Trio/Trio/Sources/Helpers/PropertyPersistentFlags.swift

//
//  PropertyPersistentFlags.swift
//  Trio
//
//  Created by Cengiz Deniz on 06.05.25.
//
import Foundation

/// Centralized store for app-wide persistent flags backed by property list (.plist) files.
///
/// This class uses the `@PersistedProperty` wrapper to store simple state flags such as
/// onboarding completion, diagnostics sharing preference, and the last cleanup timestamp.
///
/// All values are persisted independently in the app’s documents directory as `.plist` files,
/// and survive app restarts and reinstallations (unless the sandbox is cleared).
///
/// Accessed as a singleton via `PropertyPersistentFlags.shared`.
final class PropertyPersistentFlags {
    static let shared = PropertyPersistentFlags()

    @PersistedProperty(key: "onboardingCompleted") var onboardingCompleted: Bool?

    @PersistedProperty(key: "diagnosticsSharing") var diagnosticsSharingEnabled: Bool?

    @PersistedProperty(key: "lastCleanupDate") var lastCleanupDate: Date?

    // TODO: This flag can be deleted in March 2027. Check the commit for other places to cleanup.
    @PersistedProperty(key: "hasSeenFatProteinOrderChange") var hasSeenFatProteinOrderChange: Bool?
}