mirror of
https://github.com/vector-im/element-ios.git
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86 lines
3.3 KiB
Swift
86 lines
3.3 KiB
Swift
/*
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Copyright 2019 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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@objc final class ReactionsMenuViewModel: NSObject, ReactionsMenuViewModelType {
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// MARK: - Properties
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private let reactions = ["👍", "👎", "😄", "🎉", "😕", "❤️", "🚀", "👀"]
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private var currentViewDatas: [ReactionMenuItemViewData] = []
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// MARK: Private
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private let aggregatedReactions: MXAggregatedReactions?
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private let reactionsViewData: [ReactionMenuItemViewData] = []
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private let eventId: String
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// MARK: Public
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@objc weak var coordinatorDelegate: ReactionsMenuViewModelCoordinatorDelegate?
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weak var viewDelegate: ReactionsMenuViewModelViewDelegate?
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// MARK: - Setup
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@objc init(aggregatedReactions: MXAggregatedReactions?,
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eventId: String) {
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self.aggregatedReactions = aggregatedReactions
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self.eventId = eventId
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}
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// MARK: - Public
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func process(viewAction: ReactionsMenuViewAction) {
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switch viewAction {
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case .loadData:
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self.loadData()
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case .tap(let reaction):
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if let viewData = self.currentViewDatas.first(where: { $0.emoji == reaction }) {
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if viewData.isSelected {
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self.coordinatorDelegate?.reactionsMenuViewModel(self, didRemoveReaction: reaction, forEventId: self.eventId)
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} else {
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self.coordinatorDelegate?.reactionsMenuViewModel(self, didAddReaction: reaction, forEventId: self.eventId)
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}
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}
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case .moreReactions:
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self.coordinatorDelegate?.reactionsMenuViewModelDidTapMoreReactions(self, forEventId: self.eventId)
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}
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}
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// MARK: - Private
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private func loadData() {
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let reactionCounts = self.aggregatedReactions?.withNonZeroCount()?.reactions ?? []
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var quickReactionsWithUserReactedFlag: [String: Bool] = Dictionary(uniqueKeysWithValues: self.reactions.map { ($0, false) })
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reactionCounts.forEach { (reactionCount) in
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if let hasUserReacted = quickReactionsWithUserReactedFlag[reactionCount.reaction], hasUserReacted == false {
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quickReactionsWithUserReactedFlag[reactionCount.reaction] = reactionCount.myUserHasReacted
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}
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}
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let reactionMenuItemViewDatas: [ReactionMenuItemViewData] = self.reactions.map { reaction -> ReactionMenuItemViewData in
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let isSelected = quickReactionsWithUserReactedFlag[reaction] ?? false
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return ReactionMenuItemViewData(emoji: reaction, isSelected: isSelected)
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}
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self.currentViewDatas = reactionMenuItemViewDatas
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self.viewDelegate?.reactionsMenuViewModel(self, didUpdateViewState: ReactionsMenuViewState.loaded(reactionsViewData: reactionMenuItemViewDatas))
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}
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}
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