Tusker/Tusker/CoreData/MastodonCachePersistentStore.swift

//
//  MastodonCachePersistentStore.swift
//  Tusker
//
//  Created by Shadowfacts on 4/11/20.
//  Copyright © 2020 Shadowfacts. All rights reserved.
//

import Foundation
import CoreData

class MastodonCachePersistentStore: NSPersistentContainer {
    
    init(for controller: MastodonController) {
        let url = Bundle.main.url(forResource: "Tusker", withExtension: "momd")!
        let model = NSManagedObjectModel(contentsOf: url)!
        super.init(name: "\(controller.accountInfo!.id)_cache", managedObjectModel: model)
        loadPersistentStores { (description, error) in
            if let error = error {
                fatalError("Unable to load persistent store: \(error)")
            }
        }
    }
    
    func status(for id: String) -> StatusMO? {
        let request: NSFetchRequest<StatusMO> = StatusMO.fetchRequest()
        request.predicate = NSPredicate(format: "id = %@", id)
        request.fetchLimit = 1
        if let result = try? viewContext.fetch(request), let status = result.first {
            return status
        } else {
            return nil
        }
    }
    
    func account(for id: String) -> AccountMO? {
        let request: NSFetchRequest<AccountMO> = AccountMO.fetchRequest()
        request.predicate = NSPredicate(format: "id = %@", id)
        request.fetchLimit = 1
        if let result = try? viewContext.fetch(request), let account = result.first {
            return account
        } else {
            return nil
        }
    }
    
}