forked from zelo72/mastodon-ios
121 lines
4.7 KiB
Swift
121 lines
4.7 KiB
Swift
//
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// MastodonAttachmentService+UploadState.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-3-18.
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//
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import os.log
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import Foundation
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import Combine
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import GameplayKit
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import MastodonSDK
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extension MastodonAttachmentService {
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class UploadState: GKState {
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weak var service: MastodonAttachmentService?
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init(service: MastodonAttachmentService) {
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self.service = service
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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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service?.uploadStateMachineSubject.send(self)
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}
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}
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}
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extension MastodonAttachmentService.UploadState {
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class Initial: MastodonAttachmentService.UploadState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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guard service?.authenticationBox != nil else { return false }
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if stateClass == Initial.self {
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return true
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}
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if service?.file.value != nil {
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return stateClass == Uploading.self
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} else {
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return stateClass == Fail.self
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}
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}
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}
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class Uploading: MastodonAttachmentService.UploadState {
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var needsFallback = false
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return stateClass == Fail.self || stateClass == Finish.self || stateClass == Uploading.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 service = service, let stateMachine = stateMachine else { return }
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guard let authenticationBox = service.authenticationBox else { return }
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guard let file = service.file.value else { return }
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let description = service.description.value
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let query = Mastodon.API.Media.UploadMediaQuery(
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file: file,
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thumbnail: nil,
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description: description,
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focus: nil
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)
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// and needs clone the `query` if needs retry
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service.context.apiService.uploadMedia(
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domain: authenticationBox.domain,
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query: query,
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mastodonAuthenticationBox: authenticationBox,
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needsFallback: needsFallback
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)
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.receive(on: DispatchQueue.main)
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.sink { [weak self] completion in
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guard let self = self else { return }
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switch completion {
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case .failure(let error):
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if let apiError = error as? Mastodon.API.Error,
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apiError.httpResponseStatus == .notFound,
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self.needsFallback == false
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{
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self.needsFallback = true
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stateMachine.enter(Uploading.self)
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: upload attachment fallback to V1", ((#file as NSString).lastPathComponent), #line, #function)
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} else {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: upload attachment fail: %s", ((#file as NSString).lastPathComponent), #line, #function, error.localizedDescription)
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service.error.send(error)
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stateMachine.enter(Fail.self)
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}
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case .finished:
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: upload attachment success", ((#file as NSString).lastPathComponent), #line, #function)
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break
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}
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} receiveValue: { response in
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: upload attachment %s success: %s", ((#file as NSString).lastPathComponent), #line, #function, response.value.id, response.value.url ?? "<nil>")
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service.attachment.value = response.value
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stateMachine.enter(Finish.self)
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}
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.store(in: &service.disposeBag)
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}
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}
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class Fail: MastodonAttachmentService.UploadState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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// allow discard publishing
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return stateClass == Uploading.self || stateClass == Finish.self
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}
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}
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class Finish: MastodonAttachmentService.UploadState {
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override func isValidNextState(_ stateClass: AnyClass) -> Bool {
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return false
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}
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}
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}
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