From 44bde791b42db71d3e736df0833e18f44f3b62ae Mon Sep 17 00:00:00 2001
From: Kieran <kieran@harkin.me>
Date: Mon, 27 Nov 2023 23:02:12 +0000
Subject: [PATCH] feat: simple comments

---
 src/const.ts                  |  1 +
 src/element/comments.tsx      | 59 +++++++++++++++++++++++++++++++++++
 src/element/mention.tsx       | 11 +++++++
 src/element/profile-image.tsx | 24 +++++++++-----
 src/element/text.tsx          | 31 ++++++++++++++++++
 src/element/torrent-list.tsx  |  9 ++----
 src/page/torrent.tsx          |  6 +++-
 7 files changed, 126 insertions(+), 15 deletions(-)
 create mode 100644 src/element/comments.tsx
 create mode 100644 src/element/mention.tsx
 create mode 100644 src/element/text.tsx

diff --git a/src/const.ts b/src/const.ts
index 660de1c..3380915 100644
--- a/src/const.ts
+++ b/src/const.ts
@@ -215,6 +215,7 @@ export const Categories = [
 ] as Array<Category>;
 
 export const TorrentKind = 2003 as EventKind;
+export const TorrentCommentKind = 2004 as EventKind;
 
 export function FormatBytes(b: number, f?: number) {
   f ??= 2;
diff --git a/src/element/comments.tsx b/src/element/comments.tsx
new file mode 100644
index 0000000..f75706b
--- /dev/null
+++ b/src/element/comments.tsx
@@ -0,0 +1,59 @@
+import { useState } from "react";
+import { NostrLink, NoteCollection, RequestBuilder } from "@snort/system";
+import { useRequestBuilder } from "@snort/system-react";
+import { unwrap } from "@snort/shared";
+
+import { ProfileImage } from "./profile-image";
+import { Button } from "./button";
+import { useLogin } from "../login";
+import { Text } from "./text";
+import { TorrentCommentKind } from "../const";
+
+export function Comments({ link }: { link: NostrLink }) {
+  const rb = new RequestBuilder(`replies:${link.encode()}`);
+  rb.withFilter().kinds([TorrentCommentKind]).replyToLink([link]);
+  const comments = useRequestBuilder(NoteCollection, rb);
+
+  return (
+    <div className="flex flex-col gap-2">
+      <WriteComment link={link} />
+      {comments.data
+        ?.sort((a, b) => (a.created_at > b.created_at ? -1 : 1))
+        .map((a) => (
+          <div className="flex flex-col gap-2 rounded p-2 bg-slate-900">
+            <ProfileImage pubkey={a.pubkey} withName={true}>
+              <span className="text-slate-400 text-sm">{new Date(a.created_at * 1000).toLocaleString()}</span>
+            </ProfileImage>
+            <Text content={a.content} tags={a.tags} />
+          </div>
+        ))}
+    </div>
+  );
+}
+
+function WriteComment({ link }: { link: NostrLink }) {
+  const login = useLogin();
+  const [msg, setMsg] = useState("");
+  if (!login) return;
+
+  async function sendComment() {
+    const ev = await login?.builder.generic((eb) => {
+      return eb
+        .kind(TorrentCommentKind)
+        .content(msg)
+        .tag([...unwrap(link.toEventTag()), "root"]);
+    });
+    console.debug(ev);
+    if (ev) {
+      await login?.system.BroadcastEvent(ev);
+    }
+  }
+
+  return (
+    <div className="rounded p-2 bg-slate-900">
+      <h3>Write a Comment</h3>
+      <textarea className="w-full" value={msg} onChange={(e) => setMsg(e.target.value)}></textarea>
+      <Button onClick={sendComment}>Send</Button>
+    </div>
+  );
+}
diff --git a/src/element/mention.tsx b/src/element/mention.tsx
new file mode 100644
index 0000000..3802725
--- /dev/null
+++ b/src/element/mention.tsx
@@ -0,0 +1,11 @@
+import { hexToBech32 } from "@snort/shared";
+import { NostrLink } from "@snort/system";
+import { useUserProfile } from "@snort/system-react";
+import { Link } from "react-router-dom";
+
+export function Mention({ link }: { link: NostrLink }) {
+  const profile = useUserProfile(link.id);
+  const npub = hexToBech32("npub", link.id);
+
+  return <Link to={`/p/${link.encode()}`}>{profile?.name ?? npub.slice(0, 12)}</Link>;
+}
diff --git a/src/element/profile-image.tsx b/src/element/profile-image.tsx
index 3285b5b..e6f38ab 100644
--- a/src/element/profile-image.tsx
+++ b/src/element/profile-image.tsx
@@ -6,9 +6,10 @@ import { Link } from "react-router-dom";
 type ProfileImageProps = HTMLProps<HTMLDivElement> & {
   pubkey?: string;
   size?: number;
+  withName?: boolean;
 };
 
-export function ProfileImage({ pubkey, size, ...props }: ProfileImageProps) {
+export function ProfileImage({ pubkey, size, withName, children, ...props }: ProfileImageProps) {
   const profile = useUserProfile(pubkey);
   const v = {
     backgroundImage: `url(${profile?.picture})`,
@@ -18,12 +19,19 @@ export function ProfileImage({ pubkey, size, ...props }: ProfileImageProps) {
     v.height = `${size}px`;
   }
   return (
-    <Link to={pubkey ? `/p/${new NostrLink(NostrPrefix.Profile, pubkey).encode()}` : ""}>
-      <div
-        {...props}
-        className="rounded-full aspect-square w-12 bg-slate-800 border border-slate-200 bg-cover bg-center"
-        style={v}
-      ></div>
-    </Link>
+    <div className="flex items-center justify-between">
+      <Link
+        to={pubkey ? `/p/${new NostrLink(NostrPrefix.Profile, pubkey).encode()}` : ""}
+        className="flex items-center gap-2"
+      >
+        <div
+          {...props}
+          className="rounded-full aspect-square w-12 bg-slate-800 border border-slate-200 bg-cover bg-center"
+          style={v}
+        ></div>
+        {withName === true && <>{profile?.name}</>}
+      </Link>
+      {children}
+    </div>
   );
 }
diff --git a/src/element/text.tsx b/src/element/text.tsx
new file mode 100644
index 0000000..5590979
--- /dev/null
+++ b/src/element/text.tsx
@@ -0,0 +1,31 @@
+import { ParsedFragment, transformText, tryParseNostrLink } from "@snort/system";
+import { useMemo } from "react";
+import { Mention } from "./mention";
+import { Link } from "react-router-dom";
+
+export function Text({ content, tags }: { content: string; tags: Array<Array<string>> }) {
+  const frags = useMemo(() => transformText(content, tags), [content, tags]);
+
+  function renderFrag(f: ParsedFragment) {
+    switch (f.type) {
+      case "mention":
+      case "link": {
+        const link = tryParseNostrLink(f.content);
+        if (link) {
+          return <Mention link={link} />;
+        } else {
+          return (
+            <Link to={f.content} target="_blank">
+              {f.content}
+            </Link>
+          );
+        }
+      }
+      default: {
+        return <span>{f.content}</span>;
+      }
+    }
+  }
+
+  return <div className="text">{frags.map(renderFrag)}</div>;
+}
diff --git a/src/element/torrent-list.tsx b/src/element/torrent-list.tsx
index 7cfe5ec..7f4b68a 100644
--- a/src/element/torrent-list.tsx
+++ b/src/element/torrent-list.tsx
@@ -1,10 +1,9 @@
 import "./torrent-list.css";
-import { hexToBech32 } from "@snort/shared";
-import { NostrLink, TaggedNostrEvent } from "@snort/system";
-import { useUserProfile } from "@snort/system-react";
+import { NostrLink, NostrPrefix, TaggedNostrEvent } from "@snort/system";
 import { FormatBytes } from "../const";
 import { Link } from "react-router-dom";
 import { MagnetLink } from "./magnet";
+import { Mention } from "./mention";
 
 export function TorrentList({ items }: { items: Array<TaggedNostrEvent> }) {
   return (
@@ -29,13 +28,11 @@ export function TorrentList({ items }: { items: Array<TaggedNostrEvent> }) {
 }
 
 function TorrentTableEntry({ item }: { item: TaggedNostrEvent }) {
-  const profile = useUserProfile(item.pubkey);
   const name = item.tags.find((a) => a[0] === "title")?.at(1);
   const size = item.tags
     .filter((a) => a[0] === "file")
     .map((a) => Number(a[2]))
     .reduce((acc, v) => (acc += v), 0);
-  const npub = hexToBech32("npub", item.pubkey);
   return (
     <tr className="hover:bg-slate-800">
       <td>
@@ -69,7 +66,7 @@ function TorrentTableEntry({ item }: { item: TaggedNostrEvent }) {
       </td>
       <td>{FormatBytes(size)}</td>
       <td>
-        <Link to={`/p/${npub}`}>{profile?.name ?? npub.slice(0, 12)}</Link>
+        <Mention link={new NostrLink(NostrPrefix.PublicKey, item.pubkey)} />
       </td>
     </tr>
   );
diff --git a/src/page/torrent.tsx b/src/page/torrent.tsx
index 204ddd7..7a02324 100644
--- a/src/page/torrent.tsx
+++ b/src/page/torrent.tsx
@@ -1,5 +1,5 @@
 import { unwrap } from "@snort/shared";
-import { NoteCollection, RequestBuilder, TaggedNostrEvent, parseNostrLink } from "@snort/system";
+import { NostrLink, NoteCollection, RequestBuilder, TaggedNostrEvent, parseNostrLink } from "@snort/system";
 import { useRequestBuilder } from "@snort/system-react";
 import { useLocation, useNavigate, useParams } from "react-router-dom";
 import { FormatBytes, TorrentKind } from "../const";
@@ -7,6 +7,7 @@ import { ProfileImage } from "../element/profile-image";
 import { MagnetLink } from "../element/magnet";
 import { useLogin } from "../login";
 import { Button } from "../element/button";
+import { Comments } from "../element/comments";
 
 export function TorrentPage() {
   const location = useLocation();
@@ -28,6 +29,7 @@ export function TorrentPage() {
 export function TorrentDetail({ item }: { item: TaggedNostrEvent }) {
   const login = useLogin();
   const navigate = useNavigate();
+  const link = NostrLink.fromEvent(item);
   const name = item.tags.find((a) => a[0] === "title")?.at(1);
   const size = item.tags
     .filter((a) => a[0] === "file")
@@ -83,6 +85,8 @@ export function TorrentDetail({ item }: { item: TaggedNostrEvent }) {
           Delete
         </Button>
       )}
+      <h3>Comments</h3>
+      <Comments link={link} />
     </div>
   );
 }