new feature: create custom images

app/src/main/java/sh/sar/isodroid/notification/CreateImgReceiver.kt

@@ -0,0 +1,19 @@
+package sh.sar.isodroid.notification
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import sh.sar.isodroid.isodrive.CreateImgEventBus
+
+class CreateImgReceiver : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        if (intent.action == NotificationHelper.ACTION_CANCEL_CREATE) {
+            CoroutineScope(Dispatchers.Main).launch {
+                CreateImgEventBus.cancel()
+            }
+        }
+    }
+}

app/src/main/java/sh/sar/isodroid/notification/NotificationHelper.kt

@@ -16,8 +16,11 @@ class NotificationHelper(private val context: Context) {
 
     companion object {
         const val CHANNEL_ID = "iso_drive_mount_status"
+        const val CHANNEL_ID_PROGRESS = "iso_drive_progress"
         const val NOTIFICATION_ID = 1001
+        const val NOTIFICATION_ID_PROGRESS = 1002
         const val ACTION_UNMOUNT = "sh.sar.isodroid.ACTION_UNMOUNT"
+        const val ACTION_CANCEL_CREATE = "sh.sar.isodroid.ACTION_CANCEL_CREATE"
 
         @Volatile
         private var instance: NotificationHelper? = null
@@ -32,11 +35,11 @@ class NotificationHelper(private val context: Context) {
     private val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
 
     init {
-        createNotificationChannel()
+        createNotificationChannels()
     }
 
-    private fun createNotificationChannel() {
-        val channel = NotificationChannel(
+    private fun createNotificationChannels() {
+        val mountChannel = NotificationChannel(
             CHANNEL_ID,
             "Mount Status",
             NotificationManager.IMPORTANCE_LOW
@@ -44,7 +47,18 @@ class NotificationHelper(private val context: Context) {
             description = "Shows when an ISO/IMG file is mounted"
             setShowBadge(false)
         }
-        notificationManager.createNotificationChannel(channel)
+
+        val progressChannel = NotificationChannel(
+            CHANNEL_ID_PROGRESS,
+            "Progress",
+            NotificationManager.IMPORTANCE_LOW
+        ).apply {
+            description = "Shows progress for file operations"
+            setShowBadge(false)
+        }
+
+        notificationManager.createNotificationChannel(mountChannel)
+        notificationManager.createNotificationChannel(progressChannel)
     }
 
     fun showMountedNotification(mountStatus: MountStatus) {
@@ -106,4 +120,68 @@ class NotificationHelper(private val context: Context) {
     fun hideNotification() {
         notificationManager.cancel(NOTIFICATION_ID)
     }
+
+    fun showCreateProgressNotification(fileName: String, progress: Int, bytesWritten: Long, totalBytes: Long) {
+        val writtenMB = bytesWritten / (1024 * 1024)
+        val totalMB = totalBytes / (1024 * 1024)
+
+        // Intent to open the app
+        val openIntent = Intent(context, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
+        }
+        val openPendingIntent = PendingIntent.getActivity(
+            context,
+            2,
+            openIntent,
+            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
+        )
+
+        // Cancel action intent
+        val cancelIntent = Intent(context, CreateImgReceiver::class.java).apply {
+            action = ACTION_CANCEL_CREATE
+        }
+        val cancelPendingIntent = PendingIntent.getBroadcast(
+            context,
+            3,
+            cancelIntent,
+            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
+        )
+
+        val notification = NotificationCompat.Builder(context, CHANNEL_ID_PROGRESS)
+            .setSmallIcon(R.drawable.ic_notification)
+            .setContentTitle("Creating $fileName")
+            .setContentText("$writtenMB MB / $totalMB MB")
+            .setProgress(100, progress, false)
+            .setOngoing(true)
+            .setShowWhen(false)
+            .setContentIntent(openPendingIntent)
+            .addAction(
+                R.drawable.ic_eject,
+                "Cancel",
+                cancelPendingIntent
+            )
+            .setPriority(NotificationCompat.PRIORITY_LOW)
+            .setCategory(NotificationCompat.CATEGORY_PROGRESS)
+            .build()
+
+        notificationManager.notify(NOTIFICATION_ID_PROGRESS, notification)
+    }
+
+    fun showCreateCompleteNotification(fileName: String, success: Boolean) {
+        hideProgressNotification()
+
+        val notification = NotificationCompat.Builder(context, CHANNEL_ID_PROGRESS)
+            .setSmallIcon(R.drawable.ic_notification)
+            .setContentTitle(if (success) "Image Created" else "Creation Failed")
+            .setContentText(fileName)
+            .setAutoCancel(true)
+            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
+            .build()
+
+        notificationManager.notify(NOTIFICATION_ID_PROGRESS, notification)
+    }
+
+    fun hideProgressNotification() {
+        notificationManager.cancel(NOTIFICATION_ID_PROGRESS)
+    }
 }