/*
	订单处理类
	- 维护一个线程池，用于处理接收到的订单数据
	- 检测大单
		单笔订单股票数量大于指定阈值，会被认定为大单
*/
#ifndef QORDERPROCESSOR_H
#define QORDERPROCESSOR_H

#include <QObject>
#include <QVector>
#include <QThreadPool>
#include <QMutex>
#include <QCache>
#include <QtConcurrent\QtConcurrent>
#include <algorithm>
#include <functional>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonDocument>
#include "BZStruct.h"
#include "qeventbus.h"
#include "ObjectPool.h"

#include "tool.h"
#include "..\Sqbase\OrderBookParser.h"

class QOrderProcessor : public QObject
{
	Q_OBJECT
public:
	explicit QOrderProcessor(QObject *parent = nullptr);
	~QOrderProcessor();

	void setProcessingEnabled(bool enabled);
	void processOrderBook(const Qot_UpdateOrderBook::Response &stRsp);

	// JSON保存线程开关
	void setJsonSaveEnabled(bool enabled);
	bool isJsonSaveEnabled() const { return m_jsonSaveEnabled; }

	//void batchProcess(const QVector<QByteArray>& jsonDataList);
	void setreplyCodeQuantity(QMap<QString, float> CodeQuantity)
	{
		m_replyCodeQuantity = CodeQuantity;
	}

	// 性能监控接口
	size_t getCacheHitRate() const { return m_cacheHits; }
	size_t getCacheMissRate() const { return m_cacheMisses; }
	double getCacheHitRatio() const { 
		return (m_cacheHits + m_cacheMisses) > 0 ? 
			static_cast<double>(m_cacheHits) / (m_cacheHits + m_cacheMisses) : 0.0; 
	}

public:
	OrderBookParser parser;

signals:
	// 基础信号
	void maxOrderReady(BigOrderInfo bigOrderInfo);
	
	// 状态信号
	void processingStarted(const QString& code);
	void processingFinished(const QString& code);
	void errorOccurred(const QString& code, const QString& error);

private:
	QVector<BigOrderInfo> findExtremeOrders(const OrderBookData& data) const;
	OrderBookEntry findMaxVolumeItemEx(const QVector<OrderBookEntry>& items, double volumeRatio) const;
	QVector<BigOrderInfo>  findMaxVolumeItem(const OrderBookData& data) const;
	OrderBookEntry findMinPriceItem(const QVector<OrderBookEntry>& items) const;

	// 缓存相关方法
	bool getCachedResult(const QString& cacheKey, QVector<BigOrderInfo>& result) const;
	void cacheResult(const QString& cacheKey, const QVector<BigOrderInfo>& result) const;

	double sumQuantity(const QVector<OrderBookEntry>& items) const;

	void internalProcess(const OrderBookData& orderData);
	
	// JSON保存相关方法
	void saveOrderDataAsJson(const OrderBookData& orderData);
	QJsonObject orderBookDataToJson(const OrderBookData& data) const;
	
	QThreadPool m_threadPool;
	mutable QMutex m_dataMutex;
	bool m_enabled = true;
	bool m_jsonSaveEnabled = false; // JSON保存开关
	QSet<QString> m_processingCodes;

	QMap<QString, float> m_replyCodeQuantity;

	// JSON保存线程池
	QThreadPool m_jsonSaveThreadPool;

	// 性能优化成员 - 手动缓存实现
	mutable QMap<QString, QVector<BigOrderInfo>> m_orderCache;
	mutable QList<QString> m_cacheKeys;
	mutable size_t m_cacheHits = 0;
	mutable size_t m_cacheMisses = 0;
	mutable QMutex m_cacheMutex;
	size_t m_cacheMaxSize = 200;
};

#endif // QORDERPROCESSOR_H