NetNewsWire/Frameworks/Account/Feedly/Operations/FeedlyRequestStreamsOperati...

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//
// FeedlyRequestStreamsOperation.swift
// Account
//
// Created by Kiel Gillard on 20/9/19.
// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
//
import Foundation
import os.log
protocol FeedlyRequestStreamsOperationDelegate: class {
func feedlyRequestStreamsOperation(_ operation: FeedlyRequestStreamsOperation, enqueue collectionStreamOperation: FeedlyGetStreamContentsOperation)
}
/// Create one stream request operation for one Feedly collection.
/// This is the start of the process of refreshing the entire contents of a Folder.
final class FeedlyRequestStreamsOperation: FeedlyOperation {
weak var queueDelegate: FeedlyRequestStreamsOperationDelegate?
let collectionsProvider: FeedlyCollectionProviding
let service: FeedlyGetStreamContentsService
let account: Account
let log: OSLog
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let newerThan: Date?
let unreadOnly: Bool?
init(account: Account, collectionsProvider: FeedlyCollectionProviding, newerThan: Date?, unreadOnly: Bool?, service: FeedlyGetStreamContentsService, log: OSLog) {
self.account = account
self.service = service
self.collectionsProvider = collectionsProvider
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self.newerThan = newerThan
self.unreadOnly = unreadOnly
self.log = log
}
override func run() {
defer {
didFinish()
}
assert(queueDelegate != nil, "This is not particularly useful unless the `queueDelegate` is non-nil.")
// TODO: Prioritise the must read collection/category before others so the most important content for the user loads first.
for collection in collectionsProvider.collections {
let resource = FeedlyCategoryResourceId(id: collection.id)
let operation = FeedlyGetStreamContentsOperation(account: account,
resource: resource,
service: service,
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newerThan: newerThan,
unreadOnly: unreadOnly,
log: log)
queueDelegate?.feedlyRequestStreamsOperation(self, enqueue: operation)
}
os_log(.debug, log: log, "Requested %i collection streams", collectionsProvider.collections.count)
}
}