c29f4cc9b4
* New LICENSE-COMMERCIAL file * Apply dual licenses: AGPL + Element Commercial to file headers * Update README with dual licensing
109 lines
3.9 KiB
Swift
109 lines
3.9 KiB
Swift
//
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// Copyright 2022-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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// Please see LICENSE files in the repository root for full details.
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//
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import Combine
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import SwiftUI
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typealias RoomDirectorySearchScreenViewModelType = StateStoreViewModel<RoomDirectorySearchScreenViewState, RoomDirectorySearchScreenViewAction>
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class RoomDirectorySearchScreenViewModel: RoomDirectorySearchScreenViewModelType, RoomDirectorySearchScreenViewModelProtocol {
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private let roomDirectorySearchProxy: RoomDirectorySearchProxyProtocol
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private let userIndicatorController: UserIndicatorControllerProtocol
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private let actionsSubject: PassthroughSubject<RoomDirectorySearchScreenViewModelAction, Never> = .init()
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var actionsPublisher: AnyPublisher<RoomDirectorySearchScreenViewModelAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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init(clientProxy: ClientProxyProtocol,
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userIndicatorController: UserIndicatorControllerProtocol,
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mediaProvider: MediaProviderProtocol) {
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roomDirectorySearchProxy = clientProxy.roomDirectorySearchProxy()
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self.userIndicatorController = userIndicatorController
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super.init(initialViewState: RoomDirectorySearchScreenViewState(), mediaProvider: mediaProvider)
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state.rooms = roomDirectorySearchProxy.resultsPublisher.value
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roomDirectorySearchProxy.resultsPublisher
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.receive(on: DispatchQueue.main)
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.weakAssign(to: \.state.rooms, on: self)
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.store(in: &cancellables)
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context.$viewState.map(\.bindings.searchString)
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// only listen to the search string when is not loading
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.combineLatest(context.$viewState.map(\.isLoading)
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.filter { $0 == false })
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.map(\.0)
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.debounceTextQueriesAndRemoveDuplicates()
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.sink { [weak self] query in
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self?.search(query: query)
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}
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.store(in: &cancellables)
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}
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// MARK: - Public
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override func process(viewAction: RoomDirectorySearchScreenViewAction) {
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MXLog.info("View model: received view action: \(viewAction)")
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switch viewAction {
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case .dismiss:
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actionsSubject.send(.dismiss)
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case .select(let room):
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if let alias = room.alias {
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actionsSubject.send(.selectAlias(alias))
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} else {
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actionsSubject.send(.selectRoomID(room.id))
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}
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case .reachedBottom:
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loadNextPage()
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}
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}
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// MARK: - Private
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private static let errorID = "roomDirectorySearchViewModelLoadingError"
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private func search(query: String?) {
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guard !state.isLoading else {
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return
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}
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state.rooms = []
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state.isLoading = true
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Task {
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switch await roomDirectorySearchProxy.search(query: query) {
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case .success:
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break
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case .failure:
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userIndicatorController.submitIndicator(UserIndicator(id: Self.errorID,
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type: .toast,
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title: L10n.screenRoomDirectorySearchLoadingError,
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iconName: "xmark"))
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}
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// Add a small delay to allow the rooms to be published,
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// otherwise you see the No Results text briefly.
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try? await Task.sleep(for: .milliseconds(50))
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state.isLoading = false
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}
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}
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private func loadNextPage() {
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guard !state.isLoading else {
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return
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}
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Task {
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state.isLoading = true
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let _ = await roomDirectorySearchProxy.nextPage()
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state.isLoading = false
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}
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}
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}
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