#include "stdafx.h"
#include <iostream>


class Visitor {
public:
    virtual void visitLogicInput() = 0;
    virtual void visitLogicGate() = 0;
    virtual ~Visitor() {
    };
};

class Component {
public:
    virtual bool operation() = 0;
    virtual void accept(Visitor *v) = 0;
    virtual ~Component() {
    };
};


class LogicInput : public Visitor {
    bool val;
public:
    virtual void visitLogicInput() override {

    }
    virtual void visitLogicGate() override {

    }
    virtual ~LogicInput() {

    }

};



enum class LogicOperation {
    AND, OR, XOR
};

class LogicGate : public Component {
private:
    Component * a;
    Component* b;
    LogicOperation logicalOperation;
public:
    LogicGate(Component* A, Component* B, LogicOperation logicalOperation) {
        a = A;
        b = B;
        logicalOperation = logicalOperation;
    }
    bool operation() override {
        switch (logicalOperation) {
        case LogicOperation::AND:
            return (a->operation() && b->operation());
            break;
        case LogicOperation::OR:
            return (a->operation() || b->operation());
            break;
        case LogicOperation::XOR:
            return ((a->operation() || b->operation()) || (a->operation() && b->operation()));
            break;
        }
        return false;
    }

};

int main()
{
    LogicInput a;
    LogicInput b;

    LogicGate and_1(&a, &b, LogicOperation::AND);
    LogicGate or_1(&and_1, &b, LogicOperation::OR);
    LogicGate xor_1(&and_1, &or_1, LogicOperation::XOR);

    std::cout << "and: " << and_1.operation() << std::endl;
    std::cout << "or: " << or_1.operation() << std::endl;
    std::cout << "xor: " << xor_1.operation() << std::endl;
    std::cin.get();
    return 0;

}