/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 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 "rtc.h"
#include "spi.h"
#include "usb_device.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "usbd_cdc_if.h"
#include "bme280.h"
#include "sx127x.h"
#include "terminal.h"
#include "stdio.h"
#include "time.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 */

/* 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 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
	bme280_t bme280;
	sx127x_t sx127x;
	uint8_t buf[250];
	RTC_TimeTypeDef time;
	RTC_DateTypeDef date;
	struct tm t = { 0 };
	char timebuf[128];
	uint16_t len;
  /* 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_SPI2_Init();
  MX_USB_DEVICE_Init();
  MX_SPI1_Init();
  MX_RTC_Init();
  /* USER CODE BEGIN 2 */
	HAL_GPIO_WritePin(BME280_PWR_GPIO_Port, BME280_PWR_Pin, GPIO_PIN_SET);
	bme280_init(&bme280, &hspi2, SPI2_CS_GPIO_Port, SPI2_CS_Pin);
	sx127x_init(&sx127x, &hspi1, SPI1_CS_GPIO_Port, SPI1_CS_Pin);
	sx127x_tx(&sx127x, (uint8_t *) "Hello, world!\r\n", 15);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
	while(1)
	{
		HAL_RTC_GetTime(&hrtc, &time, RTC_FORMAT_BIN);
		HAL_RTC_GetDate(&hrtc, &date, RTC_FORMAT_BIN);
		t.tm_sec   = time.Seconds;                   /* Seconds          [0, 60] */
		t.tm_min   = time.Minutes;                   /* Minutes          [0, 59] */
		t.tm_hour  = time.Hours;                     /* Hour             [0, 23] */
		t.tm_mday  = date.Date;                      /* Day of the month [1, 31] */
		t.tm_mon   = date.Month - RTC_MONTH_JANUARY; /* Month            [0, 11]  (January = 0) */
		t.tm_year  = date.Year + 100;                /* Year minus 1900 */
		t.tm_wday  = 0;                              /* Day of the week  [0, 6]   (Sunday = 0) */
		t.tm_yday  = 0;                              /* Day of the year  [0, 365] (Jan/01 = 0) */
		t.tm_isdst = 0;                              /* Daylight savings flag */
		strftime(timebuf, 256, "%Y-%m-%d %H:%M:%S", &t);
		len = snprintf((char *) buf, 200, "%s T: %.2f\xc2\xb0""C, P: %.2f hPa, RH: %.2f%%\r\n",
		               timebuf,
		               (double) bme280_temp_get(&bme280) / 100.0,
		               (double) bme280_press_get(&bme280) / 25600.0,
		               (double) bme280_hum_get(&bme280) / 1024.0);
		term_printf("%s", buf);
		sx127x_tx(&sx127x, buf, len);
		HAL_Delay(1000);
	}
    /* 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};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE|RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 25;
  RCC_OscInitStruct.PLL.PLLN = 144;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 3;
  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 */

/* 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 */