From 8751ba26ebf7b7761b9e237f2bf3453623dd1018 Mon Sep 17 00:00:00 2001
From: polwex <polwex@sortug.com>
Date: Mon, 6 Oct 2025 10:13:39 +0700
Subject: added frontend WS connection for demonstration purposes

---
 gui/src/logic/nostrill.ts | 139 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 gui/src/logic/nostrill.ts

(limited to 'gui/src/logic/nostrill.ts')

diff --git a/gui/src/logic/nostrill.ts b/gui/src/logic/nostrill.ts
new file mode 100644
index 0000000..bd5fc9c
--- /dev/null
+++ b/gui/src/logic/nostrill.ts
@@ -0,0 +1,139 @@
+import type { Event } from "@/types/nostr";
+import type { Content, FC, Poast } from "@/types/trill";
+import { engagementBunt, openLock } from "./bunts";
+import type { UserType } from "@/types/nostrill";
+import type { Result } from "@/types/ui";
+import { isValidPatp } from "urbit-ob";
+export function eventsToFc(postEvents: Event[]): FC {
+  const fc = postEvents.reduce(
+    (acc: FC, event: Event) => {
+      const p = eventToPoast(event);
+      if (!p) return acc;
+      acc.feed[p.id] = p;
+      if (!acc.start || event.created_at < Number(acc.start)) acc.start = p.id;
+      if (!acc.end || event.created_at > Number(acc.end)) acc.end = p.id;
+      return acc;
+    },
+    { feed: {}, start: null, end: null } as FC,
+  );
+  return fc;
+}
+export function eventToPoast(event: Event): Poast | null {
+  if (event.kind !== 1) return null;
+  const contents: Content = [{ paragraph: [{ text: event.content }] }];
+  const ts = event.created_at * 1000;
+  const id = `${ts}`;
+  const poast: Poast = {
+    id,
+    host: event.pubkey,
+    author: event.pubkey,
+    contents,
+    thread: id,
+    parent: null,
+    read: openLock,
+    write: openLock,
+    tags: [],
+    time: ts,
+    engagement: engagementBunt,
+    children: [],
+  };
+  for (const tag of event.tags) {
+    const f = tag[0];
+    if (!f) continue;
+    const ff = f.toLowerCase();
+    console.log("tag", ff);
+    if (ff === "e") {
+      const [, eventId, _relayURL, marker, _pubkey, ..._] = tag;
+      // TODO
+      if (marker === "root") poast.thread = eventId;
+      else if (marker === "reply") poast.parent = eventId;
+    }
+    //
+    if (ff === "r")
+      contents.push({
+        paragraph: [{ link: { show: tag[1]!, href: tag[1]! } }],
+      });
+    if (ff === "p")
+      contents.push({
+        paragraph: [{ ship: tag[1]! }],
+      });
+    if (ff === "q")
+      contents.push({
+        ref: {
+          type: "nostr",
+          ship: tag[1]!,
+          path: tag[2] || "" + `/${tag[3] || ""}`,
+        },
+      });
+  }
+  return poast;
+}
+
+export function userToString(user: UserType): Result<string> {
+  if ("urbit" in user) {
+    const isValid = isValidPatp(user.urbit);
+    if (isValid) return { ok: user.urbit };
+    else return { error: "invalid @p" };
+  } else if ("nostr" in user) return { ok: user.nostr };
+  else return { error: "unknown user" };
+}
+export function isValidNostrPubkey(pubkey: string): boolean {
+  // TODO
+  if (pubkey.length !== 64) return false;
+  try {
+    BigInt("0x" + pubkey);
+    return true;
+  } catch (_e) {
+    return false;
+  }
+}
+// NOTE common tags:
+// imeta
+// client
+// nonce
+// proxy
+
+// export function parseEventTags(event: Event) {
+//   const effects: any[] = [];
+//   for (const tag of event.tags) {
+//     const f = tag[0];
+//     if (!f) continue;
+//     const ff = f.toLowerCase();
+//     switch (ff) {
+//       case "p": {
+//         const [, pubkey, relayURL, ..._] = tag;
+//         // people mention
+//         break;
+//       }
+//       case "e": {
+//         // marker to be "root" or "reply"
+//         // event mention
+//         break;
+//       }
+//       case "q": {
+//         const [, eventId, relayURL, pubkey, ..._] = tag;
+//         // event mention
+//         break;
+//       }
+//       case "t": {
+//         const [, hashtag, ..._] = tag;
+//         // event mention
+//         break;
+//       }
+//       case "r": {
+//         const [, url, ..._] = tag;
+//         // event mention
+//         break;
+//       }
+//       case "alt": {
+//         const [, summary, ..._] = tag;
+//         // event mention
+//         break;
+//       }
+//       default: {
+//         break;
+//       }
+//     }
+//   }
+//   return effects;
+// }
-- 
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