// UserDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Library.h"
#include "UserDlg.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CUserDlg dialog


CUserDlg::CUserDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CUserDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CUserDlg)
	m_bIsAdmin = FALSE;
	m_strUser = _T("");
	m_strPass = _T("");
	m_strRePass = _T("");
	//}}AFX_DATA_INIT
}


void CUserDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CUserDlg)
	DDX_Control(pDX, IDOK, m_bntOK);
	DDX_Control(pDX, IDC_BUTTON_NEW, m_bntNew);
	DDX_Control(pDX, IDC_BUTTON_DELETE, m_bntDelete);
	DDX_Control(pDX, IDC_BUTTON_CANCEL, m_bntCancel);
	DDX_Control(pDX, IDC_EDIT2, m_ctrPass);
	DDX_Control(pDX, IDC_EDIT1, m_ctrUser);
	DDX_Control(pDX, IDC_LIST_USERNAME, m_ctrList);
	DDX_Check(pDX, IDC_CHECK1, m_bIsAdmin);
	DDX_Text(pDX, IDC_EDIT1, m_strUser);
	DDX_Text(pDX, IDC_EDIT2, m_strPass);
	DDX_Text(pDX, IDC_EDIT3, m_strRePass);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CUserDlg, CDialog)
	//{{AFX_MSG_MAP(CUserDlg)
	ON_NOTIFY(NM_CLICK, IDC_LIST_USERNAME, OnClickListUsername)
	ON_BN_CLICKED(IDC_BUTTON_NEW, OnButtonNew)
	ON_BN_CLICKED(IDC_BUTTON_DELETE, OnButtonDelete)
	ON_BN_CLICKED(IDC_BUTTON_CANCEL, OnButtonCancel)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUserDlg message handlers

BOOL CUserDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	//創建用戶列表
	m_ctrList.InsertColumn(0,"用戶名");
	m_ctrList.SetExtendedStyle(LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES);
	m_ctrList.SetColumnWidth(0,120);
	//在添加用戶列表中添加用戶名
	RefreshData();

	return TRUE;  
}
void CUserDlg::RefreshData() 
{

	m_ctrList.SetFocus();
	//清空用戶列表
	m_ctrList.DeleteAllItems();
	m_ctrList.SetRedraw(FALSE);
	
	CString strSQL;
	UpdateData(TRUE);
	//打開記錄集
	strSQL="select * from user";
	if(!m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL))
	{
		MessageBox("打開數據庫失敗!","數據庫錯誤",MB_OK);
		return ;
	}	
	//添加用戶名到用戶列表中
	int i=0;
	while(!m_recordset.IsEOF())
	{
		m_ctrList.InsertItem(i++,m_recordset.m_user);
		m_recordset.MoveNext();
	}
	m_recordset.Close();
	m_ctrList.SetRedraw(TRUE);

}
void CUserDlg::OnClickListUsername(NMHDR* pNMHDR, LRESULT* pResult) 
{
	CString strSQL;
	UpdateData(TRUE);
	//從數據庫中獲取選擇用戶名的資料
	int i = m_ctrList.GetSelectionMark();
	m_strUser = m_ctrList.GetItemText(i,0);
	strSQL.Format("select * from user where user='%s'",m_strUser);
	if(!m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL))
	{
		MessageBox("打開數據庫失敗!","數據庫錯誤",MB_OK);
		return ;
	}	
	//顯示用戶資料
	m_strPass = m_recordset.m_passwd;
	m_strRePass = m_strPass;
	m_bIsAdmin = m_recordset.m_isadmin;
	m_recordset.Close();	
	UpdateData(FALSE);
	*pResult = 0;
}

void CUserDlg::OnButtonNew() 
{
	//清空用戶資料
	m_strUser = "";
	m_strPass = "";
	m_strRePass = "";
	m_bIsAdmin = FALSE;
	//設置用戶名編輯框為可用
	m_ctrUser.EnableWindow(TRUE);
	m_ctrUser.SetFocus();
	//更新數據到界面
	UpdateData(FALSE);
}

void CUserDlg::OnButtonDelete() 
{

	UpdateData(TRUE);
	//判斷是否指定用戶
	if(m_strUser=="")
	{
		MessageBox("請選擇一個用戶！");
		return;
	}

	CString strSQL;
	strSQL.Format("select * from user where user='%s'",m_strUser);
	if(!m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL))
	{
		MessageBox("打開數據庫失敗!","數據庫錯誤",MB_OK);
		return ;
	}
	//刪除該用戶
	m_recordset.Delete();
	m_recordset.Close();

	//刷新用戶列表
	RefreshData();

	m_strUser = "";
	m_strPass = "";
	m_strRePass = "";
	m_bIsAdmin = FALSE;
	UpdateData(FALSE);
}

void CUserDlg::OnOK() 
{
	UpdateData();
	if(m_ctrUser.IsWindowEnabled())
	{//增加新用戶的輸入檢查
		if(m_strUser=="")
		{
			MessageBox("請填寫用戶名！");
			m_ctrUser.SetFocus();
			return;
		}
	}
	else
	{//修改用戶信息的輸入檢查
		if(m_strUser=="")
		{
			MessageBox("請選擇一個用戶！");
			return;
		}
	}
	//限制密碼不能為空
	if(m_strPass=="")
	{ 
		MessageBox("密碼不能為空，請輸入密碼！");
		m_ctrPass.SetFocus();
		return;
	}
	//驗證密碼與確認密碼是否一致
	if(m_strPass!=m_strRePass)
	{ 
		MessageBox("兩次輸入地密碼不一致，請重新輸入密碼！");
		m_ctrPass.SetFocus();
		m_strPass = "";
		m_strRePass = "";
		UpdateData(FALSE);
		return;
	}
	//打開記錄集
	CString strSQL;
	strSQL.Format("select * from user where user='%s'",m_strUser);
	if(!m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL))
	{
		MessageBox("打開數據庫失敗!","數據庫錯誤",MB_OK);
		return ;
	}
	if(m_ctrUser.IsWindowEnabled())
	{//增加新用戶
		//判斷用戶是否已經存在
		if(m_recordset.GetRecordCount()!=0)
		{
			m_recordset.Close();
			MessageBox("該用戶已經存在！");
			return;
		}
		m_recordset.AddNew();
		m_recordset.m_user = m_strUser;
		m_recordset.m_passwd = m_strPass;
		m_recordset.m_isadmin = m_bIsAdmin;
		m_recordset.Update();
		MessageBox("用戶添加成功！請記住用戶名和密碼！");
		m_recordset.Close();
	}
	else
	{//修改用戶信息
		//判斷用戶是否不存在
		if(m_recordset.GetRecordCount()==0)
		{ 
			m_recordset.Close();
			MessageBox("該用戶不存在！請更新數據庫");
			return;
		}
		m_recordset.Edit();
		m_recordset.m_user = m_strUser;
		m_recordset.m_passwd = m_strPass;
		m_recordset.m_isadmin = m_bIsAdmin;
		m_recordset.Update();
		MessageBox("用戶修改成功！請記住用戶名和密碼！");
		m_recordset.Close();
	}
	m_ctrUser.EnableWindow(FALSE);
	//更新用戶列表	
	RefreshData();

}

void CUserDlg::OnButtonCancel() 
{
	// TODO: Add your control notification handler code here
	m_strUser = "";
	m_strPass = "";
	m_strRePass = "";
	m_bIsAdmin = FALSE;
	m_ctrUser.EnableWindow(FALSE);
	UpdateData(FALSE);	
}