#include<iostream>
#include"library.h"
#include"book.h"
using std::cout;
using std::cin;
using std::endl;
extern Book booklist[50];
extern int num;
void wxy::jieshu()
{
	char ch;
	cin.get(ch);
	if (num == 0)
	{
		cout << "Sorry,there are no books in the library,so borrowing books is not supported." << endl;
	}
	else
	{
		for (;;)
		{
			int g{1};
			int xv{};
			cout << "Please input the name of the book" << endl;
			char name[80];
			cin.getline(name, 80);
			cin.clear();
			for (int i{}; i < num; i++) {
				if (strcmp(name, booklist[i].Name) == 0) {
					g = 0;
					xv = i;
					break;
				}


			}
			if (g)
			{
				cout << "there is no such book" << endl;
			}
			else
			{
				if (booklist[xv].amount == 0)
				{
					cout << "Sorry,all the books are on loan." << endl;
				}
				else
				{
					booklist[xv].amount--;
					wxy::daochu();
					cout << "Successful borrowing!" << endl;
				}
			}
			cout << "wanna go on? press n to quit,press enter to continue" << endl;
			cin.get(ch);
			if (ch == 'n' || ch == 'N')
			{
				break;
			}
		}
	}
}