#ifndef TOPOLOGYMANAGER_H
#define TOPOLOGYMANAGER_H
/****************************
 * 拓扑关系管理类
 * *************************/
#include <QObject>
#include <QList>
#include "powerConnection.h"
#include "powerTerminal.h"
#include "global.h"

class PowerEntity;

class TopologyManager : public QObject {
    Q_OBJECT
public:
    static TopologyManager& instance();

    // 实体管理
    PowerEntity* createEntity(EntityType type,const QString& uuid,const QString& name);
    PowerEntity* findEntity(const QString& id) const;
    bool deleteEntity(const QString& id);

    // 序列化
    QJsonObject serialize() const;
    void deserialize(const QJsonObject& json);

    // 连接管理
    PowerConnection* createConnection(const QString& uuid,const QString& fromId, const QString& toId);
    QList<PowerConnection*> getConnectionsForElement(const QString& elementId) const;
    void removeConnection(const QString& connId);

    // 连接查询接口
    QList<PowerConnection*> connectionsFrom(const QString& elementId) const;
    QList<PowerConnection*> connectionsTo(const QString& elementId) const;
    QList<PowerConnection*> getConnectionsFor(const QString& entityId) const;

    void saveToDB(const QString& path);
    void loadFromDB(const QString& path);

    PowerEntity* getEntity(const QString& id) const;
    QList<PowerEntity*> findEntitiesByName(const QString& name) const;

public:
    // 接线点管理
    PowerTerminal* createTerminal(const QString& parentEntityId,
                             TerminalType type,
                             const QString& name,
                             const QPointF& relPos = QPointF());
    bool deleteTerminal(const QString& terminalId);
    PowerTerminal* getTerminal(const QString& terminalId) const;
    QList<PowerTerminal*> getTerminalsForEntity(const QString& entityId) const;
signals:
    void entityCreated(const QString&);
    void entityDeleted(const QString&);
    void connectionCreated(const QString&);
    void connectionRemoved(const QString&);

private:
    explicit TopologyManager(QObject* parent = nullptr);
    ~TopologyManager();
    void clearAllData();
    QHash<QString, PowerEntity*> m_entities;    // ID到实体映射
    QHash<QString, DiagramView*> m_views;       // 组态图视图存储

    // 连接存储
    QHash<QString,PowerConnection*> m_connections;
    QMultiHash<QString,PowerConnection*> m_connectionIndex; // 元素ID到连接的映射
private:
    QHash<QString, PowerTerminal*> m_allTerminals; // ID到接线点映射
    QHash<QString, QList<PowerTerminal*>> m_terminalsByEntity; // 实体ID到接线点列表
};

#endif