Feat: Discord RPC

src/lib/discord.ts

@@ -0,0 +1,81 @@
+import { start, stop, setActivity, clearActivity } from "tauri-plugin-drpc";
+import { Activity, Assets, Button, Timestamps }     from "tauri-plugin-drpc/activity";
+import type { Manga, Chapter }                       from "./types";
+
+const APP_ID         = "1487894643613106298";
+const FALLBACK_IMAGE = "moku_logo";
+
+function isPublicUrl(url: string | null | undefined): boolean {
+  return typeof url === "string" && url.startsWith("https://");
+}
+
+function resolveCoverImage(manga: Manga): string {
+  return isPublicUrl(manga.thumbnailUrl) ? manga.thumbnailUrl : FALLBACK_IMAGE;
+}
+
+function trunc(s: string, max = 128): string {
+  return s.length <= max ? s : `${s.slice(0, max - 1)}…`;
+}
+
+function formatChapter(chapter: Chapter): string {
+  const n = chapter.chapterNumber;
+  return `Chapter ${Number.isInteger(n) ? n : n.toFixed(1)}`;
+}
+
+const BUTTONS = [
+  new Button("GitHub", "https://github.com/Youwes09/Moku"),
+  new Button("Discord", "https://discord.gg/Jq3pwuNqPp"),
+];
+
+export async function initRpc(): Promise<void> {
+  await start(APP_ID)
+    .then(() => console.log("[discord] RPC started"))
+    .catch((e) => console.error("[discord] initRpc failed:", e));
+}
+
+export async function setReading(manga: Manga, chapter: Chapter): Promise<void> {
+  const assets = new Assets()
+    .setLargeImage(resolveCoverImage(manga))
+    .setLargeText(trunc(manga.title))
+    .setSmallImage(FALLBACK_IMAGE)
+    .setSmallText("Moku");
+
+  const activity = new Activity()
+    .setDetails(trunc(manga.title))
+    .setState(`${formatChapter(chapter)}  ·  Reading`)
+    .setAssets(assets)
+    .setTimestamps(new Timestamps(Date.now()));
+  activity.setButton(BUTTONS);
+
+  await setActivity(activity)
+    .then(() => console.log("[discord] reading →", manga.title, formatChapter(chapter)))
+    .catch((e) => console.error("[discord] setActivity failed:", e));
+}
+
+export async function setIdle(): Promise<void> {
+  const assets = new Assets()
+    .setLargeImage(FALLBACK_IMAGE)
+    .setLargeText("Moku");
+
+  const activity = new Activity()
+    .setDetails("Browsing")
+    .setAssets(assets)
+    .setTimestamps(new Timestamps(Date.now()));
+  activity.setButton(BUTTONS);
+
+  await setActivity(activity)
+    .then(() => console.log("[discord] idle"))
+    .catch((e) => console.error("[discord] setActivity failed (idle):", e));
+}
+
+export async function clearReading(): Promise<void> {
+  await clearActivity()
+    .then(() => console.log("[discord] activity cleared"))
+    .catch((e) => console.error("[discord] clearActivity failed:", e));
+}
+
+export async function destroyRpc(): Promise<void> {
+  await stop()
+    .then(() => console.log("[discord] RPC stopped"))
+    .catch((e) => console.error("[discord] destroyRpc failed:", e));
+}