// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.ComponentModel;
using Microsoft.CodeAnalysis.Editor.EditorConfigSettings;
using Microsoft.CodeAnalysis.Editor.EditorConfigSettings.Data;
 
namespace Microsoft.VisualStudio.LanguageServices.EditorConfigSettings.NamingStyle.ViewModel
{
    internal class NamingStylesLocationViewModel : NotifyPropertyChangedBase
    {
        private readonly NamingStyleSetting _setting;
        private string _locationValue;
 
        public NamingStylesLocationViewModel(NamingStyleSetting setting)
        {
            _setting = setting;
            _setting.SettingChanged += OnSettingChanged;
            _locationValue = GetLocationString(_setting.Location);
        }
 
        public string LocationValue
        {
            get => _locationValue;
            set
            {
                if (value is not null && _locationValue != value)
                {
                    _locationValue = value;
                    OnPropertyChanged(new PropertyChangedEventArgs(nameof(LocationValue)));
                }
            }
        }
 
        public static string LocationToolTip { get; } = ServicesVSResources.Location;
        public static string LocationAutomationName { get; } = ServicesVSResources.Location;
 
        private void OnSettingChanged(object sender, System.EventArgs e)
            => LocationValue = GetLocationString(_setting.Location);
 
        private static string GetLocationString(SettingLocation? location)
            => location?.LocationKind switch
            {
                LocationKind.EditorConfig or LocationKind.GlobalConfig => location.Path!,
                _ => ServicesVSResources.Visual_Studio_Settings,
            };
    }
}