#include <fstream>
#include <iostream>
#include <ostream>

using namespace std;
const string FILE_PATH = "./30.out";

class StudentInfo {
  char name[30];
  uint age;
  char sex;
  uint height;
public:
  void read();
  void write();
};

void StudentInfo::read() {
  cout << "Name: ";
  cin >> name;
  cout << "Age: ";
  cin >> age;
  cout << "Sex (m/f): ";
  cin >> sex;
  cout << "Height: ";
  cin >> height;
  cout << "[LOG] Data read\n";
}

void StudentInfo::write() {
  ofstream file(FILE_PATH);
  file.close();
  file.open(FILE_PATH, ios_base::app);

  file << "Name: " << name << endl
       << "Age: " << age << endl
       << "Sex: " << (sex == 'm' ? "Male" : "Female") << endl
       << "Height: " << height << "cm";

  cout << "[LOG] Data written\n";

  file.close();
}

int main() {
  StudentInfo foo;
  string line;

  foo.read();
  foo.write();

  ifstream file(FILE_PATH);

  if (!file.is_open())
    exit(1);

  cout << "File contents: \n";
  
  while (getline(file, line)) {
    cout << line;
    if (file.peek() != EOF) {
      cout << endl;
    }
  }

  return 0;
}