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60 lines
2.5 KiB
Swift
60 lines
2.5 KiB
Swift
/*
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Copyright 2020 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Foundation
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/// `BubbleReactionsViewModelBuilder` enables to build a BubbleReactionsViewModel for a given `RoomBubbleCellData` and `MXKRoomBubbleComponent` index.
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@objcMembers
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final class BubbleReactionsViewModelBuilder: NSObject {
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func buildForFirstVisibleComponent(of roomBubbleCellData: RoomBubbleCellData) -> BubbleReactionsViewModel? {
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guard roomBubbleCellData.firstVisibleComponentIndex() != NSNotFound else {
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return nil
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}
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return self.build(from: roomBubbleCellData, componentIndex: roomBubbleCellData.firstVisibleComponentIndex())
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}
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func build(from roomBubbleCellData: RoomBubbleCellData, componentIndex: Int) -> BubbleReactionsViewModel? {
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let isCollapsableCellCollapsed = roomBubbleCellData.collapsable && roomBubbleCellData.collapsed
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guard isCollapsableCellCollapsed == false else {
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return nil
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}
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guard let bubbleComponents = roomBubbleCellData.bubbleComponents, componentIndex < roomBubbleCellData.bubbleComponents.count else {
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return nil
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}
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let bubbleComponent: MXKRoomBubbleComponent = bubbleComponents[componentIndex]
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guard let bubbleComponentEvent = bubbleComponent.event,
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bubbleComponentEvent.isRedactedEvent() == false,
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let componentEventId = bubbleComponentEvent.eventId,
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let cellDataReactions = roomBubbleCellData.reactions,
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let componentReactions = cellDataReactions[componentEventId] as? MXAggregatedReactions,
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let aggregatedReactions = componentReactions.withNonZeroCount() else {
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return nil
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}
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let showAllReactions = roomBubbleCellData.showAllReactions(forEvent: componentEventId)
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return BubbleReactionsViewModel(aggregatedReactions: aggregatedReactions,
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eventId: componentEventId,
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showAll: showAllReactions)
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}
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}
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