Create shared circles data source

core/src/main/java/org/futo/circles/core/workspace/SharedCircleDataSource.kt

+package org.futo.circles.core.workspace
+
+import org.futo.circles.core.extensions.getRoomOwners
+import org.futo.circles.core.model.PROFILE_SPACE_ACCOUNT_DATA_KEY
+import org.futo.circles.core.provider.MatrixSessionProvider
+import org.futo.circles.core.room.RoomRelationsBuilder
+import org.futo.circles.core.utils.getTimelineRoomFor
+import org.matrix.android.sdk.api.session.getRoomSummary
+import org.matrix.android.sdk.api.session.room.model.Membership
+import org.matrix.android.sdk.api.session.room.model.RoomType
+import org.matrix.android.sdk.api.session.room.roomSummaryQueryParams
+import javax.inject.Inject
+
+class SharedCircleDataSource @Inject constructor(
+    private val spacesTreeAccountDataSource: SpacesTreeAccountDataSource,
+    private val roomRelationsBuilder: RoomRelationsBuilder
+) {
+
+    fun getSharedCirclesSpaceId() =
+        spacesTreeAccountDataSource.getRoomIdByKey(PROFILE_SPACE_ACCOUNT_DATA_KEY)
+
+    suspend fun addToSharedCircles(timelineId: String) {
+        getSharedCirclesSpaceId()?.let { roomRelationsBuilder.setRelations(timelineId, it) }
+    }
+
+    suspend fun removeFromSharedCircles(timelineId: String) {
+        getSharedCirclesSpaceId()?.let { roomRelationsBuilder.removeRelations(timelineId, it) }
+    }
+
+    fun getSharedCircleFor(userId: String) = MatrixSessionProvider.currentSession?.roomService()
+        ?.getRoomSummaries(roomSummaryQueryParams { excludeType = null })?.firstOrNull { summary ->
+            summary.roomType == RoomType.SPACE && summary.membership == Membership.JOIN &&
+                    getRoomOwners(summary.roomId).map { it.userId }.contains(userId)
+        }
+
+    fun isCircleShared(circleId: String): Boolean {
+        val timelineId = getTimelineRoomFor(circleId)?.roomId
+        val sharedCirclesTimelinesIds = getSharedCirclesSpaceId()?.let {
+            MatrixSessionProvider.currentSession?.getRoomSummary(it)?.spaceChildren?.map { it.childRoomId }
+        } ?: emptyList()
+        return sharedCirclesTimelinesIds.contains(timelineId)
+    }
+}
\ No newline at end of file