From e718c022756c8e2f14c7ed03ce3839001ed3dcbb Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Sun, 20 Aug 2017 18:38:33 +0200
Subject: [PATCH] delete invalid caldav events at sync

---
 .../calendar/helpers/CalDAVEventsHandler.kt      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/CalDAVEventsHandler.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/CalDAVEventsHandler.kt
index 71fb2bd87..55287c3a2 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/CalDAVEventsHandler.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/helpers/CalDAVEventsHandler.kt
@@ -55,6 +55,7 @@ class CalDAVEventsHandler(val context: Context) {
 
     fun fetchCalDAVCalendarEvents(calendarId: Int, eventTypeId: Int) {
         val importIdsMap = HashMap<String, Event>()
+        val fetchedEventIds = ArrayList<String>()
         val existingEvents = context.dbHelper.getEventsFromCalDAVCalendar(calendarId)
         existingEvents.forEach {
             importIdsMap.put(it.importId, it)
@@ -101,6 +102,7 @@ class CalDAVEventsHandler(val context: Context) {
                         event.endTS -= DAY
                     }
 
+                    fetchedEventIds.add(importId)
                     if (importIdsMap.containsKey(event.importId)) {
                         val existingEvent = importIdsMap[importId]
                         val originalEventId = existingEvent!!.id
@@ -120,6 +122,20 @@ class CalDAVEventsHandler(val context: Context) {
         } finally {
             cursor?.close()
         }
+
+        val eventIdsToDelete = ArrayList<String>()
+        importIdsMap.keys.filter { !fetchedEventIds.contains(it) }.forEach {
+            val caldavEventId = it
+            existingEvents.forEach {
+                if (it.importId == caldavEventId) {
+                    eventIdsToDelete.add(it.id.toString())
+                }
+            }
+        }
+
+        eventIdsToDelete.forEach {
+            context.dbHelper.deleteEvents(eventIdsToDelete.toTypedArray(), false)
+        }
     }
 
     fun addCalDAVEvent(event: Event) {