#pragma once

#include "dtcore/inc/dtscriptdescriptor.h"
#include "dtcore/inc/dtscriptstatementcompound.h"

namespace dt
{

    class ScriptParserState
    {
    public:
        ScriptParserState(const ScriptDescriptor& script, ScriptStatementCompound* root);

        ScriptStatementCompound* GetRoot() const { return m_Root; }

        void PushBlock(ScriptStatementCompound* stm) { m_CompoundStack.PushBack(stm); }
        bool PopBlock();

        ScriptStatementCompound* GetParentStatement() const { return m_CompoundStack.Back(); }
        SizeT GetCompoundStackSize() const { return m_CompoundStack.Size(); }
        void PushBack(ScriptStatement* stm);
        void PushAsRoot(ScriptStatementCompound* stm);
        ScriptStatement* GetLast() const { return m_Last; }

        void SetCurrentLineById(int id);
        const ScriptLines& GetLines() const { return m_Script.GetLines(); }
        const ScriptLine& GetCurrentLine() const { return m_Script.GetLines()[m_LineIndex]; }
        bool HasNextLine() const { return m_LineIndex < m_Script.GetLines().Size() - 1; }
        const ScriptLine& GetNextLine() { return m_Script.GetLines()[++m_LineIndex]; }

    private:
        ScriptDescriptor m_Script;
        SizeT m_LineIndex;
        ScriptStatementCompound* m_Root;
        Vector<ScriptStatementCompound*> m_CompoundStack;
        ScriptStatement* m_Last;
    };

}