94 lines
3.3 KiB
Swift
94 lines
3.3 KiB
Swift
//
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// MastodonPickServerViewModel+LoadIndexedServerState.swift
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// Mastodon
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//
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// Created by Cirno MainasuK on 2021/3/5.
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//
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import os.log
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import Foundation
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import GameplayKit
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import MastodonSDK
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extension MastodonPickServerViewModel {
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class LoadIndexedServerState: GKState {
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weak var viewModel: MastodonPickServerViewModel?
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init(viewModel: MastodonPickServerViewModel) {
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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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}
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}
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}
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extension MastodonPickServerViewModel.LoadIndexedServerState {
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class Initial: MastodonPickServerViewModel.LoadIndexedServerState {
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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: MastodonPickServerViewModel.LoadIndexedServerState {
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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 = self.viewModel, let stateMachine = self.stateMachine else { return }
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viewModel.isLoadingIndexedServers.value = true
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viewModel.context.apiService.servers(language: nil, category: nil)
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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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// TODO: handle error
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stateMachine.enter(Fail.self)
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viewModel.loadingIndexedServersError.value = error
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case .finished:
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break
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}
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} receiveValue: { [weak self] response in
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guard let _ = self else { return }
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stateMachine.enter(Idle.self)
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viewModel.indexedServers.value = response.value
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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: MastodonPickServerViewModel.LoadIndexedServerState {
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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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override func didEnter(from previousState: GKState?) {
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super.didEnter(from: previousState)
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guard let stateMachine = self.stateMachine else { return }
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DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
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guard let _ = self else { return }
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stateMachine.enter(Loading.self)
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}
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}
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}
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class Idle: MastodonPickServerViewModel.LoadIndexedServerState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return false
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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 = self.viewModel else { return }
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viewModel.isLoadingIndexedServers.value = false
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}
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}
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}
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