mycorerepository/MyCore/Services/RoomService.cs

using MyCore.Interfaces.DTO;
using MyCore.Interfaces.Models;
using MyCore.Services;
using MyCore.Services.MyControlPanel;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace MyCore.Service
{
    public class RoomService
    {
        public static RoomDetailDTO CreateOrUpdate(RoomDatabaseService _RoomDatabaseService, DeviceDatabaseService _DeviceDatabaseService, string homeId, RoomCreateOrUpdateDetailDTO roomCreateOrUpdateDetailDTO, bool create)
        {
            List<Device> devices = new List<Device>();
            Room room;
            if (create)
            {
                room = new Room();
                room.CreatedDate = DateTime.Now;
            }
            else
            {
                room = _RoomDatabaseService.GetById(roomCreateOrUpdateDetailDTO.Id);
            }

            room.HomeId = homeId;
            room.Name = roomCreateOrUpdateDetailDTO.Name;
            room.UpdatedDate = DateTime.Now;

            List<Device> currentDevices = _DeviceDatabaseService.GetByIds(roomCreateOrUpdateDetailDTO.DeviceIds); // A device cannot have multiple rooms. Filter list 
            currentDevices = currentDevices.Where(c => c.RoomId == null).ToList(); // TODO add exception or something

            if (create)
            {
                room.DevicesIds = currentDevices.Select(c => c.Id).ToList();
                room = _RoomDatabaseService.Create(room);
            }
            else
            {
                room.DevicesIds.AddRange(currentDevices.Select(c => c.Id).ToList());
                room = _RoomDatabaseService.Update(room);
            }

            foreach (var deviceId in roomCreateOrUpdateDetailDTO.DeviceIds)
            {
                Device device = _DeviceDatabaseService.GetById(deviceId);
                devices.Add(device);
                device.RoomId = room.Id;
                _DeviceDatabaseService.Update(device);
            }

            return room.ToDTO(devices.Select(d => d.ToDTO()).ToList());
        }
    }
}