Bump version to 0.6.7

Elwig/App.xaml.cs

@@ -63,7 +63,7 @@ namespace Elwig {
             Directory.CreateDirectory(TempPath);
             Directory.CreateDirectory(DataPath);
             MainDispatcher = Dispatcher;
-            Scales = Array.Empty<IScale>();
+            Scales = [];
             CurrentApp = this;
             OverrideCulture();
         }
@@ -96,7 +96,7 @@ namespace Elwig {
                 return;
             }
 
-            Dictionary<string, (string, string, int?, string?, string?, string?, string?, string?)> branches = new();
+            Dictionary<string, (string, string, int?, string?, string?, string?, string?, string?)> branches = [];
             using (var ctx = new AppDbContext()) {
                 branches = ctx.Branches.ToDictionary(b => b.Name.ToLower(), b => (b.ZwstId, b.Name, b.PostalDest?.AtPlz?.Plz, b.PostalDest?.AtPlz?.Ort.Name, b.Address, b.PhoneNr, b.FaxNr, b.MobileNr));
                 try {
@@ -115,23 +115,11 @@ namespace Elwig {
 
             var list = new List<IScale>();
             foreach (var s in Config.Scales) {
-                var id = s[0];
                 try {
-                    var type = s[1]?.ToLower();
-                    var model = s[2];
-                    var cnx = s[3];
-                    var empty = s[4];
-                    var filling = s[5];
-                    int? limit = s[6] == null ? null : int.Parse(s[6]);
-                    var log = s[7];
-                    if (type == "systec") {
-                        list.Add(new SystecScale(id, model, cnx, empty, filling, limit, log));
-                    } else {
-                        throw new ArgumentException($"Invalid scale type: \"{type}\"");
-                    }
+                    list.Add(Scale.FromConfig(s));
                 } catch (Exception e) {
-                    list.Add(new InvalidScale(id));
-                    MessageBox.Show($"Unable to create scale {s[0]}:\n\n{e.Message}", "Scale Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                    list.Add(new InvalidScale(s.Id));
+                    MessageBox.Show($"Unable to create scale {s.Id}:\n\n{e.Message}", "Scale Error", MessageBoxButton.OK, MessageBoxImage.Error);
                 }
             }
             Scales = list;

Elwig/Documents/MemberDataSheet.cs

@@ -15,7 +15,7 @@ namespace Elwig.Documents {
         public MemberDataSheet(Member m, AppDbContext ctx) : base($"{Name} {m.AdministrativeName}", m) {
             DocumentId = $"{Name} {m.MgNr}";
             Season = ctx.Seasons.ToList().MaxBy(s => s.Year) ?? throw new ArgumentException("invalid season");
-            MemberBuckets = ctx.GetMemberBuckets(Season.Year, m.MgNr).GetAwaiter().GetResult();
+            MemberBuckets = ctx.GetMemberBuckets(Utils.CurrentYear, m.MgNr).GetAwaiter().GetResult();
         }
     }
 }

Elwig/Elwig.csproj

@@ -7,7 +7,7 @@
     <UseWPF>true</UseWPF>
     <PreserveCompilationContext>true</PreserveCompilationContext>
     <ApplicationIcon>Resources\Images\Elwig.ico</ApplicationIcon>
-    <Version>0.6.5</Version>
+    <Version>0.6.7</Version>
     <SatelliteResourceLanguages>de-AT</SatelliteResourceLanguages>
   </PropertyGroup>
 

Elwig/Helpers/AppDbContext.cs

@@ -160,16 +160,16 @@ namespace Elwig.Helpers {
         }
 
         public async Task<int> NextMgNr() {
-            int c = await Members.Select(m => m.MgNr).MinAsync();
+            int c = 0;
             (await Members.OrderBy(m => m.MgNr).Select(m => m.MgNr).ToListAsync())
                 .ForEach(a => { if (a <= c + 1000) c = a; });
             return c + 1;
         }
 
         public async Task<int> NextFbNr() {
-            int c = await AreaCommitments.Select(ac => ac.FbNr).MinAsync();
+            int c = 0;
             (await AreaCommitments.OrderBy(ac => ac.FbNr).Select(ac => ac.FbNr).ToListAsync())
-                .ForEach(a => { if (a <= c + 1000) c = a; });
+                .ForEach(a => { if (a <= c + 10000) c = a; });
             return c + 1;
         }
 

Elwig/Helpers/AppDbUpdater.cs

@@ -9,7 +9,7 @@ namespace Elwig.Helpers {
     public static class AppDbUpdater {
 
         // Don't forget to update value in Tests/fetch-resources.bat!
-        public static readonly int RequiredSchemaVersion = 16;
+        public static readonly int RequiredSchemaVersion = 17;
 
         private static int VersionOffset = 0;
 

Elwig/Helpers/ClientParameters.cs

@@ -7,20 +7,20 @@ using System.Threading.Tasks;
 namespace Elwig.Helpers {
     public class ClientParameters {
 
-        public enum Type { Matzen, Winzerkeller };
+        public enum Type { Matzen, Winzerkeller, Weinland, Baden };
 
         public bool IsMatzen => Client == Type.Matzen;
         public bool IsWinzerkeller => Client == Type.Winzerkeller;
-        public bool IsWolkersdorf => Client == Type.Winzerkeller && App.ZwstId == "W";
-        public bool IsHaugsdorf => Client == Type.Winzerkeller && App.ZwstId == "H";
-        public bool IsSitzendorf => Client == Type.Winzerkeller && App.ZwstId == "S";
+        public bool IsWeinland => Client == Type.Weinland;
+        public bool IsBaden => Client == Type.Baden;
+        public bool IsWolkersdorf => IsWinzerkeller && App.ZwstId == "W";
+        public bool IsHaugsdorf => IsWinzerkeller && App.ZwstId == "H";
+        public bool IsSitzendorf => IsWinzerkeller && App.ZwstId == "S";
+        public bool IsGrInzersdorf => IsWeinland;
 
-        public bool HasRebler(string? zwstId) => IsMatzen || (IsWinzerkeller && zwstId == "W");
-        public bool HasRebler(Branch? b) => HasRebler(b?.ZwstId);
-        public bool HasRebler() => HasRebler(App.ZwstId);
-        public bool HasKisten(string? zwstId) => IsWinzerkeller && (zwstId == "H" || zwstId == "S");
-        public bool HasKisten(Branch? b) => HasKisten(b?.ZwstId);
-        public bool HasKisten() => HasKisten(App.ZwstId);
+        public bool HasNetWeighing(string? zwstId) => IsMatzen || (IsWinzerkeller && zwstId == "W");
+        public bool HasNetWeighing(Branch? b) => HasNetWeighing(b?.ZwstId);
+        public bool HasNetWeighing() => HasNetWeighing(App.ZwstId);
 
         public string NameToken;
         public string NameShort;
@@ -36,8 +36,8 @@ namespace Elwig.Helpers {
 
         public PostalDest PostalDest {
             set {
-                Plz = value.AtPlz.Plz;
-                Ort = value.AtPlz.Ort.Name;
+                Plz = value.AtPlz!.Plz;
+                Ort = value.AtPlz!.Ort.Name;
             }
         }
         public int Plz;
@@ -72,8 +72,14 @@ namespace Elwig.Helpers {
                 NameSuffix = parameters.GetValueOrDefault("CLIENT_NAME_SUFFIX");
                 NameType = parameters["CLIENT_NAME_TYPE"] ?? throw new KeyNotFoundException();
                 switch (Name) {
-                    case "Winzergenossenschaft für Matzen und Umgebung": Client = Type.Matzen; break;
-                    case "Winzerkeller im Weinviertel": Client = Type.Winzerkeller; break;
+                    case "Winzergenossenschaft für Matzen und Umgebung":
+                        Client = Type.Matzen; break;
+                    case "Winzerkeller im Weinviertel":
+                        Client = Type.Winzerkeller; break;
+                    case "Winzergenossenschaft Weinland":
+                        Client = Type.Weinland; break;
+                    case "Winzergenossenschaft Baden - Bad Vöslau":
+                        Client = Type.Baden; break;
                 };
 
                 Plz = int.Parse(parameters["CLIENT_PLZ"] ?? "");
@@ -115,7 +121,7 @@ namespace Elwig.Helpers {
                 case 2: deliveryNoteStats = "SHORT"; break;
                 case 3: deliveryNoteStats = "FULL"; break;
             }
-            return new (string, string?)[] {
+            return [
                 ("CLIENT_NAME_TOKEN", NameToken),
                 ("CLIENT_NAME_SHORT", NameShort),
                 ("CLIENT_NAME", Name),
@@ -137,7 +143,7 @@ namespace Elwig.Helpers {
                 ("TEXT_DELIVERYNOTE", TextDeliveryNote),
                 ("TEXT_DELIVERYCONFIRMATION", TextDeliveryConfirmation),
                 ("TEXT_CREDITNOTE", TextCreditNote),
-            };
+            ];
         }
 
         public async Task UpdateValues() {

Elwig/Helpers/Config.cs

@@ -4,6 +4,31 @@ using System.Linq;
 using Microsoft.Extensions.Configuration;
 
 namespace Elwig.Helpers {
+
+    public record struct ScaleConfig {
+        public string Id;
+        public string? Type;
+        public string? Model;
+        public string? Connection;
+        public string? Empty;
+        public string? Filling;
+        public string? Limit;
+        public string? Log;
+        public string? _Log;
+
+        public ScaleConfig(string id, string? type, string? model, string? cnx, string? empty, string? filling, string? limit, string? log) {
+            Id = id;
+            Type = type;
+            Model = model;
+            Connection = cnx;
+            Empty = empty;
+            Filling = filling;
+            Limit = limit;
+            _Log = log;
+            Log = log != null ? Path.Combine(App.DataPath, log) : null;
+        }
+    }
+
     public class Config {
 
         private readonly string FileName;
@@ -11,8 +36,8 @@ namespace Elwig.Helpers {
         public string DatabaseFile = App.DataPath + "database.sqlite3";
         public string? DatabaseLog = null;
         public string? Branch = null;
-        public IList<string?[]> Scales;
-        private readonly List<string?[]> ScaleList = [];
+        public IList<ScaleConfig> Scales;
+        private readonly List<ScaleConfig> ScaleList = [];
         private static readonly string[] trueValues = ["1", "true", "yes", "on"];
 
         public Config(string filename) {
@@ -34,12 +59,10 @@ namespace Elwig.Helpers {
             ScaleList.Clear();
             Scales = ScaleList;
             foreach (var s in scales) {
-                string? scaleLog = config[$"scale.{s}:log"];
-                if (scaleLog != null) scaleLog = Path.Combine(App.DataPath, scaleLog);
-                ScaleList.Add([
+                ScaleList.Add(new(
                     s, config[$"scale.{s}:type"], config[$"scale.{s}:model"], config[$"scale.{s}:connection"],
-                    config[$"scale.{s}:empty"], config[$"scale.{s}:filling"], config[$"scale.{s}:limit"], scaleLog
-                ]);
+                    config[$"scale.{s}:empty"], config[$"scale.{s}:filling"], config[$"scale.{s}:limit"], config[$"scale.{s}:log"]
+                ));
             }
         }
 
@@ -51,11 +74,11 @@ namespace Elwig.Helpers {
             file.Write($"\r\n[database]\r\nfile = {DatabaseFile}\r\n");
             if (DatabaseLog != null) file.Write($"log = {DatabaseLog}\r\n");
             foreach (var s in ScaleList) {
-                file.Write($"\r\n[scale.{s[0]}]\r\ntype = {s[1]}\r\nmodel = {s[2]}\r\nconnection = {s[3]}\r\n");
-                if (s[4] != null) file.Write($"empty = {s[4]}\r\n");
-                if (s[5] != null) file.Write($"filling = {s[5]}\r\n");
-                if (s[6] != null) file.Write($"limit = {s[6]}\r\n");
-                if (s[7] != null) file.Write($"log = {s[7]}\r\n");
+                file.Write($"\r\n[scale.{s.Id}]\r\ntype = {s.Type}\r\nmodel = {s.Model}\r\nconnection = {s.Connection}\r\n");
+                if (s.Empty != null) file.Write($"empty = {s.Empty}\r\n");
+                if (s.Filling != null) file.Write($"filling = {s.Filling}\r\n");
+                if (s.Limit != null) file.Write($"limit = {s.Limit}\r\n");
+                if (s._Log != null) file.Write($"log = {s._Log}\r\n");
             }
         }
     }

Elwig/Helpers/Weighing/GassnerScale.cs

@@ -1,64 +0,0 @@
-using System;
-using System.IO;
-using System.IO.Ports;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace Elwig.Helpers.Weighing {
-    public class GassnerScale : IScale {
-
-        protected SerialPort Serial = null;
-        protected StreamReader Reader;
-        protected StreamWriter Writer;
-
-        public string Manufacturer => "Gassner";
-        public int InternalScaleNr => 1;
-        public string Model { get; private set; }
-        public string ScaleId { get; private set; }
-        public bool IsReady { get; private set; }
-        public bool HasFillingClearance { get; private set; }
-        public int? WeightLimit { get; private set; }
-        public string? LogPath { get; private set; }
-
-        public GassnerScale(string id, string model, string connection) {
-            ScaleId = id;
-            Model = model;
-            IsReady = true;
-            HasFillingClearance = false;
-
-            if (!connection.StartsWith("serial:"))
-                throw new ArgumentException("Unsupported scheme");
-
-            Serial = Utils.OpenSerialConnection(connection);
-            Writer = new(Serial.BaseStream, Encoding.ASCII, -1, true);
-            Reader = new(Serial.BaseStream, Encoding.ASCII, false, -1, true);
-        }
-
-        public void Dispose() {
-            Writer.Close();
-            Reader.Close();
-            Serial.Close();
-            GC.SuppressFinalize(this);
-        }
-
-        public async Task<WeighingResult> Weigh(bool incIdentNr) {
-            await Writer.WriteAsync(incIdentNr ? "\x05" : "?");
-            // TODO receive response
-            return new();
-        }
-
-        public async Task<WeighingResult> GetCurrentWeight() {
-            return await Weigh(false);
-        }
-
-        public async Task<WeighingResult> Weigh() {
-            return await Weigh(true);
-        }
-
-        public async Task Empty() { }
-
-        public async Task GrantFillingClearance() { }
-
-        public async Task RevokeFillingClearance() { }
-    }
-}

Elwig/Helpers/Weighing/Scale.cs

@@ -0,0 +1,95 @@
+using System.IO.Ports;
+using System.IO;
+using System.Net.Sockets;
+using System;
+
+namespace Elwig.Helpers.Weighing {
+    public abstract class Scale : IDisposable {
+
+        protected enum Output { RTS, DTR, OUT1, OUT2 };
+
+        protected SerialPort? Serial = null;
+        protected SerialPort? ControlSerialEmpty = null, ControlSerialFilling = null;
+        protected TcpClient? Tcp = null;
+        protected Stream Stream;
+
+        protected readonly Output? EmptyMode = null;
+        protected readonly Output? FillingClearanceMode = null;
+        protected readonly int EmptyDelay;
+
+        public int? WeightLimit { get; private set; }
+        public string? LogPath { get; private set; }
+
+        public static IScale FromConfig(ScaleConfig config) {
+            int? limit = config.Limit != null ? int.Parse(config.Limit) : null;
+            if (config.Type == "SysTec-IT") {
+                return new SysTecITScale(config.Id, config.Model!, config.Connection!, config.Empty, config.Filling, limit, config.Log);
+            } else if (config.Type == "Schember-evt") {
+                return new SchemberEventScale(config.Id, config.Model!, config.Connection!, config.Empty, config.Filling, limit, config.Log);
+            } else {
+                throw new ArgumentException($"Invalid scale type: \"{config.Type}\"");
+            }
+        }
+
+        protected Scale(string cnx, string? empty, string? filling, int? limit, string? log) {
+            if (cnx.StartsWith("serial:")) {
+                Serial = Utils.OpenSerialConnection(cnx);
+                Stream = Serial.BaseStream;
+            } else if (cnx.StartsWith("tcp:")) {
+                Tcp = Utils.OpenTcpConnection(cnx);
+                Stream = Tcp.GetStream();
+            } else {
+                throw new ArgumentException("Unsupported scheme");
+            }
+
+            LogPath = log;
+
+            if (empty != null) {
+                var parts = empty.Split(':');
+                if (parts.Length == 3) {
+                    if (parts[0] != Serial?.PortName)
+                        ControlSerialEmpty = Utils.OpenSerialConnection($"serial://{parts[0]}:9600");
+                } else if (parts.Length != 2) {
+                    throw new ArgumentException("Invalid value for 'empty'");
+                }
+                EmptyMode = ConvertOutput(parts[^2]);
+                EmptyDelay = int.Parse(parts[^1]);
+            }
+
+            WeightLimit = limit;
+            if (filling != null) {
+                var parts = filling.Split(':');
+                if (parts.Length == 2) {
+                    if (parts[0] != Serial?.PortName)
+                        ControlSerialFilling = parts[0] != ControlSerialEmpty?.PortName ? Utils.OpenSerialConnection($"serial://{parts[0]}:9600") : ControlSerialEmpty;
+                } else if (parts.Length != 1) {
+                    throw new ArgumentException("Invalid value for 'filling'");
+                }
+                FillingClearanceMode = ConvertOutput(parts[^1]);
+            }
+
+            if (FillingClearanceMode != null && WeightLimit == null)
+                throw new ArgumentException("Weight limit has to be set, if filling clearance supervision is enabled");
+        }
+
+        public void Dispose() {
+            Stream.Close();
+            Serial?.Close();
+            ControlSerialEmpty?.Close();
+            ControlSerialFilling?.Close();
+            Tcp?.Close();
+            GC.SuppressFinalize(this);
+        }
+
+        protected static Output? ConvertOutput(string? value) {
+            return value switch {
+                null => null,
+                "RTS" => Output.RTS,
+                "DTR" => Output.DTR,
+                "OUT1" => Output.OUT1,
+                "OUT2" => Output.OUT2,
+                _ => throw new ArgumentException($"Invalid value for argument: '{value}'"),
+            };
+        }
+    }
+}

Elwig/Helpers/Weighing/SchemberEventScale.cs

@@ -0,0 +1,22 @@
+namespace Elwig.Helpers.Weighing {
+    public class SchemberEventScale : Scale, IEventScale {
+
+        public string Manufacturer => "Schember";
+        public int InternalScaleNr => 1;
+        public string Model { get; private set; }
+        public string ScaleId { get; private set; }
+        public bool IsReady { get; private set; }
+        public bool HasFillingClearance { get; private set; }
+
+        public SchemberEventScale(string id, string model, string cnx, string? empty = null, string? filling = null, int? limit = null, string? log = null) :
+            base(cnx, empty, filling, limit, log) {
+            ScaleId = id;
+            Model = model;
+            IsReady = true;
+            HasFillingClearance = false;
+            Stream.WriteTimeout = 250;
+            Stream.ReadTimeout = 6000;
+        }
+
+    }
+}

Elwig/Helpers/Weighing/SchemberScale.cs

@@ -1,22 +0,0 @@
-using System;
-
-namespace Elwig.Helpers.Weighing {
-    public class SchemberScale : IEventScale {
-
-        public string Manufacturer => "Schember";
-        public string Model => throw new NotImplementedException();
-        public string ScaleId => throw new NotImplementedException();
-        public int InternalScaleNr => throw new NotImplementedException();
-        public bool IsReady => throw new NotImplementedException();
-        public bool HasFillingClearance => throw new NotImplementedException();
-        public int? WeightLimit => throw new NotImplementedException();
-        public string? LogPath => throw new NotImplementedException();
-
-        public void Dispose() {
-            throw new NotImplementedException();
-        }
-
-
-
-    }
-}

Elwig/Helpers/Weighing/SystecItScale.cs

@@ -1,23 +1,11 @@
 using System;
 using System.IO;
 using System.IO.Ports;
-using System.Net.Sockets;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace Elwig.Helpers.Weighing {
-    public class SystecScale : ICommandScale {
-
-        protected enum Output { RTS, DTR, OUT1, OUT2 };
-
-        protected SerialPort? Serial = null;
-        protected SerialPort? ControlSerialEmpty = null, ControlSerialFilling = null;
-        protected TcpClient? Tcp = null;
-        protected Stream Stream;
-
-        protected readonly Output? EmptyMode = null;
-        protected readonly Output? FillingClearanceMode = null;
-        protected readonly int EmptyDelay;
+    public class SysTecITScale : Scale, ICommandScale {
 
         public string Manufacturer => "SysTec";
         public int InternalScaleNr => 1;
@@ -25,72 +13,15 @@ namespace Elwig.Helpers.Weighing {
         public string ScaleId { get; private set; }
         public bool IsReady { get; private set; }
         public bool HasFillingClearance { get; private set; }
-        public int? WeightLimit { get; private set; }
-        public string? LogPath { get; private set; }
 
-        public SystecScale(string id, string model, string connection, string? empty = null, string? filling = null, int? limit = null, string? log = null) {
+        public SysTecITScale(string id, string model, string cnx, string? empty = null, string? filling = null, int? limit = null, string? log = null) :
+            base(cnx, empty, filling, limit, log) {
             ScaleId = id;
             Model = model;
             IsReady = true;
             HasFillingClearance = false;
-            LogPath = log;
-
-            if (connection.StartsWith("serial:")) {
-                Serial = Utils.OpenSerialConnection(connection);
-                Stream = Serial.BaseStream;
-            } else if (connection.StartsWith("tcp:")) {
-                Tcp = Utils.OpenTcpConnection(connection);
-                Stream = Tcp.GetStream();
-            } else {
-                throw new ArgumentException("Unsupported scheme");
-            }
-
-            if (empty != null) {
-                var parts = empty.Split(':');
-                if (parts.Length == 3) {
-                    if (parts[0] != Serial?.PortName)
-                        ControlSerialEmpty = Utils.OpenSerialConnection($"serial://{parts[0]}:9600");
-                } else if (parts.Length != 2) {
-                    throw new ArgumentException("Invalid value for 'empty'");
-                }
-                EmptyMode = ConvertOutput(parts[^2]);
-                EmptyDelay = int.Parse(parts[^1]);
-            }
-
-            WeightLimit = limit;
-            if (filling != null) {
-                var parts = filling.Split(':');
-                if (parts.Length == 2) {
-                    if (parts[0] != Serial?.PortName)
-                        ControlSerialFilling = parts[0] != ControlSerialEmpty?.PortName ? Utils.OpenSerialConnection($"serial://{parts[0]}:9600") : ControlSerialEmpty;
-                } else if (parts.Length != 1) {
-                    throw new ArgumentException("Invalid value for 'filling'");
-                }
-                FillingClearanceMode = ConvertOutput(parts[^1]);
-            }
-
-            if (FillingClearanceMode != null && WeightLimit == null)
-                throw new ArgumentException("Weight limit has to be set, if filling clearance supervision is enabled");
-        }
-
-        public void Dispose() {
-            Stream.Close();
-            Serial?.Close();
-            ControlSerialEmpty?.Close();
-            ControlSerialFilling?.Close();
-            Tcp?.Close();
-            GC.SuppressFinalize(this);
-        }
-
-        protected static Output? ConvertOutput(string? value) {
-            return value switch {
-                null => null,
-                "RTS" => Output.RTS,
-                "DTR" => Output.DTR,
-                "OUT1" => Output.OUT1,
-                "OUT2" => Output.OUT2,
-                _ => throw new ArgumentException($"Invalid value for argument: '{value}'"),
-            };
+            Stream.WriteTimeout = 250;
+            Stream.ReadTimeout = 11000;
         }
 
         protected async Task SendCommand(string command) {
@@ -105,7 +36,7 @@ namespace Elwig.Helpers.Weighing {
                 line = await reader.ReadLineAsync();
                 if (LogPath != null) await File.AppendAllTextAsync(LogPath, $"{line}\r\n");
             }
-            if (line == null || line.Length < 4 || !line.StartsWith("<") || !line.EndsWith(">")) {
+            if (line == null || line.Length < 4 || !line.StartsWith('<') || !line.EndsWith('>')) {
                 throw new IOException("Invalid response from scale");
             }
 
@@ -162,7 +93,7 @@ namespace Elwig.Helpers.Weighing {
             var crc16      = line[52..60].Trim();
 
             if (Utils.CalcCrc16Modbus(record[..54]) != ushort.Parse(crc16)) {
-                throw new IOException($"Invalid response from scale: Invalid CRC16 checksum ({crc16} != {Utils.CalcCrc16Modbus(record[..54]).ToString()})");
+                throw new IOException($"Invalid response from scale: Invalid CRC16 checksum ({crc16} != {Utils.CalcCrc16Modbus(record[..54])})");
             } else if (unit != "kg") {
                 throw new IOException($"Unsupported unit in weighing response: '{unit}'");
             }

Elwig/Helpers/Weighing/WeighingResult.cs

@@ -4,36 +4,38 @@ namespace Elwig.Helpers.Weighing {
     /// <summary>
     /// Result of a weighing process on an industrial scale
     /// </summary>
-    public class WeighingResult {
+    public struct WeighingResult {
         /// <summary>
         /// Measured net weight in kg
         /// </summary>
-        public int? Weight = null;
+        public int? Weight;
 
         /// <summary>
         /// Weighing id (or IdentNr) provided by the scale
         /// </summary>
-        public string? WeighingId = null;
+        public string? WeighingId;
 
         /// <summary>
         /// Wheighing id (or IdentNr) provided by the scale optionally combined with the current date
         /// </summary>
-        public string? FullWeighingId = null;
+        public string? FullWeighingId;
 
         /// <summary>
         /// Date string provided by the scale
         /// </summary>
-        public DateOnly? Date = null;
+        public DateOnly? Date;
 
         /// <summary>
         /// Time string provided by the scale
         /// </summary>
-        public TimeOnly? Time = null;
+        public TimeOnly? Time;
 
         /// <returns>&lt;Weight/WeighingId/Date/Time&gt;</returns>
-        override public string ToString() {
+        public override readonly string ToString() {
             var w = Weight != null ? $"{Weight}kg" : "";
             return $"<{w}/{WeighingId}/{Date:yyyy-MM-dd}/{Time:HH:mm}>";
         }
+
+
     }
 }

Elwig/Resources/Sql/16-17.sql

@@ -0,0 +1,12 @@
+-- schema version 16 to 17
+
+CREATE VIEW v_virtual_season AS
+SELECT year, max_kg_per_ha
+FROM season
+UNION
+SELECT strftime('%Y', date()) + 0, (SELECT max_kg_per_ha FROM season ORDER BY year DESC LIMIT 1);
+
+PRAGMA writable_schema = ON;
+UPDATE sqlite_schema SET sql = REPLACE(sql, 'season s', 'v_virtual_season s')
+WHERE type = 'view' AND name = 'v_area_commitment_bucket_strict';
+PRAGMA writable_schema = OFF;

Elwig/Windows/AreaComAdminWindow.xaml.cs

@@ -16,21 +16,21 @@ namespace Elwig.Windows {
         public int MgNr => Member.MgNr;
 
         private readonly Member Member;
-        private List<string> TextFilter = new();
+        private List<string> TextFilter = [];
 
         public AreaComAdminWindow(int mgnr) {
             InitializeComponent();
             Member = Context.Members.Find(mgnr) ?? throw new ArgumentException("MgNr argument has invalid value");
             Title = $"Flächenbindungen - {Member.AdministrativeName} - Elwig";
-            ExemptInputs = new Control[] {
+            ExemptInputs = [
                 MgNrInput, AreaCommitmentList, NewAreaCommitmentButton, 
                 EditAreaCommitmentButton, DeleteAreaCommitmentButton, AreaCommitmentSaveButton,
                 AreaCommitmentResetButton, AreaCommitmentCancelButton, SearchInput, ActiveAreaCommitmentInput
-            };
-            RequiredInputs = new Control[] {
+            ];
+            RequiredInputs = [
                 FbNrInput, YearFromInput, KgInput, RdInput,
                 GstNrInput, AreaInput.TextBox, AreaComTypeInput, WineCultivationInput
-            };
+            ];
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e) {
@@ -76,10 +76,10 @@ namespace Elwig.Windows {
         }
 
         private async Task<(List<string>, IQueryable<AreaCom>, List<string>)> GetFilters() {
-            List<string> filterNames = new();
+            List<string> filterNames = [];
             IQueryable<AreaCom> areaComQuery = Context.AreaCommitments.Where(a => a.MgNr == Member.MgNr).OrderBy(a => a.FbNr);
             if (ActiveAreaCommitmentInput.IsChecked == true) {
-                areaComQuery = areaComQuery.Where(a => (a.YearFrom <= Utils.CurrentNextSeason) && (a.YearTo == null || a.YearTo >= Utils.CurrentNextSeason));
+                areaComQuery = areaComQuery.Where(a => (a.YearFrom <= Utils.CurrentYear) && (a.YearTo == null || a.YearTo >= Utils.CurrentYear));
                 filterNames.Add("aktiv");
             }
 
@@ -151,7 +151,7 @@ namespace Elwig.Windows {
             YearToInput.Text = a.YearTo.ToString();
 
             KgInput.SelectedItem = a.Kg.AtKg;
-            RdInput.SelectedItem = a.Rd;
+            RdInput.SelectedItem = a.Rd ?? RdInput.Items[0];
             GstNrInput.Text = a.GstNr;
             AreaInput.Text = a.Area.ToString();
 
@@ -230,8 +230,8 @@ namespace Elwig.Windows {
             a.RdNr = RdInput.SelectedItem.GetType() == typeof(NullItem) ? null : ((WbRd)RdInput.SelectedItem).RdNr;
             a.GstNr = GstNrInput.Text;
             a.Area = int.Parse(AreaInput.Text);
-            a.VtrgId = (AreaComTypeInput.SelectedItem as AreaComType)?.VtrgId;
-            a.CultId = (WineCultivationInput.SelectedItem as WineCult)?.CultId;
+            a.VtrgId = (AreaComTypeInput.SelectedItem as AreaComType)!.VtrgId;
+            a.CultId = (WineCultivationInput.SelectedItem as WineCult)!.CultId;
             a.Comment = (CommentInput.Text == "") ? null : CommentInput.Text;
 
             EntityEntry<AreaCom>? tr = null;
@@ -275,7 +275,7 @@ namespace Elwig.Windows {
                 MessageBox.Show(str, "Flächenbindung aktualisieren", MessageBoxButton.OK, MessageBoxImage.Error);
             }
 
-            return a;
+            return a!;
         }
 
         private async void AreaCommitmentSaveButton_Click(object sender, RoutedEventArgs evt) {
@@ -287,7 +287,7 @@ namespace Elwig.Windows {
             ShowAreaCommitmentNewEditDeleteButtons();
             LockInputs();
             UnlockSearchInputs();
-            await RefreshAreaCommitmentList();
+            await App.HintContextChange();
             AreaCommitmentList.SelectedItem = a;
         }
 

Elwig/Windows/DeliveryAdminWindow.xaml.cs

@@ -218,7 +218,7 @@ namespace Elwig.Windows {
         }
 
         private void InitialDefaultInputs() {
-            if (App.Client.HasRebler(BranchInput.SelectedValue as Branch)) {
+            if (App.Client.HasNetWeighing(BranchInput.SelectedValue as Branch)) {
                 GerebeltGewogenInput.IsEnabled = false;
                 SetDefaultValue(GerebeltGewogenInput, true);
             } else {
@@ -226,7 +226,7 @@ namespace Elwig.Windows {
                 UnsetDefaultValue(GerebeltGewogenInput);
             }
 
-            if (App.Client.HasKisten(BranchInput.SelectedValue as Branch)) {
+            if (!App.Client.HasNetWeighing(BranchInput.SelectedValue as Branch)) {
                 LesewagenInput.IsEnabled = false;
                 SetDefaultValue(LesewagenInput, false);
                 HandPickedInput.IsThreeState = false;
@@ -256,9 +256,9 @@ namespace Elwig.Windows {
             ClearOriginalValues();
             ClearDefaultValues();
 
-            GerebeltGewogenInput.IsChecked = App.Client.HasRebler(BranchInput.SelectedValue as Branch);
+            GerebeltGewogenInput.IsChecked = App.Client.HasNetWeighing(BranchInput.SelectedValue as Branch);
             LesewagenInput.IsChecked = false;
-            HandPickedInput.IsChecked = App.Client.HasKisten(BranchInput.SelectedValue as Branch) ? true : null;
+            HandPickedInput.IsChecked = !App.Client.HasNetWeighing(BranchInput.SelectedValue as Branch) ? true : null;
             GebundenInput.IsChecked = null;
             InitialDefaultInputs();
 
@@ -863,7 +863,7 @@ namespace Elwig.Windows {
             var originalMemberKgNr = d?.Member?.DefaultKgNr;
             if (d == null) {
                 d = Context.CreateProxy<Delivery>();
-                year = Utils.CurrentNextSeason;
+                year = Utils.CurrentYear;
                 did = await Context.NextDId(year);
             } else {
                 year = d.Year;
@@ -1731,14 +1731,14 @@ namespace Elwig.Windows {
         }
 
         private void GerebeltGewogenInput_Changed(object sender, RoutedEventArgs evt) {
-            if (App.Client.HasKisten(BranchInput.SelectedValue as Branch)) {
+            if (!App.Client.HasNetWeighing(BranchInput.SelectedValue as Branch)) {
                 HandPickedInput.IsChecked = !GerebeltGewogenInput.IsChecked;
             }
             CheckBox_Changed(sender, evt);
         }
 
         private void HandPickedInput_Changed(object sender, RoutedEventArgs evt) {
-            if (App.Client.HasKisten(BranchInput.SelectedValue as Branch)) {
+            if (!App.Client.HasNetWeighing(BranchInput.SelectedValue as Branch)) {
                 GerebeltGewogenInput.IsChecked = !HandPickedInput.IsChecked;
             }
             CheckBox_Changed(sender, evt);

Elwig/Windows/MainWindow.xaml.cs

@@ -9,6 +9,7 @@ namespace Elwig.Windows {
             InitializeComponent();
             var v = Assembly.GetExecutingAssembly().GetName().Version;
             VersionField.Text = "Version: " + (v == null ? "?" : $"{v.Major}.{v.Minor}.{v.Build}") + $" – {App.BranchName}";
+            if (App.Client.Client == null) VersionField.Text += " (Unbekannt)";
             if (!App.Config.Debug) {
                 TestWindowButton.Visibility = Visibility.Hidden;
                 //QueryWindowButton.Visibility = Visibility.Hidden;

Elwig/Windows/PaymentVariantsWindow.xaml.cs

@@ -219,7 +219,7 @@ namespace Elwig.Windows {
             try {
                 Context.Remove(v);
                 await Context.SaveChangesAsync();
-                await HintContextChange();
+                await App.HintContextChange();
             } catch (Exception exc) {
                 var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
                 if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;

Tests/HelperTests/UtilsTest.cs

@@ -100,5 +100,52 @@ namespace Tests.HelperTests {
                 Assert.That(Utils.SplitName("ABC GesbR", "Bauer"), Is.EqualTo(((string, string?))("ABC GesbR", null)));
             });
         }
+
+        [Test]
+        public void Test_CalcCrc16Modbus() {
+            Assert.Multiple(() => {
+                Assert.That(Utils.CalcCrc16Modbus(""), Is.EqualTo(0xFFFF));
+                Assert.That(Utils.CalcCrc16Modbus("abcd"), Is.EqualTo(0x1D97));
+                Assert.That(Utils.CalcCrc16Modbus("ABCD"), Is.EqualTo(0x0F85));
+                // Matzen (SysTec IT3000A)
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:03   01       0       0       0kg     1"), Is.EqualTo(43166));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:04   01       0       0       0kg     1"), Is.EqualTo(21615));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:05   01       0       0       0kg     1"), Is.EqualTo(40446));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:06   01       0       0       0kg     1"), Is.EqualTo(34638));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:07   01       0       0       0kg     1"), Is.EqualTo(20191));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:08   01       0       0       0kg     1"), Is.EqualTo(16047));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:09   01       0       0       0kg     1"), Is.EqualTo(63294));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:10   01       0       0       0kg     1"), Is.EqualTo(7718));
+                Assert.That(Utils.CalcCrc16Modbus("000011.08.2319:12   01       0       0       0kg     1"), Is.EqualTo(52487));
+                // Wolkersdorf, Waage 1 (SysTec IT6000E)
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:50   51       0       0       0kg     A"), Is.EqualTo(10187));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:50   61       0       0       0kg     A"), Is.EqualTo(20683));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:50   71       0       0       0kg     A"), Is.EqualTo(48586));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:50   81       0       0       0kg     A"), Is.EqualTo(22217));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:50   91       0       0       0kg     A"), Is.EqualTo(48072));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51  101       0       0       0kg     A"), Is.EqualTo(30119));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51  111       0       0       0kg     A"), Is.EqualTo(39078));
+                // Wolkersdorf, Waage 2 (SysTec IT6000E)
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51   41       0       0       0kg     B"), Is.EqualTo(539));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51   51       0       0       0kg     B"), Is.EqualTo(61210));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51   61       0       0       0kg     B"), Is.EqualTo(38938));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51   71       0       0       0kg     B"), Is.EqualTo(29979));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51   81       0       0       0kg     B"), Is.EqualTo(40472));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51   91       0       0       0kg     B"), Is.EqualTo(29465));
+                Assert.That(Utils.CalcCrc16Modbus("000004.09.2315:51  101       0       0       0kg     B"), Is.EqualTo(29927));
+                // Gr.Inzersdorf (L246/IT3)
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   11       0       0       0kg   001"), Is.EqualTo(27556));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   21       0       0       0kg   001"), Is.EqualTo(7332));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   31       0       0       0kg   001"), Is.EqualTo(61861));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   41       0       0       0kg   001"), Is.EqualTo(62116));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   51       0       0       0kg   001"), Is.EqualTo(8101));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   61       0       0       0kg   001"), Is.EqualTo(26789));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:49   71      50       0      50kg   001"), Is.EqualTo(16188));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:50   81      35       0      35kg   001"), Is.EqualTo(12015));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:50   91      40       0      40kg   001"), Is.EqualTo(60047));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:50  101      40       0      40kg   001"), Is.EqualTo(60785));
+                Assert.That(Utils.CalcCrc16Modbus("000019.02.2410:50  111      45       0      45kg   001"), Is.EqualTo(35918));
+            });
+        }
     }
 }

Tests/WeighingTests/MockScale.cs

@@ -0,0 +1,71 @@
+using System.Net.Sockets;
+using System.Net;
+using System.Text;
+
+namespace Tests.WeighingTests {
+    public abstract class MockScale : IDisposable {
+
+        protected readonly TcpListener Server;
+
+        public int IdentNr { get; set; } = 0;
+        public int Weight { get; set; } = 0;
+        public string? Error { get; set; } = null;
+
+        protected MockScale(int port) {
+            Server = new TcpListener(IPAddress.Loopback, port);
+            Server.Start(4);
+        }
+
+        public void Dispose() {
+            Server.Dispose();
+            GC.SuppressFinalize(this);
+        }
+    }
+
+    public class CommandMockScale : MockScale {
+
+        private readonly Func<string, int, string?, int, (string, bool)> Handler;
+        private readonly Thread ServerThread;
+        private bool IsRunning = true;
+
+        public CommandMockScale(int port, Func<string, int, string?, int, (string, bool)> handler) :
+            base(port) {
+            Handler = handler;
+            ServerThread = new Thread(new ParameterizedThreadStart(Serve));
+            ServerThread.Start();
+        }
+
+        private async void Serve(object? parameters) {
+            byte[] buffer = new byte[16];
+            while (IsRunning) {
+                try {
+                    using var client = await Server.AcceptTcpClientAsync();
+                    if (client == null) continue;
+                    using var stream = client.GetStream();
+                    while (true) {
+                        int read = await stream.ReadAsync(buffer);
+                        var (res, inc) = Handler(Encoding.ASCII.GetString(buffer, 0, read), Weight, Error, IdentNr + 1);
+                        if (inc) IdentNr++;
+                        await stream.WriteAsync(Encoding.ASCII.GetBytes(res));
+                    }
+                } catch (Exception) {
+                    // ignore
+                }
+            }
+        }
+
+        public new void Dispose() {
+            IsRunning = false;
+            ServerThread.Interrupt();
+            ServerThread.Join();
+            base.Dispose();
+        }
+    }
+
+    public class EventMockScale : MockScale {
+        public EventMockScale(int port, Func<int, string?, int, (string, bool)> handler) :
+            base(port) {
+            // TODO
+        }
+    }
+}

Tests/WeighingTests/ScaleTestGrInzersdorf.cs

@@ -0,0 +1,6 @@
+namespace Tests.WeighingTests {
+    [TestFixture]
+    public class ScaleTestGrInzersdorf {
+        // TODO
+    }
+}

Tests/WeighingTests/ScaleTestMatzen.cs

@@ -0,0 +1,147 @@
+using Elwig.Helpers.Weighing;
+
+namespace Tests.WeighingTests {
+    [TestFixture]
+    class ScaleTestMatzen {
+
+        private MockScale? Mock;
+        private SysTecITScale? Scale;
+
+        private static (string, bool) ScaleHandler(string req, int weight, string? error, int identNr) {
+            var modes = error?.Split(';') ?? [];
+            var overloaded = modes.Contains("overloaded");
+            var moving = modes.Contains("moving");
+            var invalid = modes.Contains("invalid");
+            var crc = modes.Contains("crc");
+            var unit = modes.Contains("unit");
+
+            if (invalid) {
+                return ("abcd\r\n", false);
+            } else if (!req.StartsWith('<') || !req.EndsWith('>')) {
+                return ("<31>\r\n", false);
+            }
+            req = req[1..^1];
+
+            bool incr;
+            if (req.Length > 3) {
+                return ("<32>\r\n", false);
+            } else if (req.StartsWith("RN")) {
+                incr = true;
+            } else if (req.StartsWith("RM")) {
+                incr = false;
+            } else {
+                return ("<32>\r\n", false);
+            }
+
+            if (overloaded) {
+                return ("<12>\r\n", false);
+            } else if (weight == 0) {
+                incr = false;
+            }
+
+            if (moving && incr)
+                return ("<13>\r\n", false);
+
+            string data = $"00{(moving ? 1 : 0)}0{new DateTime(2020, 10, 15, 12, 34, 0):dd.MM.yyHH:mm}{(incr ? identNr : 0),4}1" +
+                $"{weight,8}{0,8}{weight,8}{(unit ? "lb" : "kg")}   {1,3}";
+            ushort checksum = Elwig.Helpers.Utils.CalcCrc16Modbus(data);
+            if (crc) checksum += 10;
+            return ($"<{data}{checksum,8}>\r\n", incr);
+        }
+
+        [OneTimeSetUp]
+        public void SetupScale() {
+            Mock = new CommandMockScale(12345, ScaleHandler);
+            Scale = new("1", "IT3000A", "tcp://127.0.0.1:12345");
+        }
+
+        [OneTimeTearDown]
+        public void TeardownScale() {
+            Mock?.Dispose();
+            Scale?.Dispose();
+        }
+
+        [SetUp]
+        public void ResetScale() {
+            Mock!.IdentNr = 0;
+            Mock!.Weight = 0;
+            Mock!.Error = null;
+        }
+
+        [Test]
+        public async Task Test_01_CurrentWeight() {
+            Mock!.Weight = 1234;
+            Assert.That(await Scale!.GetCurrentWeight(), Is.EqualTo(new WeighingResult {
+                Weight = 1234, Date = new DateOnly(2020, 10, 15), Time = new TimeOnly(12, 34),
+            }));
+            Mock!.Weight = 1235;
+            Assert.That(await Scale!.GetCurrentWeight(), Is.EqualTo(new WeighingResult {
+                Weight = 1235, Date = new DateOnly(2020, 10, 15), Time = new TimeOnly(12, 34),
+            }));
+            Mock!.Weight = 1236;
+            Assert.That(await Scale!.GetCurrentWeight(), Is.EqualTo(new WeighingResult {
+                Weight = 1236, Date = new DateOnly(2020, 10, 15), Time = new TimeOnly(12, 34),
+            }));
+        }
+
+        [Test]
+        public async Task Test_02_Normal() {
+            Mock!.Weight = 1234;
+            Assert.That(await Scale!.Weigh(), Is.EqualTo(new WeighingResult {
+                Weight = 1234, WeighingId = "1",
+                FullWeighingId = $"2020-10-15/1",
+                Date = new DateOnly(2020, 10, 15), Time = new TimeOnly(12, 34),
+            }));
+            Mock!.Weight = 3333;
+            Assert.That(await Scale!.Weigh(), Is.EqualTo(new WeighingResult {
+                Weight = 3333, WeighingId = "2",
+                FullWeighingId = $"2020-10-15/2",
+                Date = new DateOnly(2020, 10, 15), Time = new TimeOnly(12, 34),
+            }));
+            Mock!.Weight = 4321;
+            Assert.That(await Scale!.Weigh(), Is.EqualTo(new WeighingResult {
+                Weight = 4321, WeighingId = "3",
+                FullWeighingId = $"2020-10-15/3",
+                Date = new DateOnly(2020, 10, 15), Time = new TimeOnly(12, 34),
+            }));
+        }
+
+        [Test]
+        public void Test_03_Moving() {
+            Mock!.Weight = 1_000;
+            Mock!.Error = "moving";
+            IOException ex = Assert.ThrowsAsync<IOException>(async () => await Scale!.Weigh());
+            Assert.That(ex.Message, Contains.Substring("Waage in Bewegung"));
+        }
+
+        [Test]
+        public void Test_04_Overloaded() {
+            Mock!.Weight = 10_000;
+            Mock!.Error = "overloaded";
+            IOException ex = Assert.ThrowsAsync<IOException>(async () => await Scale!.Weigh());
+            Assert.That(ex.Message, Contains.Substring("Waage in Überlast"));
+        }
+
+        [Test]
+        public void Test_05_InvalidResponse() {
+            Mock!.Weight = 1_000;
+            Mock!.Error = "invalid";
+            Assert.ThrowsAsync<IOException>(async () => await Scale!.Weigh());
+        }
+
+        [Test]
+        public void Test_06_InvalidCrc() {
+            Mock!.Weight = 1_000;
+            Mock!.Error = "crc";
+            IOException ex = Assert.ThrowsAsync<IOException>(async () => await Scale!.Weigh());
+            Assert.That(ex.Message, Contains.Substring("Invalid CRC16 checksum"));
+        }
+
+        [Test]
+        public void Test_07_InvalidUnit() {
+            Mock!.Weight = 1_000;
+            Mock!.Error = "unit";
+            IOException ex = Assert.ThrowsAsync<IOException>(async () => await Scale!.Weigh());
+        }
+    }
+}

Tests/WeighingTests/ScaleTestWolkersdorf.cs

@@ -0,0 +1,6 @@
+namespace Tests.WeighingTests {
+    [TestFixture]
+    public class ScaleTestWolkersdorf {
+        // TODO
+    }
+}

Tests/WeighingTests/Utils.cs

@@ -0,0 +1,6 @@
+namespace Tests.WeighingTests {
+    public static class Utils {
+        public static DateOnly Today => DateOnly.FromDateTime(DateTime.Now);
+        public static TimeOnly Time => new(DateTime.Now.Hour, DateTime.Now.Minute);
+    }
+}

Tests/fetch-resources.bat

@@ -1 +1 @@
-curl -s -L "https://www.necronda.net/elwig/files/create.sql?v=16" -u "elwig:ganzGeheim123!" -o "Resources\Sql\Create.sql"
+curl -s -L "https://www.necronda.net/elwig/files/create.sql?v=17" -u "elwig:ganzGeheim123!" -o "Resources\Sql\Create.sql"