97 lines
3.6 KiB
Swift
97 lines
3.6 KiB
Swift
//
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// NotificationViewModel+LoadLatestState.swift
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// Mastodon
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//
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// Created by sxiaojian on 2021/4/13.
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//
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import os.log
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import func QuartzCore.CACurrentMediaTime
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import Foundation
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import CoreData
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import CoreDataStack
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import GameplayKit
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import MastodonSDK
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extension NotificationViewModel {
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class LoadLatestState: GKState {
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weak var viewModel: NotificationViewModel?
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init(viewModel: NotificationViewModel) {
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self.viewModel = viewModel
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}
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override func didEnter(from previousState: GKState?) {
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os_log("%{public}s[%{public}ld], %{public}s: enter %s, previous: %s", ((#file as NSString).lastPathComponent), #line, #function, self.debugDescription, previousState.debugDescription)
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viewModel?.loadLatestStateMachinePublisher.send(self)
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}
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}
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}
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extension NotificationViewModel.LoadLatestState {
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class Initial: NotificationViewModel.LoadLatestState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return stateClass == Loading.self
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}
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}
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class Loading: NotificationViewModel.LoadLatestState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return stateClass == Fail.self || stateClass == Idle.self
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}
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override func didEnter(from previousState: GKState?) {
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super.didEnter(from: previousState)
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guard let viewModel = viewModel, let stateMachine = stateMachine else { return }
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guard let activeMastodonAuthenticationBox = viewModel.activeMastodonAuthenticationBox.value else {
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// sign out when loading will enter here
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stateMachine.enter(Fail.self)
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return
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}
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let query = Mastodon.API.Notifications.Query(
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maxID: nil,
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sinceID: nil,
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minID: nil,
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limit: nil,
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excludeTypes: Mastodon.API.Notifications.allExcludeTypes(),
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accountID: nil)
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viewModel.context.apiService.allNotifications(
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domain: activeMastodonAuthenticationBox.domain,
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query: query,
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mastodonAuthenticationBox: activeMastodonAuthenticationBox)
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.sink { completion in
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switch completion {
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case .failure(let error):
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viewModel.isFetchingLatestNotification.value = false
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: fetch notification failed. %s", ((#file as NSString).lastPathComponent), #line, #function, error.localizedDescription)
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case .finished:
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// handle isFetchingLatestTimeline in fetch controller delegate
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break
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}
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stateMachine.enter(Idle.self)
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} receiveValue: { response in
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if response.value.isEmpty {
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viewModel.isFetchingLatestNotification.value = false
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}
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}
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.store(in: &viewModel.disposeBag)
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}
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}
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class Fail: NotificationViewModel.LoadLatestState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return stateClass == Loading.self || stateClass == Idle.self
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}
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}
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class Idle: NotificationViewModel.LoadLatestState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return stateClass == Loading.self
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}
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}
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}
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