package foundation.capacity;

import java.util.Iterator;

import foundation.json.IJSONProvider;
import foundation.json.IJSONWriter;
import foundation.json.JSONReader;
import foundation.util.MapList;
import foundation.util.Util;

public class ActorsRuntime implements Iterable<ActorTarget>, IJSONProvider {

	private MapList<String, ActorTarget> actors;
	private CurrentActor current;
	
	
	public ActorsRuntime() {
		actors = new MapList<String, ActorTarget>();
		current = new CurrentActor();
	}

	public void loadOne(ActorTarget actor) {
		//1. 添加 Actor
		String id = actor.getId();
				
		if (!actors.contains(id)) {
			actors.add(id, actor);
		}
		
		//2. 设置当前默认 Actor Branch
		if (current.isEmptyDefault()) {
			current.setDefault(actor);
		}
	}
	
	public ActorTarget changeCurrent(String onlineCode, String targetId) {
		ActorTarget result = actors.get(targetId);
		
		current.set(onlineCode, result);
		
		return result;
	}

	public ActorTarget getCurrent(String onlineCode) {
		return current.get(onlineCode);
	}
	
	public ActorTarget get(String actorId) {
		return actors.get(actorId);
	}

	public void saveChanges(JSONReader changes) {
		//1. translate changes to capacity list
		MapList<String, Actor> actors = new MapList<String, Actor>();
		ActorBucket actorBucket = ActorBucket.getInstance();
		
		for (JSONReader reader: changes) {
			String id = reader.getString("id");
			
			if (Util.isEmpty(id)) {
				return;
			}
			
			Actor actor = actorBucket.get(id);
			
			if (actor == null) {
				continue;
			}
			
			actors.add(id, actor);
		}
		
		/*
		//2. add new
		for (Actor actor: itemList) {
			String id = actor.getId();
			
			if (!contains(id)) {
				add(id, actor);
			}
		}
		
		//3. delete 
		for (Actor actor: itemList) {
			String id = actor.getId();
			
			if (!actors.contains(id)) {
				remove(id);
				
				if (isEmpty()) {
					current = null;
				}
			}
		}
		*/
	}

	public void clear() {
		actors.clear();
	}

	@Override
	public Iterator<ActorTarget> iterator() {
		return actors.iterator();
	}
	
	@Override
	public void writeJSON(IJSONWriter writer) {
		writer.beginArray();
		
		for (ActorTarget actor: actors) {
			actor.writeJSON(writer);
		}
		
		writer.endArray();
	}
	
}