/* NetHack 3.6	winhack.c	$NHDT-Date: 1432512799 2015/05/25 00:13:19 $  $NHDT-Branch: master $:$NHDT-Revision: 1.18 $ */
/* Copyright (C) 2001 by Alex Kompel 	 */
// winhack.cpp : Defines the entry point for the application.
//

#include "winMS.h"
#include "hack.h"
#include "dlb.h"
#include "mhmain.h"
#include "mhmap.h"

extern char orgdir[PATHLEN]; /* also used in pcsys.c, amidos.c */

extern void nethack_exit(int);
static TCHAR *_get_cmd_arg(TCHAR *pCmdLine);

// Global Variables:
NHWinApp _nethack_app;

// Foward declarations of functions included in this code module:
BOOL InitInstance(HINSTANCE, int);

static void win_hack_init(int, char **);
static void __cdecl mswin_moveloop(void *);
static BOOL setMapTiles(const char *fname);

extern boolean pcmain(int, char **);

#define MAX_CMDLINE_PARAM 255

int APIENTRY
WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine,
        int nCmdShow)
{
    INITCOMMONCONTROLSEX InitCtrls;
    HWND nethackWnd;
    int argc;
    char *argv[MAX_CMDLINE_PARAM];
    size_t len;
    TCHAR *p;
    TCHAR wbuf[NHSTR_BUFSIZE];
    char buf[NHSTR_BUFSIZE];
    boolean resuming;

    early_init();

    /* ensure that we don't access violate on a panic() */
    windowprocs.win_raw_print = mswin_raw_print;
    windowprocs.win_raw_print_bold = mswin_raw_print_bold;

    /* init applicatio structure */
    _nethack_app.hApp = hInstance;
    _nethack_app.nCmdShow = nCmdShow;
    _nethack_app.hAccelTable =
        LoadAccelerators(hInstance, (LPCTSTR) IDC_WINHACK);
    _nethack_app.hMainWnd = NULL;
    _nethack_app.hPopupWnd = NULL;
    _nethack_app.hMenuBar = NULL;
    _nethack_app.bmpTiles = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_TILES));
    if (_nethack_app.bmpTiles == NULL)
        panic("cannot load tiles bitmap");
    _nethack_app.bmpPetMark =
        LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_PETMARK));
    if (_nethack_app.bmpPetMark == NULL)
        panic("cannot load pet mark bitmap");
    _nethack_app.bmpMapTiles = _nethack_app.bmpTiles;
    _nethack_app.mapTile_X = TILE_X;
    _nethack_app.mapTile_Y = TILE_Y;
    _nethack_app.mapTilesPerLine = TILES_PER_LINE;
    _nethack_app.bNoHScroll = FALSE;
    _nethack_app.bNoVScroll = FALSE;

    _nethack_app.bCmdPad = !mswin_has_keyboard();

    _nethack_app.bWrapText = TRUE;
    _nethack_app.bFullScreen = TRUE;

#if defined(WIN_CE_SMARTPHONE)
    _nethack_app.bHideScrollBars = TRUE;
#else
    _nethack_app.bHideScrollBars = FALSE;
#endif

    _nethack_app.bUseSIP = TRUE;

    // check for running nethack programs
    nethackWnd = FindWindow(szMainWindowClass, NULL);
    if (nethackWnd) {
        // bring on top
        SetForegroundWindow(nethackWnd);
        return FALSE;
    }

    // init controls
    ZeroMemory(&InitCtrls, sizeof(InitCtrls));
    InitCtrls.dwSize = sizeof(InitCtrls);
    InitCtrls.dwICC = ICC_LISTVIEW_CLASSES;
    if (!InitCommonControlsEx(&InitCtrls)) {
        MessageBox(NULL, TEXT("Cannot init common controls"), TEXT("ERROR"),
                   MB_OK | MB_ICONSTOP);
        return FALSE;
    }

    // Perform application initialization:
    if (!InitInstance(hInstance, nCmdShow)) {
        return FALSE;
    }

    /* get command line parameters */
    p = _get_cmd_arg(
#if defined(WIN_CE_PS2xx) || defined(WIN32_PLATFORM_HPCPRO)
        lpCmdLine
#else
        GetCommandLine()
#endif
        );
    for (argc = 1; p && argc < MAX_CMDLINE_PARAM; argc++) {
        len = _tcslen(p);
        if (len > 0) {
            argv[argc] = _strdup(NH_W2A(p, buf, BUFSZ));
        } else {
            argv[argc] = "";
        }
        p = _get_cmd_arg(NULL);
    }
    GetModuleFileName(NULL, wbuf, BUFSZ);
    argv[0] = _strdup(NH_W2A(wbuf, buf, BUFSZ));

    resuming = pcmain(argc, argv);

    moveloop(resuming);

    return 0;
}

//
//   FUNCTION: InitInstance(HANDLE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable
//        and
//        create and display the main program window.
//
BOOL
InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    return TRUE;
}

PNHWinApp
GetNHApp()
{
    return &_nethack_app;
}

static int
eraseoldlocks()
{
    register int i;

    /* cannot use maxledgerno() here, because we need to find a lock name
     * before starting everything (including the dungeon initialization
     * that sets astral_level, needed for maxledgerno()) up
     */
    for (i = 1; i <= MAXDUNGEON * MAXLEVEL + 1; i++) {
        /* try to remove all */
        set_levelfile_name(gl.lock, i);
        (void) unlink(fqname(gl.lock, LEVELPREFIX, 0));
    }
    set_levelfile_name(gl.lock, 0);
    if (unlink(fqname(gl.lock, LEVELPREFIX, 0)))
        return 0; /* cannot remove it */
    return (1);   /* success! */
}

void
getlock()
{
    const char *fq_lock;
    char tbuf[BUFSZ];
    TCHAR wbuf[BUFSZ];
    HANDLE f;
    int fd;
    int choice;

    /* regularize(lock); */ /* already done in pcmain */
    Sprintf(tbuf, "%s", fqname(gl.lock, LEVELPREFIX, 0));
    set_levelfile_name(gl.lock, 0);
    fq_lock = fqname(gl.lock, LEVELPREFIX, 1);

    f = CreateFile(NH_A2W(fq_lock, wbuf, BUFSZ), GENERIC_READ, 0, NULL,
                   OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (f == INVALID_HANDLE_VALUE) {
        if (GetLastError() == ERROR_FILE_NOT_FOUND)
            goto gotlock; /* no such file */
        error("Cannot open %s", fq_lock);
    }

    CloseHandle(f);

    /* prompt user that the game alredy exist */
    choice = MessageBox(GetNHApp()->hMainWnd,
                        TEXT("There are files from a game in progress under "
                             "your name. Recover?"),
                        TEXT("Nethack"), MB_YESNO | MB_DEFBUTTON1);
    switch (choice) {
    case IDYES:
        if (recover_savefile()) {
            goto gotlock;
        } else {
            error("Couldn't recover old game.");
        }
        break;

    case IDNO:
        unlock_file(HLOCK);
        error("%s", "Cannot start a new game.");
        break;
    };

gotlock:
    fd = creat(fq_lock, FCMASK);
    if (fd == -1) {
        error("cannot creat lock file (%s.)", fq_lock);
    } else {
        if (write(fd, (char *) &svh.hackpid, sizeof(svh.hackpid))
            != sizeof(svh.hackpid)) {
            error("cannot write lock (%s)", fq_lock);
        }
        if (close(fd) == -1) {
            error("cannot close lock (%s)", fq_lock);
        }
    }
}

/* misc functions */
void error
VA_DECL(const char *, s)
{
    TCHAR wbuf[1024];
    char buf[1024];
    DWORD last_error = GetLastError();

    VA_START(s);
    VA_INIT(s, const char *);
    /* error() may get called before tty is initialized */
    if (iflags.window_inited)
        end_screen();

    vsprintf(buf, s, VA_ARGS);
    NH_A2W(buf, wbuf, sizeof(wbuf) / sizeof(wbuf[0]));
    if (last_error > 0) {
        LPVOID lpMsgBuf;
        if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER
                              | FORMAT_MESSAGE_FROM_SYSTEM
                              | FORMAT_MESSAGE_IGNORE_INSERTS,
                          NULL, last_error,
                          0, // Default language
                          (LPTSTR) &lpMsgBuf, 0, NULL)) {
            _tcsncat(wbuf, TEXT("\nSystem Error: "),
                     sizeof(wbuf) / sizeof(wbuf[0]) - _tcslen(wbuf));
            _tcsncat(wbuf, lpMsgBuf,
                     sizeof(wbuf) / sizeof(wbuf[0]) - _tcslen(wbuf));

            // Free the buffer.
            LocalFree(lpMsgBuf);
        }
    }
    MessageBox(NULL, wbuf, TEXT("Error"), MB_OK | MB_ICONERROR);
    VA_END();
    exit(EXIT_FAILURE);
}

TCHAR *
_get_cmd_arg(TCHAR *pCmdLine)
{
    static TCHAR *pArgs = NULL;
    TCHAR *pRetArg;
    BOOL bQuoted;

    if (!pCmdLine && !pArgs)
        return NULL;
    if (!pArgs)
        pArgs = pCmdLine;

    /* skip whitespace */
    for (pRetArg = pArgs; *pRetArg && _istspace(*pRetArg);
         pRetArg = CharNext(pRetArg))
        ;
    if (!*pRetArg) {
        pArgs = NULL;
        return NULL;
    }

    /* check for quote */
    if (*pRetArg == TEXT('"')) {
        bQuoted = TRUE;
        pRetArg = CharNext(pRetArg);
        pArgs = _tcschr(pRetArg, TEXT('"'));
    } else {
        /* skip to whitespace */
        for (pArgs = pRetArg; *pArgs && !_istspace(*pArgs);
             pArgs = CharNext(pArgs))
            ;
    }

    if (pArgs && *pArgs) {
        TCHAR *p;
        p = pArgs;
        pArgs = CharNext(pArgs);
        *p = (TCHAR) 0;
    } else {
        pArgs = NULL;
    }

    return pRetArg;
}

/*
 * Strip out troublesome file system characters.
 */

void nt_regularize(s) /* normalize file name */
register char *s;
{
    register unsigned char *lp;

    for (lp = s; *lp; lp++)
        if (*lp == '?' || *lp == '"' || *lp == '\\' || *lp == '/'
            || *lp == '>' || *lp == '<' || *lp == '*' || *lp == '|'
            || *lp == ':' || (*lp > 127))
            *lp = '_';
}

void
win32_abort()
{
    if (wizard)
        DebugBreak();
    abort();
}

void
append_port_id(buf)
char *buf;
{
    char *portstr = PORT_CE_PLATFORM " " PORT_CE_CPU;
    Sprintf(eos(buf), " %s", portstr);
}
