expiring_temporal_vector.hpp

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#ifndef EXPIRING_TEMPORAL_VECTOR_HPP
#define EXPIRING_TEMPORAL_VECTOR_HPP
 
#include <vector>
#include <chrono>
#include <unordered_map>

template <typename T>
class ExpiringTemporalVector {
public:
    using Clock = std::chrono::steady_clock;
    using TimePoint = Clock::time_point;

    explicit ExpiringTemporalVector(int time_limit_seconds);

    void push_back(const T& element);

    std::vector<T> get_elements();

    std::vector<T> get_elements_since(TimePoint time);
 
    // Iterator methods for non-const access
    typename std::vector<T>::iterator begin();
    typename std::vector<T>::iterator end();
 
private:
    void clean_expired_elements();
 
    std::vector<T> elements_;  // Vector of elements
    std::unordered_map<int, TimePoint> timestamps_;  // Map from index to timestamp
    std::chrono::seconds time_limit_;
    int current_index_;  // Current index to track the next element
};
 
#include "expiring_temporal_vector.tpp"
 
#endif // EXPIRING_TEMPORAL_VECTOR_HPP