59 lines
1.5 KiB
Swift
59 lines
1.5 KiB
Swift
//
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// MastodonAttachmentService.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-3-17.
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//
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import UIKit
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import Combine
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import PhotosUI
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final class MastodonAttachmentService {
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var disposeBag = Set<AnyCancellable>()
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let identifier = UUID()
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// input
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let pickerResult: PHPickerResult
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let description = CurrentValueSubject<String?, Never>(nil)
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// output
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let imageData = CurrentValueSubject<Data?, Never>(nil)
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let error = CurrentValueSubject<Error?, Never>(nil)
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init(pickerResult: PHPickerResult) {
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self.pickerResult = pickerResult
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// end init
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PHPickerResultLoader.loadImageData(from: pickerResult)
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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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self.error.value = error
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case .finished:
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break
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}
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} receiveValue: { [weak self] imageData in
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guard let self = self else { return }
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self.imageData.value = imageData
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}
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.store(in: &disposeBag)
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}
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}
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extension MastodonAttachmentService: Equatable, Hashable {
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static func == (lhs: MastodonAttachmentService, rhs: MastodonAttachmentService) -> Bool {
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return lhs.identifier == rhs.identifier
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}
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func hash(into hasher: inout Hasher) {
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hasher.combine(identifier)
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}
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}
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