Yattee v2 rewrite

Yattee/Data/ChannelNotificationSettings.swift

@@ -0,0 +1,61 @@
+//
+//  ChannelNotificationSettings.swift
+//  Yattee
+//
+//  SwiftData model for per-channel notification preferences.
+//  These settings are synced via iCloud independently of the subscription source.
+//
+
+import Foundation
+import SwiftData
+
+/// Stores notification preferences for a channel.
+/// This is separate from subscriptions so notification settings persist
+/// across subscription account changes (local vs Invidious).
+@Model
+final class ChannelNotificationSettings {
+    // MARK: - Properties
+
+    /// The channel ID this setting applies to.
+    @Attribute(.unique) var channelID: String = ""
+
+    /// Whether notifications are enabled for this channel.
+    var notificationsEnabled: Bool = false
+
+    /// When this setting was last updated.
+    var updatedAt: Date = Date()
+
+    /// Source type: "global", "federated", or "extracted".
+    var sourceRawValue: String = "global"
+
+    /// Instance URL for federated sources.
+    var instanceURLString: String?
+
+    /// Provider name for global sources (e.g. "youtube").
+    var globalProvider: String?
+
+    // MARK: - Initialization
+
+    init(
+        channelID: String,
+        notificationsEnabled: Bool = false,
+        sourceRawValue: String = "global",
+        instanceURLString: String? = nil,
+        globalProvider: String? = nil
+    ) {
+        self.channelID = channelID
+        self.notificationsEnabled = notificationsEnabled
+        self.updatedAt = Date()
+        self.sourceRawValue = sourceRawValue
+        self.instanceURLString = instanceURLString
+        self.globalProvider = globalProvider
+    }
+
+    // MARK: - Methods
+
+    /// Updates the notifications enabled state and timestamp.
+    func setNotificationsEnabled(_ enabled: Bool) {
+        notificationsEnabled = enabled
+        updatedAt = Date()
+    }
+}