import SwiftUI

/// Toggle + time picker that drives an optional reminder time. Designed to sit
/// inside a Form Section or a VStack. Requests notification permission when the
/// user first switches the reminder on. Scheduling is the caller's job.
struct ReminderEditor: View {
    @Binding var reminderTime: Date?

    @State private var enabled: Bool
    @State private var time: Date

    init(reminderTime: Binding<Date?>) {
        _reminderTime = reminderTime
        _enabled = State(initialValue: reminderTime.wrappedValue != nil)
        _time = State(initialValue: reminderTime.wrappedValue ?? NotificationManager.defaultTime)
    }

    var body: some View {
        Group {
            Toggle(isOn: $enabled) {
                Label("Tägliche Erinnerung", systemImage: "bell.fill")
            }
            .onChange(of: enabled) { _, isOn in
                reminderTime = isOn ? time : nil
                if isOn {
                    Task { await NotificationManager.requestAuthorization() }
                }
            }

            if enabled {
                DatePicker("Uhrzeit", selection: $time, displayedComponents: .hourAndMinute)
                    .onChange(of: time) { _, newValue in
                        reminderTime = newValue
                    }
            }
        }
    }
}