#ifndef ACCOUNT_HPP
#define ACCOUNT_HPP

#include <cstdint>
#include <iostream>
#include <string>

namespace bank {

class Account {
public:
  explicit Account(std::string owner) : Account(owner, 0l) {}
  explicit Account(std::string owner, uint32_t deposit);
  void deposit(uint32_t amount);
  virtual uint32_t withdraw(uint32_t amount);
  int64_t balance() const { return balance_; }
  unsigned long number() const { return number_; }
  std::string owner() const { return owner_; }
private:
  int64_t balance_ = 0;
  std::string owner_;
  unsigned long number_;
  static unsigned long next_number_;
};

std::ostream& operator<<(std::ostream& out, const Account& a);

class ChildAccount : public Account {
public:
  ChildAccount(std::string owner) : Account(owner) {}
  ChildAccount(std::string owner, uint32_t deposit)
    : Account(owner, deposit) {}
  uint32_t withdraw(uint32_t amount) override;
};

}  // namespace bank

#endif  // ACCOUNT_HPP