/*
* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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*    2. Redistributions in binary form must reproduce the above copyright notice, this list
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package mage.abilities.mana;

import java.util.ArrayList;
import java.util.List;
import mage.Mana;
import mage.game.Game;

/**
 *
 * @author BetaSteward_at_googlemail.com
 *
 * this class is used to build a list of all possible mana combinations
 * it can be used to find all the ways to pay a mana cost
 * or all the different mana combinations available to a player
 *
 */
public class ManaOptions extends ArrayList<Mana> {

    public ManaOptions () {};

    public ManaOptions(final ManaOptions options) {
        for (Mana mana: options) {
            this.add(mana.copy());
        }
    }

    public void addMana(List<ManaAbility> abilities, Game game) {
        if (isEmpty())
            this.add(new Mana());
        if (!abilities.isEmpty()) {
            if (abilities.size() == 1) {
                //if there is only one mana option available add it to all the existing options
                addMana(abilities.get(0).getNetMana(game));
            }
            else if (abilities.size() > 1) {
                //perform a union of all existing options and the new options
                List<Mana> copy = copy();
                this.clear();
                for (ManaAbility ability: abilities) {
                    for (Mana mana: copy) {
                        Mana newMana = new Mana();
                        newMana.add(mana);
                        newMana.add(ability.getNetMana(game));
                        this.add(newMana);
                    }
                }
            }
        }
    }

    public void addManaWithCost(List<ManaAbility> abilities, Game game) {
        if (isEmpty())
            this.add(new Mana());
        if (!abilities.isEmpty()) {
            if (abilities.size() == 1) {
                //if there is only one mana option available add it to all the existing options
                ManaAbility ability = abilities.get(0);
                if (ability.getManaCosts().isEmpty()) {
                    addMana(ability.getNetMana(game));
                }
                else {
                    addMana(ability.getManaCosts().getMana(), ability.getNetMana(game));
                }
            }
            else if (abilities.size() > 1) {
                //perform a union of all existing options and the new options
                List<Mana> copy = copy();
                this.clear();
                for (ManaAbility ability: abilities) {
                    if (ability.getManaCosts().isEmpty()) {
                        for (Mana mana: copy) {
                            Mana newMana = new Mana();
                            newMana.add(mana);
                            newMana.add(ability.getNetMana(game));
                            this.add(newMana);
                        }
                    }
                    else {
                        for (Mana mana: copy) {
                            Mana newMana = new Mana();
                            newMana.add(mana);
                            if (mana.contains(ability.getManaCosts().getMana())) {
                                newMana.subtract(ability.getManaCosts().getMana());
                                newMana.add(ability.getNetMana(game));
                            }
                            this.add(newMana);
                        }
                    }
                }
            }
        }
    }

    public void addMana(Mana addMana) {
        if (isEmpty())
            this.add(new Mana());
        for (Mana mana: this) {
            mana.add(addMana);
        }
    }

    public void addMana(ManaOptions options) {
        if (isEmpty())
            this.add(new Mana());
        if (!options.isEmpty()) {
            if (options.size() == 1) {
                //if there is only one mana option available add it to all the existing options
                addMana(options.get(0));
            }
            else if (options.size() > 1) {
                //perform a union of all existing options and the new options
                List<Mana> copy = copy();
                this.clear();
                for (Mana addMana: options) {
                    for (Mana mana: copy) {
                        Mana newMana = new Mana();
                        newMana.add(mana);
                        newMana.add(addMana);
                        this.add(newMana);
                    }
                }
            }
        }
    }

    public ManaOptions copy() {
        return new ManaOptions(this);
    }

    public void addMana(Mana cost, Mana addMana) {
        if (isEmpty())
            this.add(new Mana());
        for (Mana mana: this) {
            if (mana.contains(cost)) {
                mana.subtract(cost);
                mana.add(addMana);
            }
        }
    }

}