element-x-ios/ElementX/Sources/Screens/SpaceListScreen/SpaceListScreenViewModel.swift

//
// Copyright 2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
// Please see LICENSE files in the repository root for full details.
//

import Combine
import SwiftUI

typealias SpaceListScreenViewModelType = StateStoreViewModelV2<SpaceListScreenViewState, SpaceListScreenViewAction>

class SpaceListScreenViewModel: SpaceListScreenViewModelType, SpaceListScreenViewModelProtocol {
    private let actionsSubject: PassthroughSubject<SpaceListScreenViewModelAction, Never> = .init()
    var actionsPublisher: AnyPublisher<SpaceListScreenViewModelAction, Never> {
        actionsSubject.eraseToAnyPublisher()
    }

    init(userSession: UserSessionProtocol) {
        super.init(initialViewState: SpaceListScreenViewState(userID: userSession.clientProxy.userID,
                                                              rooms: [],
                                                              joinedRoomsCount: 0,
                                                              bindings: .init()),
                   mediaProvider: userSession.mediaProvider)
        
        userSession.clientProxy.userAvatarURLPublisher
            .receive(on: DispatchQueue.main)
            .weakAssign(to: \.state.userAvatarURL, on: self)
            .store(in: &cancellables)
        
        userSession.clientProxy.userDisplayNamePublisher
            .receive(on: DispatchQueue.main)
            .weakAssign(to: \.state.userDisplayName, on: self)
            .store(in: &cancellables)
    }
    
    // MARK: - Public
    
    override func process(viewAction: SpaceListScreenViewAction) {
        MXLog.info("View model: received view action: \(viewAction)")
        
        switch viewAction {
        case .showSettings:
            actionsSubject.send(.showSettings)
        }
    }
}