using PostFundManagement.Application.Extensions;
using PostFundManagement.Application.Services.Evidence;
using PostFundManagement.Domain.Abstractions;
using PostFundManagement.Domain.Errors;
using PostFundManagement.Domain.Extensions;
using PostFundManagement.Domain.Security;
using Problems = Microsoft.AspNetCore.Mvc.ProblemDetails;

namespace PostFundManagement.Api.Endpoints.Evidence;

[ApiVersionTarget(1)]
public class UploadEvidenceFilesEndpoint : IEndpoint
{
    public void Map(IEndpointRouteBuilder builder)
    {
        builder.MapPost("api/evidence/files", async (HttpRequest request, EvidenceService service, 
            CancellationToken cancellationToken = default) =>
        {
            var userId = request.HttpContext.GetUserId();

            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.");

            return await service.UploadEvidenceFileAsync(userId, form, file, cancellationToken) switch
            {
                { IsSuccess: true } => Results.Ok(),
                var r when r.HasError<CreateError>() => Results.BadRequest(r.Errors.ToProblems()),
                var r => Results.InternalServerError(r.Errors.ToProblems())
            };
        })
        .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<Problems>(StatusCodes.Status400BadRequest)
        .Produces<Problems>(StatusCodes.Status500InternalServerError)
        .Produces(StatusCodes.Status401Unauthorized)
        .WithTags(EndpointTags.Evidence);
    }
}