do to formatters

apps/website/lib/formatters/CountryFlagFormatter.ts

@@ -0,0 +1,21 @@
+export class CountryFlagFormatter {
+  private constructor(private readonly value: string) {}
+
+  static fromCountryCode(countryCode: string | null | undefined): CountryFlagFormatter {
+    if (!countryCode) {
+      return new CountryFlagFormatter('🏁');
+    }
+
+    const code = countryCode.toUpperCase();
+    if (code.length !== 2) {
+      return new CountryFlagFormatter('🏁');
+    }
+
+    const codePoints = [...code].map((char) => 127397 + char.charCodeAt(0));
+    return new CountryFlagFormatter(String.fromCodePoint(...codePoints));
+  }
+
+  toString(): string {
+    return this.value;
+  }
+}