using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Dapper;
using GB5Shared.CriteriaHandler;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using Newtonsoft.Json;
using PayRollDAL.DTO.EmployeeExperience;
using PayRollDAL.Query.EmployeeExperience;

namespace PayRollDAL.CustomeCode.EmployeeExperience
{
    public class EmployeeExperienceDAL : IEmployeeExperienceDAL
    {
        private readonly IQueryExecutor _queryExecutor;
        private readonly Dapr.Client.DaprClient _daprClient;
        private readonly IValidation _Validation;

        public EmployeeExperienceDAL(IQueryExecutor queryExecutor, Dapr.Client.DaprClient DaprClient, IValidation IValidation)
        {
            _queryExecutor = queryExecutor;
            _daprClient = DaprClient;
            _Validation = IValidation;
        }

        public async Task<int> SaveEmployeeExperience(EmployeeExperienceDTO EmployeeExperienceDTO, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = EmployeeExperienceQB.SAVE_EMPLOYEEEXPERIENCE;
                return await _queryExecutor.ExecuteAsync(LoginDTO, Sql, EmployeeExperienceDTO);
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.SaveErrorMessage}");
                throw new Exception(Error);
            }
        }

        public async Task<int> UpdateEmployeeExperience(EmployeeExperienceDTO EmployeeExperienceDTO, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = EmployeeExperienceQB.UPDATE_EMPLOYEEEXPERIENCE;
                return await _queryExecutor.ExecuteAsync(LoginDTO, Sql, EmployeeExperienceDTO);
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.UpdateErrorMessage}");
                throw new Exception(Error);
            }
        }

        public async Task<string> DeleteEmployeeExperience(int EmployeeId, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = EmployeeExperienceQB.DELETE_EMPLOYEEEXPERIENCE;
                var Parameters = new { employeeid = EmployeeId };
                int result = await _queryExecutor.ExecuteAsync(LoginDTO, Sql, Parameters);

                if (result > 0)
                {
                    return $"{SuccessResponse.DeleteSuccessMessage}";
                }
                else
                {
                    return $"{ErrorResponse.DeleteNotFoundMessage}";
                }
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.DeleteErrorMessage}");
                throw new Exception(Error);
            }
        }

        public async Task<string> GetSelectListEmployeeExperience(int FirstNumber, int MaxResult, CriteriaDTO CriteriaDTO, LoginDTO LoginDTO, bool IsCount = false)
        {
            try
            {
                string SQL = EmployeeExperienceQB.GET_SELECTLIST_EMPLOYEEEXPERIENCE;

                // Build the criteria WHERE clause (parameterised) and inject it into the
                // CTE, so filtering happens before ROW_NUMBER()/paging.
                var parameters = new DynamicParameters();
                parameters.Add("firstnumber", FirstNumber);
                parameters.Add("maxresult", MaxResult);

                var (whereClause, finalParameters) = CriteriaBuilder.Build(CriteriaDTO, parameters, SQL);
                SQL = SQL.Replace("{DYNAMIC_WHERE}", whereClause ?? string.Empty);

                string Json = "";
                if (IsCount == false)
                {
                    List<EmployeeExperiencePicklistDTO> EmployeeExperiencePicklistDTO = (await _queryExecutor.QueryAsync<EmployeeExperiencePicklistDTO>(LoginDTO, SQL, finalParameters)).ToList();

                    Json = JsonConvert.SerializeObject(EmployeeExperiencePicklistDTO);
                }
                else
                {
                    int Count = 0;
                    Json = Count.ToString();
                }
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}