//	for assignment 4
//	add selection sort
//	pg 137
//	ADT - lists: array of items with variable length
//	read strings from a file and put them in the list; then output the strings
//

#include <iostream>
using namespace std;

const int MAX = 50;

class List
{
	int data[MAX];		// use string in hw 4.
	int length;		
public:
	List() { length = 0;	}
	int Length()		// could put const here but don't have to.
	{	return length;	}
	void Insert(int item)
	{	data[length] = item;
		length ++;		// transformer insert.
	}
	void Print() const
	{	for(int i=0; i<length; i++)
			cout << data[i] << " ";
		cout << "\n";
	}
	// sequential search pg 139. - primary search method
	bool IsPresent(int item) const
	{	bool found = false;
		for(int i=0; i<length && !found; i++)
			if(data[i] == item) found = true;
		return found;
	}
	void SelectionSort_R()
	{	int temp;
		int passCount;
		int maxIndex;
		for(passCount=0; passCount<length-1; passCount ++)
		{	maxIndex = passCount;
			for(int k=passCount+1; k<length; k++)
			{	if(data[maxIndex] < data[k])
				maxIndex = k;
			}
			temp = data[maxIndex];		// swap.
			data[maxIndex] = data[passCount];
			data[passCount] = temp;
		}
	}
	void SelectionSort() 
	{
		int temp, passCount, minIndex;
		for(passCount=0; passCount<length-1; passCount++)
		{	minIndex = passCount;
			for(int k=passCount+1; k<length; k++)
			{	if( data[minIndex] > data[k] )	minIndex = k;	}
			temp = data[minIndex];
			data[minIndex] = data[passCount];
			data[passCount] = temp;
		}
	}
	void Menu()
	{	char op;
	        cout << "       List Operations\n";
	        cout << "========================================\n";
	        cout << "I      Insert an item.\n";
	        cout << "A      Ascending order.\n";
	        cout << "Q      Quit.\n";
	        cout << "-----------------------------------------\n";
	        cout << "Your option is: ";
	        cin >> op;
	}


};

int main()
{
	List real;
	char op;
	int item;

	cout << "	List Operations\n";
	cout << "========================================\n";
	cout << "I	Insert an item.\n";
	cout << "A	Ascending order.\n";
	cout << "Q	Quit.\n";
	cout << "-----------------------------------------\n";
	cout << "Your option is: ";
	cin >> op;	
	
	while(toupper(op) != 'Q')
	{
			
		if (toupper(op) == 'I')
		{	cout << "Input the item: ";
			cin >> item;
			real.Insert(item);
			cout << "The list is - ";
			real.Print();
		}
		else if(toupper(op) == 'A')
		{	real.SelectionSort();
			cout << "The list is - ";
			real.Print();
		}
	        cout << "       List Operations\n";
	        cout << "========================================\n";
	        cout << "I      Insert an item.\n";
	        cout << "A      Ascending order.\n";
	        cout << "Q      Quit.\n";
	        cout << "-----------------------------------------\n";
	        cout << "Your option is: ";
	        cin >> op;
	}

	return 0;
}