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 System.Text.Json;
using TMSDAL.CustomCode.EvaluationInstance;
using TMSDAL.DTO.Evaluation;
using TMSDAL.DTO.EvaluationInstance;

namespace TMSBLL.EvaluationInstance
{
    public class EvaluationInstanceBLL : IEvaluationInstanceBLL
    {
        private readonly IEvaluationInstanceDAL _EvaluationInstanceDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public EvaluationInstanceBLL(
            IEvaluationInstanceDAL evaluationInstanceDAL,
            AutoNumber autoNumber,
            IValidation validation)
        {
            _EvaluationInstanceDAL = evaluationInstanceDAL;
            _AutoNumber = autoNumber;
            _Validation = validation;
        }

        public async Task<string> GetEvaluationInstance(int evaluationInstanceId, LoginDTO loginDTO)
        {
            try { return await _EvaluationInstanceDAL.GetEvaluationInstance(evaluationInstanceId, loginDTO); }
            catch (Exception) { throw; }
        }

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

        public async Task<string> SaveEvaluationInstance(EvaluationInstanceDTO dto, LoginDTO loginDTO)
        {
            if (dto == null) throw new ArgumentNullException(nameof(dto));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                await _Validation.NotEmpty(dto.EvaluationPlanId.ToString(), nameof(dto.EvaluationPlanId));
                await _Validation.NotEmpty(dto.EvaluationTemplateId.ToString(), nameof(dto.EvaluationTemplateId));
                await _Validation.NotEmpty(dto.EmployeeId.ToString(), nameof(dto.EmployeeId));

                dto.TenantId = loginDTO.ClientId;
                dto.ModifiedById = loginDTO.UserId;
                dto.ModifiedOn = DateTime.UtcNow;
                dto.EvalStatus = 0;
                dto.ReminderSentCount = 0;
                dto.SourceType = 5;

                autoNumberDTO = await _AutoNumber.GetAutoNumber(1, "EVALUATIONINSTANCE", loginDTO);
                dto.EvaluationInstanceId = autoNumberDTO.StartNumber;
                dto.CreatedById = loginDTO.UserId;
                dto.CreatedOn = DateTime.UtcNow;

                await _EvaluationInstanceDAL.SaveEvaluationInstance(dto, loginDTO);

                var savedJson = await _EvaluationInstanceDAL.GetEvaluationInstance(dto.EvaluationInstanceId, loginDTO);
                var saved = JsonSerializer.Deserialize<EvaluationInstanceDTO>(
                    savedJson, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });

                return string.Format(SuccessResponse.SaveSuccessWithName, saved?.EmployeeName);
            }
            catch (ValidationException vex) { throw new Exception(vex.Message); }
            catch (Exception)
            {
                if (autoNumberDTO != null && dto.EvaluationInstanceId > 0)
                    await _AutoNumber.RollbackAutoNumber("EVALUATIONINSTANCE", dto.EvaluationInstanceId, loginDTO);
                throw;
            }
        }

        public async Task<string> UpdateEvaluationInstanceStatus(EvaluationInstanceDTO dto, LoginDTO loginDTO)
        {
            if (dto == null) throw new ArgumentNullException(nameof(dto));
            try
            {
                dto.TenantId = loginDTO.ClientId;
                dto.ModifiedById = loginDTO.UserId;
                dto.ModifiedOn = DateTime.UtcNow;

                await _EvaluationInstanceDAL.UpdateEvaluationInstanceStatus(dto, loginDTO);

                var savedJson = await _EvaluationInstanceDAL.GetEvaluationInstance(dto.EvaluationInstanceId, loginDTO);
                var saved = JsonSerializer.Deserialize<EvaluationInstanceDTO>(
                    savedJson, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });

                return string.Format(SuccessResponse.UpdateSuccessWithName, saved?.EmployeeName);
            }
            catch (Exception) { throw; }
        }

        public async Task<string> DeleteEvaluationInstance(int evaluationInstanceId, LoginDTO loginDTO)
        {
            try { return await _EvaluationInstanceDAL.DeleteEvaluationInstance(evaluationInstanceId, loginDTO); }
            catch (Exception) { throw; }
        }
    }
}