AOT Builds

Shared/Models/Stateless/XDate.cs

@@ -0,0 +1,50 @@
+namespace View_by_Distance.Shared.Models.Stateless;
+
+internal abstract class XDate
+{
+
+    internal static (int Season, string seasonName) GetSeason(int dayOfYear)
+    {
+        (int Season, string seasonName) result = dayOfYear switch
+        {
+            < 78 => new(0, "Winter"),
+            < 171 => new(1, "Spring"),
+            < 264 => new(2, "Summer"),
+            < 354 => new(3, "Fall"),
+            _ => new(4, "Winter")
+        };
+        return result;
+    }
+
+    internal static (bool?, string[]) IsWrongYear(string[] segments, string year)
+    {
+        bool? result;
+        string[] results = (
+            from l
+            in segments
+            where l?.Length > 2
+            && (
+                l[..2] is "18" or "19" or "20"
+            || (l.Length == 5 && l.Substring(1, 2) is "18" or "19" or "20" && (l[0] is '~' or '=' or '-' or '^' or '#'))
+            || (l.Length == 6 && l[..2] is "18" or "19" or "20" && l[4] == '.')
+            || (l.Length == 7 && l.Substring(1, 2) is "18" or "19" or "20" && l[5] == '.')
+            )
+            select l
+        ).ToArray();
+        string[] matches = (
+            from l
+            in results
+            where l == year
+            || (l.Length == 5 && l.Substring(1, 4) == year && (l[0] is '~' or '=' or '-' or '^' or '#'))
+            || (l.Length == 6 && l[..4] == year && l[4] == '.')
+            || (l.Length == 7 && l.Substring(1, 4) == year && l[5] == '.')
+            select l
+        ).ToArray();
+        if (results.Length == 0)
+            result = null;
+        else
+            result = matches.Length == 0;
+        return new(result, results);
+    }
+
+}