// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics.CodeAnalysis;
 
namespace Microsoft.JSInterop.Infrastructure;
 
/// <summary>
/// Configuration of an interop call from .NET to JavaScript.
/// </summary>
public readonly struct JSInvocationInfo
{
    private readonly string? _argsJson;
 
    /// <summary>
    /// The identifier for the interop call, or zero if no async callback is required.
    /// </summary>
    public required long AsyncHandle { get; init; }
 
    /// <summary>
    /// The instance ID of the target JS object.
    /// </summary>
    public required long TargetInstanceId { get; init; }
 
    /// <summary>
    /// The identifier of the function to invoke or property to access.
    /// </summary>
    public required string Identifier { get; init; }
 
    /// <summary>
    /// The type of operation that should be performed in JS.
    /// </summary>
    public required JSCallType CallType { get; init; }
 
    /// <summary>
    /// The type of result expected from the invocation.
    /// </summary>
    public required JSCallResultType ResultType { get; init; }
 
    /// <summary>
    /// A JSON representation of the arguments.
    /// </summary>
    [StringSyntax(StringSyntaxAttribute.Json)]
    public required string ArgsJson
    {
        get => _argsJson ?? "[]";
        init => _argsJson = value;
    }
}