Support partials for homepage and contacts

Always using kind:30023 articles

src/lib/partials.svelte.ts

@@ -0,0 +1,67 @@
+import { SimplePool } from "@nostr/tools";
+import { RELAY_URL } from "$lib/config";
+import { adminPubkeys } from "$lib/admins.svelte";
+
+// Named slots a partial can fill. The NIP-23 `d` tag carries the slot name.
+export type PartialSlot = "home" | "contacts";
+const SLOTS = new Set<string>(["home", "contacts"]);
+
+export type Partial = {
+  id: string;
+  slot: PartialSlot;
+  title: string;
+  content: string; // markdown body
+  pubkey: string;
+  createdAt: number;
+};
+
+let all = $state<Partial[]>([]);
+let loaded = $state(false);
+
+export const partialsStore = {
+  // The newest admin-authored partial for a slot, or undefined. The relay query
+  // is open, so the trusted admin set is the gate; resolving the winner here
+  // (rather than at load time) keeps a non-admin from shadowing it with a newer
+  // event, and picks up the admin set once it finishes loading in full mode.
+  get(slot: PartialSlot): Partial | undefined {
+    const admins = new Set(adminPubkeys.list);
+    let best: Partial | undefined;
+    for (const p of all) {
+      if (p.slot !== slot || !admins.has(p.pubkey)) continue;
+      if (!best || p.createdAt > best.createdAt) best = p;
+    }
+    return best;
+  },
+  get loaded() {
+    return loaded;
+  },
+};
+
+// Partials are kind 30023 (NIP-23 long-form) tagged ["t", "squalk-partial"];
+// the `d` tag names the slot the article fills.
+export async function loadPartials() {
+  const pool = new SimplePool();
+  try {
+    const events = await pool.querySync([RELAY_URL], {
+      kinds: [30023],
+      "#t": ["squalk-partial"],
+    });
+    const next: Partial[] = [];
+    for (const e of events) {
+      const slot = e.tags.find((t) => t[0] === "d")?.[1];
+      if (!slot || !SLOTS.has(slot)) continue;
+      next.push({
+        id: e.id,
+        slot: slot as PartialSlot,
+        title: e.tags.find((t) => t[0] === "title")?.[1] ?? slot,
+        content: e.content,
+        pubkey: e.pubkey,
+        createdAt: e.created_at,
+      });
+    }
+    all = next;
+  } finally {
+    loaded = true;
+    pool.close([RELAY_URL]);
+  }
+}