// DialogDsn.cpp : 实现文件
//

#include "stdafx.h"
#include "FirstStep.h"
#include "DialogDsn.h"
#include "afxdialogex.h"


// CDialogDsn 对话框

IMPLEMENT_DYNAMIC(CDialogDsn, CDialogEx)

CDialogDsn::CDialogDsn(CWnd* pParent /*=NULL*/)
	: CDialogEx(CDialogDsn::IDD, pParent)
{

	m_UserPwd = _T("");
	m_UserName = _T("");
	m_DsnName = _T("");
}

CDialogDsn::~CDialogDsn()
{
}

/*****************************************************************
**【函数名称】		__getRegInfo
**【函数功能】		获取注册表中数据源信息
**【参数】
**【返回值】
****************************************************************/
bool CDialogDsn::__getRegInfo()
{
	CRegKey key;

	// 打开键值失败
	if(key.Open(HKEY_CURRENT_USER, "Software\\FirstStep\\Database", KEY_READ) != ERROR_SUCCESS)
	{
		key.Create(HKEY_CURRENT_USER, "Software\\FirstStep\\Database");
	} 
	else
	{
		// DSN名称
		ULONG nSize = MAX_PATH;
		CHAR szTmp[MAX_PATH] = { 0 };
		key.QueryStringValue("DSN", szTmp, &nSize);
		m_DsnName = szTmp;

		// 用户名
		nSize = MAX_PATH;
		memset(szTmp, 0, MAX_PATH);
		key.QueryStringValue("USER", szTmp, &nSize);
		m_UserName = szTmp;

		// 口令
		nSize = MAX_PATH;
		memset(szTmp, 0, MAX_PATH);
		key.QueryStringValue("PASS", szTmp, &nSize);
		m_UserPwd = szTmp;
	}

	key.Close();
	return true;
}

/*****************************************************************
**【函数名称】		__setRegInfo
**【函数功能】		设置注册表中数据源信息
**【参数】
**【返回值】
****************************************************************/
bool CDialogDsn::__setRegInfo()
{
	// 保存配置信息到注册表
	CRegKey key;
	key.Open(HKEY_CURRENT_USER, "Software\\FirstStep\\Database", KEY_WRITE);
	key.SetStringValue("DSN", m_DsnName);
	key.SetStringValue("USER", m_UserName);
	key.SetStringValue("PASS", m_UserPwd);

	key.Close();
	return true;
}


void CDialogDsn::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
	DDX_Text(pDX, IDC_EDT_DB_PWD, m_UserPwd);
	DDX_Text(pDX, IDC_EDT_DB_USER, m_UserName);
	DDX_Text(pDX, IDC_EDT_DSN, m_DsnName);
}


BEGIN_MESSAGE_MAP(CDialogDsn, CDialogEx)
	ON_BN_CLICKED(IDOK, &CDialogDsn::OnBnClickedOk)
	ON_BN_CLICKED(IDCANCEL, &CDialogDsn::OnBnClickedCancel)
	ON_BN_CLICKED(IDC_BTN_DSN_TEST, &CDialogDsn::OnBnClickedBtnDsnTest)
END_MESSAGE_MAP()


// CDialogDsn 消息处理程序


void CDialogDsn::OnBnClickedOk()
{
	UpdateData(TRUE);

	// 生成连接字符串
	CString ConStr;;
	ConStr.Format(_T("DSN=%s; UID=%s; PWD=%s"), m_DsnName, m_UserName, m_UserPwd);

	CHAR szErrInfo[OTL_MAX_BUFF_SIZE] = { 0 };
	if(!IOtlConnection::getInstance()->ConnectTest(ConStr, szErrInfo))
	{
		CString strInfo = _T("数据库连接失败:\r\n");
		strInfo += szErrInfo;
		MessageBox(strInfo, "数据源配置", MB_ICONWARNING | MB_OK);
		return;
	}
	else
	{
		__setRegInfo();		// 保存配置到注册表
		IOtlConnection::getInstance()->Disconnect();
		IOtlConnection::getInstance()->Connect();
		CDialogEx::OnOK();
	}// end if
}


void CDialogDsn::OnBnClickedCancel()
{
	CDialogEx::OnCancel();
}


void CDialogDsn::OnBnClickedBtnDsnTest()
{
	UpdateData(TRUE);

	// 生成连接字符串
	CString ConStr;;
	ConStr.Format(_T("DSN=%s; UID=%s; PWD=%s"), m_DsnName, m_UserName, m_UserPwd);

	CHAR szErrInfo[OTL_MAX_BUFF_SIZE] = { 0 };
	if(!IOtlConnection::getInstance()->ConnectTest(ConStr, szErrInfo))
	{
		CString strInfo = _T("数据库连接失败：\r\n");
		strInfo += szErrInfo;
		MessageBox(strInfo, "数据源配置", MB_ICONWARNING | MB_OK);
	}
	else
	{
		CString strInfo = _T("数据库连接成功!");
		MessageBox(strInfo, "数据源配置", MB_ICONINFORMATION | MB_OK);
	}// end if
}



INT_PTR CDialogDsn::DoModal()
{	
	__getRegInfo();

	return CDialogEx::DoModal();
}


BOOL CDialogDsn::PreTranslateMessage(MSG* pMsg)
{
	// TODO: 在此添加专用代码和/或调用基类
	if((pMsg->message == WM_KEYDOWN) && (pMsg->wParam == VK_ESCAPE))
		return TRUE;

	return CDialogEx::PreTranslateMessage(pMsg);
}