/*
 * 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.ui;

import android.content.Context;
import android.database.Cursor;
import android.text.TextUtils;

import net.micode.notes.data.Contact;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.tool.DataUtils;


public class NoteItemData {//便签数据的记录，包括各种常量，参数
    static final String [] PROJECTION = new String [] {//将便签id，提醒时间，背景颜色id，创建时间，关联桌面挂件，修改时间，便签数量，父文件夹id，文件夹id（便签的一段内容），便签的种类，桌面挂件的id，桌面挂件的类型的名称放在一个PROJECTION的字符串数组里
        NoteColumns.ID,//每个便签的序号ID
        NoteColumns.ALERTED_DATE,//提醒日期
        NoteColumns.BG_COLOR_ID,//背景颜色的序号id
        NoteColumns.CREATED_DATE,//创建日期
        NoteColumns.HAS_ATTACHMENT,//是否含有附件
        NoteColumns.MODIFIED_DATE,//修改日期
        NoteColumns.NOTES_COUNT,//便签数量
        NoteColumns.PARENT_ID,
        NoteColumns.SNIPPET,//文件夹名称或者文本注释内容
        NoteColumns.TYPE,//note的种类
        NoteColumns.WIDGET_ID,//挂件id
        NoteColumns.WIDGET_TYPE,//挂件的类型
    };

    private static final int ID_COLUMN                    = 0;
    private static final int ALERTED_DATE_COLUMN          = 1;
    private static final int BG_COLOR_ID_COLUMN           = 2;
    private static final int CREATED_DATE_COLUMN          = 3;
    private static final int HAS_ATTACHMENT_COLUMN        = 4;
    private static final int MODIFIED_DATE_COLUMN         = 5;
    private static final int NOTES_COUNT_COLUMN           = 6;
    private static final int PARENT_ID_COLUMN             = 7;
    private static final int SNIPPET_COLUMN               = 8;
    private static final int TYPE_COLUMN                  = 9;
    private static final int WIDGET_ID_COLUMN             = 10;
    private static final int WIDGET_TYPE_COLUMN           = 11;

    private long mId;//PROJECT的字符串名称对应的值
    private long mAlertDate;
    private int mBgColorId;
    private long mCreatedDate;
    private boolean mHasAttachment;
    private long mModifiedDate;
    private int mNotesCount;
    private long mParentId;//对方ID
    private String mSnippet;
    private int mType;
    private int mWidgetId;//宽度
    private int mWidgetType;//宽度形式
    private String mName;
    private String mPhoneNumber;

    private boolean mIsLastItem;//判断是否为最后一项
    private boolean mIsFirstItem;
    private boolean mIsOnlyOneItem;//判断文件夹下是否只有一个便签
    private boolean mIsOneNoteFollowingFolder;
    private boolean mIsMultiNotesFollowingFolder;//判断文件夹下是否有多个便签

    public NoteItemData(Context context, Cursor cursor) {//初始化NoteItemData,利用光标和context获取的内容
        mId = cursor.getLong(ID_COLUMN);//获取指定数据，并以type类型传回
        mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
        mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
        mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN);
        mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false;//判断行列
        mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN);
        mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
        mParentId = cursor.getLong(PARENT_ID_COLUMN);
        mSnippet = cursor.getString(SNIPPET_COLUMN);//获得字符串
        mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(//把每项前的方框符号和✔符号去掉
                NoteEditActivity.TAG_UNCHECKED, "");
        mType = cursor.getInt(TYPE_COLUMN);
        mWidgetId = cursor.getInt(WIDGET_ID_COLUMN);
        mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN);

        mPhoneNumber = "";//初始化电话号码的信息
        if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {//如果父文件的id是call_record_folder
            mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);//使用DataUtils类中定义的函数获取电话号码信息
            if (!TextUtils.isEmpty(mPhoneNumber)) {//若mphonenumber里有符合字符串，则用contart功能连接
                mName = Contact.getContact(context, mPhoneNumber);//通过phonenumber，调用getContact，利用键值对获取对应的name
                if (mName == null) {
                    mName = mPhoneNumber;//若未保存名字，以号码命名
                }
            }
        }

        if (mName == null) {
            mName = "";
        }//若没有对name复制成功，则把name设置为空值
        checkPostion(cursor);//检查光标位置
    }

    private void checkPostion(Cursor cursor) {//根据光标位置设置标记
        mIsLastItem = cursor.isLast() ? true : false;//分别为各种描述状态的变量进行赋值
        mIsFirstItem = cursor.isFirst() ? true : false;
        mIsOnlyOneItem = (cursor.getCount() == 1);
        mIsMultiNotesFollowingFolder = false;
        mIsOneNoteFollowingFolder = false;//初始化“多重子文件”“单一子文件”2个标记

        if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {//如果对象的类型为便签且不为第一个项
            int position = cursor.getPosition();//获得光标位置
            if (cursor.moveToPrevious()) {//如果光标移动
                if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER//若光标满足SYSTEM或FOLDER格式
                        || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
                    if (cursor.getCount() > (position + 1)) {//若光标位置大于当前位置，置多便签子文件夹标记为真
                        mIsMultiNotesFollowingFolder = true;//设置为多重便签
                    } else {
                        mIsOneNoteFollowingFolder = true;
                    }
                }
                if (!cursor.moveToNext()) {//若光标不能重新向下走则报错
                    throw new IllegalStateException("cursor move to previous but can't move back");
                }
            }
        }
    }

    public boolean isOneFollowingFolder() {
        return mIsOneNoteFollowingFolder;
    }//判断是否只有一个便签

    public boolean isMultiFollowingFolder() {
        return mIsMultiNotesFollowingFolder;
    }//若数据父id为保存至文件夹模式的id且满足电话号码单元不为空，则isCallRecord为true

    public boolean isLast() {
        return mIsLastItem;
    }//判断是否为最后一个项

    public String getCallName() {
        return mName;
    }//获得便签的姓名

    public boolean isFirst() {
        return mIsFirstItem;
    }//判断是否是第一个项

    public boolean isSingle() {
        return mIsOnlyOneItem;
    }//判断是否只有一个项

    public long getId() {
        return mId;
    }//获得对应的ID值

    public long getAlertDate() {
        return mAlertDate;
    }//获取设置的提醒时间

    public long getCreatedDate() {
        return mCreatedDate;
    }//获取创建时间

    public boolean hasAttachment() {
        return mHasAttachment;
    }//判断是否关联桌面挂件

    public long getModifiedDate() {
        return mModifiedDate;
    }//获得修改后时间

    public int getBgColorId() {
        return mBgColorId;
    }//获取背景颜色

    public long getParentId() {
        return mParentId;
    }//获取父进程id

    public int getNotesCount() {
        return mNotesCount;
    }//获取便签数量

    public long getFolderId () {
        return mParentId;
    }//获取文件夹id

    public int getType() {
        return mType;
    }//获得项的类型

    public int getWidgetType() {
        return mWidgetType;
    }//获取挂件类型

    public int getWidgetId() {
        return mWidgetId;
    }//获取挂件id

    public String getSnippet(){
        return mSnippet;
    }//获取便签的外观片段
    public boolean hasAlert() {
        return (mAlertDate > 0);
    }//判读此便签是否有提醒功能

    public boolean isCallRecord() {
        return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));
    }//如果父类id保存至文件夹模式并且电话号码单元不为空

    public static int getNoteType(Cursor cursor) {
        return cursor.getInt(TYPE_COLUMN);
    }//获取便签类型
}