74 lines
2.0 KiB
Swift
74 lines
2.0 KiB
Swift
//
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// FeedlyGetStreamIdsOperation.swift
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// Account
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//
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// Created by Kiel Gillard on 18/10/19.
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// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import os.log
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protocol FeedlyEntryIdenifierProviding: class {
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var resource: FeedlyResourceId { get }
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var entryIds: Set<String> { get }
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}
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protocol FeedlyGetStreamIdsOperationDelegate: class {
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func feedlyGetStreamIdsOperation(_ operation: FeedlyGetStreamIdsOperation, didGet streamIds: FeedlyStreamIds)
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}
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/// Single responsibility is to get the stream ids from Feedly.
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final class FeedlyGetStreamIdsOperation: FeedlyOperation, FeedlyEntryIdenifierProviding, FeedlyUnreadEntryIdProviding {
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var entryIds: Set<String> {
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guard let ids = streamIds?.ids else {
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assert(isFinished, "This should only be called when the operation finishes without error.")
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assertionFailure("Has this operation been addeded as a dependency on the caller?")
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return []
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}
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return Set(ids)
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}
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private(set) var streamIds: FeedlyStreamIds?
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let account: Account
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let service: FeedlyGetStreamIdsService
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let continuation: String?
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let resource: FeedlyResourceId
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let unreadOnly: Bool?
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let newerThan: Date?
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init(account: Account, resource: FeedlyResourceId, service: FeedlyGetStreamIdsService, continuation: String? = nil, newerThan: Date? = nil, unreadOnly: Bool?) {
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self.account = account
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self.resource = resource
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self.service = service
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self.continuation = continuation
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self.newerThan = newerThan
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self.unreadOnly = unreadOnly
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}
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weak var streamIdsDelegate: FeedlyGetStreamIdsOperationDelegate?
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override func main() {
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guard !isCancelled else {
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didFinish()
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return
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}
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service.getStreamIds(for: resource, continuation: continuation, newerThan: newerThan, unreadOnly: unreadOnly) { result in
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switch result {
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case .success(let stream):
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self.streamIds = stream
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self.streamIdsDelegate?.feedlyGetStreamIdsOperation(self, didGet: stream)
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self.didFinish()
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case .failure(let error):
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self.didFinish(error)
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}
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}
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}
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}
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