internal: add true-myth for result/maybe types, test maybe on getType() handler, disable /old page

package.json

@@ -20,6 +20,7 @@
     "react-hook-form": "^7.42.1",
     "react-ogp": "^0.0.3",
     "sass": "^1.57.1",
+    "true-myth": "^7.1.0",
     "usehooks-ts": "^2.9.1",
     "zod": "^3.20.2"
   },

src/hooks/useLookup.tsx

@@ -35,7 +35,7 @@ const useLookup = (warningHandler?: WarningHandler) => {
 
   const uriType = useMemo<TargetType | "unknown">(
     function () {
-      return getType(target) ?? "unknown";
+      return getType(target).unwrapOr("unknown");
     },
     [target]
   );
@@ -143,21 +143,29 @@ const useLookup = (warningHandler?: WarningHandler) => {
 
     const targetType = getType(target);
 
-    switch (targetType) {
+    if (targetType.isNothing) {
+      throw new Error(
+        `The type could not be detected given the target (${JSON.stringify(
+          target
+        )}).`
+      );
+    }
+
+    switch (targetType.value) {
       // Block scoped case to allow url const reuse
       case "ip4": {
         await loadBootstrap("ip4");
-        const url = getRegistryURL(targetType, target);
+        const url = getRegistryURL(targetType.value, target);
         return await getAndParse<IpNetwork>(url, IpNetworkSchema);
       }
       case "ip6": {
         await loadBootstrap("ip6");
-        const url = getRegistryURL(targetType, target);
+        const url = getRegistryURL(targetType.value, target);
         return await getAndParse<IpNetwork>(url, IpNetworkSchema);
       }
       case "domain": {
         await loadBootstrap("domain");
-        const url = getRegistryURL(targetType, target);
+        const url = getRegistryURL(targetType.value, target);
 
         if (url.startsWith("http://") && url != repeatableRef.current) {
           repeatableRef.current = url;
@@ -171,15 +179,9 @@ const useLookup = (warningHandler?: WarningHandler) => {
       }
       case "autnum": {
         await loadBootstrap("autnum");
-        const url = getRegistryURL(targetType, target);
+        const url = getRegistryURL(targetType.value, target);
         return await getAndParse<AutonomousNumber>(url, AutonomousNumberSchema);
       }
-      case null:
-        throw new Error(
-          `The type could not be detected given the target (${JSON.stringify(
-            target
-          )}).`
-        );
       case "url":
       case "tld":
       case "registrar":

src/rdap.ts

@@ -1,4 +1,5 @@
 import type { TargetType } from "@/types";
+import { Maybe } from "true-myth";
 
 // keeps track of the elements we've created so we can assign a unique ID
 // let elementCounter = 123456;
@@ -773,9 +774,9 @@ const URIPatterns: [RegExp, TargetType][] = [
   ],
 ];
 
-export function getType(value: string): TargetType | null {
+export function getType(value: string): Maybe<TargetType> {
   for (const [pattern, type] of URIPatterns) {
-    if (pattern.test(value)) return type;
+    if (pattern.test(value)) return Maybe.of(type);
   }
-  return null;
+  return Maybe.nothing();
 }

yarn.lock

@@ -2312,6 +2312,11 @@ to-regex-range@^5.0.1:
   dependencies:
     is-number "^7.0.0"
 
+"true-myth@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/true-myth/-/true-myth-7.1.0.tgz#79077b5f1848af1ea0c241234aec2c4d0c11b91a"
+  integrity sha512-DcdyFRHfNyG31HgNtxqrVAHmBf7y1w4YZCpU7IR2Ohytm4LITv+u075Vc3dLyK9cdEPq6K9398iao6YpkU8hHA==
+
 tsconfig-paths@^3.14.1:
   version "3.14.1"
   resolved "https://registry.yarnpkg.com/tsconfig-paths/-/tsconfig-paths-3.14.1.tgz#ba0734599e8ea36c862798e920bcf163277b137a"