package com.github.dtschust.zork;

/* Has conditions*/
public class ZorkConditionHas extends ZorkCondition {
    private final String has;
    private final String owner;

    public ZorkConditionHas(String has, String object, String owner) {
        super(object);
        this.has = has;
        this.owner = owner;
    }

    @Override
    public boolean evaluate(ZorkGame game) {
        // Inventory is a special case as it isn't the name of any object in the game, check for it specifically
        if (owner.equals("inventory")) {
            return evaluateCondition(game.inventory.contains(object));
        } else {
            return game.getRoom(owner).map(r -> evaluateCondition(r.containsItem(object))).orElseGet(() ->
                    game.getContainer(owner).map(c -> evaluateCondition(c.containsItem(object))).orElse(false));
        }
    }

    private boolean evaluateCondition(boolean contained) {
        if (has.equals("yes")) return contained;
        else if (has.equals("no")) return !contained;
        return false;
    }
}