#ifndef INC_LED_H_
#define INC_LED_H_

#include "main.h"

typedef struct {
	GPIO_TypeDef	*port;
	uint16_t		pinNumber;
	GPIO_PinState	onState;
	GPIO_PinState	offState;
} LED_CONTROL;

void ledInit();

void ledOn(uint8_t num);
void ledOff(uint8_t num);
void ledToggle(uint8_t num);

void ledLeftShift(uint8_t num, uint8_t t);
void ledRightShift(uint8_t num, uint8_t t);
void ledFlower(uint8_t num, uint8_t t);

#endif /* INC_LED_H_ */

// led.c
#include "led.h"

// LED 연결 Port, Pin 정보
LED_CONTROL led[8] = {
	{GPIOB, GPIO_PIN_10, GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOB, GPIO_PIN_4,  GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOB, GPIO_PIN_3,  GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOA, GPIO_PIN_10, GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOA, GPIO_PIN_4,  GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOB, GPIO_PIN_0,  GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOC, GPIO_PIN_1,  GPIO_PIN_SET, GPIO_PIN_RESET},
	{GPIOC, GPIO_PIN_0,  GPIO_PIN_SET, GPIO_PIN_RESET}
};

static uint8_t ledPin = 0;		// 현재 출력  Pin 위치 확인용 변수
static uint8_t ledState = 0;	// Toggle mode 사용 변수

// LED 초기화, 모든 Pin OFF
void ledInit() {
	for (uint8_t i = 0; i < 8; i++) {
		HAL_GPIO_WritePin(led[i].port, led[i].pinNumber, led[i].offState);
	}
	ledPin = 0;
	ledState = 0;
}

// LED 모든 Pin ON
void ledOn(uint8_t num) {
	for (uint8_t i = 0; i < num; i++) {
		HAL_GPIO_WritePin(led[i].port, led[i].pinNumber, led[i].onState);
	}
}

// LED 모든 Pin OFF
void ledOff(uint8_t num) {
	for (uint8_t i = 0; i < num; i++) {
		HAL_GPIO_WritePin(led[i].port, led[i].pinNumber, led[i].offState);
	}
}

// LED 모든 Pin ON, OFF Toggle
void ledToggle(uint8_t num) {
	for (uint8_t i = 0; i < num; i++) {
		HAL_GPIO_TogglePin(led[i].port, led[i].pinNumber);
	}
}

// LED 한칸씩 Left 이동, t 0 바로 이동 / 1 깜빡이며 이동
void ledLeftShift(uint8_t num, uint8_t t) {
	switch (t) {
		case 0:
			if (ledPin <= 0) {
				HAL_GPIO_WritePin(led[0].port, led[0].pinNumber, led[0].onState);
				HAL_GPIO_WritePin(led[num - 1].port, led[num - 1].pinNumber, led[num - 1].offState);
			}
			else {
				HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].onState);
				HAL_GPIO_WritePin(led[ledPin - 1].port, led[ledPin - 1].pinNumber, led[ledPin - 1].offState);
			}

			if (ledPin >= (num - 1)) {
				ledPin = 0;
			}
			else {
				ledPin++;
			}
			break;

		case 1:
			if (ledPin >= (num - 1)) {
				if (ledState == 0) {
					HAL_GPIO_WritePin(led[num - 1].port, led[num - 1].pinNumber, led[num - 1].onState);
					ledState = 1;
				}
				else if (ledState == 1) {
				HAL_GPIO_WritePin(led[num - 1].port, led[num - 1].pinNumber, led[num - 1].offState);
					ledState = 0;
					ledPin = 0;
				}
			}
			else {
				if (ledState == 0) {
					HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].onState);
					ledState = 1;
				}
				else if (ledState == 1) {
					HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].offState);
					ledState = 0;
					ledPin++;
				}
			}
			break;
	}
}

// LED 한칸씩 Right 이동, t 0 바로 이동 / 1 깜빡이며 이동
void ledRightShift(uint8_t num, uint8_t t) {
	switch (t) {
		case 0:
			if (ledPin >= 7) {
				HAL_GPIO_WritePin(led[7].port, led[7].pinNumber, led[7].onState);
				HAL_GPIO_WritePin(led[8 - num].port, led[8 - num].pinNumber, led[8 - num].offState);
			}
			else {
				HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].onState);
				HAL_GPIO_WritePin(led[ledPin + 1].port, led[ledPin + 1].pinNumber, led[ledPin + 1].offState);
			}

			if (ledPin <= (8 - num) ) {
				ledPin = 7;
			}
			else {
				ledPin--;
			}
			break;

		case 1:
			if (ledPin <= (8 - num)) {
				if (ledState == 0) {
					HAL_GPIO_WritePin(led[8 - num].port, led[8 - num].pinNumber, led[8 - num].onState);
					ledState = 1;
				}
				else if (ledState == 1) {
				HAL_GPIO_WritePin(led[8 - num].port, led[8 - num].pinNumber, led[8 - num].offState);
					ledState = 0;
					ledPin = 7;
				}
			}
			else {
				if (ledState == 0) {
					HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].onState);
					ledState = 1;
				}
				else if (ledState == 1) {
					HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].offState);
					ledState = 0;
					ledPin--;
				}
			}
			break;
	}
}

// LED 양방향 왕복 이동, t 0 바로 이동 / 1 깜빡이며 이동
void ledFlower(uint8_t num, uint8_t t) {
	switch (t) {
		case 0:
			if (ledPin == 0) {
				HAL_GPIO_WritePin(led[0].port, led[0].pinNumber, led[0].onState);
				HAL_GPIO_WritePin(led[7].port, led[7].pinNumber, led[7].onState);
				HAL_GPIO_WritePin(led[1].port, led[1].pinNumber, led[1].offState);
				HAL_GPIO_WritePin(led[6].port, led[6].pinNumber, led[6].offState);
				ledPin++;
			}
			else {
				HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].onState);
				HAL_GPIO_WritePin(led[7 - ledPin].port, led[7 - ledPin].pinNumber, led[7 - ledPin].onState);
				HAL_GPIO_WritePin(led[ledPin - 1].port, led[ledPin - 1].pinNumber, led[ledPin - 1].offState);
				HAL_GPIO_WritePin(led[8 - ledPin].port, led[8 - ledPin].pinNumber, led[8 - ledPin].offState);
				if (ledPin == 3) {
					ledPin = 5;
				}
				else if (ledPin == 6) {
					ledPin = 0;
				}
				else {
					ledPin++;
				}
			}
			break;

		case 1:
			if (ledState == 0) {
				HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].onState);
				HAL_GPIO_WritePin(led[7 - ledPin].port, led[7 - ledPin].pinNumber, led[7 - ledPin].onState);
				ledState = 1;
			}
			else if (ledState == 1) {
				HAL_GPIO_WritePin(led[ledPin].port, led[ledPin].pinNumber, led[ledPin].offState);
				HAL_GPIO_WritePin(led[7 - ledPin].port, led[7 - ledPin].pinNumber, led[7 - ledPin].offState);
				ledState = 0;
				if (ledPin >= 6) {
					ledPin = 0;
				}
				else if (ledPin == 3) {
					ledPin = 5;
				}
				else {
					ledPin++;
				}
			}
			break;
	}
}