#include <string>
#include <iostream>
#include <iomanip>
#include <vector>

using namespace std;

class person
{ public:
    string fname, lname;
    double salary;
    string dept;

  person(string f, string l, double s, string d);
  void print(ostream & out) const; };

person::person(string f, string l, double s, string d)
{ fname = f;
  lname = l;
  salary = s;
  dept = d; };
  
void person::print(ostream & out) const
{ out << fname << " " << lname << " of " << dept << ", $" << setprecision(2) << salary << "."; }

ostream & operator<<(ostream & out, const person & p)
{ p.print(out);
  return out; }

class database
{ protected:
    vector<person *> employees;

  public:
    void add_employee(string f, string l, double s, string d);
    void list_employees();
    person * find_employee(string name); };

void database::add_employee(string f, string l, double s, string d)
{ person * p = new person(f, l, s, d);
  employees.push_back(p); }

void database::list_employees()
{ for (int i = 0; i < employees.size(); i += 1)
    cout << * employees[i] << "\n"; }

person * database::find_employee(string name)
{ for (person * p: employees)
    if (p->fname == name || p->lname == name)
      return p;
  return NULL; }

int main()
{ database db;
  db.add_employee("Mary", "Marlowe", 123456.00, "Management");
  db.add_employee("Dennis", "Dog", 54321.50, "Design");
  db.add_employee("Eric", "Earwig", 34567.75, "Engineering");
  db.add_employee("Tammy", "Teapot", 23500.00, "Tetrahedrons");
  db.add_employee("Francine", "Frogge", 168742.50, "Management");
  db.add_employee("Geoffrey", "Georaffe", 21005.99, "Geography");
  db.add_employee("Lolita", "Lambchop", 25300.00, "Lighting");
  db.add_employee("Indiana", "Impediment", 1500.00, "Intern");
  db.add_employee("Germania", "Gastropod", 47299.99, "Geography");
  db.add_employee("Olivia", "Ointment", 25000000.00, "Owner");

  cout << fixed;     // opposite and default is scientific
  
  string line, cmd;
  while (true)
  { cout << "\n> ";
    getline(cin, line);
    if (cin.fail())
    { cout << "\n";
      break; }

    istringstream in(line);
    in >> cmd;
    if (in.fail())
      continue;

    else if (cmd == "list")
      db.list_employees();

    else if (cmd == "find")
    { string name;
      in >> name;
      if (in.fail())
      { cout << "name missing\n";
        continue; }
      person * p = db.find_employee(name);
      if (p == NULL)
        cout << "no such person\n";
      else
        cout << * p << "\n"; }

    else if (cmd == "raise")
    { string name;
      double percent;
      in >> name >> percent;
      if (in.fail())
      { cout << "name or percentage or both missing\n";
        continue; }
      person * p = db.find_employee(name);
      if (p == NULL)
        cout << "no such person\n";
      else
        p->salary *= (1.0 + percent / 100.0); }
      
    else if (cmd == "exit")
      break;

    else
      cout << "command '" << cmd << "' not recognised\n"; } }