using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using KmsDAL.CustomCode.KmSpace;
using KmsDAL.DTO.KmSpace;

namespace KmsBLL.KmSpace
{
    public class KmSpaceBLL : IKmSpaceBLL
    {
        private readonly IKmSpaceDAL _dal;
        private readonly AutoNumber _autoNumber;
        private readonly IValidation _validation;

        public KmSpaceBLL(IKmSpaceDAL dal, AutoNumber autoNumber, IValidation validation)
        {
            _dal = dal;
            _autoNumber = autoNumber;
            _validation = validation;
        }

        public async Task<string> GetKmSpace(int spaceId, LoginDTO login, CancellationToken ct)
            => await _dal.GetKmSpace(spaceId, login, ct);

        public async Task<string> GetSelectListKmSpace(LoginDTO login, CancellationToken ct)
            => await _dal.GetSelectListKmSpace(login, ct);

        public async Task<string> SaveKmSpace(KmSpaceDTO dto, LoginDTO login, CancellationToken ct)
        {
            await _validation.NotEmpty(dto.SpaceCode, nameof(dto.SpaceCode));
            await _validation.NotEmpty(dto.SpaceName, nameof(dto.SpaceName));

            var duplicateCount = await _dal.GetKmSpaceCodeCount(dto.SpaceCode, dto.SpaceId, login, ct);
            if (duplicateCount > 0)
                throw new InvalidOperationException($"Space code '{dto.SpaceCode}' already exists.");

            dto.TenantId = login.ClientId;
            bool isNew = dto.SpaceId == 0;

            if (isNew)
            {
                var autoNum = await _autoNumber.GetNumberAsync(1, "KMSPACE", login);
                dto.SpaceId = autoNum.StartNumber;
                dto.CreatedById = login.UserId;
                dto.ModifiedById = login.UserId;
                await _dal.SaveKmSpace(dto, login, ct);
                return $"{SuccessResponse.SaveSuccessMessage} {dto.SpaceId}";
            }
            else
            {
                dto.ModifiedById = login.UserId;
                await _dal.UpdateKmSpace(dto, login, ct);
                return $"{SuccessResponse.UpdateSuccessMessage} {dto.SpaceId}";
            }
        }

        public async Task<string> DeleteKmSpace(int spaceId, LoginDTO login, CancellationToken ct)
        {
            await _dal.DeleteKmSpace(spaceId, login, ct);
            return SuccessResponse.DeleteSuccessMessage;
        }
    }
}