feat: full-text event search #33
@@ -329,7 +329,64 @@ class AndroidCalendarDataSource @Inject constructor(
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selection,
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arrayOf(like, like, like),
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CalendarContract.Events.DTSTART + " DESC",
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)?.use { c -> c.mapAllNotNull { CursorColumnReader(c).toSearchResult() } } ?: emptyList()
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)?.use { c ->
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val reader = CursorColumnReader(c)
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val out = ArrayList<EventInstance>(c.count)
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while (c.moveToNext()) {
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val base = reader.toSearchResult() ?: continue
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// A recurring master's DTSTART is the series start; show its
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// nearest occurrence instead so the date is the one the user
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// actually cares about (and sorting reflects it).
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val recurring = !reader.getString(SearchProjection.IDX_RRULE).isNullOrEmpty() ||
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!reader.getString(SearchProjection.IDX_RDATE).isNullOrEmpty()
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out += if (recurring) {
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nearestOccurrenceMillis(base.eventId)?.let { (begin, end) ->
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base.copy(
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start = begin.toKotlinInstantFromEpochMillis(),
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end = end.toKotlinInstantFromEpochMillis(),
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)
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} ?: base
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} else {
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base
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}
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}
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out
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} ?: emptyList()
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}
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/**
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* The occurrence of [eventId] nearest to now: the soonest upcoming one
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* within [OCCURRENCE_WINDOW_MILLIS] ahead, else the most recent past one
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* within the same window behind. Null when neither exists (e.g. a series
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* that only starts further out than the window) — the caller then keeps the
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* series-start DTSTART. Returns (begin, end) epoch millis.
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*/
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private fun nearestOccurrenceMillis(eventId: Long): Pair<Long, Long>? {
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val now = System.currentTimeMillis()
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return occurrenceInWindow(eventId, now, now + OCCURRENCE_WINDOW_MILLIS, soonestFirst = true)
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?: occurrenceInWindow(eventId, now - OCCURRENCE_WINDOW_MILLIS, now, soonestFirst = false)
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}
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private fun occurrenceInWindow(
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eventId: Long,
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beginMillis: Long,
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endMillis: Long,
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soonestFirst: Boolean,
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): Pair<Long, Long>? {
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val uri = CalendarContract.Instances.CONTENT_URI.buildUpon().apply {
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ContentUris.appendId(this, beginMillis)
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ContentUris.appendId(this, endMillis)
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}.build()
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val order = CalendarContract.Instances.BEGIN + if (soonestFirst) " ASC" else " DESC"
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return resolver.query(
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uri,
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arrayOf(CalendarContract.Instances.BEGIN, CalendarContract.Instances.END),
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"${CalendarContract.Instances.EVENT_ID} = ?",
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arrayOf(eventId.toString()),
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order,
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)?.use { c ->
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if (!c.moveToFirst()) null else c.getLong(0) to c.getLong(1)
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}
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}
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override fun eventDetail(eventId: Long): EventDetail? {
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@@ -989,5 +1046,12 @@ class AndroidCalendarDataSource @Inject constructor(
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* together (by account) in the filter sheet and calendar manager.
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*/
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const val LOCAL_ACCOUNT_NAME = "Calendula"
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/**
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* How far ahead/behind a search looks for a recurring event's nearest
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* occurrence (~2 years). Wide enough for everyday series; a series that
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* next fires beyond it falls back to its series-start date.
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*/
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const val OCCURRENCE_WINDOW_MILLIS = 2L * 365 * 24 * 60 * 60 * 1000
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}
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}
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@@ -157,6 +157,10 @@ internal object SearchProjection {
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CalendarContract.Events.EVENT_COLOR,
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CalendarContract.Events.CALENDAR_COLOR,
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CalendarContract.Events.EVENT_LOCATION,
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// Recurrence markers: a non-empty RRULE or RDATE means the result should
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// display its nearest occurrence, not the series-start DTSTART.
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CalendarContract.Events.RRULE,
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CalendarContract.Events.RDATE,
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)
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const val IDX_ID = 0
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@@ -169,6 +173,8 @@ internal object SearchProjection {
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const val IDX_EVENT_COLOR = 7
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const val IDX_CALENDAR_COLOR = 8
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const val IDX_LOCATION = 9
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const val IDX_RRULE = 10
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const val IDX_RDATE = 11
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}
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internal object AttendeeProjection {
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