#include <tamtypes.h>
#include <kernel.h>
#include <sifrpc.h>
#include <stdarg.h>
#include <string.h>

#include "cdvd_rpc.h"

int k_sceSifDmaStat(unsigned int id);
static unsigned sbuff[0x1300] __attribute__((aligned(64)));
static SifRpcClientData_t cd0;

int cdvd_inited = 0;

int CDVD_Init()
{
    int i;

    while (1) {
        if (SifBindRpc(&cd0, CDVD_IRX, 0) < 0)
            return -1;  // bind error
        if (cd0.server != 0)
            break;
        i = 0x10000;
        while (i--)
            ;
    }

    cdvd_inited = 1;

    return 0;
}

int CDVD_DiskReady(int mode)
{
    if (!cdvd_inited)
        return -1;

    sbuff[0] = mode;

    SifCallRpc(&cd0, CDVD_DISKREADY, 0, (void *)(&sbuff[0]), 4, (void *)(&sbuff[0]), 4, 0, 0);

    return sbuff[0];
}

int CDVD_FindFile(const char *fname, struct TocEntry *tocEntry)
{
    if (!cdvd_inited)
        return -1;

    strncpy((char *)&sbuff, fname, 1024);

    SifCallRpc(&cd0, CDVD_FINDFILE, 0, (void *)(&sbuff[0]), 1024, (void *)(&sbuff[0]), sizeof(struct TocEntry) + 1024, 0, 0);

    memcpy(tocEntry, &sbuff[256], sizeof(struct TocEntry));

    return sbuff[0];
}

void CDVD_Stop()
{
    if (!cdvd_inited)
        return;

    SifCallRpc(&cd0, CDVD_STOP, 0, (void *)(&sbuff[0]), 0, (void *)(&sbuff[0]), 0, 0, 0);

    return;
}

int CDVD_TrayReq(int mode)
{
    if (!cdvd_inited)
        return -1;

    SifCallRpc(&cd0, CDVD_TRAYREQ, 0, (void *)(&sbuff[0]), 4, (void *)(&sbuff[0]), 4, 0, 0);

    return sbuff[0];
}

int CDVD_GetDir(const char *pathname, const char *extensions, enum CDVD_getMode getMode, struct TocEntry tocEntry[], unsigned int req_entries, char *new_pathname)
{
    unsigned int num_entries;

    if (!cdvd_inited)
        return -1;

    // copy the requested pathname to the rpc buffer
    strncpy((char *)sbuff, pathname, 1023);

    // copy in the extension list to the rpc buffer
    if (extensions == NULL) {
        // Can't copy in the extension list since there isnt one, so just null the string in the rpc buffer
        sbuff[1024 / 4] = 0;
    } else {
        strncpy((char *)&sbuff[1024 / 4], extensions, 127);
    }

    sbuff[1152 / 4] = getMode;

    sbuff[1156 / 4] = (int)tocEntry;

    sbuff[1160 / 4] = req_entries;

    SifWriteBackDCache(tocEntry, req_entries * sizeof(struct TocEntry));

    // This will get the directory contents, and fill tocEntry via DMA
    SifCallRpc(&cd0, CDVD_GETDIR, 0, (void *)(&sbuff[0]), 1024 + 128 + 4 + 4 + 4, (void *)(&sbuff[0]), 4 + 1024, 0, 0);

    num_entries = sbuff[0];

    if (new_pathname != NULL)
        strncpy(new_pathname, (char *)&sbuff[1], 1023);

    return (num_entries);
}

void CDVD_FlushCache()
{
    if (!cdvd_inited)
        return;

    SifCallRpc(&cd0, CDVD_FLUSHCACHE, 0, (void *)(&sbuff[0]), 0, (void *)(&sbuff[0]), 0, 0, 0);

    return;
}

unsigned int CDVD_GetSize()
{
    if (!cdvd_inited)
        return -1;

    SifCallRpc(&cd0, CDVD_GETSIZE, 0, (void *)(&sbuff[0]), 0, (void *)(&sbuff[0]), 4, 0, 0);

    return sbuff[0];
}