using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using MMDAL.DTO.ItemTemplate;
using MMDAL.Query.ItemTemplatePart;
using Newtonsoft.Json;

namespace MMDAL.CustomCode.ItemTemplatePart
{
    public class ItemTemplatePartDAL : IItemTemplatePartDAL
    {
        private readonly IQueryExecutor _QueryExecutor;
        private readonly IValidation _Validation;

        public ItemTemplatePartDAL(IQueryExecutor QueryExecutor,IValidation IValidation)
        {
            _QueryExecutor = QueryExecutor;
            _Validation = IValidation;
        }

        public async Task<string> GetItemTemplatePart(int ItemTemplatePartId, LoginDTO LoginDTO)
        {
            try
            {
                var sql = ItemTemplatePartQB.GET_ITEMTEMPLATEPART;
                var parameters = new { itemtemplatepartid = ItemTemplatePartId };

                var ItemTemplatePartDict = new Dictionary<int, ItemTemplatePartDTO>();

                var result = await _QueryExecutor.QueryMultiMapAsync<ItemTemplatePartDTO, ItemTemplatePartVsParameterDTO, ItemTemplatePartDTO>(
                    LoginDTO,
                    sql,
                    (parent, child) =>
                    {
                        if (!ItemTemplatePartDict.TryGetValue(parent.ItemTemplatePartId, out var existingParent))
                        {
                            existingParent = parent;
                            existingParent.ItemTemplatePartVsParameterArray = new List<ItemTemplatePartVsParameterDTO>();
                            ItemTemplatePartDict[parent.ItemTemplatePartId] = existingParent;
                        }

                        if (child != null && child.ItemTemplatePartVsParameterId != 0)
                        {
                            existingParent.ItemTemplatePartVsParameterArray.Add(child);
                        }

                        return existingParent;
                    },
                    parameters,
                    splitOn: "ItemTemplatePartVsParameterId"
                );

                var finalResult = ItemTemplatePartDict.Values.FirstOrDefault();
                return JsonConvert.SerializeObject(finalResult);
            }
            catch (Exception ex)
            {
                throw new Exception($"Failed to retrieve ItemTemplatePart data: {ex.Message}", ex);
            }
        }

        public async Task<string> GetSelectListItemTemplatePart(CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                string SQL = ItemTemplatePartQB.GET_SELECTLIST_ITEMTEMPLATEPART;
                var Result = await _QueryExecutor.QueryAsync<ItemTemplatePartPicklistDTO>(LoginDTO, SQL, null!);
                string Json = JsonConvert.SerializeObject(Result);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
        }


        public async Task<int> SaveItemTemplatePart(ItemTemplatePartDTO ItemTemplatePartDTO, LoginDTO LoginDTO)
        {
            try
            {
                const string Sql = ItemTemplatePartQB.SAVE_ITEMTEMPLATEPART;
                return await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, ItemTemplatePartDTO);
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.SaveErrorMessage}");
                throw new Exception(Error);
            }
        }

        public async Task<int> UpdateItemTemplatePart(ItemTemplatePartDTO ItemTemplatePartDTO, LoginDTO LoginDTO)
        {
            try
            {
                const string Sql = ItemTemplatePartQB.UPDATE_ITEMTEMPLATEPART;
                return await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, ItemTemplatePartDTO);
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.UpdateErrorMessage}");
                throw new Exception(Error);
            }
        }



        public async Task<string> DeleteItemTemplatePart(int ItemTemplatePartId, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = ItemTemplatePartQB.DELETE_ITEMTEMPLATEPART;
                var parameter = new { itemtemplatepartid = ItemTemplatePartId };
                var result = await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, parameter);

                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);
            }
        }
    }
}