1 files changed, 80 insertions, 0 deletions
diff --git a/src/api/routes/guilds/#guild_id/widget.json.ts b/src/api/routes/guilds/#guild_id/widget.json.ts
new file mode 100644
index 00000000..be5bf23f
--- /dev/null
+++ b/src/api/routes/guilds/#guild_id/widget.json.ts
@@ -0,0 +1,80 @@
+import { Request, Response, Router } from "express";
+import { Config, Permissions, Guild, Invite, Channel, Member } from "@fosscord/util";
+import { HTTPError } from "lambert-server";
+import { random, route } from "@fosscord/api";
+
+const router: Router = Router();
+
+// Undocumented API notes:
+// An invite is created for the widget_channel_id on request (only if an existing one created by the widget doesn't already exist)
+// This invite created doesn't include an inviter object like user created ones and has a default expiry of 24 hours
+// Missing user object information is intentional (https://github.com/discord/discord-api-docs/issues/1287)
+// channels returns voice channel objects where @everyone has the CONNECT permission
+// members (max 100 returned) is a sample of all members, and bots par invisible status, there exists some alphabetical distribution pattern between the members returned
+
+// https://discord.com/developers/docs/resources/guild#get-guild-widget
+// TODO: Cache the response for a guild for 5 minutes regardless of response
+router.get("/", route({}), async (req: Request, res: Response) => {
+	const { guild_id } = req.params;
+
+	const guild = await Guild.findOneOrFail({ where: { id: guild_id } });
+	if (!guild.widget_enabled) throw new HTTPError("Widget Disabled", 404);
+
+	// Fetch existing widget invite for widget channel
+	var invite = await Invite.findOne({ where: { channel_id: guild.widget_channel_id } });
+
+	if (guild.widget_channel_id && !invite) {
+		// Create invite for channel if none exists
+		// TODO: Refactor invite create code to a shared function
+		const max_age = 86400; // 24 hours
+		const expires_at = new Date(max_age * 1000 + Date.now());
+
+		invite = await Invite.create({
+			code: random(),
+			temporary: false,
+			uses: 0,
+			max_uses: 0,
+			max_age: max_age,
+			expires_at,
+			created_at: new Date(),
+			guild_id,
+			channel_id: guild.widget_channel_id,
+		}).save();
+	}
+
+	// Fetch voice channels, and the @everyone permissions object
+	const channels = [] as any[];
+
+	(await Channel.find({ where: { guild_id: guild_id, type: 2 }, order: { position: "ASC" } })).filter((doc) => {
+		// Only return channels where @everyone has the CONNECT permission
+		if (
+			doc.permission_overwrites === undefined ||
+			Permissions.channelPermission(doc.permission_overwrites, Permissions.FLAGS.CONNECT) === Permissions.FLAGS.CONNECT
+		) {
+			channels.push({
+				id: doc.id,
+				name: doc.name,
+				position: doc.position
+			});
+		}
+	});
+
+	// Fetch members
+	// TODO: Understand how Discord's max 100 random member sample works, and apply to here (see top of this file)
+	let members = await Member.find({ where: { guild_id: guild_id } });
+
+	// Construct object to respond with
+	const data = {
+		id: guild_id,
+		name: guild.name,
+		instant_invite: invite?.code,
+		channels: channels,
+		members: members,
+		presence_count: guild.presence_count
+	};
+
+	res.set("Cache-Control", "public, max-age=300");
+	return res.json(data);
+});
+
+export default router;