using MediatR;
using EnvelopeGenerator.Application.Common.Dto;
using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
using EnvelopeGenerator.Application.Common.Query;

namespace EnvelopeGenerator.Application.Signatures.Commands;

/// <summary>
/// Command to sign a document by a receiver.
/// </summary>
public record SignCommand : EnvelopeReceiverQueryBase, IRequest
{
    private EnvelopeReceiverDto? _envelopeReceiver;

    internal void SetEnvelopeReceiver(EnvelopeReceiverDto envelopeReceiver)
    {
        _envelopeReceiver = envelopeReceiver;
    }

    /// <summary>
    /// The envelope receiver information.
    /// </summary>
    public EnvelopeReceiverDto EnvelopeReceiver
    { 
        get => _envelopeReceiver!;
        init => _envelopeReceiver = value;
    }

    /// <summary>
    /// The PSPDFKit annotation data.
    /// </summary>
    [Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
    public PsPdfKitAnnotation? PsPdfKitAnnotation { get; init; }
}

/// <summary>
/// Handles the sign command. All work is done by pipeline behaviors.
/// This handler is intentionally empty - behaviors handle all the processing.
/// </summary>
public class SignCommandHandler : IRequestHandler<SignCommand>
{
    /// <summary>
    /// Executes the signing command. Pipeline behaviors handle all processing.
    /// </summary>
    /// <param name="request"></param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    public Task Handle(SignCommand request, CancellationToken cancellationToken = default)
    {
        return Task.CompletedTask;
    }
}