Client: Rich URLs in comments

Closes #51

client/src/utils/parsing.tsx

@@ -0,0 +1,45 @@
+import React from "react";
+
+// Number formatter that nicely formats numbers with correct decimal separator
+export function numberFormatter(value: number | undefined) {
+  return value ? Number(value).toLocaleString() : "";
+}
+
+// Number parser that supports both comma and dot as decimal separator
+export function numberParser(value: string | undefined) {
+  // Convert comma to dot
+  const decimalSeparator = (1.1).toLocaleString().charAt(1);
+  if (decimalSeparator === ",") {
+    value = value?.replace(",", ".");
+  }
+
+  // Remove all non-digit characters
+  value = value?.replace(/[^\d.-]/g, "");
+
+  // Parse as float
+  return parseFloat(value || "0");
+}
+
+export function enrichText(text: string | undefined) {
+  // Regular expression to match URLs
+  const urlRegex =
+    /(https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9]+\.[^\s]{2,}|www\.[a-zA-Z0-9]+\.[^\s]{2,})/gi;
+
+  // Split the input text by URLs
+  const parts = (text ?? "").split(urlRegex);
+
+  // Convert URLs to <a> tags
+  const elements = parts.map((part, index) => {
+    if (part.match(urlRegex)) {
+      return (
+        <a href={part} key={index} target="_blank" rel="noopener noreferrer">
+          {part}
+        </a>
+      );
+    } else {
+      return <React.Fragment key={index}>{part}</React.Fragment>;
+    }
+  });
+
+  return <>{elements}</>;
+}