84 lines
2.6 KiB
Swift
84 lines
2.6 KiB
Swift
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//
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// TimelinePosition.swift
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// Tusker
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//
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// Created by Shadowfacts on 12/23/22.
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// Copyright © 2022 Shadowfacts. All rights reserved.
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//
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import Foundation
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import CoreData
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import Pachyderm
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@objc(TimelinePosition)
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public final class TimelinePosition: NSManagedObject {
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@nonobjc class func fetchRequest(timeline: Timeline, account: LocalData.UserAccountInfo) -> NSFetchRequest<TimelinePosition> {
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let req = NSFetchRequest<TimelinePosition>(entityName: "TimelinePosition")
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req.predicate = NSPredicate(format: "accountID = %@ AND timelineKind = %@", account.id, toTimelineKind(timeline))
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return req
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}
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@NSManaged public var accountID: String
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@NSManaged private var timelineKind: String
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@NSManaged public var centerStatusID: String?
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@NSManaged private var statusIDsData: Data?
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@LazilyDecoding(arrayFrom: \TimelinePosition.statusIDsData)
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var statusIDs: [String]
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var timeline: Timeline {
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get { fromTimelineKind(timelineKind) }
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set { timelineKind = toTimelineKind(newValue) }
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}
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convenience init(timeline: Timeline, account: LocalData.UserAccountInfo, context: NSManagedObjectContext) {
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self.init(context: context)
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self.timeline = timeline
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self.accountID = account.id
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}
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}
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// blergh, this is the simplest way of getting the Timeline into a format that A) CoreData can handle and B) is usable in the predicate
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func toTimelineKind(_ timeline: Timeline) -> String {
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switch timeline {
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case .home:
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return "home"
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case .public(local: true):
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return "local"
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case .public(local: false):
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return "federated"
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case .direct:
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return "direct"
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case .tag(hashtag: let name):
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return "hashtag:\(name)"
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case .list(id: let id):
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return "list:\(id)"
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}
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}
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func fromTimelineKind(_ kind: String) -> Timeline {
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if kind == "home" {
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return .home
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} else if kind == "local" {
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return .public(local: true)
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} else if kind == "federated" {
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return .public(local: false)
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} else if kind == "direct" {
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return .direct
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} else if kind.starts(with: "hashtag:") {
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return .tag(hashtag: String(trimmingPrefix("hashtag:", of: kind)))
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} else if kind.starts(with: "list:") {
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return .list(id: String(trimmingPrefix("list:", of: kind)))
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} else {
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fatalError("invalid timeline kind \(kind)")
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}
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}
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// replace with Collection.trimmingPrefix
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@available(iOS, obsoleted: 16.0)
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private func trimmingPrefix(_ prefix: String, of str: String) -> Substring {
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return str[str.index(str.startIndex, offsetBy: prefix.count)...]
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}
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