package mage.abilities.costs;

import mage.abilities.costs.mana.ManaCost;
import mage.game.Game;
import mage.util.CardUtil;

/**
 * Alternative costs
 *
 * @param <T>
 * @author LevelX2
 */
public class AlternativeCostImpl<T extends AlternativeCostImpl<T>> extends CostsImpl<Cost> implements AlternativeCost {

    protected String name;
    protected final String reminderText;
    protected boolean isMana;

    protected boolean activated;

    public AlternativeCostImpl(String name, String reminderText, Cost cost) {
        this.activated = false;
        this.name = name;
        this.isMana = cost instanceof ManaCost;
        this.reminderText = reminderText;
        this.add(cost);
    }

    protected AlternativeCostImpl(final AlternativeCostImpl<?> cost) {
        super(cost);
        this.name = cost.name;
        this.reminderText = cost.reminderText;
        this.activated = cost.activated;
        this.isMana = cost.isMana;
    }

    @Override
    public String getName() {
        return this.name;
    }

    /**
     * Returns the complete text for the addional cost or if onlyCost is true
     * only the pure text for the included native cost
     *
     * @param onlyCost
     * @return
     */
    @Override
    public String getText(boolean onlyCost) {
        if (onlyCost) {
            return getText();
        } else {
            String costName = (name != null ? name : "");
            String delimiter = (!isMana || (!costName.isEmpty() && costName.substring(costName.length() - 1).matches("\\d")))
                    ? "&mdash;" : " ";
            return costName + delimiter + getText() + (isMana ? "" : '.');
        }
    }

    /**
     * Returns a reminder text, if the cost has one
     *
     * @return
     */
    @Override
    public String getReminderText() {
        if (reminderText != null && !reminderText.isEmpty()) {
            return "<i>(" + reminderText.replace("{cost}", CardUtil.getTextWithFirstCharLowerCase(this.getText(true))) + ")</i>";
        }
        return "";
    }

    /**
     * Returns a text suffix for the game log, that can be added to the cast
     * message.
     *
     * @param position - if there are multiple costs, it's the postion the cost
     *                 is set (starting with 0)
     * @return
     */
    @Override
    public String getCastSuffixMessage(int position) {
        StringBuilder sb = new StringBuilder(position > 0 ? " and " : "").append(" with ");
        sb.append(name);
        return sb.toString();
    }

    /**
     * If the player intends to pay the cost, the cost will be activated
     */
    @Override
    public void activate() {
        activated = true;
    }

    /**
     * Reset the activate and count information
     */
    @Override
    public void reset() {
        activated = false;
    }

    /**
     * Returns if the cost was activated
     *
     * @param game
     * @return
     */
    @Override
    public boolean isActivated(Game game) {
        return activated;
    }

    @Override
    public AlternativeCostImpl<?> copy() {
        return new AlternativeCostImpl<>(this);
    }

    @Override
    public Cost getCost() {
        if (this.iterator().hasNext()) {
            return this.iterator().next();
        }
        return null;
    }
}