Add flag to account for missing year for imported contact

- this avoids wrongly calculating the age/anniversary years when there was no year specified in the contact data

app/src/main/kotlin/com/simplemobiletools/calendar/pro/activities/MainActivity.kt

@@ -606,6 +606,7 @@ class MainActivity : SimpleActivity(), RefreshRecyclerViewListener {
         val selectionArgs = arrayOf(CommonDataKinds.Event.CONTENT_ITEM_TYPE, type.toString())
 
         val dateFormats = getDateFormats()
+        val yearDateFormats = getDateFormatsWithYear()
         val existingEvents = if (birthdays) eventsDB.getBirthdays() else eventsDB.getAnniversaries()
         val importIDs = HashMap<String, Long>()
         existingEvents.forEach {
@@ -624,15 +625,17 @@ class MainActivity : SimpleActivity(), RefreshRecyclerViewListener {
                 try {
                     val formatter = SimpleDateFormat(format, Locale.getDefault())
                     val date = formatter.parse(startDate)
-                    if (date.year < 70) {
-                        date.year = 70
+                    val flags = if(format in yearDateFormats){
+                        FLAG_ALL_DAY
+                    }else {
+                        FLAG_ALL_DAY or FLAG_MISSING_YEAR_EVENT
                     }
 
                     val timestamp = date.time / 1000L
                     val lastUpdated = cursor.getLongValue(CommonDataKinds.Event.CONTACT_LAST_UPDATED_TIMESTAMP)
                     val event = Event(
                         null, timestamp, timestamp, name, reminder1Minutes = reminders[0], reminder2Minutes = reminders[1],
-                        reminder3Minutes = reminders[2], importId = contactId, timeZone = DateTimeZone.getDefault().id, flags = FLAG_ALL_DAY,
+                        reminder3Minutes = reminders[2], importId = contactId, timeZone = DateTimeZone.getDefault().id, flags = flags,
                         repeatInterval = YEAR, repeatRule = REPEAT_SAME_DAY, eventType = eventTypeId, source = source, lastUpdated = lastUpdated
                     )
 

app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/Constants.kt

@@ -93,6 +93,7 @@ const val REPEAT_ORDER_WEEKDAY = 4                      // i.e. every 4th sunday
 // special event flags
 const val FLAG_ALL_DAY = 1
 const val FLAG_IS_PAST_EVENT = 2
+const val FLAG_MISSING_YEAR_EVENT = 4
 
 // constants related to ICS file exporting / importing
 const val BEGIN_CALENDAR = "BEGIN:VCALENDAR"
@@ -174,3 +175,13 @@ fun isWeekend(i: Int, isSundayFirst: Boolean): Boolean {
         i == 5 || i == 6 || i == 12 || i == 13
     }
 }
+
+fun getDateFormatsWithYear() = arrayListOf(
+    "yyyy-MM-dd",
+    "yyyyMMdd",
+    "yyyy.MM.dd",
+    "yy-MM-dd",
+    "yyMMdd",
+    "yy.MM.dd",
+    "yy/MM/dd",
+)

app/src/main/kotlin/com/simplemobiletools/calendar/pro/helpers/EventsHelper.kt

@@ -307,11 +307,12 @@ class EventsHelper(val context: Context) {
                 (anniversaryEventId != -1L && it.eventType == anniversaryEventId)){
                 val eventStartDate = Formatter.getDateFromTS(it.startTS)
                 val originalEventStartDate = Formatter.getDateFromTS(originalEvent.startTS)
-                val years = (eventStartDate.year - originalEventStartDate.year).coerceAtLeast(0)
-                if(years > 0){
-                    it.title = "${it.title} ($years)"
+                if(it.flags and FLAG_MISSING_YEAR_EVENT == 0){
+                    val years = (eventStartDate.year - originalEventStartDate.year).coerceAtLeast(0)
+                    if(years > 0){
+                        it.title = "${it.title} ($years)"
+                    }
                 }
-
             }
             it.color = eventTypeColors.get(it.eventType) ?: config.primaryColor
         }