#include "SDCardMgr.h"

#ifdef USE_FATFS
#include "FatFS/diskio.h"
#include "FatFS/ff.h"

FATFS FatFs;			/* File system object */
FIL File[2];			/* File objects */
BYTE Buff[4096];		/* Working buffer */

#else
#include "sd_hw_ctl.h"
#include "FileSystem/fileio_lfn.h"
#endif

#include <stdio.h>
#include "timer.h"

int mSDCardState;
int mCardDetected;
int mCardMounted;

#ifdef USE_FATFS
#else
uint16_t mDriveLetter;
#endif


#ifdef USE_FATFS

int InitSDCard()
{

    
    mSDCardState = SD_CARD_INIT_STATE;
    mCardDetected = 0;
    mCardMounted = 0;
    
    return MountDrive();
    
   
}
int TickSDCard()
{
    return 1;
}

int MountDrive()
{
    FRESULT res;
    res = f_mount(&FatFs, "", 0);		/* Give a work area to the default drive */
    if(!res)
    {
        printf("Could not mount SD card\n");
        return 1;
    }
    else
    {
        printf("SD Card mounted successfuly");
    }

    return 0;
}

int IsDriveDetected()
{
    return mCardDetected;
}

int IsDriveMounted()
{
    return mCardMounted;
}

int ListRootDir()
{
    FRESULT res;
    DIR dir;
    UINT i;
    static FILINFO fno;
    char path[] = "/";

    

    res = f_opendir(&dir, path);                       /* Open the directory */
    if (res == FR_OK) {
        for (;;) {
            res = f_readdir(&dir, &fno);                   /* Read a directory item */
            if (res != FR_OK || fno.fname[0] == 0) break;  /* Break on error or end of dir */
//            if (fno.fattrib & AM_DIR) {                    /* It is a directory */
//                i = strlen(path);
//                sprintf(&path[i], "/%s", fno.fname);
//                res = scan_files(path);                    /* Enter the directory */
//                if (res != FR_OK) break;
//                path[i] = 0;
//            } else {                                       /* It is a file. */
                printf("%s/%s\n", path, fno.fname);
            //}
        }
        f_closedir(&dir);
    }

    
    return 1;
}

#else
void FILEIO_GetTimestamp (FILEIO_TIMESTAMP * timeStamp)
{
    timeStamp->date.bitfield.day = 6;
    timeStamp->date.bitfield.month = 5;
    timeStamp->date.bitfield.year = (2017 - 1980);
    
    timeStamp->time.bitfield.hours = 9;
    timeStamp->time.bitfield.minutes = 5;
    timeStamp->time.bitfield.secondsDiv2 = 0;
    
    timeStamp->timeMs = 0;
            
}

int InitSDCard()
{
    SD_SPIConfigurePins();
    FILEIO_Initialize();
    mSDCardState = SD_CARD_INIT_STATE;
    
    mCardDetected = 0;
    mCardMounted = 0;
    
    mDriveLetter = 'D';
    TimerStart(SD_CARD_DETECT_TIMER,5000);

    return 1;
}

int TickSDCard()
{
    switch(mSDCardState)
    {
        case SD_CARD_INIT_STATE:
        {
            if(IsTimerExpired(SD_CARD_DETECT_TIMER))
            {
                if(FILEIO_MediaDetect(0, 0) == true)
                {
                    mCardDetected = 1;
                    mSDCardState = SD_CARD_MOUNT_DRIVE_STATE;
                    printf("SD Card detected\n");
                }
                else
                {
                    TimerStart(SD_CARD_DETECT_TIMER,999);
                }
            }
            break;
        }
        case SD_CARD_MOUNT_DRIVE_STATE:
        {
            if(FILEIO_DriveMount(mDriveLetter, 0, 0) == FILEIO_ERROR_NONE)
            {
                mCardMounted = 1;
                mSDCardState = SD_CARD_READY_STATE;
                printf("SD Card mounted on drive %c\n",(unsigned char)mDriveLetter);
            }
            else
            {
                mSDCardState = SD_CARD_ERROR_MOUNTING_STATE;
                printf("Error mounting SD card.\n");
            }
            break;
        }
        case SD_CARD_READY_STATE:
        {
//            if(FILEIO_MediaDetect(0, 0) == false)
//            {
//                mCardDetected = 0;
//                mSDCardState = SD_CARD_INIT_STATE;
//            }
            break;
        }
        case SD_CARD_ERROR_MOUNTING_STATE:
        {
            //wait for removal of the sd card...
//            if(FILEIO_MediaDetect(0, 0) == false)
//            {
//                mCardDetected = 0;
//                mSDCardState = SD_CARD_INIT_STATE;
//                printf("SD Card removed");
//            }
            break;
        }
    }
    
}


int MountDrive()
{
    
}

int IsDriveDetected()
{
    return mCardDetected;
}

int IsDriveMounted()
{
    return mCardMounted;
}
#endif