Implement remote library metadata sync for iPhone

2026-05-29 08:54:09 +02:00
parent ebc187f4a1
commit 6e73c1878e
20 changed files with 1379 additions and 48 deletions
@@ -0,0 +1,74 @@
+import Foundation
+import VelodyDomain
+
+public protocol RemoteLibraryStore: Actor {
+    func loadRemoteTracks() async throws -> [RemoteTrack]
+    func replaceRemoteTracks(_ tracks: [RemoteTrack]) async throws
+}
+
+public actor FileRemoteLibraryStore: RemoteLibraryStore {
+    private let fileURL: URL
+    private let fileManager: FileManager
+    private let encoder = JSONEncoder()
+    private let decoder = JSONDecoder()
+
+    public init(
+        fileURL: URL? = nil,
+        fileManager: FileManager = .default
+    ) throws {
+        self.fileManager = fileManager
+        if let fileURL {
+            self.fileURL = fileURL
+        } else {
+            self.fileURL = try Self.defaultFileURL(fileManager: fileManager)
+        }
+    }
+
+    public func loadRemoteTracks() async throws -> [RemoteTrack] {
+        guard fileManager.fileExists(atPath: fileURL.path) else {
+            return []
+        }
+
+        let data = try Data(contentsOf: fileURL)
+        return try decoder.decode([RemoteTrack].self, from: data)
+    }
+
+    public func replaceRemoteTracks(_ tracks: [RemoteTrack]) async throws {
+        try fileManager.createDirectory(
+            at: fileURL.deletingLastPathComponent(),
+            withIntermediateDirectories: true
+        )
+
+        let data = try encoder.encode(tracks)
+        try data.write(to: fileURL, options: .atomic)
+    }
+
+    private static func defaultFileURL(fileManager: FileManager) throws -> URL {
+        guard let applicationSupportURL = fileManager.urls(
+            for: .applicationSupportDirectory,
+            in: .userDomainMask
+        ).first else {
+            throw CocoaError(.fileNoSuchFile)
+        }
+
+        return applicationSupportURL
+            .appendingPathComponent("Velody", isDirectory: true)
+            .appendingPathComponent("remote-library.json")
+    }
+}
+
+public actor InMemoryRemoteLibraryStore: RemoteLibraryStore {
+    private var tracks: [RemoteTrack]
+
+    public init(tracks: [RemoteTrack] = []) {
+        self.tracks = tracks
+    }
+
+    public func loadRemoteTracks() async throws -> [RemoteTrack] {
+        tracks
+    }
+
+    public func replaceRemoteTracks(_ tracks: [RemoteTrack]) async throws {
+        self.tracks = tracks
+    }
+}