using FastEndpoints;
using FrameworkBLL.GOP;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace FrameworkSL.Endpoints.GOP.Mapping
{
    // Only a Draft version can be deleted — IMappingBLL.DeleteMappingVersion throws
    // ArgumentException for an Active/Archived version; that surfaces as a normal
    // validation error response, not a 500.
    public class DeleteMappingVersion
        : BaseEndpoint<DeleteMappingVersion.Params, GB5Shared.DTO.Framework.ResponseStandard.ResponseStandardDTO<object>>
    {
        private readonly IMappingBLL _Bll;

        public DeleteMappingVersion(IMappingBLL bll) => _Bll = bll;

        public override void Configure()
        {
            Delete("/Mapping/DeleteMappingVersion");
            AllowAnonymous();
        }

        public record Params(
            [property: QueryParam] int    MappingVersionId,
            [property: FromHeader] string Login
        );

        protected override string? GetCacheKey(Params req, LoginDTO loginDTO) => null;

        protected override async Task<GB5Shared.DTO.Framework.ResponseStandard.ResponseStandardDTO<object>> ExecuteAsync(
            Params req, LoginDTO loginDTO, CancellationToken ct)
        {
            var result = await _Bll.DeleteMappingVersion(req.MappingVersionId, loginDTO, ct);
            return await GB5Shared.ResponseStandard.Response
                .CreateSuccessResponse(result, CacheKeyLevel.NOT_REQUIRED, loginDTO);
        }
    }
}