Tusker/Pachyderm/Utilities/NotificationGroup.swift

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2019-09-05 21:38:04 +00:00
//
// NotificationGroup.swift
// Pachyderm
//
// Created by Shadowfacts on 9/5/19.
// Copyright © 2019 Shadowfacts. All rights reserved.
//
import Foundation
public class NotificationGroup {
public let notificationIDs: [String]
public let id: String
public let kind: Notification.Kind
init?(notifications: [Notification]) {
guard !notifications.isEmpty else { return nil }
self.notificationIDs = notifications.map { $0.id }
self.id = notifications.first!.id
self.kind = notifications.first!.kind
}
public static func createGroups(notifications: [Notification], only allowedTypes: [Notification.Kind]) -> [NotificationGroup] {
return notifications.reduce(into: [[Notification]]()) { (groups, notification) in
if allowedTypes.contains(notification.kind),
let lastGroup = groups.last,
let firstStatus = lastGroup.first,
firstStatus.kind == notification.kind,
firstStatus.status?.id == notification.status?.id {
groups[groups.count - 1].append(notification)
} else {
groups.append([notification])
}
}.map {
NotificationGroup(notifications: $0)!
}
}
}
extension NotificationGroup: Identifiable {}