Adds tabs to the campaign page, but they don't do much yet

src/routes/_app/_authenticated/campaigns.$campaignId.tsx

@@ -1,21 +1,41 @@
-import { useCallback, useEffect, useState } from "react";
-import { createFileRoute, Link } from "@tanstack/react-router";
-import { pb } from "@/lib/pocketbase";
+import { DocumentRow } from "@/components/documents/DocumentRow";
 import { SessionRow } from "@/components/documents/session/SessionRow";
-import { Button } from "@headlessui/react";
-import { Loader } from "@/components/Loader";
-import type { Campaign, Relationship, Session } from "@/lib/types";
 import { Tab, TabbedLayout } from "@/components/layout/TabbedLayout";
+import { Loader } from "@/components/Loader";
+import { useDocument } from "@/context/document/hooks";
+import { pb } from "@/lib/pocketbase";
+import type { Campaign, DocumentId, Relationship, Session } from "@/lib/types";
+import { Button } from "@headlessui/react";
+import { createFileRoute, Link } from "@tanstack/react-router";
+import { useCallback, useEffect, useState } from "react";
+import { z } from "zod";
+
+const CampaignTabs = {
+  sessions: "Sessions",
+  npcs: "NPCs",
+  locations: "Locations",
+  factions: "Factions",
+  threads: "Threads",
+} as const;
+
+const campaignSearchSchema = z.object({
+  tab: z
+    .enum(Object.keys(CampaignTabs) as (keyof typeof CampaignTabs)[])
+    .default("sessions"),
+  docId: z.optional(z.string().transform((s) => s as DocumentId)),
+});
 
 export const Route = createFileRoute(
   "/_app/_authenticated/campaigns/$campaignId",
 )({
   component: RouteComponent,
   pendingComponent: Loader,
+  validateSearch: (s) => campaignSearchSchema.parse(s),
 });
 
 function RouteComponent() {
   const params = Route.useParams();
+  const { tab, docId } = Route.useSearch();
 
   const [loading, setLoading] = useState(true);
   const [campaign, setCampaign] = useState<Campaign | null>(null);
@@ -93,16 +113,19 @@ function RouteComponent() {
           ← Back to campaigns
         </Link>
       }
-      tabs={[
+      tabs={Object.entries(CampaignTabs).map(([key, label]) => (
         <Tab
-          label="sessions"
-          active
-          to="/campaigns/$campaignId"
+          label={label}
+          active={tab === key}
+          to={Route.to}
           params={{
             campaignId: campaign.id,
           }}
-        />,
-      ]}
+          search={{
+            tab: key,
+          }}
+        />
+      ))}
       content={
         <div>
           <div className="flex justify-between">
@@ -135,6 +158,19 @@ function RouteComponent() {
           )}
         </div>
       }
+      flyout={docId && <Flyout key={docId} docId={docId} />}
     />
   );
 }
+function Flyout({ docId }: { docId: DocumentId }) {
+  const { docResult } = useDocument(docId);
+
+  if (docResult?.type !== "ready") {
+    return <Loader />;
+  }
+
+  const doc = docResult.value.doc;
+
+  // TODO: Document preview
+  return <DocumentRow document={doc} root={doc} />;
+}