Data.cpp

#include "Data.h"

using namespace std;

Data::Data() : varName() {}

Data::Data(const string &name, int initialValue, int initialTime)
    : varName(name) {
    setValue(initialValue, initialTime);
}

bool Data::getValueAt(int time, int &value, int &commitTime) const {
    bool found = false;
    int bestTime = -1;
    for (const auto &v : versions) {
        if (v.commitTime <= time && v.commitTime >= bestTime) {
            bestTime = v.commitTime;
            value = v.value;
            commitTime = v.commitTime;
            found = true;
        }
    }
    return found;
}

void Data::setValue(int value, int commitTime) {
    versions.push_back({value, commitTime});
}

int Data::getLatestCommitTime() const {
    if (versions.empty()) return -1;
    return versions.back().commitTime;
}

int Data::getLatestValue() const {
    if (versions.empty()) return 0;
    return versions.back().value;
}