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diff --git a/src/com/android/calendar/alerts/AlertUtils.kt b/src/com/android/calendar/alerts/AlertUtils.kt
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+++ b/src/com/android/calendar/alerts/AlertUtils.kt
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+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * 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 com.android.calendar.alerts
+
+import android.app.AlarmManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.provider.CalendarContract
+import com.android.calendar.EventInfoActivity
+import com.android.calendar.Utils
+
+object AlertUtils {
+    private const val TAG = "AlertUtils"
+    const val DEBUG = true
+    const val SNOOZE_DELAY = 5 * 60 * 1000L
+
+    // We use one notification id for the expired events notification.  All
+    // other notifications (the 'active' future/concurrent ones) use a unique ID.
+    const val EXPIRED_GROUP_NOTIFICATION_ID = 0
+    const val EVENT_ID_KEY = "eventid"
+    const val EVENT_START_KEY = "eventstart"
+    const val EVENT_END_KEY = "eventend"
+    const val NOTIFICATION_ID_KEY = "notificationid"
+    const val EVENT_IDS_KEY = "eventids"
+    const val EVENT_STARTS_KEY = "starts"
+
+    // A flag for using local storage to save alert state instead of the alerts DB table.
+    // This allows the unbundled app to run alongside other calendar apps without eating
+    // alerts from other apps.
+    var BYPASS_DB = true
+
+    /**
+     * Creates an AlarmManagerInterface that wraps a real AlarmManager.  The alarm code
+     * was abstracted to an interface to make it testable.
+     */
+    @JvmStatic fun createAlarmManager(context: Context): AlarmManagerInterface {
+        val mgr: AlarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager
+        return object : AlarmManagerInterface {
+            override operator fun set(type: Int, triggerAtMillis: Long, operation: PendingIntent?) {
+                if (com.android.calendar.Utils.isKeyLimePieOrLater()) {
+                    mgr.setExact(type, triggerAtMillis, operation)
+                } else {
+                    mgr.set(type, triggerAtMillis, operation)
+                }
+            }
+        }
+    }
+
+    /**
+     * Schedules an alarm intent with the system AlarmManager that will notify
+     * listeners when a reminder should be fired. The provider will keep
+     * scheduled reminders up to date but apps may use this to implement snooze
+     * functionality without modifying the reminders table. Scheduled alarms
+     * will generate an intent using AlertReceiver.EVENT_REMINDER_APP_ACTION.
+     *
+     * @param context A context for referencing system resources
+     * @param manager The AlarmManager to use or null
+     * @param alarmTime The time to fire the intent in UTC millis since epoch
+     */
+    @JvmStatic fun scheduleAlarm(
+        context: Context?,
+        manager: AlarmManagerInterface?,
+        alarmTime: Long
+    ) {
+    }
+
+    @JvmStatic fun buildEventViewIntent(c: Context, eventId: Long, begin: Long, end: Long): Intent {
+        val i = Intent(Intent.ACTION_VIEW)
+        val builder: Uri.Builder = CalendarContract.CONTENT_URI.buildUpon()
+        builder.appendEncodedPath("events/$eventId")
+        i.setData(builder.build())
+        i.setClass(c, EventInfoActivity::class.java)
+        i.putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, begin)
+        i.putExtra(CalendarContract.EXTRA_EVENT_END_TIME, end)
+        return i
+    }
+}