/*
 * 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.data;

import android.net.Uri;
public class Notes {
    /*代码首先给出了定义首先，
    该类定义了一些常量，如AUTHORITY、TAG等。AUTHORITY表示提供内容的授权，
    TAG是用于日志输出的标签。TYPE_NOTE、TYPE_FOLDER和TYPE_SYSTEM分别表示笔记、文件夹和系统类型的常量。*/
    public static final String AUTHORITY = "micode_notes";
    public static final String TAG = "Notes";
    public static final int TYPE_NOTE     = 0;
    public static final int TYPE_FOLDER   = 1;
    public static final int TYPE_SYSTEM   = 2;

    /**
     * Following IDs are system folders' identifiers
     * {@link Notes#ID_ROOT_FOLDER } is default folder
     * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
     * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
     */
    /*接下来，定义了一些系统文件夹的标识符，如ID_ROOT_FOLDER、ID_TEMPARAY_FOLDER等。
    这些标识符用于表示系统文件夹的唯一ID，比如根文件夹、临时文件夹和垃圾箱文件夹。*/
    public static final int ID_ROOT_FOLDER = 0;
    public static final int ID_TEMPARAY_FOLDER = -1;
    public static final int ID_CALL_RECORD_FOLDER = -2;
    public static final int ID_TRASH_FOLER = -3;
    /*然后，定义了一些Intent Extra的常量，用于在Intent中传递额外的信息，如提醒日期、背景颜色ID、小部件ID等。*/
    public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
    public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
    public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
    public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
    public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
    public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";
//    /*接着，定义了小部件类型的常量，如TYPE_WIDGET_INVALIDE、TYPE_WIDGET_2X等。
//    这些常量用于表示小部件的类型，比如无效类型、2x2小部件和4x4小部件。*/
    public static final int TYPE_WIDGET_INVALIDE      = -1;
    public static final int TYPE_WIDGET_2X            = 0;
    public static final int TYPE_WIDGET_4X            = 1;

    public static class DataConstants {
        public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
        public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
    }
    /*接下来，定义了DataConstants接口，其中包含了一些数据常量，如NOTE和CALL_NOTE。这些常量用于表示数据的类型，如文本笔记和通话记录。*/

    /**
     * Uri to query all notes and folders
     */
    /*然后，定义了两个Uri常量，CONTENT_NOTE_URI和CONTENT_DATA_URI，用于查询所有的笔记和文件夹以及数据。*/
    public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");

    /**
     * Uri to query data
     */
    public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
    /*接下来，定义了NoteColumns接口，其中包含了一些笔记和文件夹的列名常量，如ID、PARENT_ID等。这些常量用于表示数据库表中的列名。*/
    public interface NoteColumns {
        /**
         * The unique ID for a row
         * <P> Type: INTEGER (long) </P>
         */
        public static final String ID = "_id";

        /**
         * The parent's id for note or folder
         * <P> Type: INTEGER (long) </P>
         */
        public static final String PARENT_ID = "parent_id";

        /**
         * Created data for note or folder
         * <P> Type: INTEGER (long) </P>
         */
        public static final String CREATED_DATE = "created_date";

        /**
         * Latest modified date
         * <P> Type: INTEGER (long) </P>
         */
        public static final String MODIFIED_DATE = "modified_date";


        /**
         * Alert date
         * <P> Type: INTEGER (long) </P>
         */
        public static final String ALERTED_DATE = "alert_date";

        /**
         * Folder's name or text content of note
         * <P> Type: TEXT </P>
         */
        public static final String SNIPPET = "snippet";

        /**
         * Note's widget id
         * <P> Type: INTEGER (long) </P>
         */
        public static final String WIDGET_ID = "widget_id";

        /**
         * Note's widget type
         * <P> Type: INTEGER (long) </P>
         */
        public static final String WIDGET_TYPE = "widget_type";

        /**
         * Note's background color's id
         * <P> Type: INTEGER (long) </P>
         */
        public static final String BG_COLOR_ID = "bg_color_id";

        /**
         * For text note, it doesn't has attachment, for multi-media
         * note, it has at least one attachment
         * <P> Type: INTEGER </P>
         */
        public static final String HAS_ATTACHMENT = "has_attachment";

        /**
         * Folder's count of notes
         * <P> Type: INTEGER (long) </P>
         */
        public static final String NOTES_COUNT = "notes_count";

        /**
         * The file type: folder or note
         * <P> Type: INTEGER </P>
         */
        public static final String TYPE = "type";

        /**
         * The last sync id
         * <P> Type: INTEGER (long) </P>
         */
        public static final String SYNC_ID = "sync_id";

        /**
         * Sign to indicate local modified or not
         * <P> Type: INTEGER </P>
         */
        public static final String LOCAL_MODIFIED = "local_modified";

        /**
         * Original parent id before moving into temporary folder
         * <P> Type : INTEGER </P>
         */
        public static final String ORIGIN_PARENT_ID = "origin_parent_id";

        /**
         * The gtask id
         * <P> Type : TEXT </P>
         */
        public static final String GTASK_ID = "gtask_id";

        /**
         * The version code
         * <P> Type : INTEGER (long) </P>
         */
        public static final String VERSION = "version";
    }

    /*然后，定义了DataColumns接口，其中包含了一些数据的列名常量，如ID、MIME_TYPE等。这些常量用于表示数据表中的列名。*/
    public interface DataColumns {
        /**
         * The unique ID for a row
         * <P> Type: INTEGER (long) </P>
         */
        public static final String ID = "_id";

        /**
         * The MIME type of the item represented by this row.
         * <P> Type: Text </P>
         */
        public static final String MIME_TYPE = "mime_type";

        /**
         * The reference id to note that this data belongs to
         * <P> Type: INTEGER (long) </P>
         */
        public static final String NOTE_ID = "note_id";

        /**
         * Created data for note or folder
         * <P> Type: INTEGER (long) </P>
         */
        public static final String CREATED_DATE = "created_date";

        /**
         * Latest modified date
         * <P> Type: INTEGER (long) </P>
         */
        public static final String MODIFIED_DATE = "modified_date";

        /**
         * Data's content
         * <P> Type: TEXT </P>
         */
        public static final String CONTENT = "content";


        /**
         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
         * integer data type
         * <P> Type: INTEGER </P>
         */
        public static final String DATA1 = "data1";

        /**
         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
         * integer data type
         * <P> Type: INTEGER </P>
         */
        public static final String DATA2 = "data2";

        /**
         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
         * TEXT data type
         * <P> Type: TEXT </P>
         */
        public static final String DATA3 = "data3";

        /**
         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
         * TEXT data type
         * <P> Type: TEXT </P>
         */
        public static final String DATA4 = "data4";

        /**
         * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
         * TEXT data type
         * <P> Type: TEXT </P>
         */
        public static final String DATA5 = "data5";
    }
    /*接下来，定义了TextNote和CallNote内部类，分别实现了DataColumns接口。这两个内部类用于表示文本笔记和通话记录的数据。*/
    public static final class TextNote implements DataColumns {
        /**
         * Mode to indicate the text in check list mode or not
         * <P> Type: Integer 1:check list mode 0: normal mode </P>
         */
        public static final String MODE = DATA1;

        public static final int MODE_CHECK_LIST = 1;

        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";

        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";

        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
    }

    public static final class CallNote implements DataColumns {
        /**
         * Call date for this record
         * <P> Type: INTEGER (long) </P>
         */
        public static final String CALL_DATE = DATA1;

        /**
         * Phone number for this record
         * <P> Type: TEXT </P>
         */
        /*最后，定义了这两个内部类的内容类型和内容项类型的常量，以及对应的Uri常量。*/
        public static final String PHONE_NUMBER = DATA3;

        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";

        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";

        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
    }
}