package chat.module.friendcircle;

import java.util.ArrayList;
import java.util.List;

import chat.module.ConcurrentMapList;
import chat.server.im.DataPool;
import chat.user.User;
import frame.object.data.Entity;
import frame.object.data.ID;
import frame.util.MapList;

public class FriendCircle {

	private static ConcurrentMapList<CircleObject> allList;
	private ConcurrentMapList<CircleObject> itemList;
	private MapList<User> attentionList;
	private boolean attention;
	
	static {
		allList = new ConcurrentMapList<CircleObject>();
	}
	
	public FriendCircle() {
		itemList = new ConcurrentMapList<CircleObject>();
    	attentionList = new MapList<User>();
	}
	
	public void loadOneCricleObject(Entity entity) throws Exception {
		CircleObject circleObject = new CircleObject(this);
		circleObject.load(entity);
		
		String id = circleObject.getId();
		itemList.add(id, circleObject);
		
		String ownerId = circleObject.getOwnerId();
		if (!allList.contains(ownerId)) {
			allList.add(id, circleObject);
		}
	}

	public String createOneCircleObject(DataPool dataPool) {
		String id = ID.newValue();
		
		CircleObject result = new CircleObject(this);
		result.setId(id);
		result.load(dataPool);
		
		result.insertToDB();
		itemList.add(id, result);
		
		return id;
	}
	
	public static List<CircleObject> getCircleObjectList(int pageNo, int pageSize) {
		List<CircleObject> result = new ArrayList<CircleObject>();
		
		int begin = pageNo * pageSize;
		int end = Math.min((begin + pageSize), allList.size());
		
		CircleObject object;
		
		for (int i = begin; i < end; i++) {
			object = allList.get(i);
			result.add(object);
		}
		
		return result;
	}
	
	public List<CircleObject> getOneUserCircleObjectList(int pageNo, int pageSize) {
		List<CircleObject> result = new ArrayList<CircleObject>();
		
		int begin = pageNo * pageSize;
		int end = Math.min((begin + pageSize), itemList.size());
		
		CircleObject object;
		
		for (int i = begin; i < end; i++) {
			object = itemList.get(i);
			result.add(object);
		}
		
		return result;
	}

	public CircleObject getOneCircleObjectList(String circleObjectId) {
		return itemList.get(circleObjectId);
	}
	
	public boolean isAttention() {
		return attention;
	}

	public void setAttention(boolean attention) {
		this.attention = attention;
	}

	public void addOneAttention(User user) {
		if (user == null) {
			return;
		}
		
		String userId = user.getId();
		
		if (!attentionList.contains(userId)) {
			attentionList.add(userId, user);
		}
	}

	public CircleObject getOneCircleObject(String circleObjectId) {
		return itemList.get(circleObjectId);
	}
	
}