QueryCached.h

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#ifndef QUERYCACHED_H
#define QUERYCACHED_H
 
#include "WeatherData.h" // Assumed to be a struct or class containing weather information
#include <QObject> // Base class for QueryCached, enabling signals/slots
#include <optional> // For std::optional in requestWeatherData
 
// Forward declaration
class QTimer; // Required for the timer member
 
class QueryCached : public QObject {
    Q_OBJECT
 
public:
    explicit QueryCached(QObject* parent = nullptr);
 
    void setTimeoutInterval(int interval);
 
    void installWeatherData(const WeatherData& data);
 
    std::optional<WeatherData> requestWeatherData();
 
signals:
    void weatherCacheOutdated();
 
private slots:
    void onCacheTimeout();
 
private:
    WeatherData cachedWeatherData; 
    QTimer* timer; 
    bool weatherCacheNeedsUpdate { true }; 
};
 
#endif // QUERYCACHED_H