/*
 *  FREE.C - internal command.
 *
 *
 *  History:
 *
 *    01-Sep-1999 (Eric Kohl)
 *        Started.
 *
 *    28-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
 *        Remove all hardcoded strings in En.rc
 */

#include "precomp.h"

#ifdef INCLUDE_CMD_FREE

static VOID
PrintDiskInfo (LPTSTR szDisk)
{
    TCHAR szMsg[RC_STRING_MAX_SIZE];
    TCHAR szRootPath[4] = _T("A:\\");
    TCHAR szDrive[2] = _T("A");
    TCHAR szVolume[64];
    TCHAR szSerial[10];
    TCHAR szTotal[40];
    TCHAR szUsed[40];
    TCHAR szFree[40];
    DWORD dwSerial;
    ULONGLONG uliSize;
    DWORD dwSecPerCl;
    DWORD dwBytPerSec;
    DWORD dwFreeCl;
    DWORD dwTotCl;

    if (_tcslen (szDisk) < 2 || szDisk[1] != _T(':'))
    {
        ConErrResPrintf(STRING_FREE_ERROR1);
        return;
    }

    szRootPath[0] = szDisk[0];
    szDrive[0] = _totupper (szRootPath[0]);

    if (!GetVolumeInformation (szRootPath, szVolume, 64, &dwSerial,
                               NULL, NULL, NULL, 0))
    {
        LoadString(CMD_ModuleHandle, STRING_FREE_ERROR1, szMsg, ARRAYSIZE(szMsg));
        ConErrPrintf(_T("%s %s:\n"), szMsg, szDrive);
        return;
    }

    if (szVolume[0] == _T('\0'))
    {

        LoadString(CMD_ModuleHandle, STRING_FREE_ERROR2, szMsg, ARRAYSIZE(szMsg));
        _tcscpy (szVolume, szMsg);
    }

    _stprintf (szSerial,
               _T("%04X-%04X"),
               HIWORD(dwSerial),
               LOWORD(dwSerial));

    if (!GetDiskFreeSpace (szRootPath, &dwSecPerCl,
                           &dwBytPerSec, &dwFreeCl, &dwTotCl))
    {
        LoadString(CMD_ModuleHandle, STRING_FREE_ERROR1, szMsg, ARRAYSIZE(szMsg));
        ConErrPrintf(_T("%s %s:\n"), szMsg, szDrive);
        return;
    }

    uliSize = dwSecPerCl * dwBytPerSec * (ULONGLONG)dwTotCl;
    ConvertULargeInteger(uliSize, szTotal, 40, TRUE);

    uliSize = dwSecPerCl * dwBytPerSec * (ULONGLONG)(dwTotCl - dwFreeCl);
    ConvertULargeInteger(uliSize, szUsed, 40, TRUE);

    uliSize = dwSecPerCl * dwBytPerSec * (ULONGLONG)dwFreeCl;
    ConvertULargeInteger(uliSize, szFree, 40, TRUE);

    ConOutResPrintf(STRING_FREE_HELP1, szDrive, szVolume, szSerial, szTotal, szUsed, szFree);
}


INT CommandFree (LPTSTR param)
{
    LPTSTR szParam;
    TCHAR  szDefPath[MAX_PATH];
    INT argc, i;
    LPTSTR *arg;

    if (!_tcsncmp (param, _T("/?"), 2))
    {
        ConOutResPaging(TRUE,STRING_FREE_HELP2);
        return 0;
    }

    if (!param || *param == _T('\0'))
    {
        GetCurrentDirectory (MAX_PATH, szDefPath);
        szDefPath[2] = _T('\0');
        szParam = szDefPath;
    }
    else
        szParam = param;

    arg = split (szParam, &argc, FALSE, FALSE);

    for (i = 0; i < argc; i++)
        PrintDiskInfo (arg[i]);

    freep (arg);

    return 0;
}

#endif /* INCLUDE_CMD_FREE */

/* EOF */