using BizProcessBLL.Interfaces;
using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace BizProcessSL.Endpoints
{
    public class GetSelectListVariant : BaseEndpoint<GetSelectListVariant.Parameters, ResponseStandardDTO<object>>
    {
        private readonly IBizProcessBLL _BizProcessBLL;

        public GetSelectListVariant(IBizProcessBLL BizProcessBLL) => _BizProcessBLL = BizProcessBLL;

        public override void Configure()
        {
            Get("/BizProcess/GetSelectListVariant");
            AllowAnonymous();
        }

        // BizProcessId omitted/-1 lists every variant for the tenant (flat dropdown across
        // all processes) — a positive id scopes to just that process's variants.
        public record Parameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int BizProcessId = -1
        );

        protected override string? GetCacheKey(Parameters req, LoginDTO login)
            => $"BizProcessVariant:SelectList:{login.ClientId}:{req.BizProcessId}";

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            Parameters req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var data = await _BizProcessBLL.GetSelectListVariant(req.BizProcessId, login, ct);
                return await GB5Shared.ResponseStandard.Response
                    .CreateSuccessResponse(data, CacheKeyLevel.CLIENT_LEVEL, login);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response
                    .CreateExceptionError<string>(ex, CacheKeyLevel.CLIENT_LEVEL, login, ex.Message, 500);
            }
        }
    }
}