eyes-and-ears/src/EyesAndEars.UWP/EyesAndEars.UWP/ViewModels/MainPageVM.cs

using EyesAndEars.UWP.Models;
using System.ComponentModel;

namespace EyesAndEars.UWP.ViewModels {
    public class MainPageVM : INotifyPropertyChanged {

        /* Note: Why I did not use a collection of some sort and hard-coded the
         * objects instead.
         * ====================================================================
         * Because the projects requirements are fixed in-place and this
         * program does not have long-term requirements, I decided to not worry
         * about long-term maintenance benefits. If something comes from this
         * projects afterwards, the duplicated nature of the code below will
         * probably need refacorting but I will leave that to the person
         * needing to make that call at that time.
         */

        public MainPageVM() { }

        public MainPageVM(FactoryDevice f1, FactoryDevice f2, FactoryDevice f3,
            GalleryDevice g1, GalleryDevice g2, GalleryDevice g3) {
            
            FactoryDevice1 = f1;
            FactoryDevice2 = f2;
            FactoryDevice3 = f3;
            GalleryDevice1 = g1;
            GalleryDevice2 = g2;
            GalleryDevice3 = g3;
        }

        FactoryDevice _factoryDevice1;
        public  FactoryDevice FactoryDevice1 {
            get { return _factoryDevice1; }
            set {
                if(value != _factoryDevice1) {
                    _factoryDevice1 = value;
                    NotifyPropertyChanged("FactoryDevice1");
                }
            }
        }

        FactoryDevice _factoryDevice2;
        public FactoryDevice FactoryDevice2 {
            get { return _factoryDevice2; }
            set {
                if (value != _factoryDevice2) {
                    _factoryDevice2 = value;
                    NotifyPropertyChanged("FactoryDevice2");
                }
            }
        }

        FactoryDevice _factoryDevice3;
        public FactoryDevice FactoryDevice3 {
            get { return _factoryDevice3; }
            set {
                if (value != _factoryDevice3) {
                    _factoryDevice3 = value;
                    NotifyPropertyChanged("FactoryDevice3");
                }
            }
        }

        GalleryDevice _galleryDevice1;
        public GalleryDevice GalleryDevice1 {
            get { return _galleryDevice1; }
            set {
                if (value != _galleryDevice1) {
                    _galleryDevice1 = value;
                    NotifyPropertyChanged("GalleryDevice1");
                }
            }
        }

        GalleryDevice _galleryDevice2;
        public GalleryDevice GalleryDevice2 {
            get { return _galleryDevice2; }
            set {
                if (value != _galleryDevice2) {
                    _galleryDevice2 = value;
                    NotifyPropertyChanged("GalleryDevice2");
                }
            }
        }

        GalleryDevice _galleryDevice3;
        public GalleryDevice GalleryDevice3 {
            get { return _galleryDevice3; }
            set {
                if (value != _galleryDevice3) {
                    _galleryDevice3 = value;
                    NotifyPropertyChanged("GalleryDevice3");
                }
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected void NotifyPropertyChanged(string info) {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(info));
        }
    }
}