/*
 * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.micode.notes.gtask.data;

import android.database.Cursor;
import android.util.Log;

import net.micode.notes.tool.GTaskStringUtils;

import org.json.JSONException;
import org.json.JSONObject;


public class MetaData extends Task { // 元数据类，继承自Task
    private final static String TAG = MetaData.class.getSimpleName(); // 日志标签

    private String mRelatedGid = null; // 关联的Google任务ID

    // 设置元数据
    public void setMeta(String gid, JSONObject metaInfo) {
        try {
            metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); // 在元数据中添加Google任务ID
        } catch (JSONException e) {
            Log.e(TAG, "failed to put related gid"); // 添加失败
        }
        setNotes(metaInfo.toString()); // 将元数据JSON字符串设为备注
        setName(GTaskStringUtils.META_NOTE_NAME); // 设置名称为元数据笔记名称
    }

    // 获取关联的Google任务ID
    public String getRelatedGid() {
        return mRelatedGid;
    }

    // 重写：检查是否值得保存（只要有备注就值得保存）
    @Override
    public boolean isWorthSaving() {
        return getNotes() != null; // 只要有备注就值得保存
    }

    // 重写：从远程JSON设置内容
    @Override
    public void setContentByRemoteJSON(JSONObject js) {
        super.setContentByRemoteJSON(js); // 调用父类方法
        if (getNotes() != null) { // 如果有备注
            try {
                JSONObject metaInfo = new JSONObject(getNotes().trim()); // 解析备注为JSON
                mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID); // 获取关联的Google任务ID
            } catch (JSONException e) {
                Log.w(TAG, "failed to get related gid"); // 获取失败
                mRelatedGid = null; // 设为null
            }
        }
    }

    // 重写：从本地JSON设置内容（不应该被调用）
    @Override
    public void setContentByLocalJSON(JSONObject js) {
        // 这个函数不应该被调用
        throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); // 抛出异常
    }

    // 重写：从内容生成本地JSON（不应该被调用）
    @Override
    public JSONObject getLocalJSONFromContent() {
        throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); // 抛出异常
    }

    // 重写：获取同步操作（不应该被调用）
    @Override
    public int getSyncAction(Cursor c) {
        throw new IllegalAccessError("MetaData:getSyncAction should not be called"); // 抛出异常
    }
}