#include<fstream>
#include<string>
#include<string>
#include<graphics.h>

bool CusInputBox(char* input, int length, const char* prompt) {
	std::cout << prompt << std::endl;
	std::cin.getline(input, length);
	return true;
}
class Account {
private:
	int num;
	std::string* username;
	std::string* password;
public:
	Account() {
		username = NULL;
		password = NULL;
		num = 0;
	}
	int& get_num() {
		return num;
	}
	std::string*& get_username() {
		return username;
	}
	std::string*& get_password() {
		return password;
	}
	// 查找输入是否在用户名队列之中
	int find_username(std::string input) {
		for (int i = 0; i < num; i++) {
			if (input == username[i]) return i;
		}
		return -1; // 若不在用户名队列之中则返回-1
	}
	// 用户名与密码是否对应
	bool is_correct(int i, std::string input) {
		return input == password[i];
	}
};

void init_Account(Account& account) {
	std::fstream filename;
	filename.open("account.txt");
	filename >> account.get_num();
	int n = account.get_num();
	account.get_username() = new std::string[n];
	account.get_password() = new std::string[n];
	for (int i = 0; i < n; i++) {
		filename >> account.get_username()[i];
		filename >> account.get_password()[i];
	}
	
}





void log_in_2(Account& account) {
	init_Account(account);
	bool is_cancel = false;
	std::string username;
	std::string password;
	int i = 0;
	char temp_username[256];
	char temp_password[256];

	while (true) {
		bool correct = false;
		is_cancel = !InputBox((LPTSTR) & (temp_username), 10, (LPCTSTR)"请输入用户名：", (LPCTSTR)"登录", (LPCTSTR)"0", 0, 0, 0);
		// is_cancel = !CusInputBox(tempInput, 256, "请输入用户名：");
		if (is_cancel) exit(0);
		else {
			username = temp_username;
			for (i = 0; i < account.get_num(); i++) {
				std::string tempstr = account.get_username()[i];
				// username = (std::string)username;
				if (tempstr == username) {
					correct = true;
					break;
				}
			}
			if (!correct) ::MessageBox(GetHWnd(), (LPCTSTR)"无此用户，请重输", (LPCTSTR)"打开", MB_OK); //提示框
		}
		if (correct) break;
	}
	while (true) {
		bool correct = false;
		is_cancel = !InputBox((LPTSTR) & (temp_password), 10, (LPCTSTR)"请输入密码：", (LPCTSTR)"登录", (LPCTSTR)"0", 0, 0, 0);
		if (is_cancel) exit(0);
		else {
			password = temp_password;
			if (account.get_password()[i] == password) correct = true;
			if (!correct) ::MessageBox(GetHWnd(), (LPCTSTR)"密码错误，请重输", (LPCTSTR)"登录", MB_OK); //提示框
		}
		if (correct) {
			break;
		}
	}
	::MessageBox(GetHWnd(), (LPCTSTR)"登陆成功！", (LPCTSTR)"Hello", MB_OK);
}