using ServiceStationContracts.BindingModels;
using ServiceStationContracts.SearchModels;
using ServiceStationContracts.ViewModels;
using ServiceStationsContracts.StorageContracts;
using ServiceStationsDataBaseImplement.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.NetworkInformation;
using System.Text;
using System.Threading.Tasks;

namespace ServiceStationsDataBaseImplement.Implements {
    public class TaskStorage : ITaskStorage {
        public TaskViewModel? Insert(TaskBindingModel model) {
            var newRec = TaskByWork.Create(model);
            if (newRec == null) {
                return null;
            }
            using var context = new Database();
            context.Tasks.Add(newRec);
            context.SaveChanges();
            return newRec.GetViewModel;
        } 

        public TaskViewModel? Update(TaskBindingModel model) {
            using var context = new Database();
            var recUp = context.Tasks.FirstOrDefault(x => x.Id == model.Id);
            if (recUp == null) {
                return null;            
            }
            recUp.Update(model);
            context.SaveChanges();
            return recUp.GetViewModel;
        }

        public TaskViewModel? Delete(TaskBindingModel model) {
            using var context = new Database();
            var recDel = context.Tasks.FirstOrDefault(x => x.Id == model.Id);
            if (recDel != null) {
                context.Tasks.Remove(recDel);
                context.SaveChanges();
                return recDel.GetViewModel;
            }
            return null;
        }

        public TaskViewModel? GetElement(TaskSearchModel model) {
            using var context = new Database();
            if (model.Id.HasValue) {
                return context.Tasks
                    .FirstOrDefault(x => x.Id == model.Id)
                    ?.GetViewModel;
            }
            else {
                return context.Tasks
                    .FirstOrDefault(x => x.Name == model.Name)
                    ?.GetViewModel;
            }
        }

        public List<TaskViewModel> GetFullList() {
            using var context = new Database();
            return context.Tasks.Select(x => x.GetViewModel).ToList();
        }

    }
}