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cleaned_source_code/core/TradingSystem.h

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+#ifndef TRADING_SYSTEM_H
+#define TRADING_SYSTEM_H
+#include <QObject>
+#include <QTimer>
+#include <QMutex>
+#include <QMap>
+#include <QList>
+#include "../common_structures/TradingStructures.h"
+class DataBuffer;
+class DataQualityValidator;
+class OrderProcessor;
+class BigOrderManager;
+class OrderBookParser;
+class FaultToleranceManager;
+class SubscriptionManager;
+class ConfigurationManager;
+class LogManager;
+class EventBus;
+class TradingSystem : public QObject
+{
+    Q_OBJECT
+public:
+    static TradingSystem* instance();
+    bool initialize(const Trading::SystemConfig& config = Trading::SystemConfig());
+    void shutdown();
+    bool isInitialized() const { return m_initialized; }
+    DataBuffer* dataBuffer() const;
+    DataQualityValidator* dataQuality() const;
+    OrderProcessor* orderProcessor() const;
+    BigOrderManager* bigOrderManager() const;
+    OrderBookParser* orderBookParser() const;
+    FaultToleranceManager* faultTolerance() const;
+    SubscriptionManager* subscriptionManager() const;
+    ConfigurationManager* configManager() const;
+    LogManager* logManager() const;
+    EventBus* eventBus() const;
+    void start();
+    void stop();
+    void pause();
+    void resume();
+    bool isRunning() const { return m_running; }
+    bool isPaused() const { return m_paused; }
+    Trading::SystemConfig getSystemConfig() const;
+    Trading::PerformanceMetrics getPerformanceMetrics() const;
+    QString getSystemStatus() const;
+    QMap<QString, QVariant> getSystemStats() const;
+    void setDataFlowEnabled(bool enabled);
+    bool isDataFlowEnabled() const { return m_dataFlowEnabled; }
+    QString getLastError() const;
+    void clearErrors();
+signals:
+    void systemInitialized();
+    void systemStarted();
+    void systemStopped();
+    void systemPaused();
+    void systemResumed();
+    void systemError(const QString& error);
+    void systemStatusChanged(const QString& status);
+    void performanceMetricsUpdated(const Trading::PerformanceMetrics& metrics);
+private:
+    explicit TradingSystem(QObject *parent = nullptr);
+    ~TradingSystem();
+    void initializeComponents();
+    void shutdownComponents();
+    void updatePerformanceMetrics();
+    void handleComponentError(const QString& component, const QString& error);
+    void validateSystemState();
+    bool m_initialized = false;
+    bool m_running = false;
+    bool m_paused = false;
+    bool m_dataFlowEnabled = true;
+    Trading::SystemConfig m_systemConfig;
+    Trading::PerformanceMetrics m_performanceMetrics;
+    DataBuffer* m_dataBuffer = nullptr;
+    DataQualityValidator* m_dataQuality = nullptr;
+    OrderProcessor* m_orderProcessor = nullptr;
+    BigOrderManager* m_bigOrderManager = nullptr;
+    OrderBookParser* m_orderBookParser = nullptr;
+    FaultToleranceManager* m_faultTolerance = nullptr;
+    SubscriptionManager* m_subscriptionManager = nullptr;
+    ConfigurationManager* m_configManager = nullptr;
+    LogManager* m_logManager = nullptr;
+    EventBus* m_eventBus = nullptr;
+    QTimer* m_monitoringTimer;
+    QTimer* m_metricsUpdateTimer;
+    QStringList m_errorLog;
+    mutable QMutex m_mutex;
+};
+#endif