import SwiftUI

struct SettingsView: View {

    @AppStorage("connectionType")
    var connectionType: ConnectionStrategy = .remoteFirst

    @AppStorage("server")
    var serverPath: String = "https://christophhagen.de/sesame/"

    @AppStorage("localIP")
    var localAddress: String = "192.168.178.104/"

    @AppStorage("counter")
    var nextMessageCounter: Int = 0

    @AppStorage("compensate")
    var isCompensatingDaylightTime: Bool = false

    @AppStorage("deviceId")
    private var deviceId: Int = 0

    @EnvironmentObject
    var keys: KeyManagement

    var body: some View {
        NavigationStack {
            List {
                Picker("Connection", selection: $connectionType) {
                    Text(ConnectionStrategy.local.rawValue)
                        .tag(ConnectionStrategy.local)
                    Text(ConnectionStrategy.localFirst.rawValue)
                        .tag(ConnectionStrategy.localFirst)
                    Text(ConnectionStrategy.remote.rawValue)
                        .tag(ConnectionStrategy.remote)
                    Text(ConnectionStrategy.remoteFirst.rawValue)
                        .tag(ConnectionStrategy.remoteFirst)
                }
                .padding(.leading)
                SettingsTextItemLink(
                    title: "Server url",
                    value: $serverPath,
                    footnote: "The url where the sesame server listens for incoming messages.")
                SettingsTextItemLink(
                    title: "Local url",
                    value: $localAddress,
                    footnote: "The url where the device can be reached directly on the local WiFi network.")
                SettingsNumberItemLink(
                    title: "Device ID",
                    value: $deviceId,
                    footnote: "The device ID is unique for each remote device, and is assigned by the system administrator.")
                SettingsNumberItemLink(
                    title: "Message counter",
                    value: $nextMessageCounter,
                    footnote: "The message counter is increased after every message to the device, and used to prevent replay attacks.")
                SettingsListToggleItem(
                    title: "Daylight savings",
                    value: $isCompensatingDaylightTime,
                    subtitle: "Compensate timestamps if the remote has daylight savings time wrongly set.")
                SettingsKeyItemLink(
                    type: .deviceKey,
                    footnote: "Some text describing the purpose of the key.")
                .environmentObject(keys)
                SettingsKeyItemLink(
                    type: .remoteKey,
                    footnote: "Some text describing the purpose of the key.")
                .environmentObject(keys)
                SettingsKeyItemLink(
                    type: .authToken,
                    footnote: "Some text describing the purpose of the key.")
                .environmentObject(keys)
            }
            .navigationTitle("Settings")
        }
    }
}

struct SettingsView_Previews: PreviewProvider {
    static var previews: some View {
        SettingsView()
            .previewDevice("Apple Watch Series 7 - 41mm")
            .environmentObject(KeyManagement())
    }
}