/cpp-homework/Bookshop/controller.cpp

//管理员函数文件



#ifndef COTROLLER_CPP

#define COTROLLER_CPP



#include "controller.h"

#include <iostream>

#include <conio.h> 

#include <sstream>

#include <iomanip>

#include <fstream>

#include <functional>

#include <algorithm>

#include <string>

#include <vector>



using namespace std;



//***************************查看已进的书籍************************************

void Controller::read_enterbook()

{

	

	string mon;

	string day;

	string year;

	string time;

	string bookname;

	string author;

	string serial_number ;

	int  number;

	double price;

	ifstream infile ("enteredbook.txt",ios::in);

	if (!infile)

		throw 1; 

	else

		while (infile>>mon)

		{

			infile >> day >> year >> time >> serial_number >> bookname >> author >> number >> price;

			cout << left << setw(3) << mon << setw(3) << day << setw(5) << year << setw(10) << time

   		  		 << setw(10) << serial_number << setw(16) << bookname << setw(16) << author

				 << setw(6) << number << setw(6) << price << endl << endl;

		}

		

}



//******************************进书**************************************

void Controller::enter_book()

{

	vector< Book > a;

    Book book;

	a = setbookshop();

	string bookname;

	string author;

	string serial_number ;

	int  number;

	double price;

	ofstream enter("enterbook.txt",ios::app);

	if (!enter)

	    throw 1; 

	else

	{

b:	cout << "请输入编号 : " ;

    cin >>serial_number  ;



	cout << "请输入书名 : " ;

	cin >> bookname ;



	cout << "请输入作者姓名 : " ;

	cin >> author;



	cout << "请输入数量 : " ;

	cin>>number;



	cout << "请输入单价 : ";

	cin >> price;

   

	for( int i = 0; i <a.size() ; i++ )

		if( serial_number == a[i].get_serial_number() )

			if( bookname != a[i].get_bookname() || author !=a[i].get_author() || price != a[i].get_price() )

				throw 2;

			else

			{

				a[i].set_number(a[i].get_number() + number) ;

				enter <<left<<setw(12)<<__DATE__

					  <<setw(12)<<__TIME__<<setw(10)<<serial_number

					  << setw( 16 ) <<bookname << setw( 16 ) << author

			          << setw( 8 ) <<number << setw( 10 ) << price << endl;

				break;

			}

	if( i >= a.size() )

	{

		book.set_serial_number(serial_number);

		book.set_bookname(bookname);

		book.set_author(author);

		book.set_number(number);

		book.set_price(price);

		a.push_back(book);

		enter <<left<<setw(12)<<__DATE__

		  	  <<setw(12)<<__TIME__<<setw(10)<<serial_number

			  << setw( 16 ) <<bookname << setw( 16 ) << author

			  << setw( 8 ) <<number << setw( 10 ) << price << endl;

	}

	

	cout << "继续请按 y ，否则请按其他任意键。请选择 : ";

	char ch;

	cin >> ch;



	if( ch == 'y' )

		goto b;

	else

	{

		ofstream outfile( "Bookshop.txt" );



		if( !outfile )

			throw 1;

		else

		{

			for (i=0;i<a.size();i++)

			{

				outfile << left <<setw( 10 ) << a[i].get_serial_number() << setw( 16 ) << a[i].get_bookname()

						<< setw( 16 ) << a[i].get_author() << setw( 8 ) << a[i].get_number() 

						<< setw( 10 ) << a[i].get_price() << endl;

			}

		}



		outfile.close();



	}

	enter.close();

	}

}



//***************************查看已销售的书******************************************

void Controller::see_soldbook()

{      

	vector<Book> a;

	ifstream infile( "Soldbook.txt" ,  ios::in );



	if( !infile )

		throw 1;

	else {

		infile.read( (char *)&a,sizeof( vector<Book> ) );

		book_sort(  a, 'M');

	   

	}



	infile.close();



    cout << "需要删除销售记录请按 y , 否则请按其他任意键 :";

	char ch;

	cin >> ch;

	if( ch == 'y' )

		clear_message( "soldbook.txt" );

}



//*****************************输入密码 ，正确后才能进入管理员界面******************************************

 

void Controller::enter_password()    

{

	string password;

	string s1;

	int i = 0,m = 0;



	ifstream infile( "Coding.txt" );



    if( !infile )

	{

		throw 1;

        infile.close();

	}

	else{

	  infile >> s1; 

	  infile.close();

	  cout << "\n                 请输入密码 : ";



	  password=getpwd(   pwd   ); 

	  

	  if( s1 == password )

			showControllerLoginMenu();

	  else

	  {

		  while( 1 )

		  {

			  cout<<"\n                 请输入密码 : ";

			  password=getpwd(   pwd   ); 

			  

			  if(s1==password)

			  {

				   showControllerLoginMenu();

				   break;

			  }

			  else{

				  cout << "登录失败 ! (输入 y 表示重新登录，其他任意键表示不登录.) \n "

					   << "     请选择 : ";

				  char m;

				  cin >> m;



				  if(m == 'y')

					  pwd.clear();

				  else

					  goto f;

			  }

		  }

	 }

	

f:    cout << endl;

	}

}





//************************管理员界面********************************

char Controller::showControllerLoginMenu()   

{

	system( "cls" );

	system( "color 47" );



	cout << endl << " 尊敬的管理员,你好! " << endl



		<< "                >>>>>>>>>>>>>>> 欢迎监督书店营业状况 <<<<<<<<<<<<<<< " << endl 



		<< "                >> 请选择功能:                                    >> " << endl 



		<< "                >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> " << endl



		<< "                >> 1.找书                                         >> " << endl

		

		<< "                >> 2.查看销售业绩                                 >> " << endl

		

		<< "                >> 3.买进书籍                                     >> " << endl



		<< "                >> 4.查看已卖出的书籍                             >> " << endl



		<< "                >> 5.查看已售完的书籍                             >> " << endl



		<< "                >> 6.修改密码                                     >> " << endl



		<< "                >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> " << endl;



	cout<<"请选择 : ";

	char ch;

	cin>>ch;

	return ch;

}



//********************查看留言****************************************                                                                                                                                                                                                                                                  

void Controller::read_leaved_words(){   

	string s1=0;

	ifstream infile( "Leavedwords.txt" );



	if( !infile )

		throw 1;

	else

	{

		while( infile >> s1 )

		{

			cout << s1 << endl;

		}



		cout << "是否清除留言 ? "

			 << "  (输入 y 表示清除留言 , 其他任意键表示不清除留言 .)\n"

			 << "请选择 : ";

		char i;

		cin >> i;



		if(  i == 'y'  )

		      clear_message(  "leavewords.txt"  );

	}



}





//*******************************修改密码****************************************	   

void Controller::changepassword()

{      

b:	  cout <<  "请输入新密码 : ";

      coding1 =  getpwd(   pwd   ); 

	  pwd.clear();

	  cout << "请确认新密码 : ";

	  coding2 = getpwd( pwd );

	  pwd.clear();



	  if( coding1 == coding2 )

	  {

		  ofstream outfile( "Coding.txt" );

		  if( !outfile )

			  throw 1;

		  else{

				outfile << coding1 << endl;

				cout << "修改成功 !\n";	

		  }



		  outfile.close();



	  }

	  else{

		   cout << "输入错误 , 请确认后重新输入 !\n";

		   goto  b;

	  }



 }

      

//****************************密码设置方式******************************************

string  Controller::getpwd( vector<char>  &vec )    

{   

  char   c = 0 ;   

  while( ( c = _getch() )!= '\r' )          

  {                                                        //_getch()   接收一个字符     且不在屏幕上显示     

	  if(c   ==   0x08)                       //0x08   为退格符     判断是不是输入的退格符       

	  {   

		  if( !vec.empty() )   

			 {   

			  cout << char(0x08) <<'   '<<char(0x08);       //若是退格符     进行退格     退格符不进行抹除     所以要输出一个空格   

			  vec.pop_back();   

			}     

		  continue;     

	  }   

	  else   

		 vec.push_back(   c   );   

            

	  cout << '*' ;   

  }   

	  cout << endl;   

    

      char* cpwd = new char[ vec.size() + 1 ];   

	  char*  p = cpwd;     

    

	  for ( int i = 0 ; i < vec.size() ; i++ , cpwd++ )   

			 *cpwd = vec[i]   ;

	  

	  *cpwd = '\0' ;   

      string  spwd(p);   

    

	  return  spwd;   

 }



#endif