using AccountsBLL.AccountTree;
using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace AccountsSL.EndPoints.AccountTree
{
    // One page of Account leaves for a single Group — called only when that Group node is
    // expanded client-side. Mirrors GetSelectListPartyBranch.cs's FirstNumber/MaxResult
    // QueryParam shape.
    public class GetAccountTreeLeaves : BaseEndpoint<GetAccountTreeLeaves.GetAccountTreeLeavesParameters, ResponseStandardDTO<object>>
    {
        private readonly IAccountTreeBLL _AccountTreeBLL;

        public GetAccountTreeLeaves(IAccountTreeBLL accountTreeBLL) => _AccountTreeBLL = accountTreeBLL;

        public override void Configure()
        {
            Post("/AccountTree/GetAccountTreeLeaves");
            AllowAnonymous();
        }

        public record GetAccountTreeLeavesParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int    AccountGroupId,
            [property: QueryParam] int    FirstNumber,
            [property: QueryParam] int    MaxResult
        );

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            GetAccountTreeLeavesParameters req, LoginDTO LoginDTO, CancellationToken ct)
        {
            try
            {
                var result = await _AccountTreeBLL.GetAccountTreeLeaves(
                    req.AccountGroupId, req.FirstNumber, req.MaxResult, LoginDTO!, ct);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.CLIENT_LEVEL, LoginDTO);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, CacheKeyLevel.CLIENT_LEVEL, LoginDTO, ex.Message, 500);
            }
        }
    }
}