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cleaned_source_code/Sqbase/qsubscriptionmanager.h

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+#ifndef QSUBSCRIPTIONMANAGER_H
+#define QSUBSCRIPTIONMANAGER_H
+#include <QObject>
+#include <QList>
+#include <QMap>
+#include <QSharedPointer>
+#include <QDateTime>
+#include <QMutex>
+#include "BZStruct.h"
+struct SubscriptionConfig {
+    QString stockCode;
+    double threshold;  
+    bool enabled;
+    QDateTime lastUpdated;
+    SubscriptionConfig() : threshold(0.0), enabled(true) {}
+    SubscriptionConfig(const QString& code, double thresh, bool en = true) 
+        : stockCode(code), threshold(thresh), enabled(en), lastUpdated(QDateTime::currentDateTime()) {}
+    bool operator==(const SubscriptionConfig& other) const {
+        return stockCode == other.stockCode;
+    }
+};
+class QSubscriptionManager : public QObject
+{
+    Q_OBJECT
+public:
+    static QSubscriptionManager* instance();
+    bool addSubscription(const QString& stockCode, double threshold);
+    bool removeSubscription(const QString& stockCode);
+    bool updateThreshold(const QString& stockCode, double threshold);
+    bool enableSubscription(const QString& stockCode, bool enabled = true);
+    QList<SubscriptionConfig> getAllSubscriptions() const;
+    double getThreshold(const QString& stockCode) const;
+    bool isSubscribed(const QString& stockCode) const;
+    bool isEnabled(const QString& stockCode) const;
+    void addSubscriptions(const QList<SubscriptionConfig>& subscriptions);
+    void removeSubscriptions(const QList<QString>& stockCodes);
+    void loadFromFile(const QString& filePath = "");
+    void saveToFile(const QString& filePath = "");
+    int getSubscriptionCount() const;
+    int getEnabledSubscriptionCount() const;
+signals:
+    void subscriptionAdded(const QString& stockCode, double threshold);
+    void subscriptionRemoved(const QString& stockCode);
+    void thresholdUpdated(const QString& stockCode, double threshold);
+    void subscriptionEnabledChanged(const QString& stockCode, bool enabled);
+    void subscriptionsChanged();
+private:
+    explicit QSubscriptionManager(QObject *parent = nullptr);
+    ~QSubscriptionManager();
+    QMap<QString, SubscriptionConfig> m_subscriptions;
+    QString m_configPath;
+    mutable QMutex m_mutex;
+    QString getDefaultConfigPath() const;
+};
+#endif