ink-update/app/src/main/java/dev/equwal/inkupdate/Notify.kt

app/src/main/java/dev/equwal/inkupdate/Notify.kt (2642 bytes)
1 // SPDX-License-Identifier: GPL-3.0-or-later
2 // Copyright (c) 2026 equwal
3 package dev.equwal.inkupdate
4 
5 import android.app.Notification
6 import android.app.NotificationChannel
7 import android.app.NotificationManager
8 import android.app.PendingIntent
9 import android.content.Context
10 import android.content.Intent
11 import android.net.Uri
12 
13 /**
14  * One notification for each app that has an update.
15  *
16  * The id comes from the package name, so a later check replaces the old
17  * notification instead of adding a second one. The caller tells a person about
18  * a version once. Nothing else makes a notification.
19  */
20 object Notify {
21 
22     private const val CHANNEL = "updates"
23 
24     /**
25      * Tells the person about one update.
26      *
27      * @return true when the notification went out. It does not go out while
28      *         the person keeps notifications off. The caller must then ask
29      *         again after the next check, so the update is not lost.
30      */
31     fun update(context: Context, w: Watched, r: Result.Update): Boolean {
32         val m = context.getSystemService(NotificationManager::class.java) ?: return false
33         if (!m.areNotificationsEnabled()) return false
34         channel(m, context)
35 
36         val b = Notification.Builder(context, CHANNEL)
37             .setSmallIcon(R.drawable.ic_notify)
38             .setContentTitle(w.title + " " + r.versionName + " is ready")
39             .setContentText("From " + r.source)
40             .setAutoCancel(true)
41             .setContentIntent(open(context, r.page, w.pkg.hashCode()))
42 
43         if (r.apk != null) {
44             b.addAction(
45                 Notification.Action.Builder(
46                     null as android.graphics.drawable.Icon?,
47                     "Download",
48                     open(context, r.apk, w.pkg.hashCode() + 1)
49                 ).build()
50             )
51         }
52         m.notify(w.pkg.hashCode(), b.build())
53         return true
54     }
55 
56     private fun channel(m: NotificationManager, context: Context) {
57         m.createNotificationChannel(
58             NotificationChannel(
59                 CHANNEL,
60                 context.getString(R.string.channel_updates),
61                 NotificationManager.IMPORTANCE_DEFAULT
62             )
63         )
64     }
65 
66     /** Opens a page in whatever app handles it: F-Droid, Play, or a browser. */
67     private fun open(context: Context, url: String, id: Int): PendingIntent {
68         val i = Intent(Intent.ACTION_VIEW, Uri.parse(url))
69             .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
70         return PendingIntent.getActivity(
71             context, id, i, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
72         )
73     }
74 }