package polynomial;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 * A skeleton class for representing Polynomials
 *
 * @author Sjaak Smetsers
 * @date 10-03-2015
 */
public class Polynomial {

    /**
     * A polynomial is a sequence of terms here kept in an List
     */
    List<Term> terms;

    /**
     * A constructor for creating the zero Polynomial zero is presented as an
     * empty list of terms and not as a single term with 0 as a coefficient
     */
    public Polynomial() {
        terms = new ArrayList<>();
    }

    /**
     * A Constructor creating a polynomial from the argument string.
     *
     * @param s a String representing a list of terms which is converted to a
     * scanner and passed to scanTerm for reading each individual term
     */
    public Polynomial( String s ) {
        terms = new ArrayList<>();
        Scanner scan = new Scanner(s);

        for (Term t = Term.scanTerm(scan); t != null; t = Term.scanTerm(scan)) {
            terms.add(t);
        }
    }

    /**
     * The copy constructor for making a deep copy
     *
     * @param p the copied polynomial
     *
     */
    public Polynomial( Polynomial p ) {
        terms = new ArrayList<>(p.terms.size());
        for (Term t : p.terms) {
            terms.add(new Term(t));
        }
    }
    
    /**
     * A straightforward conversion of a Polynomial into a string based on the
     * toString for terms
     *
     * @return a readable string representation of this
     */
    @Override
    public String toString() {
        return null;
    }

    public void plus(Polynomial b) {
    }


    public void minus(Polynomial b) {
    }


    public void times(Polynomial b) {
    }

    public void divide(Polynomial b) {
    }

    @Override
    public boolean equals(Object other_poly) {
        return false;
    }

}