#ifndef QDATAQUALITY_H
#define QDATAQUALITY_H

#include <QObject>
#include <QMap>
#include <QSet>
#include <QDateTime>
#include <QMutex>
#include <QTimer>
#include "BZStruct.h"

// 数据质量指标
struct DataQualityMetrics {
    double completeness = 100.0;     // 完整性百分比
    double timeliness = 100.0;       // 及时性百分比
    double accuracy = 100.0;         // 准确性百分比
    double consistency = 100.0;      // 一致性百分比
    double availability = 100.0;     // 可用性百分比
    
    int totalPackets = 0;
    int validPackets = 0;
    int delayedPackets = 0;
    int corruptedPackets = 0;
    int missingPackets = 0;
    
    QDateTime lastUpdate;
    
    void updateMetrics(int total, int valid, int delayed, int corrupted, int missing) {
        totalPackets = total;
        validPackets = valid;
        delayedPackets = delayed;
        corruptedPackets = corrupted;
        missingPackets = missing;
        
        completeness = total > 0 ? (static_cast<double>(valid) / total) * 100.0 : 100.0;
        timeliness = total > 0 ? (static_cast<double>(total - delayed) / total) * 100.0 : 100.0;
        accuracy = total > 0 ? (static_cast<double>(total - corrupted) / total) * 100.0 : 100.0;
        consistency = total > 0 ? (static_cast<double>(valid) / total) * 100.0 : 100.0;
        availability = total > 0 ? (static_cast<double>(total - missing) / total) * 100.0 : 100.0;
        
        lastUpdate = QDateTime::currentDateTime();
    }
};

// 异常类型
enum class ExceptionType {
    DataDelay,          // 数据延迟
    DataCorruption,     // 数据损坏
    DataMissing,        // 数据缺失
    ConnectionLoss,     // 连接丢失
    MemoryOverflow,     // 内存溢出
    ProcessingTimeout,  // 处理超时
    SystemError         // 系统错误
};

// 异常记录
struct ExceptionRecord {
    ExceptionType type;
    QString description;
    QString stockCode;
    QDateTime timestamp;
    int severity; // 1-10, 10为最严重
    bool resolved = false;
    QDateTime resolvedTime;
    
    ExceptionRecord(ExceptionType t, const QString& desc, const QString& code = "", int sev = 5)
        : type(t), description(desc), stockCode(code), timestamp(QDateTime::currentDateTime()), severity(sev) {}
};

// 告警配置
struct AlertConfig {
    double completenessThreshold = 95.0;    // 完整性阈值
    double timelinessThreshold = 98.0;      // 及时性阈值  
    double accuracyThreshold = 99.0;        // 准确性阈值
    int maxConsecutiveErrors = 5;           // 最大连续错误数
    int maxExceptionsPerMinute = 10;        // 每分钟最大异常数
    bool enableEmailAlerts = false;
    bool enableSoundAlerts = true;
    bool enableLogAlerts = true;
    
    QString emailRecipient;
    QString smtpServer;
};

class QDataQuality : public QObject
{
    Q_OBJECT
public:
    static QDataQuality* instance();
    
    // 配置管理
    void setAlertConfig(const AlertConfig& config);
    AlertConfig getAlertConfig() const;
    
    // 数据质量检查
    bool validateOrderBookData(const Qot_UpdateOrderBook::Response& data);
    bool validateQuoteData(const Qot_UpdateBasicQot::Response& data);
    bool validateTickData(const Qot_UpdateTicker::Response& data);
    bool validateKLData(const Qot_UpdateKL::Response& data);
    
    // 异常检测
    void checkDataDelay(const QString& stockCode, const QDateTime& dataTime);
    void checkDataConsistency(const QString& stockCode, DataPacketType type);
    void checkSystemHealth();
    
    // 异常管理
    void reportException(ExceptionType type, const QString& description, const QString& stockCode = "", int severity = 5);
    QList<ExceptionRecord> getActiveExceptions() const;
    QList<ExceptionRecord> getExceptionHistory(int hours = 24) const;
    void resolveException(const QString& exceptionId);
    void resolveAllExceptions();
    
    // 质量指标
    DataQualityMetrics getOverallMetrics() const;
    DataQualityMetrics getMetricsForStock(const QString& stockCode) const;
    DataQualityMetrics getMetricsForType(DataPacketType type) const;
    
    // 告警控制
    void enableAlerts(bool enabled);
    bool areAlertsEnabled() const;
    void setAlertThresholds(double completeness, double timeliness, double accuracy);

signals:
    void dataQualityAlert(const QString& message, int severity);
    void exceptionDetected(const ExceptionRecord& exception);
    void exceptionResolved(const ExceptionRecord& exception);
    void qualityMetricsUpdated(const DataQualityMetrics& metrics);
    void systemHealthChanged(bool healthy);

private:
    explicit QDataQuality(QObject *parent = nullptr);
    ~QDataQuality();
    
    void initializeValidationRules();
    bool checkBusinessRules(const Qot_UpdateOrderBook::Response& data);
    bool checkNumericalBounds(const Qot_UpdateOrderBook::Response& data);
    bool checkTemporalConsistency(const QString& stockCode, DataPacketType type);
    
    void updateMetrics();
    void checkAlertConditions();
    void sendAlert(const QString& message, int severity);
    
    // 数据存储
    mutable QMutex m_mutex;
    QMap<QString, DataQualityMetrics> m_stockMetrics;
    QMap<DataPacketType, DataQualityMetrics> m_typeMetrics;
    DataQualityMetrics m_overallMetrics;
    
    // 异常管理
    QMap<QString, ExceptionRecord> m_activeExceptions;
    QList<ExceptionRecord> m_exceptionHistory;
    
    // 配置
    AlertConfig m_alertConfig;
    bool m_alertsEnabled = true;
    
    // 统计
    QMap<QString, QDateTime> m_lastDataTime;
    QMap<QString, int> m_consecutiveErrors;
    QMap<QString, QList<QDateTime>> m_exceptionTimestamps;
    
    // 定时器
    QTimer* m_metricsTimer;
    QTimer* m_healthCheckTimer;
};

#endif // QDATAQUALITY_H