Account.h

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#pragma once
#include <string>
#include <vector>
#include <cmath>
#include "Transaction.h"
 
 
class Account {
public:
    std::string id;
    std::string name;
    double balance = 0.0;
    std::string currency = "USD";
    std::string userId;
    std::time_t createdAt = 0;
 
 
    virtual ~Account() = default;
 
 
    virtual bool reconcileAccount(const std::vector<Transaction>& transactions);
    virtual void persist();
    virtual std::string type() const { return "Account"; }
};
 
 
inline bool Account::reconcileAccount(const std::vector<Transaction>& transactions) {
    double computed = 0.0;
    for (const auto &t : transactions) {
        if (t.accountId == id) computed += t.amount;
    }
 
    return std::abs(computed - balance) < 0.01;
}
inline void Account::persist() { }
 
 
class CheckingAccount : public Account { public: std::string type() const override { return "CheckingAccount"; } };
class CreditAccount : public Account { public: double creditLimit = 0.0; std::string type() const override { return "CreditAccount"; } };
class SavingsAccount : public Account { public: double interestRate = 0.0; std::string type() const override { return "SavingsAccount"; } };