/*
 * Copyright 2000, International Business Machines Corporation and others.
 * All Rights Reserved.
 * 
 * This software has been released under the terms of the IBM Public
 * License.  For details, see the LICENSE file in the top-level source
 * directory or online at http://www.openafs.org/dl/license10.html
 */

/*
 * INCLUDES _________________________________________________________________
 *
 */
#include <winsock2.h>
#include <ws2tcpip.h>

extern "C" {
#include <afs/param.h>
#include <afs/stds.h>
}

#include "afscfg.h"
#include "resource.h"


/*
 * DEFINITIONS _________________________________________________________________
 *
 */
static HWND hDlg = 0;				// HWND for this page's dialog

#define	FIRST_SERVER_STEP		sidSTEP_THREE
#define	NOT_FIRST_SERVER_STEP	sidSTEP_FOUR

#define MIN_AFS_UID		1
#define MAX_AFS_UID		UD_MAXVAL


/*
 * PROTOTYPES _________________________________________________________________
 *
 */
static void OnInitDialog(HWND hwndDlg);
static void CheckEnableButtons();
static void SavePageInfo();
static void ShowPageInfo();
static void UseNextUid(BOOL bUseNext);


/*
 * EXPORTED FUNCTIONS _________________________________________________________________
 *
 */

/*
 * Dialog Procs _________________________________________________________________
 *
 */
BOOL CALLBACK InfoPage2DlgProc(HWND hRHS, UINT msg, WPARAM wp, LPARAM lp)
{
    if (WizStep_Common_DlgProc (hRHS, msg, wp, lp))
        return FALSE;

    switch (msg) {
    case WM_INITDIALOG:
	OnInitDialog(hRHS);
	break;

    case WM_COMMAND:
	switch (LOWORD(wp)) {
	case IDC_WIZARD:
	    if (HIWORD(wp) == wcIS_STATE_DISABLED) {
		int nState = g_pWiz->GetState();

		// Disable step 3 if we are not the first server
		if (nState == sidSTEP_THREE)
		    return !g_CfgData.bFirstServer;

		// Disable step 4 if we are the first server
		if (nState == sidSTEP_FOUR)
		    return g_CfgData.bFirstServer;
	    }
	    break;

	case IDNEXT:
	    SavePageInfo();
	    g_pWiz->SetState (sidSTEP_FIVE);
	    break;

	case IDBACK:
	    SavePageInfo();
	    g_pWiz->SetState (sidSTEP_TWO);
	    break;

	case IDC_USE_NEXT_UID:
	    UseNextUid(TRUE);
	    CheckEnableButtons();
	    break;

	case IDC_USE_THIS_UID:
	    UseNextUid(FALSE);
	    CheckEnableButtons();
	    break;

	case IDC_ADMIN_NAME:
	case IDC_ADMIN_PW:
	case IDC_VERIFY_ADMIN_PW:
	case IDC_HOSTNAME:
	    if (HIWORD(wp) == EN_CHANGE)
		CheckEnableButtons();
	    break;

	}
	break;
    }	

    return FALSE;
}

/*
 * STATIC FUNCTIONS _________________________________________________________________
 *
 */

/*
 * Event Handler Functions _________________________________________________________________
 *
 */
static void OnInitDialog(HWND hwndDlg)
{
    hDlg = hwndDlg;

    g_pWiz->EnableButtons(BACK_BUTTON);

    SetUpDownRange(hDlg, IDC_AFS_UID_SPINNER, MIN_AFS_UID, MAX_AFS_UID);

    ShowPageInfo();

    g_pWiz->SetDefaultControl(IDC_ADMIN_NAME);
}


/*
 * Utility Functions _________________________________________________________________
 *
 */
static void CheckEnableButtons()
{	
    BOOL bDisable = FALSE;

    TCHAR szDummy[cchRESOURCE];
    TCHAR szPW[cchRESOURCE];
    TCHAR szVerifyPW[cchRESOURCE];

    bDisable |= lstrlen(GetWndText(hDlg, IDC_ADMIN_NAME, szDummy)) == 0;

    bDisable |= lstrlen(GetWndText(hDlg, IDC_ADMIN_PW, szPW)) == 0;

    if (IsWindowEnabled(GetDlgItem(hDlg, IDC_VERIFY_ADMIN_PW))) {
	GetWndText(hDlg, IDC_VERIFY_ADMIN_PW, szVerifyPW);
	bDisable |= !lstrlen(szVerifyPW) || lstrcmp(szPW, szVerifyPW);
    }

    if (IsWindowEnabled(GetDlgItem(hDlg, IDC_ADMIN_UID)))
	bDisable |= lstrlen(GetWndText(hDlg, IDC_ADMIN_UID, szDummy)) == 0;

    if (IsWindowEnabled(GetDlgItem(hDlg, IDC_HOSTNAME)))
	bDisable |= lstrlen(GetWndText(hDlg, IDC_HOSTNAME, szDummy)) == 0;

    if (bDisable)
	g_pWiz->EnableButtons(BACK_BUTTON);
    else
	g_pWiz->EnableButtons(BACK_BUTTON | NEXT_BUTTON);
}	

static void SavePageInfo()
{
    TCHAR szText[cchRESOURCE];
	
    lstrncpy(g_CfgData.szAdminName, GetWndText(hDlg, IDC_ADMIN_NAME, szText), MAX_ADMIN_NAME_LEN);
    lstrncpy(g_CfgData.szAdminPW, GetWndText(hDlg, IDC_ADMIN_PW, szText), MAX_ADMIN_PW_LEN);

    if (g_pWiz->GetState() == FIRST_SERVER_STEP) {
	g_CfgData.bUseNextUid = IsButtonChecked(hDlg, IDC_USE_NEXT_UID);
	if (!g_CfgData.bUseNextUid)
	    lstrncpy(g_CfgData.szAdminUID, GetWndText(hDlg, IDC_ADMIN_UID, szText), MAX_UID_LEN);
    }	

    if (g_pWiz->GetState() == NOT_FIRST_SERVER_STEP)
	lstrncpy(g_CfgData.szCellServDbHostname, GetWndText(hDlg, IDC_HOSTNAME, szText), MAX_MACHINE_NAME_LEN);
}	

static void ShowPageInfo()
{
    SetWndText(hDlg, IDC_ADMIN_NAME, g_CfgData.szAdminName);
    SetWndText(hDlg, IDC_ADMIN_PW, g_CfgData.szAdminPW);
    SetWndText(hDlg, IDC_VERIFY_ADMIN_PW, g_CfgData.szAdminPW);
    SetWndText(hDlg, IDC_HOSTNAME, g_CfgData.szCellServDbHostname);

    if (g_pWiz->GetState() == FIRST_SERVER_STEP) {
	if (g_CfgData.bUseNextUid)
	    SetCheck(hDlg, IDC_USE_NEXT_UID);
	else
	    SetCheck(hDlg, IDC_USE_THIS_UID);
	UseNextUid(g_CfgData.bUseNextUid);
	SetWndText(hDlg, IDC_ADMIN_UID, g_CfgData.szAdminUID);
    }
}

static void UseNextUid(BOOL bUseNext)
{
    ENABLE_STATE es = bUseNext ? ES_DISABLE : ES_ENABLE;
	
    SetEnable(hDlg, IDC_ADMIN_UID, es);
    SetEnable(hDlg, IDC_AFS_UID_SPINNER, es);
}

