/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    stm32f1xx_it.c
  * @brief   Interrupt Service Routines.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 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 "stm32f1xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

#include <locale.h>
#include <stdio.h>

#include "string.h"
#include "E104-BT5005A.h"
#include "E52.h"
#include "RTC_SLEEP.h"
#include "ring_buffer.h"

/* USER CODE END Includes */

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

/* USER CODE END TD */

/* 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 -----------------------------------------------*/
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/* External variables --------------------------------------------------------*/
extern RTC_HandleTypeDef hrtc;
extern DMA_HandleTypeDef hdma_usart2_rx;
extern DMA_HandleTypeDef hdma_usart3_rx;
extern UART_HandleTypeDef huart2;
extern UART_HandleTypeDef huart3;
extern TIM_HandleTypeDef htim3;

/* USER CODE BEGIN EV */

/* USER CODE END EV */

/******************************************************************************/
/*           Cortex-M3 Processor Interruption and Exception Handlers          */
/******************************************************************************/
/**
  * @brief This function handles Non maskable interrupt.
  */
void NMI_Handler(void)
{
  /* USER CODE BEGIN NonMaskableInt_IRQn 0 */

  /* USER CODE END NonMaskableInt_IRQn 0 */
  /* USER CODE BEGIN NonMaskableInt_IRQn 1 */
   while (1)
  {
  }
  /* USER CODE END NonMaskableInt_IRQn 1 */
}

/**
  * @brief This function handles Hard fault interrupt.
  */
void HardFault_Handler(void)
{
  /* USER CODE BEGIN HardFault_IRQn 0 */

  /* USER CODE END HardFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_HardFault_IRQn 0 */
    /* USER CODE END W1_HardFault_IRQn 0 */
  }
}

/**
  * @brief This function handles Memory management fault.
  */
void MemManage_Handler(void)
{
  /* USER CODE BEGIN MemoryManagement_IRQn 0 */

  /* USER CODE END MemoryManagement_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
    /* USER CODE END W1_MemoryManagement_IRQn 0 */
  }
}

/**
  * @brief This function handles Prefetch fault, memory access fault.
  */
void BusFault_Handler(void)
{
  /* USER CODE BEGIN BusFault_IRQn 0 */

  /* USER CODE END BusFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_BusFault_IRQn 0 */
    /* USER CODE END W1_BusFault_IRQn 0 */
  }
}

/**
  * @brief This function handles Undefined instruction or illegal state.
  */
void UsageFault_Handler(void)
{
  /* USER CODE BEGIN UsageFault_IRQn 0 */

  /* USER CODE END UsageFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_UsageFault_IRQn 0 */
    /* USER CODE END W1_UsageFault_IRQn 0 */
  }
}

/**
  * @brief This function handles System service call via SWI instruction.
  */
void SVC_Handler(void)
{
  /* USER CODE BEGIN SVCall_IRQn 0 */

  /* USER CODE END SVCall_IRQn 0 */
  /* USER CODE BEGIN SVCall_IRQn 1 */

  /* USER CODE END SVCall_IRQn 1 */
}

/**
  * @brief This function handles Debug monitor.
  */
void DebugMon_Handler(void)
{
  /* USER CODE BEGIN DebugMonitor_IRQn 0 */

  /* USER CODE END DebugMonitor_IRQn 0 */
  /* USER CODE BEGIN DebugMonitor_IRQn 1 */

  /* USER CODE END DebugMonitor_IRQn 1 */
}

/**
  * @brief This function handles Pendable request for system service.
  */
void PendSV_Handler(void)
{
  /* USER CODE BEGIN PendSV_IRQn 0 */

  /* USER CODE END PendSV_IRQn 0 */
  /* USER CODE BEGIN PendSV_IRQn 1 */

  /* USER CODE END PendSV_IRQn 1 */
}

/**
  * @brief This function handles System tick timer.
  */
void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */

  /* USER CODE END SysTick_IRQn 0 */

  /* USER CODE BEGIN SysTick_IRQn 1 */

  /* USER CODE END SysTick_IRQn 1 */
}

/******************************************************************************/
/* STM32F1xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32f1xx.s).                    */
/******************************************************************************/

/**
  * @brief This function handles DMA1 channel3 global interrupt.
  */
void DMA1_Channel3_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel3_IRQn 0 */

  /* USER CODE END DMA1_Channel3_IRQn 0 */
  HAL_DMA_IRQHandler(&hdma_usart3_rx);
  /* USER CODE BEGIN DMA1_Channel3_IRQn 1 */

  /* USER CODE END DMA1_Channel3_IRQn 1 */
}

/**
  * @brief This function handles DMA1 channel6 global interrupt.
  */
void DMA1_Channel6_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel6_IRQn 0 */

  /* USER CODE END DMA1_Channel6_IRQn 0 */
  HAL_DMA_IRQHandler(&hdma_usart2_rx);
  /* USER CODE BEGIN DMA1_Channel6_IRQn 1 */

  /* USER CODE END DMA1_Channel6_IRQn 1 */
}

/**
  * @brief This function handles TIM3 global interrupt.
  */
void TIM3_IRQHandler(void)
{
  /* USER CODE BEGIN TIM3_IRQn 0 */

  /* USER CODE END TIM3_IRQn 0 */
  HAL_TIM_IRQHandler(&htim3);
  /* USER CODE BEGIN TIM3_IRQn 1 */

  /* USER CODE END TIM3_IRQn 1 */
}

/**
  * @brief This function handles USART2 global interrupt.
  */
void USART2_IRQHandler(void)
{
  /* USER CODE BEGIN USART2_IRQn 0 */
  /* USER CODE END USART2_IRQn 0 */
  HAL_UART_IRQHandler(&huart2);
  /* USER CODE BEGIN USART2_IRQn 1 */
  if (__HAL_UART_GET_FLAG(&huart2, UART_FLAG_IDLE))
  {
    __HAL_UART_CLEAR_IDLEFLAG(&huart2);    // 清除空闲标志
    HAL_UART_DMAStop(&huart2);             // 停止 DMA

    // 实际接收长度
    uint16_t rx_len = UART2_DMA_BUF_LEN - __HAL_DMA_GET_COUNTER(huart2.hdmarx);

    if (rx_len > 0)
    {
      // ====== 协议帧校验 ======
      if (rx_len == 12 &&
          rx_buf_uart2_DMA[0] == 0x55 &&
          rx_buf_uart2_DMA[1] == 0xBB &&
          rx_buf_uart2_DMA[3] == deviceInfo.loraDeviceAddress_H &&
          rx_buf_uart2_DMA[4] == deviceInfo.loraDeviceAddress_L &&
          rx_buf_uart2_DMA[10] == 0xFF &&
          rx_buf_uart2_DMA[11] == 0xEE)
      {
        if (rx_buf_uart2_DMA[2] == 0x0A || (GET_CMD(deviceInfo.commandFromCloud) == IDLE &&
            GET_STEP(deviceInfo.commandFromCloud) == STEP_INIT))
        {
            deviceInfo.isOnline = TRUE;
          memcpy(rx_buf_uart2, rx_buf_uart2_DMA, rx_len);   // 拷贝实际接收数据
          deviceInfo.commandFromCloud = COMBINE_CMD_STEP(IDLE, STEP_VERIFY);
        }
      }
      // ====== 判断 "SUCCESS" ======
      else if (rx_len >= 7 && strncmp((char *)rx_buf_uart2_DMA, "SUCCESS", 7) == 0)
      {
         deviceInfo.loraSendSuccessFlag = 0;
      }
      // ====== 判断 "AT" 指令 ======
      else if (rx_len >= 2 && strncmp((char *)rx_buf_uart2_DMA, "AT", 2) == 0)
      {
        char *ptr = strstr((char *)rx_buf_uart2_DMA, "SRC_ADDR=0x");
        if (ptr != NULL)
        {
          ptr += strlen("SRC_ADDR=0x");
          if ((ptr - (char *)rx_buf_uart2_DMA) + 4 <= rx_len) // 确保数据够长
          {
            char hexStr[5] = {0};
            strncpy(hexStr, ptr, 4);
            long addr = strtol(hexStr, NULL, 16);

            deviceInfo.loraDeviceAddress_H = (addr >> 8) & 0x7F; //首位置空：因为修改type会改变地址
            deviceInfo.loraDeviceAddress_L = addr & 0xFF;
            Flash_Write_LoraAddr(deviceInfo.loraDeviceAddress_H, deviceInfo.loraDeviceAddress_L);
          }
        }
      }
    }

    // 统一清空并重启 DMA
    memset(rx_buf_uart2_DMA, 0, UART2_DMA_BUF_LEN);
    HAL_UART_Receive_DMA(&huart2, rx_buf_uart2_DMA, UART2_DMA_BUF_LEN);
  }
  /* USER CODE END USART2_IRQn 1 */
}

/**
  * @brief This function handles USART3 global interrupt.
  */
void USART3_IRQHandler(void)
{
  /* USER CODE BEGIN USART3_IRQn 0 */
  // 可以在这里加断点调试或者统计中断次数
  /* USER CODE END USART3_IRQn 0 */
  HAL_UART_IRQHandler(&huart3);
  /* USER CODE BEGIN USART3_IRQn 1 */
  if (__HAL_UART_GET_FLAG(&huart3, UART_FLAG_IDLE))
  {
    __HAL_UART_CLEAR_IDLEFLAG(&huart3);
    HAL_UART_DMAStop(&huart3);

    uint16_t rx_len = UART3_DMA_BUF_LEN - __HAL_DMA_GET_COUNTER(huart3.hdmarx);

    if (rx_len > 0 && rx_len <= UART3_DMA_BUF_LEN)
    {
      // 避免 strcmp 越界，先判断长度再判断开头
      if (!(rx_len >= 2 && rx_buf_uart3[0] == 'A' && rx_buf_uart3[1] == 'T'))
      {
        if (deviceInfo.BlDataFlag == BL_START)
        {
          // 队列已满则先出队一个，保证能入队
          if (RingBuffer_IsFull(&deviceInfo.queueBLData)) {
            uint8_t drop[DATA_SIZE];
            RingBuffer_Dequeue(&deviceInfo.queueBLData, drop);
          }

          // 确保至少有7字节再判断 rx_buf[6]
          if (rx_len >= 7 && rx_buf_uart3[6] == 0xF0)
          {
            // 临时缓存，避免 DMA 缓冲被清空后数据丢失
            uint8_t temp_buf[UART3_DMA_BUF_LEN];
            memcpy(temp_buf, rx_buf_uart3, rx_len);

            // 这里建议 RingBuffer_Enqueue 支持传长度
            if (RingBuffer_Enqueue(&deviceInfo.queueBLData, temp_buf) == 0) {
              // 入队成功
            }
          }
        }
      }
    }

    // 清空 DMA 缓冲 & 重新启动 DMA 接收
    memset(rx_buf_uart3, 0, UART3_DMA_BUF_LEN);
    HAL_UART_Receive_DMA(&huart3, rx_buf_uart3, UART3_DMA_BUF_LEN);
  }
  /* USER CODE END USART3_IRQn 1 */
}

/**
  * @brief This function handles EXTI line[15:10] interrupts.
  */
void EXTI15_10_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI15_10_IRQn 0 */

  /* USER CODE END EXTI15_10_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(SOS_KEY_Pin);
  HAL_GPIO_EXTI_IRQHandler(JUGE_PIN_Pin);
  /* USER CODE BEGIN EXTI15_10_IRQn 1 */

  /* USER CODE END EXTI15_10_IRQn 1 */
}

/**
  * @brief This function handles RTC alarm interrupt through EXTI line 17.
  */
void RTC_Alarm_IRQHandler(void)
{
  /* USER CODE BEGIN RTC_Alarm_IRQn 0 */

  /* USER CODE END RTC_Alarm_IRQn 0 */
  HAL_RTC_AlarmIRQHandler(&hrtc);
  /* USER CODE BEGIN RTC_Alarm_IRQn 1 */
  printf("hello world\r\n");
  /* USER CODE END RTC_Alarm_IRQn 1 */
}

/* USER CODE BEGIN 1 */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
  RTC_TimeTypeDef currentTime = {0};
  HAL_RTC_GetTime(&hrtc, &currentTime, RTC_FORMAT_BIN);

  // ===== SOS_KEY =====
  if (GPIO_Pin == SOS_KEY_Pin) {
    if (HAL_GPIO_ReadPin(SOS_KEY_GPIO_Port, SOS_KEY_Pin) == GPIO_PIN_SET) {
      // 松开（上升沿）
      // printf("SOS_KEY 松开\r\n");
      // deviceInfo.isSOS = FALSE;
        __HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
    } else {
      // 按下（下降沿）
      // printf("SOS_KEY 按下\r\n");
        __HAL_UART_DISABLE_IT(&huart3, UART_IT_IDLE);
      SOS_struct = currentTime;  // 记录上报时间
      // deviceInfo.isSOS = TRUE;
    }
  }
  // ===== JUGE_KEY =====
  else if (GPIO_Pin == JUGE_PIN_Pin) {
    if (HAL_GPIO_ReadPin(JUGE_PIN_GPIO_Port, JUGE_PIN_Pin) == GPIO_PIN_SET) {
      // 松开（上升沿）
      // printf("JUGE_KEY 松开\r\n");
    } else {
      // 按下（下降沿）
      // printf("JUGE_KEY 按下\r\n");
      HAL_GPIO_WritePin(POWER_ON_GPIO_Port, POWER_ON_Pin, GPIO_PIN_RESET);
    }
  }
}


/* USER CODE END 1 */