Swiftfin/Shared/ViewModels/ServerListViewModel.swift

//
// Swiftfin is subject to the terms of the Mozilla Public
// License, v2.0. If a copy of the MPL was not distributed with this
// file, you can obtain one at https://mozilla.org/MPL/2.0/.
//
// Copyright (c) 2022 Jellyfin & Jellyfin Contributors
//

import Foundation
import SwiftUI

class ServerListViewModel: ObservableObject {

    @Published
    var servers: [SwiftfinStore.State.Server] = []

    init() {

        // Oct. 15, 2021
        // This is a workaround since Stinsen doesn't have the ability to rebuild a root at the time of writing.
        // Feature request issue: https://github.com/rundfunk47/stinsen/issues/33
        // Go to each MainCoordinator and implement the rebuild of the root when receiving the notification
        Notifications[.didPurge].subscribe(self, selector: #selector(didPurge))
    }

    func fetchServers() {
        self.servers = SessionManager.main.fetchServers()
    }

    func userTextFor(server: SwiftfinStore.State.Server) -> String {
        if server.userIDs.count == 1 {
            return L10n.oneUser
        } else {
            return L10n.multipleUsers(server.userIDs.count)
        }
    }

    func remove(server: SwiftfinStore.State.Server) {
        SessionManager.main.delete(server: server)
        fetchServers()
    }

    @objc
    private func didPurge() {
        fetchServers()
    }
}