/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "tim.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "OLED.h"
#include "rtc.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
uint8_t show;
uint8_t key;
uint8_t a_hour = 7,a_min = 0,a_sec = 0;
uint8_t alarm_flag = 0;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void main_sc(void)  //主界面
{
	OLED_Clear();
	OLED_ShowString(2,4,"    -  -");
	OLED_ShowString(3,5,"  :  :");
}

uint8_t key_scan(void)  //检测按键
{
	uint8_t keynum = 0;
	if(!HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_12))
	{
		HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_RESET);
		HAL_Delay(20);
		HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET);
		while(!HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_12));
		HAL_Delay(10);
		keynum = 1;
	}
	else if(!HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_13))
	{
		HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_RESET);
		HAL_Delay(20);
		HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET);
		while(!HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_13));
		HAL_Delay(10);
		keynum = 2;
	}
	else if(!HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_15))
	{
		HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_RESET);
		HAL_Delay(20);
		HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET);
		while(!HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_15));
		HAL_Delay(10);
		keynum = 3;
	}
	return keynum;
}

void set_time(void)  //设置时间
{
	uint8_t set_s = 0;
	OLED_Clear();
	OLED_ShowString(1,1,"    Set Time");
	OLED_ShowString(2,4,"    -  -");
	OLED_ShowString(3,5,"  :  :");
	while(1)
	{
		if(show)
		{
			switch(set_s)
			{
				case 0:OLED_ShowString(2,4,"    ");break;
				case 1:OLED_ShowString(2,9,"  ");break;
				case 2:OLED_ShowString(2,12,"  ");break;
				case 3:OLED_ShowString(3,5,"  ");break;
				case 4:OLED_ShowString(3,8,"  ");break;
				case 5:OLED_ShowString(3,11,"  ");break;
			}
		}
		else
		{
			OLED_ShowLengthNum(2,4,calendar.year,4);
			OLED_ShowLengthNum(2,9,calendar.month,2);
			OLED_ShowLengthNum(2,12,calendar.date,2);
			OLED_ShowLengthNum(3,5,calendar.hour,2);
			OLED_ShowLengthNum(3,8,calendar.min,2);
			OLED_ShowLengthNum(3,11,calendar.sec,2);
		}
		key = key_scan();
		if(key == 1)
		{
			set_s++;
			if(set_s > 5)
			{
				rtc_set_time(calendar.year,calendar.month,calendar.date,calendar.hour,calendar.min,calendar.sec);
				break;
			}
		}
		else if(key == 2)
		{
			switch(set_s)
			{
				case 0:calendar.year--;break;
				case 1:if(calendar.month > 1) calendar.month--;break;
				case 2:if(calendar.date > 1) calendar.date--;break;
				case 3:if(calendar.hour > 0) calendar.hour--;break;
				case 4:if(calendar.min > 0) calendar.min--;break;
				case 5:if(calendar.sec > 0) calendar.sec--;break;
			}
		}
		else if(key == 3)
		{
			switch(set_s)
			{
				case 0:calendar.year++;break;
				case 1:if(calendar.month < 12) calendar.month++;break;
				case 2:if(calendar.date < 31) calendar.date++;break;
				case 3:if(calendar.hour < 23) calendar.hour++;break;
				case 4:if(calendar.min < 59) calendar.min++;break;
				case 5:if(calendar.sec < 59) calendar.sec++;break;
			}
		}
	}
}

void set_alarm(void)  //设置闹钟
{
	uint8_t set_s = 0;
	OLED_Clear();
	OLED_ShowString(1,1,"    Set Alarm");
	OLED_ShowString(3,5,"  :  :");
	while(1)
	{
		if(show)
		{
			switch(set_s)
			{
				case 0:OLED_ShowString(3,5,"  ");break;
				case 1:OLED_ShowString(3,8,"  ");break;
				case 2:OLED_ShowString(3,11,"  ");break;
			}
		}
		else
		{
			OLED_ShowLengthNum(3,5,a_hour,2);
			OLED_ShowLengthNum(3,8,a_min,2);
			OLED_ShowLengthNum(3,11,a_sec,2);
		}
		key = key_scan();
		if(key == 1)
		{
			set_s++;
			if(set_s > 2) break;
		}
		else if(key == 2)
		{
			switch(set_s)
			{
				case 0:if(a_hour > 0) a_hour--;break;
				case 1:if(a_min > 0) a_min--;break;
				case 2:if(a_sec > 0) a_sec--;break;
			}
		}
		else if(key == 3)
		{
			switch(set_s)
			{
				case 0:if(a_hour < 23) a_hour++;break;
				case 1:if(a_min < 59) a_min++;break;
				case 2:if(a_sec < 59) a_sec++;break;
			}
		}
	}
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_TIM2_Init();
  /* USER CODE BEGIN 2 */
	OLED_Init();
	rtc_init();
	rtc_set_time(2024, 12, 20, 12, 0, 0);  //初始时间
	main_sc();
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		//读取和显示时间
		rtc_get_time();
		OLED_ShowLengthNum(2,4,calendar.year,4);
		OLED_ShowLengthNum(2,9,calendar.month,2);
		OLED_ShowLengthNum(2,12,calendar.date,2);
		OLED_ShowLengthNum(3,5,calendar.hour,2);
		OLED_ShowLengthNum(3,8,calendar.min,2);
		OLED_ShowLengthNum(3,11,calendar.sec,2);
		key = key_scan();
		if(key == 1) //设置时间
		{
			set_time();
			main_sc();
		}
		else if(key == 2)  //设置闹钟
		{
			set_alarm();
			main_sc();
		}
		else if(key == 3)  //关闭闹钟响声
		{
			alarm_flag = 0;
			HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET);
		}
		//闹钟时间到
		if(calendar.hour == a_hour && calendar.min == a_min && calendar.sec == a_sec)
			alarm_flag = 1;
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{	
	static uint16_t cnt = 0;
	if(htim->Instance == TIM2)
	{
		cnt++;
		if(cnt >= 500)
		{
			cnt = 0;
			show = !show;
			if(alarm_flag) HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_0);
		}
	}
}
/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */