75 lines
2.0 KiB
Swift
75 lines
2.0 KiB
Swift
//
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// DiscoveryNewsViewModel.swift
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// Mastodon
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//
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// Created by MainasuK on 2022-4-13.
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//
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import os.log
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import UIKit
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import Combine
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import GameplayKit
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import CoreData
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import CoreDataStack
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import MastodonSDK
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final class DiscoveryNewsViewModel {
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var disposeBag = Set<AnyCancellable>()
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// input
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let context: AppContext
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let listBatchFetchViewModel = ListBatchFetchViewModel()
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// output
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@Published var links: [Mastodon.Entity.Link] = []
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var diffableDataSource: UITableViewDiffableDataSource<DiscoverySection, DiscoveryItem>?
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private(set) lazy var stateMachine: GKStateMachine = {
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let stateMachine = GKStateMachine(states: [
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State.Initial(viewModel: self),
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State.Reloading(viewModel: self),
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State.Fail(viewModel: self),
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State.Idle(viewModel: self),
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State.Loading(viewModel: self),
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State.NoMore(viewModel: self),
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])
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stateMachine.enter(State.Initial.self)
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return stateMachine
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}()
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let didLoadLatest = PassthroughSubject<Void, Never>()
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@Published var isServerSupportEndpoint = true
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init(context: AppContext) {
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self.context = context
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// end init
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Task {
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await checkServerEndpoint()
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} // end Task
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}
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deinit {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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}
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}
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extension DiscoveryNewsViewModel {
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func checkServerEndpoint() async {
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guard let authenticationBox = context.authenticationService.activeMastodonAuthenticationBox.value else { return }
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do {
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_ = try await context.apiService.trendLinks(
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domain: authenticationBox.domain,
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query: .init(offset: nil, limit: nil)
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)
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} catch let error as Mastodon.API.Error where error.httpResponseStatus.code == 404 {
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isServerSupportEndpoint = false
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} catch {
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// do nothing
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}
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}
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}
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