import Cache import Foundation import Logging import SwiftyJSON struct ChannelPlaylistsCacheModel: CacheModel { static let shared = ChannelPlaylistsCacheModel() let logger = Logger(label: "stream.yattee.cache.channel-playlists") static let diskConfig = DiskConfig(name: "channel-playlists") static let memoryConfig = MemoryConfig() var storage = try? Storage( diskConfig: Self.diskConfig, memoryConfig: Self.memoryConfig, transformer: BaseCacheModel.jsonTransformer ) func storePlaylist(playlist: ChannelPlaylist) { let date = iso8601DateFormatter.string(from: Date()) logger.info("STORE \(playlist.cacheKey) -- \(date)") let feedTimeObject: JSON = ["date": date] let playlistObject: JSON = ["playlist": playlist.json.object] try? storage?.setObject(feedTimeObject, forKey: playlistTimeCacheKey(playlist.cacheKey)) try? storage?.setObject(playlistObject, forKey: playlist.cacheKey) } func retrievePlaylist(_ playlist: ChannelPlaylist) -> ChannelPlaylist? { logger.info("RETRIEVE \(playlist.cacheKey)") if let json = try? storage?.object(forKey: playlist.cacheKey).dictionaryValue["playlist"] { return ChannelPlaylist.from(json) } return nil } func getPlaylistsTime(_ id: ChannelPlaylist.ID) -> Date? { if let json = try? storage?.object(forKey: playlistTimeCacheKey(id)), let string = json.dictionaryValue["date"]?.string, let date = iso8601DateFormatter.date(from: string) { return date } return nil } func getFormattedPlaylistTime(_ id: ChannelPlaylist.ID) -> String { getFormattedDate(getPlaylistsTime(id)) } private func playlistTimeCacheKey(_ cacheKey: ChannelPlaylist.ID) -> String { "\(cacheKey)-time" } }