using AutoMapper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using TTSW.EF;
using TTSW.Utils;
using TTSW.Constant;
using TTSW.Common;
using TodoAPI2.Models;
using System.IO;
using System.Web;
using System.Net;
using TTSW.Configure;
using Microsoft.Extensions.Options;
using System.Data;

namespace TodoAPI2.Models
{
    public class eva_create_evaluationService : Ieva_create_evaluationService
    {
        private IBaseRepository2<eva_create_evaluationEntity, int> _repository;
		private IMyDatabase db;
		private Iexternal_linkageService ext;
        private Iexternal_employeeService emp;
        private Ieva_create_evaluation_detailService create_detail;

        public eva_create_evaluationService(IBaseRepository2<eva_create_evaluationEntity, int> repository, IMyDatabase mydb, 
            Iexternal_linkageService inext, Iexternal_employeeService inemp,
            Ieva_create_evaluation_detailService in_create_detail)
        {
            _repository = repository;
			db = mydb;
			ext = inext;
            emp = inemp;
            create_detail = in_create_detail;
        }

        #region Private Functions
        private eva_create_evaluationEntity GetEntity(eva_create_evaluationInputModel model)
        {
            return Mapper.Map<eva_create_evaluationEntity>(model);
        }
        private List<eva_create_evaluationEntity> GetEntityList(List<eva_create_evaluationInputModel> models)
        {
            return Mapper.Map<List<eva_create_evaluationEntity>>(models);
        }
        private eva_create_evaluationViewModel GetDto(eva_create_evaluationEntity entity)
        {
            return Mapper.Map<eva_create_evaluationViewModel>(entity);
        }
        private List<eva_create_evaluationViewModel> GetDtoList(List<eva_create_evaluationEntity> entities)
        {
            return Mapper.Map<List<eva_create_evaluationViewModel>>(entities);
        }
       
        #endregion

        #region Public Functions
        #region Query Functions

        public eva_create_evaluationViewModel Get(int id)
        {
            var entity = _repository.Get(id);

            return GetDto(entity);
        }
        public eva_create_evaluationWithSelectionViewModel GetWithSelection(int id)
        {
            var all_emp = emp.GetListByemployee_type(null, null);

            var entity = _repository.Get(id);
            var i = Mapper.Map<eva_create_evaluationWithSelectionViewModel>(entity);
            i.item_performance_plan_id = (from x in _repository.Context.eva_performance_plan select x).ToList();
            i.item_employee_id = all_emp;
            i.item_evaluation_group_id = (from x in _repository.Context.eva_evaluation_group select x).ToList();
            i.item_supervisor1_id = all_emp;
            i.item_supervisor2_id = all_emp;

            return i;
        }
        public eva_create_evaluationWithSelectionViewModel GetBlankItem()
        {
            var all_emp = emp.GetListByemployee_type(null, null);

            var i = new eva_create_evaluationWithSelectionViewModel();
            i.item_performance_plan_id = (from x in _repository.Context.eva_performance_plan select x).ToList();
            i.item_employee_id = all_emp;
            i.item_evaluation_group_id = (from x in _repository.Context.eva_evaluation_group select x).ToList();
            i.item_supervisor1_id = all_emp;
            i.item_supervisor2_id = all_emp;

            return i;
        }

        public List<eva_create_evaluationViewModel> GetListByperformance_plan_id(Guid? performance_plan_id)
        {
            var model = new eva_create_evaluationSearchModel();
            model.performance_plan_id = performance_plan_id;
            return GetListBySearch(model);
        }

		public List<eva_create_evaluationViewModel> GetListBySearch(eva_create_evaluationSearchModel model)
        {
            var all_emp = emp.GetListByemployee_type(null, null);

            var data = (
                from m_eva_create_evaluation in _repository.Context.eva_create_evaluation

                join fk_eva_performance_plan1 in _repository.Context.eva_performance_plan on m_eva_create_evaluation.performance_plan_id equals fk_eva_performance_plan1.id
                into eva_performance_planResult1
                from fk_eva_performance_planResult1 in eva_performance_planResult1.DefaultIfEmpty()

                join fk_external_linkage2 in all_emp on m_eva_create_evaluation.employee_id equals fk_external_linkage2.id
                into external_linkageResult2
                from fk_external_linkageResult2 in external_linkageResult2.DefaultIfEmpty()

                join fk_eva_evaluation_group5 in _repository.Context.eva_evaluation_group on m_eva_create_evaluation.evaluation_group_id equals fk_eva_evaluation_group5.id
                into eva_evaluation_groupResult5
                from fk_eva_evaluation_groupResult5 in eva_evaluation_groupResult5.DefaultIfEmpty()

                join fk_external_linkage6 in all_emp on m_eva_create_evaluation.supervisor1_id equals fk_external_linkage6.id
                into external_linkageResult6
                from fk_external_linkageResult6 in external_linkageResult6.DefaultIfEmpty()

                join fk_external_linkage7 in all_emp on m_eva_create_evaluation.supervisor2_id equals fk_external_linkage7.id
                into external_linkageResult7
                from fk_external_linkageResult7 in external_linkageResult7.DefaultIfEmpty()

                where 1==1
                && (m_eva_create_evaluation.performance_plan_id == model.performance_plan_id || !model.performance_plan_id.HasValue)
                && (m_eva_create_evaluation.evaluation_group_id == model.evaluation_group_id || !model.evaluation_group_id.HasValue)


                orderby m_eva_create_evaluation.created descending
                select new eva_create_evaluationViewModel()
                {
                    id = m_eva_create_evaluation.id,
                    performance_plan_id = m_eva_create_evaluation.performance_plan_id,
                    employee_id = m_eva_create_evaluation.employee_id,
                    score1 = m_eva_create_evaluation.score1,
                    score2 = m_eva_create_evaluation.score2,
                    evaluation_group_id = m_eva_create_evaluation.evaluation_group_id,
                    supervisor1_id = m_eva_create_evaluation.supervisor1_id,
                    supervisor2_id = m_eva_create_evaluation.supervisor2_id,

                    performance_plan_id_eva_performance_plan_fiscal_year = fk_eva_performance_planResult1.display_text,
                    employee_id_external_linkage_external_name = fk_external_linkageResult2.fullname,
                    evaluation_group_id_eva_evaluation_group_code = fk_eva_evaluation_groupResult5.code,
                    evaluation_group_id_eva_evaluation_group_name = fk_eva_evaluation_groupResult5.thegroup,
                    supervisor1_id_external_linkage_external_name = fk_external_linkageResult6.fullname,
                    supervisor2_id_external_linkage_external_name = fk_external_linkageResult7.fullname,

                    isActive = m_eva_create_evaluation.isActive,
                    Created = m_eva_create_evaluation.created,
                    Updated = m_eva_create_evaluation.updated
                }
            ).ToList();

            return data;
        }


        #endregion

        #region Manipulation Functions

        public int GetNewPrimaryKey()
        {
            int? newkey = 0;

            var x = (from i in _repository.Context.eva_create_evaluation
                    orderby i.id descending
                    select i).Take(1).ToList();

            if(x.Count > 0)
            {
                newkey = x[0].id + 1;
            }

            return newkey.Value;
        }

        public eva_create_evaluationViewModel Insert(eva_create_evaluationInputModel model)
        {
            var entity = GetEntity(model);
            entity.id = GetNewPrimaryKey();

            var inserted = _repository.Insert(entity);

            var selected_emp = (from i in _repository.Context.eva_evaluation_group_detail
                    where i.evaluation_group_id == model.evaluation_group_id
                    select i.employee_id.Value).ToList();

            create_detail.AddMultiple(entity.id, selected_emp);

            return Get(inserted.id);
        }

        public eva_create_evaluationViewModel Update(int id, eva_create_evaluationInputModel model)
        {
            var existingEntity = _repository.Get(id);
            if (existingEntity != null)
            {
                existingEntity.performance_plan_id = model.performance_plan_id;
                existingEntity.employee_id = model.employee_id;
                existingEntity.score1 = model.score1;
                existingEntity.score2 = model.score2;
                existingEntity.evaluation_group_id = model.evaluation_group_id;
                existingEntity.supervisor1_id = model.supervisor1_id;
                existingEntity.supervisor2_id = model.supervisor2_id;


                var updated = _repository.Update(id, existingEntity);
                return Get(updated.id);
            }
            else
            throw new NotificationException("No data to update");
        }

		public string UpdateMultiple(List<eva_create_evaluationInputModel> model)
        {
            foreach(var i in model)
            {
                if (i.active_mode == "1" && i.id.HasValue) // update
                {                    
                    var existingEntity = _repository.Get(i.id.Value);
                    if (existingEntity != null)
                    {
                        existingEntity.performance_plan_id = i.performance_plan_id;
                        existingEntity.employee_id = i.employee_id;
                        existingEntity.score1 = i.score1;
                        existingEntity.score2 = i.score2;
                        existingEntity.evaluation_group_id = i.evaluation_group_id;
                        existingEntity.supervisor1_id = i.supervisor1_id;
                        existingEntity.supervisor2_id = i.supervisor2_id;


                        _repository.UpdateWithoutCommit(i.id.Value, existingEntity);
                    }
                }
                else if (i.active_mode == "1" && !i.id.HasValue) // add
                {
                    var entity = GetEntity(i);
                    entity.id = GetNewPrimaryKey();
                    _repository.InsertWithoutCommit(entity);
                }
                else if (i.active_mode == "0" && i.id.HasValue) // remove
                {                    
                    _repository.DeleteWithoutCommit(i.id.Value);
                }
                else if (i.active_mode == "0" && !i.id.HasValue)
                {
                    // nothing to do
                }                
            }
			_repository.Context.SaveChanges();

            return model.Count().ToString();
        }

        public eva_create_evaluationViewModel SetAsActive(int id)
        {
            var updated = _repository.SetAsActive(id);

            return Get(updated.id);
        }
        public eva_create_evaluationViewModel SetAsInactive(int id)
        {
            var updated = _repository.SetAsInActive(id);

            return Get(updated.id);
        }
        public void Delete(int id)
        {
            var p = from i in _repository.Context.eva_adjust_postponement
                    where i.create_evaluation_id == id
                    select i;

            foreach(var j in p)
            {
                var p2 = from i in _repository.Context.eva_adjust_postponement_detail
                         where i.adjust_postponement_id == j.id
                         select i;
                _repository.Context.eva_adjust_postponement_detail.RemoveRange(p2);
            }

            _repository.Context.eva_adjust_postponement.RemoveRange(p);

            var p3 = from i in _repository.Context.eva_create_evaluation_detail
                     where i.create_evaluation_id == id
                     select i;

            foreach(var k in p3)
            {
                var p4 = from i in _repository.Context.eva_evaluation_behavior
                         where i.create_evaluation_detail_id == k.id
                         select i;
                _repository.Context.eva_evaluation_behavior.RemoveRange(p4);

                var p5 = from i in _repository.Context.eva_evaluation_achievement
                         where i.create_evaluation_detail_id == k.id
                         select i;
                _repository.Context.eva_evaluation_achievement.RemoveRange(p5);
            }

            _repository.Context.eva_create_evaluation_detail.RemoveRange(p3);

            _repository.Delete(id);

            return;
        }
        #endregion

        #region Match Item

        #endregion

        #endregion
    }
}