BayernMessenger/vector/src/main/java/im/vector/riotredesign/features/home/room/list/RoomSummaryComparator.kt

70 lines
2.5 KiB
Kotlin

/*
* Copyright 2019 New Vector Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package im.vector.riotredesign.features.home.room.list
import im.vector.matrix.android.api.session.room.model.RoomSummary
class RoomSummaryComparator
: Comparator<RoomSummary> {
override fun compare(leftRoomSummary: RoomSummary?, rightRoomSummary: RoomSummary?): Int {
val retValue: Int
var leftHighlightCount = 0
var rightHighlightCount = 0
var leftNotificationCount = 0
var rightNotificationCount = 0
var rightTimestamp = 0L
var leftTimestamp = 0L
if (null != leftRoomSummary) {
leftHighlightCount = leftRoomSummary.highlightCount
leftNotificationCount = leftRoomSummary.notificationCount
leftTimestamp = leftRoomSummary.lastMessage?.originServerTs ?: 0
}
if (null != rightRoomSummary) {
rightHighlightCount = rightRoomSummary.highlightCount
rightNotificationCount = rightRoomSummary.notificationCount
rightTimestamp = rightRoomSummary.lastMessage?.originServerTs ?: 0
}
if (rightRoomSummary?.lastMessage == null) {
retValue = -1
} else if (leftRoomSummary?.lastMessage == null) {
retValue = 1
} else if (rightHighlightCount > 0 && leftHighlightCount == 0) {
retValue = 1
} else if (rightHighlightCount == 0 && leftHighlightCount > 0) {
retValue = -1
} else if (rightNotificationCount > 0 && leftNotificationCount == 0) {
retValue = 1
} else if (rightNotificationCount == 0 && leftNotificationCount > 0) {
retValue = -1
} else {
val deltaTimestamp = rightTimestamp - leftTimestamp
if (deltaTimestamp > 0) {
retValue = 1
} else if (deltaTimestamp < 0) {
retValue = -1
} else {
retValue = 0
}
}
return retValue
}
}