Sicherung

Kalk/Kalk.Core/Model/KalkShortcutKeySequence.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using Scriban.Runtime;
+using Scriban.Syntax;
+
+namespace Kalk.Core
+{
+    public sealed class KalkShortcutKeySequence : ScriptObject
+    {
+        public KalkShortcutKeySequence(IEnumerable<KalkConsoleKey> keys, ScriptExpression expression)
+        {
+            if (keys == null) throw new ArgumentNullException(nameof(keys));
+            Keys = new List<KalkConsoleKey>(keys);
+            Expression = expression ?? throw new ArgumentNullException(nameof(expression));
+            var readonlyKeys = new ScriptArray(Keys) {IsReadOnly = true};
+            SetValue("keys", readonlyKeys, true);
+            SetValue("expression", Expression.ToString(), true);
+            IsReadOnly = true;
+        }
+        
+        public new List<KalkConsoleKey> Keys { get; }
+        
+        public ScriptExpression Expression { get; }
+        
+        public static List<KalkShortcutKeySequence> Parse(ScriptExpression keys, ScriptExpression expression)
+        {
+            if (keys == null) throw new ArgumentNullException(nameof(keys));
+
+            var keyAsString = keys is ScriptLiteral literal && literal.Value is string strValue? strValue : keys.ToString();
+
+
+            var keySequencesAsText = keyAsString.Split(',', StringSplitOptions.RemoveEmptyEntries);
+
+            var keySequences = new List<KalkShortcutKeySequence>();
+
+            foreach (var keySequence in keySequencesAsText)
+            {
+                var keyList = keySequence.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+                var resultKeys = new List<KalkConsoleKey>();
+
+                foreach (var keyText in keyList)
+                {
+                    try
+                    {
+                        var key = KalkConsoleKey.Parse(keyText);
+                        resultKeys.Add(key);
+                    }
+                    catch (Exception ex)
+                    {
+                        throw new ScriptRuntimeException(keys.Span, $"Unable to parse key. Reason: {ex.Message}");
+                    }
+                }
+
+                keySequences.Add(new KalkShortcutKeySequence(resultKeys, expression));
+            }
+
+            return keySequences;
+        }
+    }
+}