using System.Collections.Generic;
using FastEndpoints;
using FrameworkBLL.MenuGroup;
using FrameworkDAL.DTO.MenuGroup;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace FrameworkSL.Endpoints.MenuGroup
{
    // Diff-based membership save — the client sends the group's full current leaf list on
    // every save (add/update rows as normal, omit a row to remove it); the BLL/DAL reconcile
    // against existing MMENUGROUPDETAIL rows rather than delete-all-then-reinsert.
    // Bundle-author-level write — see SaveMenuGroup.cs for the authorization deferral note.
    public class SaveMenuGroupDetail : BaseEndpoint<SaveMenuGroupDetail.SaveMenuGroupDetailParameters, ResponseStandardDTO<object>>
    {
        private readonly IMenuGroupBLL _menuGroupBLL;

        public SaveMenuGroupDetail(IMenuGroupBLL menuGroupBLL) => _menuGroupBLL = menuGroupBLL;

        public override void Configure()
        {
            Post("/MenuGroup/SaveMenuGroupDetail");
            AllowAnonymous();
        }

        public record SaveMenuGroupDetailParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int MenuGroupId,
            [property: FromBody] List<MenuGroupDetailDTO> Leaves
        );

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

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            SaveMenuGroupDetailParameters req, LoginDTO loginDTO, CancellationToken ct)
        {
            var result = await _menuGroupBLL.SaveMenuGroupDetail(req.MenuGroupId, req.Leaves, loginDTO, ct);
            return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.CLIENT_LEVEL, loginDTO);
        }
    }
}