using PostFundManagement.Application.Evidence;
using PostFundManagement.Domain.Abstractions;
using PostFundManagement.Domain.Api;
using PostFundManagement.Domain.Extensions;

namespace PostFundManagement.Api.Endpoints.Evidence;

[ApiVersionTarget(1)]
public class UploadEvidenceFilesEndpoint : IEndpoint
{
    public void Map(IEndpointRouteBuilder builder)
    {
        builder.MapPost("api/evidence/files", async (HttpRequest request, ClaimsPrincipal principal, EvidenceService service, CancellationToken cancellationToken = default) =>
        {
            var sidClaim = principal.FindFirst("sid")?.Value ?? principal.FindFirst(ClaimTypes.Sid)?.Value;

            if (!Guid.TryParse(sidClaim, out var userId))
                return Results.BadRequest("Missing or invalid 'sid' claim.");

            if (!request.HasFormContentType)
                return Results.BadRequest("Request must be a multipart form.");

            var form = await request.ReadFormAsync(cancellationToken);
            var file = form.Files.GetFile("file");

            if (file == null || file.Length == 0)
                return Results.BadRequest("No file uploaded or file is empty.");

            var result = await service.UploadEvidenceFileAsync(userId, form, file, cancellationToken);

            return result.IsSuccess
                ? Results.Created()
                : Results.BadRequest("Evidence upload failed");
        })
        .RequireAuthorization()
        .DisableAntiforgery()
        .WithDescription("Upload supporting evidence file to S3 and register metadata (M14)")
        .WithName(typeof(UploadEvidenceFilesEndpoint).ToEndpointName())
        .MapToApiVersion(new ApiVersion(1))
        .Produces(StatusCodes.Status200OK)
        .Produces(StatusCodes.Status400BadRequest)
        .Produces(StatusCodes.Status401Unauthorized)
        .WithTags(EndpointTags.Evidence);
    }
}