move the notification showing related things into context extensions

app/src/main/kotlin/com/simplemobiletools/calendar/extensions/Context.kt

@@ -1,12 +1,15 @@
 package com.simplemobiletools.calendar.extensions
 
 import android.app.AlarmManager
+import android.app.Notification
+import android.app.NotificationManager
 import android.app.PendingIntent
 import android.appwidget.AppWidgetManager
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.graphics.Color
+import android.net.Uri
 import android.os.Build
 import android.os.SystemClock
 import com.simplemobiletools.calendar.R
@@ -149,6 +152,40 @@ fun Context.getFilteredEvents(events: List<Event>): List<Event> {
     return events.filter { displayEventTypes.contains(it.eventType.toString()) }
 }
 
+fun Context.notifyEvent(event: Event) {
+    val pendingIntent = getPendingIntent(this, event)
+    val startTime = Formatter.getTimeFromTS(this, event.startTS)
+    val endTime = Formatter.getTimeFromTS(this, event.endTS)
+    val notification = getNotification(this, pendingIntent, event.title, "${getFormattedEventTime(startTime, endTime)} ${event.description}")
+    val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+    notificationManager.notify(event.id, notification)
+}
+
+private fun getNotification(context: Context, pendingIntent: PendingIntent, title: String, content: String): Notification {
+    val soundUri = Uri.parse(context.config.reminderSound)
+    val builder = Notification.Builder(context)
+            .setContentTitle(title)
+            .setContentText(content)
+            .setSmallIcon(R.drawable.ic_calendar)
+            .setContentIntent(pendingIntent)
+            .setDefaults(Notification.DEFAULT_LIGHTS)
+            .setAutoCancel(true)
+            .setSound(soundUri)
+
+    if (context.config.vibrateOnReminder)
+        builder.setVibrate(longArrayOf(0, 300, 300, 300))
+
+    return builder.build()
+}
+
+private fun getFormattedEventTime(startTime: String, endTime: String) = if (startTime == endTime) startTime else "$startTime - $endTime"
+
+private fun getPendingIntent(context: Context, event: Event): PendingIntent {
+    val intent = Intent(context, EventActivity::class.java)
+    intent.putExtra(EVENT_ID, event.id)
+    return PendingIntent.getActivity(context, event.id, intent, PendingIntent.FLAG_UPDATE_CURRENT)
+}
+
 fun Context.launchNewEventIntent(startNewTask: Boolean = false, today: Boolean = false) {
     val code = Formatter.getDayCodeFromDateTime(DateTime(DateTimeZone.getDefault()).plusDays(if (today) 0 else 1))
     Intent(applicationContext, EventActivity::class.java).apply {

app/src/main/kotlin/com/simplemobiletools/calendar/receivers/NotificationReceiver.kt

@@ -1,26 +1,17 @@
 package com.simplemobiletools.calendar.receivers
 
-import android.app.Notification
-import android.app.NotificationManager
-import android.app.PendingIntent
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
-import android.net.Uri
-import com.simplemobiletools.calendar.R
-import com.simplemobiletools.calendar.activities.EventActivity
-import com.simplemobiletools.calendar.extensions.config
 import com.simplemobiletools.calendar.extensions.dbHelper
+import com.simplemobiletools.calendar.extensions.notifyEvent
 import com.simplemobiletools.calendar.extensions.scheduleNextEventReminder
 import com.simplemobiletools.calendar.extensions.updateListWidget
 import com.simplemobiletools.calendar.helpers.EVENT_ID
-import com.simplemobiletools.calendar.helpers.Formatter
-import com.simplemobiletools.calendar.models.Event
 
 class NotificationReceiver : BroadcastReceiver() {
     override fun onReceive(context: Context, intent: Intent) {
         context.updateListWidget()
-        val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
         val id = intent.getIntExtra(EVENT_ID, -1)
         if (id == -1)
             return
@@ -29,38 +20,9 @@ class NotificationReceiver : BroadcastReceiver() {
         if (event == null || event.getReminders().isEmpty())
             return
 
-        val pendingIntent = getPendingIntent(context, event)
-        val startTime = Formatter.getTimeFromTS(context, event.startTS)
-        val endTime = Formatter.getTimeFromTS(context, event.endTS)
         if (!event.ignoreEventOccurrences.contains(event.startTS)) {
-            val notification = getNotification(context, pendingIntent, event.title, "${getEventTime(startTime, endTime)} ${event.description}")
+            context.notifyEvent(event)
-            notificationManager.notify(id, notification)
         }
         context.scheduleNextEventReminder(event)
     }
-
-    private fun getEventTime(startTime: String, endTime: String) = if (startTime == endTime) startTime else "$startTime - $endTime"
-
-    private fun getPendingIntent(context: Context, event: Event): PendingIntent {
-        val intent = Intent(context, EventActivity::class.java)
-        intent.putExtra(EVENT_ID, event.id)
-        return PendingIntent.getActivity(context, event.id, intent, PendingIntent.FLAG_UPDATE_CURRENT)
-    }
-
-    private fun getNotification(context: Context, pendingIntent: PendingIntent, title: String, content: String): Notification {
-        val soundUri = Uri.parse(context.config.reminderSound)
-        val builder = Notification.Builder(context)
-                .setContentTitle(title)
-                .setContentText(content)
-                .setSmallIcon(R.drawable.ic_calendar)
-                .setContentIntent(pendingIntent)
-                .setDefaults(Notification.DEFAULT_LIGHTS)
-                .setAutoCancel(true)
-                .setSound(soundUri)
-
-        if (context.config.vibrateOnReminder)
-            builder.setVibrate(longArrayOf(0, 300, 300, 300))
-
-        return builder.build()
-    }
 }