//
//  NotificationsPrefsView.swift
//  Tusker
//
//  Created by Shadowfacts on 4/6/24.
//  Copyright © 2024 Shadowfacts. All rights reserved.
//

import SwiftUI
import UserNotifications
import UserAccounts
import PushNotifications
import TuskerComponents

struct NotificationsPrefsView: View {
    @State private var error: NotificationsSetupError?
    @ObservedObject private var userAccounts = UserAccountsManager.shared
    
    var body: some View {
        List {
            Section {
                ForEach(userAccounts.accounts) { account in
                    PushInstanceSettingsView(account: account)
                }
            }
            .appGroupedListRowBackground()
            
            if #available(iOS 15.4, *) {
                Section {
                    Button {
                        let str = if #available(iOS 16.0, *) {
                            UIApplication.openNotificationSettingsURLString
                        } else {
                            UIApplicationOpenNotificationSettingsURLString
                        }
                        if let url = URL(string: str) {
                            UIApplication.shared.open(url)
                        }
                    } label: {
                        Text("Open Notification Settings…")
                    }
                }
                .appGroupedListRowBackground()
            }
        }
        .listStyle(.insetGrouped)
        .appGroupedListBackground(container: PreferencesNavigationController.self)
        .navigationTitle("Notifications")
    }
}

private enum NotificationsSetupError: LocalizedError {
    case requestingAuthorization(any Error)
    
    var errorDescription: String? {
        switch self {
        case .requestingAuthorization(let error):
            "Notifications authorization request failed: \(error.localizedDescription)"
        }
    }
}