using Hutopy.Modules.Messaging.Data;
using Hutopy.Modules.Messaging.Models;

namespace Hutopy.Modules.Messaging.Handlers;

[PublicAPI]
public sealed class GetMessagesRequest
{
    public Guid SubjectId { get; set; }
    [BindFrom("page_size")] public int PageSize { get; set; } = 10;
    [BindFrom("last_id")] public Guid? LastId { get; set; }
}

[PublicAPI]
public record struct GetMessagesResponse(
    IEnumerable<MessageDto> Messages);

public class GetMessages(
    MessagingDbContext context)
    : Endpoint<GetMessagesRequest, GetMessagesResponse>
{
    public override void Configure()
    {
        Get("/api/messages/{SubjectId:guid}");
        Options(o => o.WithTags("Messages"));
        AllowAnonymous();
    }

    public override async Task HandleAsync(
        GetMessagesRequest req,
        CancellationToken ct)
    {
        IEnumerable<MessageDto> messages = await context.GetMessagesAsync(
            req.SubjectId,
            null,
            req.LastId,
            req.PageSize,
            ct);

        await SendOkAsync(new GetMessagesResponse(messages), ct);
    }
}