Impressia/Vernissage/CoreData/StatusDataHandler.swift

122 lines
4.3 KiB
Swift

//
// https://mczachurski.dev
// Copyright © 2023 Marcin Czachurski and the repository contributors.
// Licensed under the MIT License.
//
import Foundation
import CoreData
import MastodonKit
class StatusDataHandler {
public static let shared = StatusDataHandler()
private init() { }
func getAllStatuses(accountId: String) -> [StatusData] {
let context = CoreDataHandler.shared.container.viewContext
let fetchRequest = StatusData.fetchRequest()
let sortDescriptor = NSSortDescriptor(key: "id", ascending: true)
fetchRequest.sortDescriptors = [sortDescriptor]
fetchRequest.predicate = NSPredicate(format: "pixelfedAccount.id = %@", accountId)
do {
return try context.fetch(fetchRequest)
} catch {
ErrorService.shared.handle(error, message: "Error during fetching status (getStatusData).")
return []
}
}
func getStatusData(accountId: String, statusId: String) -> StatusData? {
let context = CoreDataHandler.shared.container.viewContext
let fetchRequest = StatusData.fetchRequest()
fetchRequest.fetchLimit = 1
let predicate1 = NSPredicate(format: "id = %@", statusId)
let predicate2 = NSPredicate(format: "pixelfedAccount.id = %@", accountId)
fetchRequest.predicate = NSCompoundPredicate.init(type: .and, subpredicates: [predicate1,predicate2])
do {
return try context.fetch(fetchRequest).first
} catch {
ErrorService.shared.handle(error, message: "Error during fetching status (getStatusData).")
return nil
}
}
func getMaximumStatus(accountId: String, viewContext: NSManagedObjectContext? = nil) -> StatusData? {
let context = viewContext ?? CoreDataHandler.shared.container.viewContext
let fetchRequest = StatusData.fetchRequest()
fetchRequest.fetchLimit = 1
let sortDescriptor = NSSortDescriptor(key: "id", ascending: false)
fetchRequest.sortDescriptors = [sortDescriptor]
fetchRequest.predicate = NSPredicate(format: "pixelfedAccount.id = %@", accountId)
do {
let statuses = try context.fetch(fetchRequest)
return statuses.first
} catch {
ErrorService.shared.handle(error, message: "Error during fetching maximum status (getMaximumStatus).")
return nil
}
}
func getMinimumStatus(accountId: String, viewContext: NSManagedObjectContext? = nil) -> StatusData? {
let context = viewContext ?? CoreDataHandler.shared.container.viewContext
let fetchRequest = StatusData.fetchRequest()
fetchRequest.fetchLimit = 1
let sortDescriptor = NSSortDescriptor(key: "id", ascending: true)
fetchRequest.sortDescriptors = [sortDescriptor]
fetchRequest.predicate = NSPredicate(format: "pixelfedAccount.id = %@", accountId)
do {
let statuses = try context.fetch(fetchRequest)
return statuses.first
} catch {
ErrorService.shared.handle(error, message: "Error during fetching minimum status (getMinimumtatus).")
return nil
}
}
func remove(accountId: String, statusId: String) {
let status = self.getStatusData(accountId: accountId, statusId: statusId)
guard let status else {
return
}
let context = CoreDataHandler.shared.container.viewContext
context.delete(status)
do {
try context.save()
} catch {
ErrorService.shared.handle(error, message: "Error during deleting status (remove).")
}
}
func remove(accountId: String, statuses: [StatusData]) {
let context = CoreDataHandler.shared.container.viewContext
for status in statuses {
context.delete(status)
}
do {
try context.save()
} catch {
ErrorService.shared.handle(error, message: "Error during deleting status (remove).")
}
}
func createStatusDataEntity(viewContext: NSManagedObjectContext? = nil) -> StatusData {
let context = viewContext ?? CoreDataHandler.shared.container.viewContext
return StatusData(context: context)
}
}