1 /*
2  * Copyright (C) 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.settings.datausage.lib
18 
19 import android.annotation.StringRes
20 import android.content.Context
21 import android.content.res.Resources
22 import android.icu.text.UnicodeSet
23 import android.icu.text.UnicodeSetSpanner
24 import android.text.BidiFormatter
25 import android.text.format.Formatter
26 import com.android.internal.R
27 
28 class DataUsageFormatter(private val context: Context) {
29 
30     data class FormattedDataUsage(
31         val displayText: String,
32         val contentDescription: String,
33     ) {
formatnull34         fun format(context: Context, @StringRes resId: Int, vararg formatArgs: Any?) =
35             FormattedDataUsage(
36                 displayText = context.getString(resId, displayText, *formatArgs),
37                 contentDescription = context.getString(resId, contentDescription, *formatArgs),
38             )
39     }
40 
41     /** Formats the data usage. */
42     fun formatDataUsage(sizeBytes: Long): FormattedDataUsage {
43         val result = Formatter.formatBytes(context.resources, sizeBytes, Formatter.FLAG_IEC_UNITS)
44         return FormattedDataUsage(
45             displayText = BidiFormatter.getInstance().unicodeWrap(
46                 context.getString(R.string.fileSizeSuffix, result.value, result.units)
47             ),
48             contentDescription = context.getString(
49                 R.string.fileSizeSuffix, result.value, result.unitsContentDescription
50             ),
51         )
52     }
53 
54     companion object {
55         /**
56          * Gets the display unit of the given bytes.
57          *
58          * Similar to MeasureFormat.getUnitDisplayName(), but with the expected result for the bytes
59          * in Settings, and align with other places in Settings.
60          */
getBytesDisplayUnitnull61         fun Resources.getBytesDisplayUnit(bytes: Long): String =
62             Formatter.formatBytes(this, bytes, Formatter.FLAG_IEC_UNITS).units
63     }
64 }
65