using System;
using System.Collections.Generic;
using System.IO;
using System.Text.Json;

namespace LanDiscovery.Services
{
    public class UserSettings
    {
        public string? LastNicId { get; set; }
        public List<string> LastRanges { get; set; } = new List<string>();
        public bool DarkMode { get; set; } = false;
    }

    public class SettingsService
    {
        private const string FileName = "settings.json";

        public void Save(UserSettings settings)
        {
            try
            {
                var json = JsonSerializer.Serialize(settings);
                File.WriteAllText(FileName, json);
            }
            catch { }
        }

        public UserSettings Load()
        {
            try
            {
                if (File.Exists(FileName))
                {
                    var json = File.ReadAllText(FileName);
                    return JsonSerializer.Deserialize<UserSettings>(json) ?? new UserSettings();
                }
            }
            catch { }
            return new UserSettings();
        }
    }
}