import Cache import Foundation import Logging import SwiftyJSON struct ChannelsCacheModel: CacheModel { static let shared = ChannelsCacheModel() let logger = Logger(label: "stream.yattee.cache.channels") static let diskConfig = DiskConfig(name: "channels") static let memoryConfig = MemoryConfig() let storage = try? Storage( diskConfig: Self.diskConfig, memoryConfig: Self.memoryConfig, transformer: BaseCacheModel.jsonTransformer ) func store(_ channel: Channel) { guard channel.hasExtendedDetails else { logger.debug("not caching \(channel.cacheKey)") return } logger.info("caching \(channel.cacheKey)") try? storage?.setObject(channel.json, forKey: channel.cacheKey) } func storeIfMissing(_ channel: Channel) { guard let storage, !storage.objectExists(forKey: channel.cacheKey) else { return } store(channel) } func retrieve(_ cacheKey: String) -> ChannelPage? { logger.debug("retrieving cache for \(cacheKey)") if let json = try? storage?.object(forKey: cacheKey) { return ChannelPage(channel: Channel.from(json)) } return nil } }