#include "sample_data_manager_service.h"

#include "board/board.h"
#include "board/board_sdcard_driver.h"
#include "znordic.h"
/*******************************************************************************
 *                                  全局变量                                   *
 *******************************************************************************/
static FIL                         m_default_file_handler;
static sample_data_fileinfo_list_t m_sample_fileinfo_list;
static sample_data_fileinfo_t      m_sample_fileinfo[FILE_MAX_COUNT];

/*******************************************************************************
 *                                   接口层                                    *
 *******************************************************************************/

static void read_file_info() {
  /**
   * @brief
   *
   * fdate:
   *    bit15:9
   *      Year origin from 1980 (0..127)
   *    bit8:5
   *      Month (1..12)
   *    bit4:0
   *      Day of the month(1..31)
   * ftime:
   *    bit15:11
   *      Hour (0..23)
   *    bit10:5
   *      Minute (0..59)
   *    bit4:0
   *      Second / 2 (0..29)
   */
  FILINFO fno;
  FRESULT ff_result                  = f_stat("0.bin", &fno);
  m_sample_fileinfo_list.fileinfo[0] = &m_sample_fileinfo[0];

  if (ff_result == FR_OK) {
    static sample_data_filename_t _filename;
    _filename.year  = (fno.fdate >> 9) + 1980 - 2000;
    _filename.month = (fno.fdate >> 5) & 0x0F;
    _filename.day   = fno.fdate & 0x1F;
    _filename.hour  = (fno.ftime >> 11);
    _filename.min   = (fno.ftime >> 5) & 0x3F;
    _filename.sec   = (fno.ftime & 0x1F) * 2;
    memcpy(m_sample_fileinfo_list.fileinfo[0]->filename, &_filename, sizeof(sample_data_filename_t));
    m_sample_fileinfo_list.fileinfo[0]->size = fno.fsize;
    m_sample_fileinfo_list.count             = 1;

    ZLOGI("filelist:");
    ZLOGI(" name:%s", "0.bin");
    ZLOGI(" size:%d", fno.fsize);

  } else {
    m_sample_fileinfo_list.fileinfo[0]->size = 0;
    m_sample_fileinfo_list.count             = 0;
  }
}

/**
 * @brief 文件驱动管理
 */
void SampleDataMgr_init() {
  Board_sdcardInit();
  // 先连接到单片机，读取下文件状态信息
  SampleDataMgr_changeToLocalMode();
  SampleDataMgr_changeToExtMode();
}
void SampleDataMgr_loadDriver() {
  // donothing
}
void SampleDataMgr_unloadDriver() {
  // donothin
}
typedef struct {
  uint8_t  filename[8];
  uint32_t filesize;

} disk_state_t;

/**
 * @brief 存储器连接单片机
 */
void SampleDataMgr_changeToLocalMode() {
  ZLOGI("change to local mode");
  Board_sdcardConnectToInternal();
  read_file_info();
}
/**
 * @brief 存储器连接外部typec
 */
void SampleDataMgr_changeToExtMode() {
  ZLOGI("change to ext mode");
  if (Board_sdcardGetConnectTo() == kConnectToInternal) {
    read_file_info();
  }
  Board_sdcardConnectToExt();
}

/**
 * @brief 打开文件
 *
 * @param filename
 * @param flag
 * @return int32_t
 */

static FIL  m_default_file_handler;
static bool m_is_open;

int32_t SampleDataMgr_open(sample_data_filename_t* filename, wrflag_t flag) {
  if (flag == kwrflag_write_only) {
    FRESULT ff_result = f_open(&m_default_file_handler, (const TCHAR*)"0.bin", FA_CREATE_ALWAYS | FA_READ | FA_WRITE);
    ZASSERT(ff_result == FR_OK);
    m_is_open = true;
    return 1;
  } else {
    FRESULT ff_result = f_open(&m_default_file_handler, (const TCHAR*)"0.bin", FA_READ);
    if (ff_result != FR_OK) {
      return -1;
    }
    m_is_open = true;
    return 1;
  }
}
int32_t SampleDataMgr_close(int32_t fd) {
  ZASSERT(m_is_open);
  FRESULT ff_result = f_close(&m_default_file_handler);
  ZASSERT(ff_result == FR_OK);
  m_is_open = false;
  return 0;
}
int32_t SampleDataMgr_write(int32_t fd, const uint8_t* data, int32_t size) {
  ZASSERT(m_is_open);
  UINT    write_size;
  FRESULT ff_result = f_write(&m_default_file_handler, data, size, &write_size);
  ZASSERT(ff_result == FR_OK);
  return write_size;
}
int32_t SampleDataMgr_read(int32_t fd, uint8_t* data, int32_t size) {
  ZASSERT(m_is_open);
  UINT    read_size;
  FRESULT ff_result = f_read(&m_default_file_handler, data, size, &read_size);
  ZASSERT(ff_result == FR_OK);
  return read_size;
}
uint32_t SampleDataMgr_getFileSizeByFd(int32_t fd) {
  ZASSERT(m_is_open);
  return f_size(&m_default_file_handler);
}

int32_t SampleDataMgr_deleteFile(sample_data_filename_t* filename) {
  if (Board_sdcardGetConnectTo() == kConnectToExt) {
    /**
     * @brief
     *    由于设备空闲阶段，SD卡连接的是外部读卡器，所以无法删除文件
     */
    ZLOGW("unsupport now");
    return 0;
  }
  f_unlink((const TCHAR*)"0.bin");
  return 0;
}

sample_data_fileinfo_list_t* SampleDataMgr_getFileinfoList() {  //
  return &m_sample_fileinfo_list;
}
bool    SampleDataMgr_storageIsFull() { return m_sample_fileinfo_list.count >= FILE_MAX_COUNT; }
int32_t SampleDataMgr_getFileNum() { return m_sample_fileinfo_list.count; }