using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using System.ComponentModel.DataAnnotations;
using TMSDAL.CustomCode.EvaluationTemplate;
using TMSDAL.DTO.EvaluationTemplate;

namespace TMSBLL.EvaluationTemplate
{
    public class EvaluationTemplateBLL : IEvaluationTemplateBLL
    {
        private readonly IEvaluationTemplateDAL _EvaluationTemplateDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public EvaluationTemplateBLL(
            IEvaluationTemplateDAL evaluationTemplateDAL,
            AutoNumber autoNumber,
            IValidation validation)
        {
            _EvaluationTemplateDAL = evaluationTemplateDAL;
            _AutoNumber = autoNumber;
            _Validation = validation;
        }

        public async Task<string> GetEvaluationTemplate(int evaluationTemplateId, LoginDTO loginDTO)
        {
            try { return await _EvaluationTemplateDAL.GetEvaluationTemplate(evaluationTemplateId, loginDTO); }
            catch (Exception) { throw; }
        }

        public async Task<string> GetEvaluationTemplateList(int evaluationPlanId, LoginDTO loginDTO)
        {
            try { return await _EvaluationTemplateDAL.GetEvaluationTemplateList(evaluationPlanId, loginDTO); }
            catch (Exception) { throw; }
        }

        public async Task<string> GetSelectListEvaluationTemplate(CriteriaDTO criteriaDTO, LoginDTO loginDTO)
            => await _EvaluationTemplateDAL.GetSelectListEvaluationTemplate(criteriaDTO, loginDTO);

        public async Task<string> SaveEvaluationTemplate(EvaluationTemplateDTO dto, LoginDTO loginDTO)
        {
            if (dto == null) throw new ArgumentNullException(nameof(dto));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                await _Validation.NotEmpty(dto.TemplateTitle, nameof(dto.TemplateTitle));
                await _Validation.NotEmpty(dto.QuestionsJson, nameof(dto.QuestionsJson));

                string message;
                if (dto.EvaluationTemplateId == 0)
                {
                    autoNumberDTO = await _AutoNumber.GetAutoNumber(1, "EVALUATIONTEMPLATE", loginDTO);
                    dto.EvaluationTemplateId = autoNumberDTO.StartNumber;
                    await _EvaluationTemplateDAL.SaveEvaluationTemplate(dto, loginDTO);
                    message = string.Format(SuccessResponse.SaveSuccessWithName, dto.TemplateTitle);
                }
                else
                {
                    await _EvaluationTemplateDAL.UpdateEvaluationTemplate(dto, loginDTO);
                    message = string.Format(SuccessResponse.UpdateSuccessWithName, dto.TemplateTitle);
                }
                return message;
            }
            catch (ValidationException vex) { throw new Exception(vex.Message); }
            catch (Exception)
            {
                if (autoNumberDTO != null && dto.EvaluationTemplateId > 0)
                    await _AutoNumber.RollbackAutoNumber("EVALUATIONTEMPLATE", dto.EvaluationTemplateId, loginDTO);
                throw;
            }
        }

        public async Task<string> DeleteEvaluationTemplate(int evaluationTemplateId, LoginDTO loginDTO)
        {
            try { return await _EvaluationTemplateDAL.DeleteEvaluationTemplate(evaluationTemplateId, loginDTO); }
            catch (Exception) { throw; }
        }

        public async Task<string> DeleteEvaluationTemplatesByPlan(int evaluationPlanId, LoginDTO loginDTO)
        {
            try
            {
                int rows = await _EvaluationTemplateDAL.DeleteEvaluationTemplatesByPlan(evaluationPlanId, loginDTO);
                return rows > 0
                    ? $"{SuccessResponse.DeleteSuccessMessage} {rows} template(s) removed."
                    : ErrorResponse.DeleteNotFoundMessage;
            }
            catch (Exception) { throw; }
        }
    }
}