last = trafftick_curr;
	}

	if ((trafftick_curr - walktick_last) >= walkSPD) {
		HAL_GPIO_TogglePin(W_Prt, W_Pin);
		walktick_last = trafftick_curr;
	}
}