NetNewsWire/Account/Sources/Account/Feedly/Operations/FeedlyIngestStreamArticleID...

76 lines
2.1 KiB
Swift

//
// FeedlyIngestStreamArticleIDsOperation.swift
// Account
//
// Created by Kiel Gillard on 9/1/20.
// Copyright © 2020 Ranchero Software, LLC. All rights reserved.
//
import Foundation
import os.log
import Secrets
import Database
/// Ensure a status exists for every article id the user might be interested in.
///
/// Typically, it pages through the article ids of the global.all stream.
/// As the article ids are collected, a default read status is created for each.
/// So this operation has side effects *for the entire account* it operates on.
class FeedlyIngestStreamArticleIDsOperation: FeedlyOperation {
private let account: Account
private let resource: FeedlyResourceID
private let service: FeedlyGetStreamIDsService
private let log: OSLog
init(account: Account, resource: FeedlyResourceID, service: FeedlyGetStreamIDsService, log: OSLog) {
self.account = account
self.resource = resource
self.service = service
self.log = log
}
convenience init(account: Account, userID: String, service: FeedlyGetStreamIDsService, log: OSLog) {
let all = FeedlyCategoryResourceID.Global.all(for: userID)
self.init(account: account, resource: all, service: service, log: log)
}
override func run() {
getStreamIDs(nil)
}
private func getStreamIDs(_ continuation: String?) {
service.getStreamIDs(for: resource, continuation: continuation, newerThan: nil, unreadOnly: nil, completion: didGetStreamIDs(_:))
}
private func didGetStreamIDs(_ result: Result<FeedlyStreamIDs, Error>) {
guard !isCanceled else {
didFinish()
return
}
switch result {
case .success(let streamIDs):
Task { @MainActor in
do {
try await account.createStatusesIfNeeded(articleIDs: Set(streamIDs.ids))
guard let continuation = streamIDs.continuation else {
os_log(.debug, log: self.log, "Reached end of stream for %@", self.resource.id)
self.didFinish()
return
}
self.getStreamIDs(continuation)
} catch {
self.didFinish(with: error)
return
}
}
case .failure(let error):
didFinish(with: error)
}
}
}