2021-07-22 08:11:05 +00:00
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//
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// Copyright 2021 New Vector Ltd
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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/// View model used by `SpaceMenuViewController`
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class SpaceMenuViewModel: SpaceMenuViewModelType {
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// MARK: - Enum
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enum ActionId: String {
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case members = "members"
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case rooms = "rooms"
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case leave = "leave"
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}
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// MARK: - Properties
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weak var coordinatorDelegate: SpaceMenuModelViewModelCoordinatorDelegate?
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weak var viewDelegate: SpaceMenuViewModelViewDelegate?
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var menuItems: [SpaceMenuListItemViewData] = [
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SpaceMenuListItemViewData(actionId: ActionId.members.rawValue, style: .normal, title: VectorL10n.roomDetailsPeople, icon: UIImage(named: "space_menu_members")),
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2021-08-06 13:51:51 +00:00
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SpaceMenuListItemViewData(actionId: ActionId.rooms.rawValue, style: .normal, title: VectorL10n.spacesExploreRooms, icon: UIImage(named: "space_menu_rooms")),
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SpaceMenuListItemViewData(actionId: ActionId.leave.rawValue, style: .destructive, title: VectorL10n.leave, icon: UIImage(named: "space_menu_leave"))
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]
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2021-07-23 09:00:16 +00:00
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private let session: MXSession
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private let spaceId: String
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// MARK: - Setup
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init(session: MXSession, spaceId: String) {
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self.session = session
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self.spaceId = spaceId
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}
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// MARK: - Public
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func process(viewAction: SpaceMenuViewAction) {
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switch viewAction {
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case .dismiss:
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self.coordinatorDelegate?.spaceMenuViewModelDidDismiss(self)
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case .selectRow(at: let indexPath):
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self.processAction(with: menuItems[indexPath.row].actionId)
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case .leaveSpaceAndKeepRooms:
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self.leaveSpaceAndKeepRooms()
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case .leaveSpaceAndLeaveRooms:
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self.leaveSpaceAndLeaveAllRooms()
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}
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}
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// MARK: - Private
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private func processAction(with actionStringId: String) {
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let actionId = ActionId(rawValue: actionStringId)
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switch actionId {
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case .leave:
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self.leaveSpace()
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default:
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self.coordinatorDelegate?.spaceMenuViewModel(self, didSelectItemWithId: actionStringId)
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}
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}
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private func leaveSpace() {
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guard let space = self.session.spaceService.getSpace(withId: self.spaceId), let displayName = space.summary?.displayname else {
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return
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}
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var isAdmin = false
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if let roomState = space.room.dangerousSyncState, let powerLevels = roomState.powerLevels {
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let powerLevel = powerLevels.powerLevelOfUser(withUserID: self.session.myUserId)
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let roomPowerLevel = RoomPowerLevelHelper.roomPowerLevel(from: powerLevel)
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isAdmin = roomPowerLevel == .admin
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}
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .leaveOptions(displayName, isAdmin))
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}
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private func leaveSpaceAndKeepRooms() {
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guard let space = self.session.spaceService.getSpace(withId: self.spaceId) else {
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return
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}
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .loading)
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self.leaveSpace(space)
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}
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private func leaveSpaceAndLeaveAllRooms() {
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guard let space = self.session.spaceService.getSpace(withId: self.spaceId) else {
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return
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}
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .loading)
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let allRoomsAndSpaces = space.childRoomIds + space.childSpaces.map({ space in
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space.spaceId
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})
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self.leaveAllRooms(from: allRoomsAndSpaces, at: 0) { [weak self] error in
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guard let self = self else {
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return
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}
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2021-09-23 12:50:00 +00:00
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if let error = error {
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .loaded)
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .error(error))
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return
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}
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self.leaveSpace(space)
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}
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}
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private func leaveAllRooms(from roomIds: [String], at index: Int, completion: @escaping (_ error: Error?) -> Void) {
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guard index < roomIds.count, let room = self.session.room(withRoomId: roomIds[index]), !room.isDirect else {
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let nextIndex = index+1
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if nextIndex < roomIds.count {
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self.leaveAllRooms(from: roomIds, at: nextIndex, completion: completion)
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} else {
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completion(nil)
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}
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return
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}
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room.leave { [weak self] response in
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guard let self = self else {
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return
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}
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guard response.isSuccess else {
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completion(response.error)
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return
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}
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let nextIndex = index+1
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if nextIndex < roomIds.count {
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self.leaveAllRooms(from: roomIds, at: nextIndex, completion: completion)
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} else {
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completion(nil)
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}
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}
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}
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private func leaveSpace(_ space: MXSpace) {
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space.room.leave(completion: { [weak self] response in
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guard let self = self else {
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return
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}
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .loaded)
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if let error = response.error {
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self.viewDelegate?.spaceMenuViewModel(self, didUpdateViewState: .error(error))
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} else {
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self.process(viewAction: .dismiss)
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}
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})
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}
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}
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