2022-12-10 20:08:03 +00:00
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import Cache
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2021-09-25 08:18:22 +00:00
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import Foundation
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2022-12-10 20:08:03 +00:00
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import Logging
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2021-09-25 08:18:22 +00:00
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import Siesta
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import SwiftUI
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2022-12-10 20:08:03 +00:00
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import SwiftyJSON
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2021-09-25 08:18:22 +00:00
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2022-12-12 09:21:46 +00:00
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final class SubscribedChannelsModel: ObservableObject, CacheModel {
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static var shared = SubscribedChannelsModel()
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2022-12-10 20:08:03 +00:00
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let logger = Logger(label: "stream.yattee.cache.channels")
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static let diskConfig = DiskConfig(name: "channels")
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static let memoryConfig = MemoryConfig()
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2022-12-12 09:21:46 +00:00
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let storage = try? Storage<String, JSON>(
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diskConfig: SubscribedChannelsModel.diskConfig,
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memoryConfig: SubscribedChannelsModel.memoryConfig,
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transformer: BaseCacheModel.jsonTransformer
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)
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2022-11-24 20:36:05 +00:00
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@Published var isLoading = false
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@Published var channels = [Channel]()
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@Published var error: RequestError?
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2022-11-24 20:36:05 +00:00
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var accounts: AccountsModel { .shared }
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var unwatchedFeedCount: UnwatchedFeedCountModel { .shared }
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2021-10-16 22:48:58 +00:00
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2021-10-20 22:21:50 +00:00
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var resource: Resource? {
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accounts.api.subscriptions
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}
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var all: [Channel] {
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channels.sorted { $0.name.lowercased() < $1.name.lowercased() }
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}
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2023-05-26 20:38:32 +00:00
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var allByUnwatchedCount: [Channel] {
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if let account = accounts.current {
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return all.sorted { c1, c2 in
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let c1HasUnwatched = (unwatchedFeedCount.unwatchedByChannel[account]?[c1.id] ?? -1) > 0
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let c2HasUnwatched = (unwatchedFeedCount.unwatchedByChannel[account]?[c2.id] ?? -1) > 0
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let nameIncreasing = c1.name.lowercased() < c2.name.lowercased()
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return c1HasUnwatched ? (c2HasUnwatched ? nameIncreasing : true) : (c2HasUnwatched ? false : nameIncreasing)
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}
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}
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return all
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}
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func subscribe(_ channelID: String, onSuccess: @escaping () -> Void = {}) {
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accounts.api.subscribe(channelID) {
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self.scheduleLoad(onSuccess: onSuccess)
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}
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}
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func unsubscribe(_ channelID: String, onSuccess: @escaping () -> Void = {}) {
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accounts.api.unsubscribe(channelID) {
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self.scheduleLoad(onSuccess: onSuccess)
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}
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}
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func isSubscribing(_ channelID: String) -> Bool {
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channels.contains { $0.id == channelID }
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}
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func load(force: Bool = false, onSuccess: @escaping () -> Void = {}) {
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guard accounts.app.supportsSubscriptions, !isLoading, accounts.signedIn, let account = accounts.current else {
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channels = []
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return
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}
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loadCachedChannels(account)
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DispatchQueue.main.async { [weak self] in
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guard let self else { return }
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let request = force ? self.resource?.load() : self.resource?.loadIfNeeded()
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if request != nil {
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self.isLoading = true
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}
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request?
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.onCompletion { [weak self] _ in
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self?.isLoading = false
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}
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.onSuccess { resource in
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self.error = nil
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if let channels: [Channel] = resource.typedContent() {
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self.channels = channels
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channels.forEach { ChannelsCacheModel.shared.storeIfMissing($0) }
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self.storeChannels(account: account, channels: channels)
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FeedModel.shared.calculateUnwatchedFeed()
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onSuccess()
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}
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}
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.onFailure { self.error = $0 }
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}
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}
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func loadCachedChannels(_ account: Account) {
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let cache = getChannels(account: account)
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if !cache.isEmpty {
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DispatchQueue.main.async {
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self.channels = cache
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}
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}
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}
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func storeChannels(account: Account, channels: [Channel]) {
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let date = iso8601DateFormatter.string(from: Date())
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logger.info("caching channels \(channelsDateCacheKey(account)) -- \(date)")
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channels.forEach { ChannelsCacheModel.shared.storeIfMissing($0) }
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let dateObject: JSON = ["date": date]
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let channelsObject: JSON = ["channels": channels.map(\.json).map(\.object)]
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try? storage?.setObject(dateObject, forKey: channelsDateCacheKey(account))
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try? storage?.setObject(channelsObject, forKey: channelsCacheKey(account))
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}
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func getChannels(account: Account) -> [Channel] {
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logger.info("getting channels \(channelsDateCacheKey(account))")
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if let json = try? storage?.object(forKey: channelsCacheKey(account)),
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let channels = json.dictionaryValue["channels"]
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{
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return channels.arrayValue.compactMap { json in
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let channel = Channel.from(json)
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if !channel.hasExtendedDetails,
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let cache = ChannelsCacheModel.shared.retrieve(channel.cacheKey)
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{
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return cache.channel
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}
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return channel
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}
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}
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return []
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}
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2021-11-14 23:06:01 +00:00
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private func scheduleLoad(onSuccess: @escaping () -> Void) {
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DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
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self.load(force: true, onSuccess: onSuccess)
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}
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}
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private func channelsCacheKey(_ account: Account) -> String {
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"channels-\(account.id)"
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}
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private func channelsDateCacheKey(_ account: Account) -> String {
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"channels-\(account.id)-date"
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}
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func getChannelsTime(account: Account) -> Date? {
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if let json = try? storage?.object(forKey: channelsDateCacheKey(account)),
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let string = json.dictionaryValue["date"]?.string,
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let date = iso8601DateFormatter.date(from: string)
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{
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return date
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}
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return nil
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}
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var channelsTime: Date? {
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if let account = accounts.current {
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return getChannelsTime(account: account)
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}
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return nil
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}
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var formattedCacheTime: String {
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getFormattedDate(channelsTime)
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}
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2022-12-20 22:51:04 +00:00
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func onAccountChange() {
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channels = []
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load(force: true)
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}
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2021-09-25 08:18:22 +00:00
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}
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