/*
 * 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;

//元数据类，继承自Task类，用于处理与Google Task相关的元数据信息
public class MetaData extends Task {// 日志标签
    private final static String TAG = MetaData.class.getSimpleName();// 关联的Google Task ID

    private String mRelatedGid = null;//设置元数据信息

    public void setMeta(String gid, JSONObject metaInfo) {
        try {  // 将Google Task ID添加到元数据中
            metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
        } catch (JSONException e) {
            Log.e(TAG, "failed to put related gid");// 将元数据JSON对象转换为字符串并保存到notes字段
        }
        setNotes(metaInfo.toString());// 设置任务名称为预定义的元数据名称
        setName(GTaskStringUtils.META_NOTE_NAME);
    }

    public String getRelatedGid() {
        return mRelatedGid;
    }//检查是否需要保存

    @Override
    public boolean isWorthSaving() {
        return getNotes() != null;
    }//从远程JSON数据设置内容

    @Override
    public void setContentByRemoteJSON(JSONObject js) { // 调用父类方法处理基本数据
        super.setContentByRemoteJSON(js);// 如果notes字段不为空，尝试解析其中的Google Task ID
        if (getNotes() != null) {
            try {
                JSONObject metaInfo = new JSONObject(getNotes().trim());
                mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
            } catch (JSONException e) {
                Log.w(TAG, "failed to get related gid");
                mRelatedGid = null;//从本地JSON数据设置内容（不应被调用）
            }
        }
    }



    @Override
    public void setContentByLocalJSON(JSONObject js) {// 此方法不应被调用，直接抛出异常
        // this function should not be called
        throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
    }

    @Override
    public JSONObject getLocalJSONFromContent() { // 此方法不应被调用，直接抛出异常
        throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
    }

    @Override
    public int getSyncAction(Cursor c) { // 此方法不应被调用，直接抛出异常
        throw new IllegalAccessError("MetaData:getSyncAction should not be called");
    }

}