fix: product subdomain cleanup

src/lib/site-context.test.ts

@@ -8,6 +8,8 @@
 import { describe, it, expect } from "bun:test";
 import {
   resolveSiteFromHost,
+  resolveSiteFromPath,
+  resolveSiteFromLocation,
   SITE_CONFIG,
   type SiteId
 } from "./site-context";
@@ -80,15 +82,12 @@ describe("resolveSiteFromHost", () => {
   });
 
   it("every SITE_CONFIG entry has a non-empty baseRoutePrefix for subdomains", () => {
-    for (const id of [
-      "nessa",
-      "lineage",
-      "gaze",
-      "inputhalo"
-    ] as SiteId[]) {
+    for (const id of ["nessa", "lineage", "gaze", "inputhalo"] as SiteId[]) {
       expect(SITE_CONFIG[id].baseRoutePrefix).toBe(`/${id}`);
       expect(SITE_CONFIG[id].subdomain).toBe(id);
-      expect(SITE_CONFIG[id].titleSuffix).toBe(` | ${SITE_CONFIG[id].displayName}`);
+      expect(SITE_CONFIG[id].titleSuffix).toBe(
+        ` | ${SITE_CONFIG[id].displayName}`
+      );
     }
   });
 
@@ -97,3 +96,67 @@ describe("resolveSiteFromHost", () => {
     expect(SITE_CONFIG.main.baseRoutePrefix).toBe("");
   });
 });
+
+describe("resolveSiteFromPath", () => {
+  it("maps a subdomain-prefixed path to the right site", () => {
+    expect(resolveSiteFromPath("/nessa/contact")?.id).toBe("nessa");
+    expect(resolveSiteFromPath("/lineage/downloads")?.id).toBe("lineage");
+    expect(resolveSiteFromPath("/gaze/")?.id).toBe("gaze");
+    expect(resolveSiteFromPath("/inputhalo/privacy")?.id).toBe("inputhalo");
+  });
+
+  it("matches the exact prefix (landing page)", () => {
+    expect(resolveSiteFromPath("/nessa")?.id).toBe("nessa");
+    expect(resolveSiteFromPath("/gaze")?.id).toBe("gaze");
+  });
+
+  it("returns null for non-subdomain paths", () => {
+    expect(resolveSiteFromPath("/")).toBeNull();
+    expect(resolveSiteFromPath("/contact")).toBeNull();
+    expect(resolveSiteFromPath("/blog/post")).toBeNull();
+    expect(resolveSiteFromPath("/downloads")).toBeNull();
+  });
+
+  it("does not match prefix substrings (no false positives)", () => {
+    // `/nessa-extra` must NOT match `/nessa`.
+    expect(resolveSiteFromPath("/nessa-extra")).toBeNull();
+    expect(resolveSiteFromPath("/gazette")).toBeNull();
+  });
+
+  it("handles empty / null / undefined", () => {
+    expect(resolveSiteFromPath("")).toBeNull();
+    expect(resolveSiteFromPath(null)).toBeNull();
+    expect(resolveSiteFromPath(undefined)).toBeNull();
+  });
+
+  it("returns the full SITE_CONFIG entry", () => {
+    expect(resolveSiteFromPath("/nessa/contact")).toEqual(SITE_CONFIG.nessa);
+    expect(resolveSiteFromPath("/gaze")).toEqual(SITE_CONFIG.gaze);
+  });
+});
+
+describe("resolveSiteFromLocation", () => {
+  it("prefers the host when it identifies a subdomain", () => {
+    expect(resolveSiteFromLocation("nessa.freno.me", "/contact").id).toBe(
+      "nessa"
+    );
+    expect(resolveSiteFromLocation("gaze.localhost", "/").id).toBe("gaze");
+  });
+
+  it("falls back to the path prefix when the host is localhost/main", () => {
+    expect(resolveSiteFromLocation("localhost", "/nessa/contact").id).toBe(
+      "nessa"
+    );
+    expect(resolveSiteFromLocation("localhost", "/lineage/").id).toBe(
+      "lineage"
+    );
+    expect(resolveSiteFromLocation("freno.me", "/gaze/downloads").id).toBe(
+      "gaze"
+    );
+  });
+
+  it("returns main when neither host nor path identifies a subdomain", () => {
+    expect(resolveSiteFromLocation("localhost", "/contact").id).toBe("main");
+    expect(resolveSiteFromLocation("freno.me", "/").id).toBe("main");
+  });
+});