52 lines
1.8 KiB
Swift
52 lines
1.8 KiB
Swift
import SwiftUI
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struct SubscriptionAddView: View {
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private let tag = "SubscriptionAddView"
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@Environment(\.managedObjectContext) var context
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@Environment(\.presentationMode) var presentationMode: Binding<PresentationMode>
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@EnvironmentObject private var store: Store
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@State private var topic: String = ""
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private var subscriptionManager: SubscriptionManager {
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return SubscriptionManager(store: store)
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}
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var body: some View {
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VStack {
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Form {
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Section(
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header: Text("Topic name"),
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footer: Text("Topics may not be password protected, so choose a name that's not easy to guess. Once subscribed, you can PUT/POST notifications")
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) {
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TextField("Topic name, e.g. phil_alerts", text: $topic)
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.textInputAutocapitalization(.never)
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}
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}
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.navigationBarTitleDisplayMode(.inline)
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.toolbar {
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ToolbarItem(placement: .navigationBarTrailing) {
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Button(action: subscribeAction) {
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Text("Subscribe")
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}
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.disabled(!isValid(topic: sanitize(topic: topic)))
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}
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}
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}
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}
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private func sanitize(topic: String) -> String {
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return topic.trimmingCharacters(in: [" "])
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}
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private func isValid(topic: String) -> Bool {
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return !topic.isEmpty && (topic.range(of: "^[-_A-Za-z0-9]{1,64}$", options: .regularExpression, range: nil, locale: nil) != nil)
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}
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private func subscribeAction() {
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DispatchQueue.global(qos: .background).async {
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subscriptionManager.subscribe(baseUrl: appBaseUrl, topic: sanitize(topic: topic))
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}
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presentationMode.wrappedValue.dismiss()
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}
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}
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