#ifndef POWERENTITY_H
#define POWERENTITY_H
/****************************
 * 电力实体类，实现拓扑层级的建立 grid-zone-station-diagram
 * *************************/
#include <QString>
#include <QList>
#include "global.h"

class PowerTerminal;

// 所有实体的基类（组合模式核心）
class PowerEntity :public QObject{
    Q_OBJECT
public:
    PowerEntity(EntityType type, const QString& id, const QString& name)
        : m_type(type), m_id(id), m_name(name) {}

    virtual ~PowerEntity() {
        //qDeleteAll(m_children);
    }

    // 添加/删除子元素
    void addChild(PowerEntity* child) {
        if (child == this || getAllDescendants().contains(this)) {
            qCritical() << "Detected cyclic parent-child relationship!";
            return;
        }
        if (child && !m_children.contains(child)) {
            m_children.append(child);
            child->m_parent = this;
        }
    }

    void removeChild(PowerEntity* child) {
        if (child && m_children.removeOne(child)) {
            child->m_parent = nullptr;
        }
    }

    // 获取属性
    EntityType type() const { return m_type; }
    QString id() const { return m_id; }
    QString name() const { return m_name; }
    QList<PowerEntity*> children() const { return m_children; }
    PowerEntity* parent() const { return m_parent; }

    // 递归查找
    QList<PowerEntity*> getAllDescendants() const {
        QList<PowerEntity*> descendants;
        for (PowerEntity* child : m_children) {
            descendants.append(child);
            descendants.append(child->getAllDescendants());
        }
        return descendants;
    }

    virtual QJsonObject toJson() const;
public:
    // 接线点管理
    void addTerminal(PowerTerminal* terminal);
    void removeTerminal(const QString& terminalId);
    QList<PowerTerminal*> terminals() const { return m_terminals; }
    PowerTerminal* findTerminal(const QString& terminalId) const;
signals:
    void terminalAdded(PowerTerminal* terminal);
    void terminalRemoved(const QString& terminalId);
protected:
    QList<PowerTerminal*> m_terminals;
private:
    EntityType m_type;
    QString m_id;       // 唯一标识符（可用UUID生成）
    QString m_name;
    PowerEntity* m_parent = nullptr;
    QList<PowerEntity*> m_children;
};

// 组态图特殊属性（继承自PowerEntity）
class ConfigurationDiagram : public PowerEntity {
public:
    ConfigurationDiagram(const QString& id, const QString& name)
        : PowerEntity(EntityType::ConfigurationDiagram, id, name) {}

    // 可扩展图特有属性（如版本、创建时间等）
};

//电网区域划分 grid-zone-station
class PowerDivision : public PowerEntity {
public:
    PowerDivision(EntityType type,const QString& id, const QString& name)
        : PowerEntity(type, id, name) {}
};

//电力元件(拓扑)
class PowerComponent : public PowerEntity {
public:
    PowerComponent(EntityType type,const QString& id, const QString& name)
        : PowerEntity(type, id, name) {}
};
#endif