80 lines
2.3 KiB
Swift
80 lines
2.3 KiB
Swift
//
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// DiscoveryPostsViewModel.swift
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// Mastodon
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//
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// Created by MainasuK on 2022-4-12.
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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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import MastodonCore
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final class DiscoveryPostsViewModel {
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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 authContext: AuthContext
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let statusFetchedResultsController: StatusFetchedResultsController
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let listBatchFetchViewModel = ListBatchFetchViewModel()
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// output
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var diffableDataSource: UITableViewDiffableDataSource<StatusSection, StatusItem>?
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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, authContext: AuthContext) {
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self.context = context
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self.authContext = authContext
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self.statusFetchedResultsController = StatusFetchedResultsController(
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managedObjectContext: context.managedObjectContext,
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domain: authContext.mastodonAuthenticationBox.domain,
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additionalTweetPredicate: nil
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)
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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 DiscoveryPostsViewModel {
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func checkServerEndpoint() async {
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do {
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_ = try await context.apiService.trendStatuses(
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domain: authContext.mastodonAuthenticationBox.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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