DisplayMagician/DisplayMagicianShared/ProfileItem.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using System.Diagnostics;
using WindowsDisplayAPI.DisplayConfig;
using DisplayMagicianShared.Resources;
using Newtonsoft.Json;
using NvAPIWrapper.Mosaic;
using NvAPIWrapper.Native.Mosaic;
using DisplayMagicianShared.Topology;
using System.Drawing;
using System.Drawing.Imaging;
using WindowsDisplayAPI;
using System.Text.RegularExpressions;
using NvAPIWrapper.Display;

namespace DisplayMagicianShared
{
    public class ProfileItem : IComparable
    {
        private static List<ProfileItem> _allSavedProfiles = new List<ProfileItem>();
        private ProfileIcon _profileIcon;
        private Bitmap _profileBitmap, _profileShortcutBitmap;
        private List<string> _profileDisplayIdentifiers = new List<string>();
        //private static List<WindowsDisplayAPI.Display> _availableDisplays;
        //private static List<WindowsDisplayAPI.UnAttachedDisplay> _unavailableDisplays;

        internal static string AppDataPath = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "DisplayMagician");
        private static string uuidV4Regex = @"(?im)^[{(]?[0-9A-F]{8}[-]?(?:[0-9A-F]{4}[-]?){3}[0-9A-F]{12}[)}]?$";

        private string _uuid = "";
        //private Version _version;
        //private bool _isActive = false;
        //private bool _isPossible = false;


        #region JsonConverterBitmap
        internal class CustomBitmapConverter : JsonConverter
        {
            public override bool CanConvert(Type objectType)
            {
                return true;
            }

            //convert from byte to bitmap (deserialize)

            public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
            {
                string image = (string)reader.Value;

                byte[] byteBuffer = Convert.FromBase64String(image);
                MemoryStream memoryStream = new MemoryStream(byteBuffer)
                {
                    Position = 0
                };

                return (Bitmap)Bitmap.FromStream(memoryStream);
            }

            //convert bitmap to byte (serialize)
            public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
            {
                Bitmap bitmap = (Bitmap)value;

                ImageConverter converter = new ImageConverter();
                writer.WriteValue((byte[])converter.ConvertTo(bitmap, typeof(byte[])));
            }

            public static System.Drawing.Imaging.ImageFormat GetImageFormat(Bitmap bitmap)
            {
                ImageFormat img = bitmap.RawFormat;

                if (img.Equals(System.Drawing.Imaging.ImageFormat.Jpeg))
                    return System.Drawing.Imaging.ImageFormat.Jpeg;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Bmp))
                    return System.Drawing.Imaging.ImageFormat.Bmp;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Png))
                    return System.Drawing.Imaging.ImageFormat.Png;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Emf))
                    return System.Drawing.Imaging.ImageFormat.Emf;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Exif))
                    return System.Drawing.Imaging.ImageFormat.Exif;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Gif))
                    return System.Drawing.Imaging.ImageFormat.Gif;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Icon))
                    return System.Drawing.Imaging.ImageFormat.Icon;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.MemoryBmp))
                    return System.Drawing.Imaging.ImageFormat.MemoryBmp;
                if (img.Equals(System.Drawing.Imaging.ImageFormat.Tiff))
                    return System.Drawing.Imaging.ImageFormat.Tiff;
                else
                    return System.Drawing.Imaging.ImageFormat.Wmf;
            }

        }

        #endregion
        public ProfileItem()
        {
            /*try
            {
                // Generate the DeviceIdentifiers ready to be used
                ProfileDisplayIdentifiers = DisplayIdentifier.GetDisplayIdentification();
            }
            catch (Exception ex)
            {
                Console.WriteLine($"ShortcutItem/Instansiation exception: {ex.Message}: {ex.StackTrace} - {ex.InnerException}");
                // ignored
            }*/

        }

        public static Version Version = new Version(2, 1);

        #region Instance Properties

        public string UUID
        {
            get
            {
                if (String.IsNullOrWhiteSpace(_uuid))
                    _uuid = Guid.NewGuid().ToString("D");
                return _uuid;
            }
            set
            {
                Match match = Regex.Match(value, uuidV4Regex, RegexOptions.IgnoreCase);
                if (match.Success)
                    _uuid = value;
            }
        }

        [JsonIgnore]
        public bool IsPossible
        {
            get
            {

                // Get the list of connected devices
                List<string> connectedDisplayIdentifiers = ProfileRepository.GenerateAllAvailableDisplayIdentifiers();

                // Check each display in this profile and make sure it's currently available
                int validDisplayCount = 0;
                foreach (string profileDisplayIdentifier in ProfileDisplayIdentifiers)
                {
                    // If this profile has a display that isn't currently available then we need to say it's a no!
                    if (connectedDisplayIdentifiers.Contains(profileDisplayIdentifier))
                        validDisplayCount++;
                }

                if (validDisplayCount == ProfileDisplayIdentifiers.Count)
                    return true;
                else
                    return false;

            }
        }

        [JsonIgnore]
        public bool IsActive
        {
            get
            {
                
                if (this.Equals(ProfileRepository.CurrentProfile))
                    return true;
                else
                    return false;

            }
        }

        public string Name { get; set; }

        public Topology.Path[] Paths { get; set; } = new Topology.Path[0];
        
        [JsonIgnore]
        public ProfileIcon ProfileIcon
        {
            get
            {
                if (_profileIcon != null)
                    return _profileIcon;
                else
                {
                    _profileIcon = new ProfileIcon(this);
                    return _profileIcon;
                }
            }
            set
            {
                _profileIcon = value;
            }

        }

        public string SavedProfileIconCacheFilename { get; set; }

        public List<string> ProfileDisplayIdentifiers
        {
            get
            {
                if (_profileDisplayIdentifiers.Count == 0)
                {
                    _profileDisplayIdentifiers = ProfileRepository.GenerateProfileDisplayIdentifiers(); 
                }
                return _profileDisplayIdentifiers;
            }
            set
            {
                if (value is List<string>)
                    _profileDisplayIdentifiers = value;
            }
        }

        [JsonConverter(typeof(CustomBitmapConverter))]
        public Bitmap ProfileBitmap
        {
            get
            {
                if (_profileBitmap != null)
                    return _profileBitmap;
                else
                {
                    _profileBitmap = this.ProfileIcon.ToBitmap(256, 256);
                    return _profileBitmap;
                }
            }
            set
            {
                _profileBitmap = value;
            }

        }

        [JsonConverter(typeof(CustomBitmapConverter))]
        public Bitmap ProfileTightestBitmap
        {
            get
            {
                if (_profileShortcutBitmap != null)
                    return _profileShortcutBitmap;
                else
                {
                    _profileShortcutBitmap = this.ProfileIcon.ToTightestBitmap();
                    return _profileShortcutBitmap;
                }
            }
            set
            {
                _profileShortcutBitmap = value;
            }

        }

        #endregion

        public static bool IsValidName(string testName)
        {
            foreach (ProfileItem loadedProfile in _allSavedProfiles)
            {
                if (loadedProfile.Name == testName)
                {
                    return false;
                }
            }

            return true;
        }

        public static bool IsValidUUID(string testId)
        {
            Match match = Regex.Match(testId, uuidV4Regex, RegexOptions.IgnoreCase);
            if (match.Success)
                return true;
            else
                return false;
        }

        public bool IsValid()
        {

            if (Paths != null &&
                ProfileIcon is ProfileIcon &&
                File.Exists(SavedProfileIconCacheFilename) &&
                ProfileBitmap is Bitmap &&
                ProfileTightestBitmap is Bitmap &&
                ProfileDisplayIdentifiers.Count > 0)
                return true;
            else 
                return false;
        }

        

        public bool CopyTo(ProfileItem profile, bool overwriteId = true)
        {
            if (!(profile is ProfileItem))
                return false;

            if (overwriteId == true)
                profile.UUID = UUID;

            // Copy all our profile data over to the other profile
            profile.Name = Name;
            profile.Paths = Paths;
            profile.ProfileIcon = ProfileIcon;
            profile.SavedProfileIconCacheFilename = SavedProfileIconCacheFilename;
            profile.ProfileBitmap = ProfileBitmap;
            profile.ProfileTightestBitmap = ProfileTightestBitmap;
            profile.ProfileDisplayIdentifiers = ProfileDisplayIdentifiers;
            return true;
        }

        public bool PreSave()
        {
            // Prepare our profile data for saving
            if (_profileDisplayIdentifiers.Count == 0)
            {
                _profileDisplayIdentifiers = ProfileRepository.GenerateProfileDisplayIdentifiers();
            }

            // Return if it is valid and we should continue
            return IsValid();
        }


        // The public override for the Object.Equals
        public override bool Equals(object obj)
        {
            return this.Equals(obj as ProfileItem);
        }

        // Profiles are equal if their Viewports are equal
        public bool Equals(ProfileItem other)
        {

            // If parameter is null, return false.
            if (other is null)
                return false;

            // Optimization for a common success case.
            if (Object.ReferenceEquals(this, other))
                return true;

            // If run-time types are not exactly the same, return false.
            if (this.GetType() != other.GetType())
                return false;
            
            // Check whether the profiles' properties are equal
            // We need to exclude the name as the name is solely for saving to disk
            // and displaying to the user. 
            // Two profiles are equal only when they have the same viewport data
            if (Paths.SequenceEqual(other.Paths))
                return true;
            else
                return false;
        }

        // If Equals() returns true for this object compared to  another
        // then GetHashCode() must return the same value for these objects.
        public override int GetHashCode()
        {

            // Get hash code for the Viewports field if it is not null.
            int hashPaths = Paths == null ? 0 : Paths.GetHashCode();

            //Calculate the hash code for the product.
            return hashPaths;

        }


        public override string ToString()
        {
            return (Name ?? Language.UN_TITLED_PROFILE);
        }

        private static string GetValidFilename(string uncheckedFilename)
        {
            string invalid = new string(System.IO.Path.GetInvalidFileNameChars()) + new string(System.IO.Path.GetInvalidPathChars());
            foreach (char c in invalid)
            {
                uncheckedFilename = uncheckedFilename.Replace(c.ToString(), "");
            }
            return uncheckedFilename;
        }

        public int CompareTo(object obj)
        {
            if (!(obj is ProfileItem)) throw new ArgumentException("Object to CompareTo is not a Shortcut"); ;

            ProfileItem otherProfile = (ProfileItem)obj;
            return this.Name.CompareTo(otherProfile.Name);
        }

    }

    // Custom Equality comparer for the Profile class
    // Allows us to use 'Contains'
    class ProfileComparer : IEqualityComparer<ProfileItem>
    {
        // Products are equal if their names and product numbers are equal.
        public bool Equals(ProfileItem x, ProfileItem y)
        {

            //Check whether the compared objects reference the same data.
            if (Object.ReferenceEquals(x, y)) return true;

            //Check whether any of the compared objects is null.
            if (x is null || y is null)
                return false;

            // Check whether the profiles' properties are equal
            // We need to exclude the name as the name is solely for saving to disk
            // and displaying to the user. 
            // Two profiles are equal only when they have the same viewport data
            if (x.Paths.SequenceEqual(y.Paths))
                return true;
            else
                return false;
        }

        // If Equals() returns true for a pair of objects
        // then GetHashCode() must return the same value for these objects.
        public int GetHashCode(ProfileItem profile)
        {

            // Check whether the object is null
            if (profile is null) return 0;

            // Get hash code for the Viewports field if it is not null.
            int hashPaths = profile.Paths == null ? 0 : profile.Paths.GetHashCode();

            //Calculate the hash code for the product.
            return hashPaths;

        }

    }
}