//============================================================================
// Copyright 2017 ECMWF.
// This software is licensed under the terms of the Apache Licence version 2.0
// which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
// In applying this licence, ECMWF does not waive the privileges and immunities
// granted to it by virtue of its status as an intergovernmental organisation
// nor does it submit to any jurisdiction.
//
//============================================================================

#ifndef VTRIGGERATTR_HPP
#define VTRIGGERATTR_HPP

#include "VAttribute.hpp"
#include "VAttributeType.hpp"

#include <QStringList>
#include <vector>

class AttributeFilter;
class VAttributeType;
class VNode;

class Expression;

class VTriggerAttrType : public VAttributeType
{
public:
    explicit VTriggerAttrType();
    QString toolTip(QStringList d) const override;
    QString definition(QStringList d) const override;
    void encodeTrigger(Expression*,QStringList&) const;
    void encodeComplete(Expression*,QStringList&) const;
    void encode_empty(QStringList& data) const;

private:
    enum DataIndex {TypeIndex=0,CompleteIndex=1,ExprIndex=2};
};

class VTriggerAttr : public VAttribute
{

public:
    VTriggerAttr(VNode *parent,Expression*, int index);

    VAttributeType* type() const override;
    QStringList data(bool firstLine) const override;
    std::string strName() const override;
    std::string ast_str() const;

    static void scan(VNode* vnode,std::vector<VAttribute*>& vec);
    static void expressions(const VNode* vnode,std::string& trigger, std::string& complete);
};

#endif // VTRIGGERATTR_HPP

