// 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.Collections.Immutable;
using System.Runtime.Serialization;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.FindUsages;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.CodeAnalysis.SemanticSearch;
 
internal interface ISemanticSearchResultsObserver
{
    ValueTask OnUserCodeExceptionAsync(UserCodeExceptionInfo exception, CancellationToken cancellationToken);
    ValueTask OnCompilationFailureAsync(ImmutableArray<QueryCompilationError> errors, CancellationToken cancellationToken);
    ValueTask OnDefinitionFoundAsync(DefinitionItem definition, CancellationToken cancellationToken);
    ValueTask AddItemsAsync(int itemCount, CancellationToken cancellationToken);
    ValueTask ItemsCompletedAsync(int itemCount, CancellationToken cancellationToken);
}
 
[DataContract]
internal readonly record struct UserCodeExceptionInfo(
    [property: DataMember(Order = 0)] string ProjectDisplayName,
    [property: DataMember(Order = 1)] string Message,
    [property: DataMember(Order = 2)] ImmutableArray<TaggedText> TypeName,
    [property: DataMember(Order = 3)] ImmutableArray<TaggedText> StackTrace,
    [property: DataMember(Order = 4)] TextSpan Span);
 
[DataContract]
internal readonly record struct QueryCompilationError(
    [property: DataMember(Order = 0)] string Id,
    [property: DataMember(Order = 1)] string Message,
    [property: DataMember(Order = 2)] TextSpan Span);