// 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.Linq;
using Microsoft.CodeAnalysis.Editor.Xaml;
using Roslyn.LanguageServer.Protocol;
using RoslynCompletion = Microsoft.CodeAnalysis.Completion;
 
namespace Microsoft.VisualStudio.LanguageServices.Xaml;
 
internal static class XamlCapabilities
{
    /// <summary>
    /// The currently supported set of XAML LSP Server capabilities
    /// </summary>
    public static VSInternalServerCapabilities Current => new()
    {
        CompletionProvider = new CompletionOptions
        {
            ResolveProvider = true,
            TriggerCharacters = ["<", " ", ":", ".", "=", "\"", "'", "{", ",", "("],
            AllCommitCharacters = [.. RoslynCompletion.CompletionRules.Default.DefaultCommitCharacters.Select(c => c.ToString())]
        },
        HoverProvider = true,
        FoldingRangeProvider = new FoldingRangeOptions { },
        DocumentFormattingProvider = true,
        DocumentRangeFormattingProvider = true,
        DocumentOnTypeFormattingProvider = new DocumentOnTypeFormattingOptions { FirstTriggerCharacter = ">" },
        OnAutoInsertProvider = new VSInternalDocumentOnAutoInsertOptions { TriggerCharacters = ["=", "/"] },
        TextDocumentSync = new TextDocumentSyncOptions
        {
            Change = TextDocumentSyncKind.None,
            OpenClose = false
        },
        SupportsDiagnosticRequests = true,
        LinkedEditingRangeProvider = new LinkedEditingRangeOptions { },
        ExecuteCommandProvider = new ExecuteCommandOptions { Commands = [StringConstants.CreateEventHandlerCommand] },
        DefinitionProvider = true,
    };
 
    /// <summary>
    /// An empty set of capabilities used to disable the XAML LSP Server
    /// </summary>
    public static VSServerCapabilities None => new()
    {
        TextDocumentSync = new TextDocumentSyncOptions
        {
            Change = TextDocumentSyncKind.None,
            OpenClose = false
        },
    };
}