/*
 * 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;

// Metadata类，继承自Task类
public class MetaData extends Task {
    private final static String TAG = MetaData.class.getSimpleName(); // 定义日志标签

    private String mRelatedGid = null; // 用于存储关联的GID

    // 设置元数据
    public void setMeta(String gid, JSONObject metaInfo) {
        try {
            metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); // 将GID放入元数据
        } catch (JSONException e) {
            Log.e(TAG, "failed to put related gid"); // 日志记录错误
        }
        setNotes(metaInfo.toString()); // 将元数据转换为字符串并设置为笔记
        setName(GTaskStringUtils.META_NOTE_NAME); // 设置名称
    }

    // 获取关联的GID
    public String getRelatedGid() {
        return mRelatedGid; // 返回关联的GID
    }

    // 检查是否值得保存
    @Override
    public boolean isWorthSaving() {
        return getNotes() != null; // 如果笔记不为空，则值得保存
    }

    // 从远程JSON设置内容
    @Override
    public void setContentByRemoteJSON(JSONObject js) {
        super.setContentByRemoteJSON(js); // 调用父类的方法
        if (getNotes() != null) {
            try {
                JSONObject metaInfo = new JSONObject(getNotes().trim()); // 解析笔记内容为JSON对象
                mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID); // 获取关联的GID
            } catch (JSONException e) {
                Log.w(TAG, "failed to get related gid"); // 日志记录警告
                mRelatedGid = null; // 如果发生错误，设置为null
            }
        }
    }

    // 从本地JSON设置内容（不应调用此方法）
    @Override
    public void setContentByLocalJSON(JSONObject js) {
        throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); // 引发错误
    }

    // 从内容获取本地JSON（不应调用此方法）
    @Override
    public JSONObject getLocalJSONFromContent() {
        throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); // 引发错误
    }

    // 获取同步操作（不应调用此方法）
    @Override
    public int getSyncAction(Cursor c) {
        throw new IllegalAccessError("MetaData:getSyncAction should not be called"); // 引发错误
    }
}