From b8f206e042638dc961518762b6022799b9a0bed5 Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Wed, 13 Mar 2019 16:30:35 +0100
Subject: [PATCH] handle adding attendees in caldav calendars

---
 .../calendar/pro/activities/EventActivity.kt  |  3 +-
 .../calendar/pro/helpers/CalDAVHelper.kt      | 31 +++++++++++++++++--
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt
index 35fb59513..fba374706 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/EventActivity.kt
@@ -5,6 +5,7 @@ import android.app.TimePickerDialog
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.provider.CalendarContract
 import android.text.method.LinkMovementMethod
 import android.view.Menu
 import android.view.MenuItem
@@ -1146,7 +1147,7 @@ class EventActivity : SimpleActivity() {
         val attendeeEmails = mAttendeeViews.map { it.value }.filter { it.isNotEmpty() }.toMutableList() as ArrayList<String>
         val attendees = ArrayList<Attendee>()
         attendeeEmails.mapTo(attendees) {
-            Attendee("", it, 0)
+            Attendee("", it, CalendarContract.Attendees.ATTENDEE_STATUS_INVITED)
         }
         return Gson().toJson(attendees)
     }
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/CalDAVHelper.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/CalDAVHelper.kt
index 81a1174f8..96c307d36 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/CalDAVHelper.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/CalDAVHelper.kt
@@ -9,6 +9,7 @@ import android.provider.CalendarContract
 import android.provider.CalendarContract.Reminders
 import android.util.SparseIntArray
 import com.google.gson.Gson
+import com.google.gson.reflect.TypeToken
 import com.simplemobiletools.calendar.pro.R
 import com.simplemobiletools.calendar.pro.extensions.*
 import com.simplemobiletools.calendar.pro.models.*
@@ -323,6 +324,7 @@ class CalDAVHelper(val context: Context) {
         event.importId = getCalDAVEventImportId(calendarId, eventRemoteID)
 
         setupCalDAVEventReminders(event)
+        setupCalDAVEventAttendees(event)
         setupCalDAVEventImportId(event)
         refreshCalDAVCalendar(event)
     }
@@ -337,11 +339,11 @@ class CalDAVHelper(val context: Context) {
         context.contentResolver.update(newUri, values, null, null)
 
         setupCalDAVEventReminders(event)
+        setupCalDAVEventAttendees(event)
         setupCalDAVEventImportId(event)
         refreshCalDAVCalendar(event)
     }
 
-    @SuppressLint("MissingPermission")
     private fun setupCalDAVEventReminders(event: Event) {
         clearEventReminders(event)
         event.getReminders().forEach {
@@ -359,6 +361,25 @@ class CalDAVHelper(val context: Context) {
         }
     }
 
+    private fun setupCalDAVEventAttendees(event: Event) {
+        clearEventAttendees(event)
+        val attendees = Gson().fromJson<ArrayList<Attendee>>(event.attendees, object : TypeToken<List<Attendee>>() {}.type) ?: ArrayList()
+        attendees.forEach {
+            val contentValues = ContentValues().apply {
+                put(CalendarContract.Attendees.ATTENDEE_NAME, it.name)
+                put(CalendarContract.Attendees.ATTENDEE_EMAIL, it.email)
+                put(CalendarContract.Attendees.ATTENDEE_STATUS, CalendarContract.Attendees.ATTENDEE_STATUS_ACCEPTED)
+                put(CalendarContract.Attendees.EVENT_ID, event.getCalDAVEventId())
+            }
+
+            try {
+                context.contentResolver.insert(CalendarContract.Attendees.CONTENT_URI, contentValues)
+            } catch (e: Exception) {
+                context.toast(R.string.unknown_error_occurred)
+            }
+        }
+    }
+
     private fun setupCalDAVEventImportId(event: Event) {
         context.eventsDB.updateEventImportIdAndSource(event.importId, "$CALDAV-${event.getCalDAVCalendarId()}", event.id!!)
     }
@@ -394,13 +415,18 @@ class CalDAVHelper(val context: Context) {
         }
     }
 
-    @SuppressLint("MissingPermission")
     private fun clearEventReminders(event: Event) {
         val selection = "${Reminders.EVENT_ID} = ?"
         val selectionArgs = arrayOf(event.getCalDAVEventId().toString())
         context.contentResolver.delete(Reminders.CONTENT_URI, selection, selectionArgs)
     }
 
+    private fun clearEventAttendees(event: Event) {
+        val selection = "${CalendarContract.Attendees.EVENT_ID} = ?"
+        val selectionArgs = arrayOf(event.getCalDAVEventId().toString())
+        context.contentResolver.delete(CalendarContract.Attendees.CONTENT_URI, selection, selectionArgs)
+    }
+
     private fun getDurationCode(event: Event): String {
         return if (event.getIsAllDay()) {
             val dur = Math.max(1, (event.endTS - event.startTS) / DAY)
@@ -425,7 +451,6 @@ class CalDAVHelper(val context: Context) {
         refreshCalDAVCalendar(event)
     }
 
-    @SuppressLint("MissingPermission")
     fun insertEventRepeatException(event: Event, occurrenceTS: Long): Long {
         val uri = CalendarContract.Events.CONTENT_URI
         val values = fillEventRepeatExceptionValues(event, occurrenceTS)