// Node Class Test 01.cpp : Defines the entry point for the console application.
//

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


// node class
class Node {
    int amount;
public:
    std::string name;
    bool usable;
    Node();
    Node(std::string, int);
    std::vector<Node*> link;
    void checkUsability(); // will test to see if the node is available
    void connect(Node*);
};


// default (has no arguments)
Node::Node() {
    name = "this node doesn't have a name";
    amount = 0;
    usable = false;
}


// actual constructor
Node::Node (std::string _name, int _amount) {
    name = _name;
    amount = _amount;
    usable = false;
}


void Node::checkUsability() {
    usable = true;
    // add: check dependencies and see if this is actually usable

    std::cout << "checking requirements for " << name << "\n";

    // iterate over all the vector's elements

    bool result = true;
    for (std::vector<Node*>::iterator i = link.begin(); i != link.end(); ++i) {
        // check each
        if ((*i)->amount > 0) { // it's ok
            std::cout << (*i)->amount << " " << (*i)->name << " available - ok so far\n";
        }
        else { // if there are no available resources of this type
            std::cout << "0 " << (*i)->name << " available\n";
            result = false;
        }
    }
    usable = result;
}


void Node::connect(Node* target) {
    // add this new node as a thing we're dependent on
    link.push_back(target);
}



// main

using namespace std;

int main()
{

    cout << "class creation test\n";

    // create a single node


    Node* dog = new Node("dog", 1);

    cout << "class created (usable should be false)\n";



    // make a second node

    Node* hug = new Node("hug", 1);
    // try connecting two nodes
    dog->connect(hug); // hug is required for dog to be usable
    dog->checkUsability();

    // test usability

    cout << dog->name << " is usable: " << dog->usable;

    return 0;
}