#include "save_file.h"
#include "fatfs.h"
#include "spi10.h"
#include "rtc_process.h"

#include "action_process.h"




typedef enum
{
    SAVE_STEP_INIT,
    SAVE_STEP_POWER_ON_WAIT,
    SAVE_STEP_SAVE_TIME_CHECK,
    SAVE_STEP_SAVE_MOUNT,
    SAVE_STEP_SAVE_FILE_OPEN,
    SAVE_STEP_SAVE_FILE_LSEEK,
    SAVE_STEP_SAVE_FILE_WRITE,
    SAVE_STEP_SAVE_FILE_CLOSE,
    SAVE_STEP_SAVE_ERROR,    
}SAVE_STEP;


static SAVE_STEP    SaveStep = SAVE_STEP_INIT;
static uint32_t     SaveFileTickCount;
static uint8_t      SaveMin;
static FATFS FatFs; 	//Fatfs handle
static FIL fil; 		//File handle
static DIR  dir;
static FRESULT fres; //Result after operations
uint8_t FileBuffer[512];



uint32_t WriteDataSize;

static bool         isGuidePrint;
static bool         isPowerOn;


bool Save_SensorData_SDCard(uint16_t AverageCo2, uint16_t MaxCo2, uint16_t MinCo2, uint8_t State)
{
    RTC_TIME rtc_time;
    uint32_t writeByte;

    MX_FATFS_Init();
    fres = f_mount(&FatFs, "", 1); //1=mount now                    
    if(fres == FR_DISK_ERR)
    {
        FATFS_UnLinkDriver("0:/");
        MX_FATFS_Init();
        fres = f_mount(&FatFs, "", 1); //1=mount now                    
    }

    if(fres != FR_OK)
    {                
        //dbg_printf("sdcard mount errorr\r\n");   
        return false;
    }
    rtc_time = RTC_Get_Time();
    sprintf((char *)FileBuffer, "%04d%02d%02d", rtc_time.rtc_Year, rtc_time.rtc_Month, rtc_time.rtc_Date);    
    //dbg_printf("open dir = %s\r\n", FileBuffer);
    fres = f_opendir(&dir, FileBuffer);
    if(fres != FR_OK)
    {
        fres = f_mkdir(FileBuffer);
        if(fres != FR_OK)
        {
            //dbg_printf("create directory error\r\n");
            return false;
        }        
    }

    sprintf((char *)FileBuffer, "/%04d%02d%02d/%02d.csv", rtc_time.rtc_Year, rtc_time.rtc_Month, rtc_time.rtc_Date, rtc_time.rtc_Hour);
    if(f_open(&fil, FileBuffer, FA_WRITE | FA_READ) != FR_OK)
    {
        //dbg_printf("file open error, retry\r\n");
        if (f_open(&fil, FileBuffer, FA_CREATE_ALWAYS | FA_WRITE) != FR_OK)
        {
            //dbg_printf("file open error\r\n");
            f_closedir(&dir);
            return false;
        }
        else
        {
            isGuidePrint = true;
        }
    }
    else
    {
        isGuidePrint = false;                    
    }

    fres = f_lseek(&fil, f_size(&fil));
    if(fres != FR_OK)
    {
        f_closedir(&dir);
        f_close(&fil);
        return false;
    }

    if(isGuidePrint == true)
    {        
        sprintf((char *)FileBuffer, "Time,Average_Co2,Max_Co2,Min_Co2,State\r\n");        
        fres = f_write(&fil, FileBuffer, strlen(FileBuffer), &writeByte);
        if(fres != FR_OK)
        {
            f_closedir(&dir);
            f_close(&fil);
            return false;
        }
    }

    sprintf((char *)FileBuffer, "%d:%d,%d,%d,%d,%d\r\n", rtc_time.rtc_Hour, rtc_time.rtc_Min, AverageCo2, MaxCo2, MinCo2, State);
    fres = f_write(&fil, FileBuffer, strlen(FileBuffer), &writeByte);
    if(fres != FR_OK)
    {
        f_closedir(&dir);
        f_close(&fil);
        return false;
    }

    f_close(&fil);
    f_closedir(&dir);

    return true;
}