/*
 * 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.tool;

import android.content.ContentProviderOperation;
import android.content.ContentProviderResult;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.OperationApplicationException;
import android.database.Cursor;
import android.os.RemoteException;
import android.util.Log;

import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.CallNote;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;

import java.util.ArrayList;
import java.util.HashSet;


public class DataUtils {
public static final String TAG = "DataUtils"; //静态常量，日志标记
//批量删除笔记，返回操作成功与否的布尔值
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) {
if (ids == null) { //如果id集合为空，记录日志并返回true
Log.d(TAG, "the ids is null");
return true;
}
if (ids.size() == 0) { //如果集合中没有id，记录日志并返回true
Log.d(TAG, "no id is in the hashset");
return true;
}
//创建操作列表
ArrayList operationList = new ArrayList();
//遍历id集合，为每个id创建一个对应的删除操作，并添加到操作列表中
for (long id : ids) {
if(id == Notes.ID_ROOT_FOLDER) { //如果是系统文件夹根目录，记录日志并跳过
Log.e(TAG, "Don't delete system folder root");
continue;
}
ContentProviderOperation.Builder builder = ContentProviderOperation
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
operationList.add(builder.build());
}
try { //调用applyBatch方法执行操作
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
//检查是否操作成功，如不成功记录日志并返回false，成功返回true
if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false;
}
return true;
} catch (RemoteException e) { //捕获异常并记录日志，返回false
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) { //同上
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}
//移动某个笔记到指定文件夹
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
//设置更新值
ContentValues values = new ContentValues();
values.put(NoteColumns.PARENT_ID, desFolderId);
values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
values.put(NoteColumns.LOCAL_MODIFIED, 1);
resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
}
//批量移动笔记到指定文件夹
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, long folderId) {
if (ids == null) { //同上，判断id集合是否合法
Log.d(TAG, "the ids is null");
return true;
}
ArrayList operationList = new ArrayList();
//遍历id集合，为每个id创建一个对应的更新操作，添加到操作列表中
for (long id : ids) {
ContentProviderOperation.Builder builder = ContentProviderOperation
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
builder.withValue(NoteColumns.PARENT_ID, folderId);
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
operationList.add(builder.build());
}
try { //同上，批量执行操作，并检查是否成功
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false;
}
return true;
} catch (RemoteException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}
//获取用户文件夹数量（除系统文件夹）
public static int getUserFolderCount(ContentResolver resolver) {
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { "COUNT(*)" }, //查询总数
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
null);
int count = 0;
if(cursor != null) { //如果返回的游标不为空
if(cursor.moveToFirst()) {
try {
count = cursor.getInt(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "get folder count failed:" + e.toString());
} finally {
cursor.close();
}
}
}
return count;
}
//判断指定类型笔记是否在数据库中可见（不在回收站）
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null,
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
new String [] {String.valueOf(type)},
null);
boolean exist = false;
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}
//判断指定id的笔记是否存在于数据库中
public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null, null, null);
boolean exist = false;
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}
//判断指定id的数据是否存在于数据库中
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
null, null, null, null);
boolean exist = false;
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}
//判断指定文件夹名称是否已存在于已有的文件夹名称中
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.SNIPPET + "=?",
new String[] { name }, null);
boolean exist = false;
if(cursor != null) {
if(cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}
//获取某个文件夹内的所有笔记的小部件属性
public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) {
Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
NoteColumns.PARENT_ID + "=?",
new String[] { String.valueOf(folderId) },
null);
HashSet set = null;
if (c != null) {
if (c.moveToFirst()) {
set = new HashSet();
do {
try {
AppWidgetAttribute widget = new AppWidgetAttribute();
widget.widgetId = c.getInt(0);
widget.widgetType = c.getInt(1);
set.add(widget);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, e.toString());
}
} while (c.moveToNext());
}
c.close();
}
return set;
}
 // 获取通话笔记中的电话号码
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
// 构建查询参数
Cursor cursor = resolver.query(
Notes.CONTENT_DATA_URI, // 数据URI
new String[]{CallNote.PHONE_NUMBER}, // 返回的列
// 查询条件
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
// 查询参数
new String[]{String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE},
null // 排序
);
if (cursor != null && cursor.moveToFirst()) {
try {
return cursor.getString(0); // 返回电话号码
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "获取电话号码失败 " + e.toString());
} finally {
cursor.close();
}
}
return ""; // 没查到电话号码，返回空字符串
}

// 根据电话号码和通话时间，获取通话笔记的ID
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
// 构建查询参数
Cursor cursor = resolver.query(
Notes.CONTENT_DATA_URI, // 数据URI
new String[]{CallNote.NOTE_ID}, // 返回的列
// 查询条件
CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+ CallNote.PHONE_NUMBER + ",?)",
// 查询参数
new String[]{String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber},
null // 排序
);
if (cursor != null) {
if (cursor.moveToFirst()) {
try {
return cursor.getLong(0); // 返回通话笔记的ID
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "获取通话笔记ID失败 " + e.toString());
}
}
cursor.close();
}
return 0; // 没查到通话笔记，返回0
}

// 根据笔记ID获取笔记片段
public static String getSnippetById(ContentResolver resolver, long noteId) {
// 构建查询参数
Cursor cursor = resolver.query(
Notes.CONTENT_NOTE_URI, // 笔记URI
new String[]{NoteColumns.SNIPPET}, // 返回的列
// 查询条件
NoteColumns.ID + "=?",
// 查询参数
new String[]{String.valueOf(noteId)},
null // 排序
);
if (cursor != null) {
String snippet = "";
if (cursor.moveToFirst()) {
snippet = cursor.getString(0); // 返回笔记片段
}
cursor.close();
return snippet;
}
// 没查到笔记，抛出异常
throw new IllegalArgumentException("未找到ID为" + noteId + "的笔记");
}

// 获取格式化后的笔记片段
public static String getFormattedSnippet(String snippet) {
if (snippet != null) {
// 去掉首尾空格
snippet = snippet.trim();
// 找到第一个换行符
int index = snippet.indexOf('\n');
if (index != -1) {
snippet = snippet.substring(0, index); // 截取第一个换行符之前的片段
}
}
return snippet;
}
