#pragma once

#ifndef FXSCHEMATICNODE_H
#define FXSCHEMATICNODE_H

// TnzQt includes
#include "fxtypes.h"

#include "schematicnode.h"

// Qt includes
#include <QGraphicsItem>
#include <QList>

//==============================================================

//    Forward declarations

class TFx;
class TOutputFx;
class TXsheetFx;
class TZeraryColumnFx;
class TPaletteColumnFx;
class TLevelColumnFx;
class TStageObjectId;

class FxSchematicNode;
class FxSchematicScene;
class FxSchematicDock;
class FxSchematicColumnNode;
class FxSchematicPaletteNode;
class FxSchematicNormalFxNode;
class FxSchematicXSheetNode;
class FxSchematicOutputNode;

//*****************************************************
//    FxColumnPainter
//*****************************************************

class FxColumnPainter final : public QObject, public QGraphicsItem {
  Q_OBJECT
  Q_INTERFACES(QGraphicsItem)

  FxSchematicColumnNode *m_parent;
  double m_width, m_height;
  QString m_name;
  int m_type;
  bool m_isReference = false;

public:
  FxColumnPainter(FxSchematicColumnNode *parent, double width, double height,
                  const QString &name);
  virtual ~FxColumnPainter();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  void setName(const QString &name) { m_name = name; }
  void setIsReference(bool ref = true) { m_isReference = ref; }

public slots:

  void onIconGenerated();

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
};

//*****************************************************
//    FxPalettePainter
//*****************************************************

class FxPalettePainter final : public QGraphicsItem, public QObject {
  FxSchematicPaletteNode *m_parent;
  double m_width, m_height;
  QString m_name;

public:
  FxPalettePainter(FxSchematicPaletteNode *parent, double width, double height,
                   const QString &name);
  ~FxPalettePainter();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  void setName(const QString &name) { m_name = name; }

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
};

//*****************************************************
//    FxPainter
//*****************************************************

class FxPainter final : public QObject, public QGraphicsItem {
  Q_OBJECT
  Q_INTERFACES(QGraphicsItem)

  FxSchematicNode *m_parent;
  double m_width, m_height;
  QString m_name, m_label;
  eFxType m_type;

  // to obtain the fx icons for zoom out view of the schematic
  std::string m_fxType;

  void paint_small(QPainter *painter);

public:
  FxPainter(FxSchematicNode *parent, double width, double height,
            const QString &name, eFxType type, std::string fxType);
  ~FxPainter();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  void setName(const QString &name) { m_name = name; }

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
};

//*****************************************************
//    FxXSheetPainter
//*****************************************************

class FxXSheetPainter final : public QObject, public QGraphicsItem {
  Q_OBJECT
  Q_INTERFACES(QGraphicsItem)

  double m_width, m_height;

  FxSchematicXSheetNode *m_parent;

public:
  FxXSheetPainter(FxSchematicXSheetNode *parent, double width, double height);
  ~FxXSheetPainter();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
};

//*****************************************************
//    FxOutputPainter
//*****************************************************

class FxOutputPainter final : public QObject, public QGraphicsItem {
  Q_OBJECT
  Q_INTERFACES(QGraphicsItem)

  double m_width, m_height;
  bool m_isActive;
  FxSchematicOutputNode *m_parent;

public:
  FxOutputPainter(FxSchematicOutputNode *parent, double width, double height);
  ~FxOutputPainter();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
};

//*****************************************************
//    FxSchematicLink
//*****************************************************

class FxSchematicLink final : public SchematicLink {
  Q_OBJECT

public:
  FxSchematicLink(QGraphicsItem *parent, QGraphicsScene *scene);
  ~FxSchematicLink();

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
};

//*****************************************************
//    FxSchematicPort
//*****************************************************

class FxSchematicPort final : public SchematicPort {
  TFx *m_ownerFx;
  FxSchematicPort *m_currentTargetPort;
  QList<SchematicLink *> m_hiddenLinks;
  QList<SchematicLink *> m_ghostLinks;

public:
  FxSchematicPort(FxSchematicDock *parent, int type);
  ~FxSchematicPort();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  bool linkTo(SchematicPort *port, bool checkOnly = false) override;
  FxSchematicDock *getDock() const;
  SchematicLink *makeLink(SchematicPort *port) override;

protected:
  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
  void mouseMoveEvent(QGraphicsSceneMouseEvent *me) override;
  void mouseReleaseEvent(QGraphicsSceneMouseEvent *me) override;
  TFx *getOwnerFx() const;

private:
  void linkEffects(TFx *inputFx, TFx *fx, int inputId);
  SchematicPort *searchPort(const QPointF &scenePos) override;

  //! Handles hiding of existing link and showing of ghost links for snapping
  //! after creation link only for fx having
  //! dynamic ports.
  //! If \b secondIndex is -1 consider the last port in the groupedPorts of the
  //! node.
  void handleSnappedLinksOnDynamicPortFx(
      const std::vector<TFxPort *> &groupedPorts, int targetIndex,
      int startIndex = -1);

  void resetSnappedLinksOnDynamicPortFx();

  void hideSnappedLinks(SchematicPort *) override;
  void showSnappedLinks(SchematicPort *) override;
};

//*****************************************************
//    FxSchematicDock
//*****************************************************

class FxSchematicDock final : public QGraphicsItem, public QObject {
  QString m_name;
  double m_width;
  FxSchematicPort *m_port;

public:
  FxSchematicDock(FxSchematicNode *parent, const QString &string, double width,
                  eFxSchematicPortType type);
  ~FxSchematicDock();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  FxSchematicNode *getNode();
  FxSchematicPort *getPort() { return m_port; }
};

//*****************************************************
//    FxSchematicNode
//*****************************************************

class FxSchematicNode : public SchematicNode {
  Q_OBJECT

protected:
  enum eDropActionMode { eShift, eNone };

protected:
  QString m_name;  //!< Node's name (displayed on top, editable)
  TFxP
      m_fx;  //!< The node's associated fx (could be a wrapper to the actual fx)
  TFxP m_actualFx;  //!< The actual node's associated fx

  FxSchematicNode *m_linkedNode;
  QList<FxSchematicDock *> m_inDocks;
  FxSchematicDock *m_outDock;
  FxSchematicDock *m_linkDock;
  SchematicName *m_nameItem;
  eFxType m_type;
  bool m_isCurrentFxLinked;

  bool m_isNormalIconView;

protected:
  //! If the fx has dynamic port groups, ensures that each group always has at
  //! least one unlinked port
  //! that users can attach to, while keeping the number of unlinked ports to
  //! the minimum allowed by the
  //! group's specifics.
  virtual void checkDynamicInputPortSize() const;

  //! Adds a dynamic group port to the associated fx.
  void addDynamicInputPort(int groupIndex) const;

  //! Removes the port with specified name from the associated fx. Returns false
  //! (ie operation refused)
  //! if the specified port does not exists, is connected, or is not in a
  //! dynamic port group.
  bool removeDynamicInputPort(const std::string &name) const;

  //! Moves the port group links to the front ports.
  void shiftLinks() const;

  void updateOutputDockToolTips(const QString &name);

public:
  FxSchematicNode(FxSchematicScene *parent, TFx *fx, qreal width, qreal height,
                  eFxType type);

  void setWidth(const qreal &width) { m_width = width; }
  void setHeight(const qreal &height) { m_height = height; }
  void setSchematicNodePos(const QPointF &pos) const override;

  TFx *getFx() const { return m_fx.getPointer(); }
  bool isA(eFxType type) { return m_type == type; }

  int getInputPortCount() { return m_inDocks.size(); }
  int getInputDockId(FxSchematicDock *dock);

  FxSchematicPort *getInputPort(int i) {
    return m_inDocks[i] ? m_inDocks[i]->getPort() : 0;
  }
  FxSchematicPort *getOutputPort() {
    return m_outDock ? m_outDock->getPort() : 0;
  }
  FxSchematicPort *getLinkPort() {
    return m_linkDock ? m_linkDock->getPort() : 0;
  }

  bool isNameEditing() { return m_nameItem->isVisible(); }
  void onClicked() override;
  bool isCurrentFxLinked(SchematicNode *comingNode) {
    return m_isCurrentFxLinked;
  }
  void setIsCurrentFxLinked(bool value, FxSchematicNode *comingNode);
  void setPosition(const QPointF &newPos) override;

  void updatePortsPosition();

  virtual bool isOpened() { return true; }
  virtual bool isEnabled() const;
  virtual bool isCached() const;
  virtual void resize(bool maximizeNode) {}

  void toggleNormalIconView() { m_isNormalIconView = !m_isNormalIconView; }
  bool isNormalIconView() { return m_isNormalIconView; }
signals:

  void switchCurrentFx(TFx *fx);
  void currentColumnChanged(int index);

  void fxNodeDoubleClicked();
};

//*****************************************************
//    FxSchematicOutputNode
//*****************************************************

class FxSchematicOutputNode final : public FxSchematicNode {
  FxOutputPainter *m_outputPainter;

public:
  FxSchematicOutputNode(FxSchematicScene *scene, TOutputFx *fx);
  ~FxSchematicOutputNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;
};

//*****************************************************
//    FxSchematicXSheetNode
//*****************************************************

class FxSchematicXSheetNode final : public FxSchematicNode {
  FxXSheetPainter *m_xsheetPainter;

public:
  FxSchematicXSheetNode(FxSchematicScene *scene, TXsheetFx *fx);
  ~FxSchematicXSheetNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;
};

//*****************************************************
//    FxSchematicNormalFxNode
//*****************************************************

class FxSchematicNormalFxNode final : public FxSchematicNode {
  Q_OBJECT

  FxPainter *m_painter;
  SchematicToggle *m_renderToggle;

public:
  FxSchematicNormalFxNode(FxSchematicScene *scene, TFx *fx);
  ~FxSchematicNormalFxNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

  void resize(bool maximizeNode) override;

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;

protected slots:

  void onNameChanged();
  void onRenderToggleClicked(bool);
};

//*****************************************************
//    FxSchematicZeraryNode
//*****************************************************

class FxSchematicZeraryNode final : public FxSchematicNode {
  Q_OBJECT

  FxPainter *m_painter;
  int m_columnIndex;
  SchematicToggle *m_renderToggle, *m_cameraStandToggle;

public:
  FxSchematicZeraryNode(FxSchematicScene *scene, TZeraryColumnFx *fx);
  ~FxSchematicZeraryNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

  void resize(bool maximizeNode) override;

  int getColumnIndex() { return m_columnIndex; }
  bool isCached() const override;

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;

protected slots:

  void onRenderToggleClicked(bool);
  void onCameraStandToggleClicked(int);
  void onNameChanged();
};

//*****************************************************
//    FxSchematicColumnNode
//*****************************************************

class FxSchematicColumnNode final : public FxSchematicNode {
  Q_OBJECT

  SchematicThumbnailToggle *m_resizeItem;
  SchematicToggle *m_renderToggle, *m_cameraStandToggle;
  FxColumnPainter *m_columnPainter;
  int m_columnIndex;
  bool m_isOpened;

public:
  FxSchematicColumnNode(FxSchematicScene *scene, TLevelColumnFx *fx);
  ~FxSchematicColumnNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  QPixmap getPixmap();
  bool isOpened() override { return m_isOpened; }

  void getLevelTypeAndName(int &, QString &);

  void resize(bool maximizeNode) override;
  int getColumnIndex() { return m_columnIndex; }

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;

private:
  void renameObject(const TStageObjectId &id, std::string name);

protected slots:

  void onRenderToggleClicked(bool);
  void onCameraStandToggleClicked(int);
  void onChangedSize(bool);
  void onNameChanged();
};

//*****************************************************
//    FxSchematicPaletteNode
//*****************************************************

class FxSchematicPaletteNode final : public FxSchematicNode {
  Q_OBJECT

  SchematicToggle *m_renderToggle;
  FxPalettePainter *m_palettePainter;
  int m_columnIndex;

public:
  FxSchematicPaletteNode(FxSchematicScene *scene, TPaletteColumnFx *fx);
  ~FxSchematicPaletteNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;
  QPixmap getPixmap();
  bool isOpened() override { return false; }
  int getColumnIndex() { return m_columnIndex; }

  QString getPaletteName();

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;

protected slots:

  void onRenderToggleClicked(bool);
  void onNameChanged();

private:
  void renameObject(const TStageObjectId &id, std::string name);
};

//*****************************************************
//    FxGroupNode
//*****************************************************

class FxGroupNode final : public FxSchematicNode {
  Q_OBJECT

  QList<TFxP> m_groupedFxs;
  QList<TFxP> m_roots;
  int m_groupId;
  FxPainter *m_painter;
  SchematicToggle *m_renderToggle;
  bool m_isOpened;

public:
  FxGroupNode(FxSchematicScene *scene, const QList<TFxP> &groupedFx,
              const QList<TFxP> &roots, int groupId,
              const std::wstring &groupName);
  ~FxGroupNode();

  QRectF boundingRect() const override;
  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
             QWidget *widget = 0) override;

  FxSchematicPort *getOutputPort() const {
    return m_outDock ? m_outDock->getPort() : 0;
  }
  bool isNameEditing() const { return m_nameItem->isVisible(); }
  QList<TFxP> getRootFxs() const { return m_roots; }
  int getRootCount() { return m_roots.size(); }
  int getFxCount() const { return m_groupedFxs.size(); }
  TFx *getFx(int i) const {
    return 0 <= i && i < m_groupedFxs.size() ? m_groupedFxs[i].getPointer() : 0;
  }

  QList<TFxP> getGroupedFxs() const { return m_groupedFxs; }
  void updateFxsDagPosition(const TPointD &pos) const;
  bool isOpened() override { return m_isOpened; }
  void resize(bool maximized) override;
  bool contains(TFxP fx);
  // returns the number of ports that take the group in input... it consider
  // also the node xsheet
  int getOutputConnectionsCount() const;
  bool isEnabled() const override;
  bool isCached() const override;

protected:
  void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *me) override;
  QPointF computePos() const;

protected slots:

  void onNameChanged();
  void onRenderToggleClicked(bool);
};

#endif  // FXSCHEMATICNODE_H