// Copyright (c) Microsoft Corporation
// The Microsoft Corporation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Collections.Generic;
using System.IO;
using System.Linq;
using Microsoft.CmdPal.Ext.RemoteDesktop.Properties;
using Microsoft.CommandPalette.Extensions.Toolkit;

namespace Microsoft.CmdPal.Ext.RemoteDesktop.Settings;

internal class SettingsManager : JsonSettingsManager, ISettingsInterface
{
    // Line break character used in WinUI3 TextBox and TextBlock.
    private const char TEXTBOXNEWLINE = '\r';

    private static readonly string _namespace = "com.microsoft.cmdpal.builtin.remotedesktop";

    private static string Namespaced(string propertyName) => $"{_namespace}.{propertyName}";

    private readonly TextSetting _predefinedConnections = new(
        Namespaced(nameof(PredefinedConnections)),
        Resources.remotedesktop_settings_predefined_connections_title,
        Resources.remotedesktop_settings_predefined_connections_description,
        string.Empty)
    {
        Multiline = true,
        Placeholder = $"server1.domain.com{TEXTBOXNEWLINE}server2.domain.com{TEXTBOXNEWLINE}192.168.1.1",
    };

    public IReadOnlyCollection<string> PredefinedConnections => _predefinedConnections.Value?.Split(TEXTBOXNEWLINE).ToList() ?? [];

    internal static string SettingsJsonPath()
    {
        var directory = Utilities.BaseSettingsPath("Microsoft.CmdPal");
        Directory.CreateDirectory(directory);

        return Path.Combine(directory, "settings.json");
    }

    public SettingsManager()
    {
        FilePath = SettingsJsonPath();

        Settings.Add(_predefinedConnections);

        // Load settings from file upon initialization
        LoadSettings();

        Settings.SettingsChanged += (s, a) => this.SaveSettings();
    }
}