77 lines
2.1 KiB
Swift
77 lines
2.1 KiB
Swift
//
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// APIService+CoreData+Instance.swift
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// Mastodon
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//
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// Created by Cirno MainasuK on 2021-10-9.
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//
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import os.log
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import Foundation
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import CoreData
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import CoreDataStack
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import MastodonSDK
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extension APIService.CoreData {
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static func createOrMergeInstance(
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into managedObjectContext: NSManagedObjectContext,
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domain: String,
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entity: Mastodon.Entity.Instance,
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networkDate: Date,
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log: OSLog
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) -> (instance: Instance, isCreated: Bool) {
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// fetch old mastodon user
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let old: Instance? = {
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let request = Instance.sortedFetchRequest
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request.predicate = Instance.predicate(domain: domain)
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request.fetchLimit = 1
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request.returnsObjectsAsFaults = false
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do {
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return try managedObjectContext.fetch(request).first
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} catch {
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assertionFailure(error.localizedDescription)
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return nil
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}
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}()
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if let old = old {
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// merge old
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APIService.CoreData.merge(
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instance: old,
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entity: entity,
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domain: domain,
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networkDate: networkDate
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)
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return (old, false)
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} else {
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let instance = Instance.insert(
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into: managedObjectContext,
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property: Instance.Property(domain: domain)
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)
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let configurationRaw = entity.configuration.flatMap { Instance.encode(configuration: $0) }
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instance.update(configurationRaw: configurationRaw)
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return (instance, true)
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}
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}
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}
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extension APIService.CoreData {
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static func merge(
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instance: Instance,
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entity: Mastodon.Entity.Instance,
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domain: String,
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networkDate: Date
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) {
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guard networkDate > instance.updatedAt else { return }
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let configurationRaw = entity.configuration.flatMap { Instance.encode(configuration: $0) }
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instance.update(configurationRaw: configurationRaw)
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instance.didUpdate(at: networkDate)
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}
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}
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