Funktionierend

CardMarketBot/CheckSevDeskInternalList.cs

@@ -0,0 +1,38 @@
+using ConsoleApp3.Contracts;
+
+namespace CardmarketBot
+{
+    internal class CheckSevDeskInternalList : ICheckSevDesk
+    {
+        private const string FILENAME = "usedList.csv";
+
+        private List<string> Query => (from l in File.ReadAllLines("usedList.csv")
+                                       select l.Split(',') into p
+                                       select new string(p[0])).ToList();
+
+        public CheckSevDeskInternalList()
+        {
+            if (!File.Exists("usedList.csv"))
+            {
+                File.Create("usedList.csv");
+            }
+        }
+
+        public bool AlreadyKnown(string verkaufsnummer)
+        {
+            if (Query.Find((string x) => x.Equals(verkaufsnummer)) != null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Write(string verkaufsnummer)
+        {
+            verkaufsnummer += Environment.NewLine;
+            File.AppendAllText("usedList.csv", verkaufsnummer);
+            return true;
+        }
+    }
+
+}