import SwiftUI

/// Settings-Sheet aus AccountView. Heute: Daily-Reminder-Konfiguration.
struct SettingsView: View {
    @State private var notifications = NotificationManager()
    @State private var reminderDate: Date = .now
    @State private var requestingAuth = false

    var body: some View {
        Form {
            Section("Tägliche Erinnerung") {
                Toggle("Erinnerung aktiv", isOn: Binding(
                    get: { notifications.remindersEnabled },
                    set: { newValue in
                        notifications.remindersEnabled = newValue
                        Task {
                            if newValue, notifications.authorization != .authorized {
                                requestingAuth = true
                                _ = await notifications.requestAuthorization()
                                requestingAuth = false
                            }
                            await notifications.reschedule()
                        }
                    }
                ))
                .disabled(requestingAuth)

                if notifications.remindersEnabled {
                    DatePicker(
                        "Uhrzeit",
                        selection: $reminderDate,
                        displayedComponents: .hourAndMinute
                    )
                    .onChange(of: reminderDate) { _, newValue in
                        let cal = Calendar.current
                        notifications.reminderHour = cal.component(.hour, from: newValue)
                        notifications.reminderMinute = cal.component(.minute, from: newValue)
                        Task { await notifications.reschedule() }
                    }
                }

                if notifications.authorization == .denied {
                    Label(
                        "Benachrichtigungen sind in den iOS-Einstellungen blockiert.",
                        systemImage: "exclamationmark.circle"
                    )
                    .font(.caption)
                    .foregroundStyle(CardsTheme.warning)
                }
            }

            Section("Marketplace") {
                NavigationLink {
                    BlockedAuthorsView()
                } label: {
                    Label("Blockierte Authors", systemImage: "hand.raised")
                }
            }

            Section("Über") {
                LabeledContent("Server", value: "cardecky-api.mana.how")
                LabeledContent("Auth", value: "auth.mana.how")
            }
        }
        .navigationTitle("Einstellungen")
        #if os(iOS)
            .navigationBarTitleDisplayMode(.inline)
        #endif
            .task {
                await notifications.refreshAuthorization()
                var comp = DateComponents()
                comp.hour = notifications.reminderHour
                comp.minute = notifications.reminderMinute
                reminderDate = Calendar.current.date(from: comp) ?? .now
            }
    }
}