sdm03/src/main/java/com/github/dtschust/zork/repl/actions/ReadAction.java

package com.github.dtschust.zork.repl.actions;

import com.github.dtschust.zork.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkItem;

import java.util.List;

import static com.github.dtschust.zork.Zork.Type.ITEM;

public class ReadAction implements Action {
    @Override
    public boolean matchesInput(List<String> arguments) {
        return arguments.get(0).equals("read");
    }

    @Override
    public int getMinimumArgCount() {
        return 2;
    }

    @Override
    public void run(ZorkGame game, List<String> arguments) {
        final String what = arguments.get(1);

        if (game.inventory.contains(what)) {
            ZorkItem tempItem = (ZorkItem) game.get(ITEM, what);
            if (tempItem.writing != null && !tempItem.writing.isEmpty()) {
                System.out.println(tempItem.writing);
            } else {
                System.out.println("Nothing written.");
            }
        } else {
            System.out.println("Error");
        }
    }
}