SideStore/AltStoreCore/Model/AppVersion.swift

//
//  AppVersion.swift
//  AltStoreCore
//
//  Created by Riley Testut on 8/18/22.
//  Copyright © 2022 Riley Testut. All rights reserved.
//

import CoreData

@objc(AppVersion)
public class AppVersion: NSManagedObject, Decodable, Fetchable
{
    /* Properties */
    @NSManaged public var version: String
    @NSManaged public var date: Date
    @NSManaged public var localizedDescription: String?
    
    @NSManaged public var downloadURL: URL
    @NSManaged public var size: Int64
    
    @nonobjc public var minOSVersion: OperatingSystemVersion? {
        guard let osVersionString = self._minOSVersion else { return nil }
        
        let osVersion = OperatingSystemVersion(string: osVersionString)
        return osVersion
    }
    @NSManaged @objc(minOSVersion) private var _minOSVersion: String?
    
    @nonobjc public var maxOSVersion: OperatingSystemVersion? {
        guard let osVersionString = self._maxOSVersion else { return nil }
        
        let osVersion = OperatingSystemVersion(string: osVersionString)
        return osVersion
    }
    @NSManaged @objc(maxOSVersion) private var _maxOSVersion: String?
    
    @NSManaged public var appBundleID: String
    @NSManaged public var sourceID: String?
    
    /* Relationships */
    @NSManaged public private(set) var app: StoreApp?
    @NSManaged public private(set) var latestVersionApp: StoreApp?
    
    private override init(entity: NSEntityDescription, insertInto context: NSManagedObjectContext?)
    {
        super.init(entity: entity, insertInto: context)
    }
    
    
    private enum CodingKeys: String, CodingKey
    {
        case version
        case date
        case localizedDescription
        case downloadURL
        case size
        case _minOSVersion
        case _maxOSVersion
        case appBundleID
        case sourceID
    }
    
    public required init(from decoder: Decoder) throws
    {
        guard let context = decoder.managedObjectContext else { preconditionFailure("Decoder must have non-nil NSManagedObjectContext.") }
        
        super.init(entity: NewsItem.entity(), insertInto: context)
        
        let container = try decoder.container(keyedBy: CodingKeys.self)
        self.version = try container.decode(String.self, forKey: .version)
        self.date = try container.decode(Date.self, forKey: .date)
        
        self.localizedDescription = try container.decodeIfPresent(String.self, forKey: .localizedDescription)
        self.downloadURL = try container.decode(URL.self, forKey: .downloadURL)
        self.size = try container.decode(Int64.self, forKey: .size)

        self._minOSVersion = try container.decodeIfPresent(String.self, forKey: ._minOSVersion)
        self._maxOSVersion = try container.decodeIfPresent(String.self, forKey: ._maxOSVersion)

        self.appBundleID = try container.decode(String.self, forKey: .appBundleID)
        self.sourceID = try container.decodeIfPresent(String.self, forKey: .sourceID)
    }
}

public extension AppVersion
{
    @nonobjc class func fetchRequest() -> NSFetchRequest<AppVersion>
    {
        return NSFetchRequest<AppVersion>(entityName: "AppVersion")
    }
}