#include <utility>

#ifndef PORYGONLANG_SCRIPTTYPE_HPP
#define PORYGONLANG_SCRIPTTYPE_HPP

#include <utility>
#include <vector>
#include <memory>
#include "Binder/BoundVariables/BoundVariableKey.hpp"

enum class TypeClass{
    Error,
    Nil,
    Number,
    Bool,
    String,
    Function,
    UserData,
    Table,
};

class ScriptType{
    TypeClass _class;
public:
    explicit ScriptType(TypeClass c){
        _class = c;
    }

    virtual ~ScriptType() = default;

    const TypeClass GetClass(){
        return _class;
    }

    virtual bool operator ==(ScriptType b){
        return _class == b._class;
    };

    virtual bool operator !=(ScriptType b){
        return ! (operator==(b));
    }
};

class NumericScriptType : public ScriptType{
    // Are we aware of whether this is a float or not?
    bool _awareOfFloat;
    // Is this value a float?
    bool _isFloat;
public:
    explicit NumericScriptType(bool floatAware, bool isFloat) : ScriptType(TypeClass::Number){
        _awareOfFloat = floatAware;
        _isFloat = isFloat;
    }

    bool IsAwareOfFloat(){
        return _awareOfFloat;
    }

    bool IsFloat(){
        return _isFloat;
    }
};

class FunctionScriptType : public ScriptType{
    std::shared_ptr<ScriptType> _returnType;
    std::vector<std::shared_ptr<ScriptType>> _parameterTypes;
    std::vector<std::shared_ptr<BoundVariableKey>> _parameterKeys;
public:
    FunctionScriptType(std::shared_ptr<ScriptType> returnType, std::vector<std::shared_ptr<ScriptType>> parameterTypes,
            std::vector<std::shared_ptr<BoundVariableKey>> parameterKeys)
    : ScriptType(TypeClass::Function){
        _returnType = std::move(returnType);
        _parameterTypes = std::move(parameterTypes);
        _parameterKeys = std::move(parameterKeys);
    }
    ScriptType* GetReturnType(){
        return _returnType.get();
    }

    std::vector<std::shared_ptr<ScriptType>> GetParameterTypes(){
        return _parameterTypes;
    }

    std::vector<std::shared_ptr<BoundVariableKey>> GetParameterKeys(){
        return _parameterKeys;
    }
};

#endif //PORYGONLANG_SCRIPTTYPE_HPP