// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace Aspire.Cli;
 
/// <summary>
/// Metadata for an Aspire feature flag.
/// </summary>
/// <param name="Name">The feature flag name (without the "features." prefix).</param>
/// <param name="Description">A description of what the feature does.</param>
/// <param name="DefaultValue">The default value if not explicitly configured.</param>
internal sealed record FeatureMetadata(string Name, string Description, bool DefaultValue);
 
// this is a copy of Shared/KnownResourceNames.cs
internal static class KnownFeatures
{
    public static string FeaturePrefix => "features";
    public static string UpdateNotificationsEnabled => "updateNotificationsEnabled";
    public static string MinimumSdkCheckEnabled => "minimumSdkCheckEnabled";
    public static string ExecCommandEnabled => "execCommandEnabled";
    public static string OrphanDetectionWithTimestampEnabled => "orphanDetectionWithTimestampEnabled";
    public static string ShowDeprecatedPackages => "showDeprecatedPackages";
    public static string PackageSearchDiskCachingEnabled => "packageSearchDiskCachingEnabled";
    public static string StagingChannelEnabled => "stagingChannelEnabled";
    public static string DefaultWatchEnabled => "defaultWatchEnabled";
    public static string ShowAllTemplates => "showAllTemplates";
    public static string PolyglotSupportEnabled => "polyglotSupportEnabled";
    public static string DotNetSdkInstallationEnabled => "dotnetSdkInstallationEnabled";
    public static string RunningInstanceDetectionEnabled => "runningInstanceDetectionEnabled";
 
    private static readonly Dictionary<string, FeatureMetadata> s_featureMetadata = new()
    {
        [UpdateNotificationsEnabled] = new(
            UpdateNotificationsEnabled,
            "Check if update notifications are disabled and set version check environment variable",
            DefaultValue: true),
        
        [MinimumSdkCheckEnabled] = new(
            MinimumSdkCheckEnabled,
            "Enable or disable minimum .NET SDK version checking before running Aspire applications",
            DefaultValue: true),
        
        [ExecCommandEnabled] = new(
            ExecCommandEnabled,
            "Enable or disable the 'aspire exec' command for executing commands inside running resources",
            DefaultValue: false),
        
        [OrphanDetectionWithTimestampEnabled] = new(
            OrphanDetectionWithTimestampEnabled,
            "Enable or disable timestamp-based orphan process detection to clean up stale Aspire processes",
            DefaultValue: true),
        
        [ShowDeprecatedPackages] = new(
            ShowDeprecatedPackages,
            "Show or hide deprecated packages in 'aspire add' search results",
            DefaultValue: false),
        
        [PackageSearchDiskCachingEnabled] = new(
            PackageSearchDiskCachingEnabled,
            "Enable or disable disk caching for package search results to improve performance",
            DefaultValue: true),
        
        [StagingChannelEnabled] = new(
            StagingChannelEnabled,
            "Enable or disable access to the staging channel for early access to preview features and packages",
            DefaultValue: false),
        
        [DefaultWatchEnabled] = new(
            DefaultWatchEnabled,
            "Enable or disable watch mode by default when running Aspire applications for automatic restarts on file changes",
            DefaultValue: false),
        
        [ShowAllTemplates] = new(
            ShowAllTemplates,
            "Show all available templates including experimental ones in 'aspire new' and 'aspire init' commands",
            DefaultValue: false),
        
        [PolyglotSupportEnabled] = new(
            PolyglotSupportEnabled,
            "Enable or disable support for non-.NET (polyglot) languages and runtimes in Aspire applications",
            DefaultValue: false),
        
        [DotNetSdkInstallationEnabled] = new(
            DotNetSdkInstallationEnabled,
            "Enable or disable automatic .NET SDK installation when a required SDK version is missing",
            DefaultValue: true),
        
        [RunningInstanceDetectionEnabled] = new(
            RunningInstanceDetectionEnabled,
            "Enable or disable detection of already running Aspire instances to prevent conflicts",
            DefaultValue: true)
    };
 
    /// <summary>
    /// Gets metadata for a specific feature.
    /// </summary>
    public static FeatureMetadata? GetFeatureMetadata(string featureName)
    {
        return s_featureMetadata.TryGetValue(featureName, out var metadata) ? metadata : null;
    }
 
    /// <summary>
    /// Gets all available feature metadata.
    /// </summary>
    public static IEnumerable<FeatureMetadata> GetAllFeatureMetadata()
    {
        return s_featureMetadata.Values.OrderBy(m => m.Name);
    }
 
    /// <summary>
    /// Gets all available feature names (without the "features." prefix).
    /// </summary>
    public static IEnumerable<string> GetAllFeatureNames()
    {
        return s_featureMetadata.Keys.OrderBy(name => name);
    }
}