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persephone/Persephone/Services/Extensions/AlbumArtService+Caching.swift
Dan Barber 27c0e32e48
WIP: Refactor album art service
We need to make it more flexible and less coupled
2019-03-25 22:23:07 -04:00

38 lines
1.2 KiB
Swift

//
// AlbumArtService+Caching.swift
// Persephone
//
// Created by Daniel Barber on 2019/3/17.
// Copyright © 2019 Dan Barber. All rights reserved.
//
import Cocoa
import PromiseKit
extension AlbumArtService {
static let cacheDir = try! FileManager.default.url(for: .cachesDirectory, in: .userDomainMask, appropriateFor: nil, create: true).appendingPathComponent(Bundle.main.bundleIdentifier!)
func getCachedArtwork() -> Promise<NSImage?> {
return Promise { seal in
let cacheFilePath = AlbumArtService.cacheDir.appendingPathComponent(album.hash).path
let data = FileManager.default.contents(atPath: cacheFilePath)
let image = data.flatMap(NSImage.init(data:))
seal.fulfill(image)
}
}
func cacheArtwork(data: Data?) {
guard let bundleIdentifier = Bundle.main.bundleIdentifier,
let cacheDir = try? FileManager.default.url(for: .cachesDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
.appendingPathComponent(bundleIdentifier)
else { return }
let cacheFilePath = cacheDir.appendingPathComponent(album.hash).path
if !FileManager.default.fileExists(atPath: cacheFilePath) {
FileManager.default.createFile(atPath: cacheFilePath, contents: data, attributes: nil)
}
}
}