feat(tools): random follower finder

1 files changed, 56 insertions, 0 deletions

diff --git a/src/lib/AniList/following.ts b/src/lib/AniList/following.ts
new file mode 100644
index 00000000..1bba66b9
--- /dev/null
+++ b/src/lib/AniList/following.ts
@@ -0,0 +1,56 @@
+import { user, type User } from './user';
+
+export interface FollowingPage {
+	data: {
+		Page: {
+			pageInfo: {
+				hasNextPage: boolean;
+			};
+			following: Partial<User>[];
+		};
+	};
+}
+
+const followingPage = async (page: number, id: number): Promise<FollowingPage> =>
+	await (
+		await fetch('https://graphql.anilist.co', {
+			method: 'POST',
+			headers: {
+				'Content-Type': 'application/json',
+				Accept: 'application/json'
+			},
+			body: JSON.stringify({
+				query: `{
+					Page(page: ${page}) {
+    				pageInfo { hasNextPage }
+						following(userId: ${id}) { name id }
+					}
+				}`
+			})
+		})
+	).json();
+
+export const followers = async (name: string): Promise<Partial<User>[]> => {
+	const activities = [];
+	let page = 1;
+	const id = (await user(name)).id;
+	let currentPage = await followingPage(page, id);
+
+	for (const activity of currentPage.data.Page.following) activities.push(activity);
+
+	while (currentPage['data']['Page']['pageInfo']['hasNextPage']) {
+		for (const activity of currentPage.data.Page.following) activities.push(activity);
+
+		page += 1;
+		currentPage = await followingPage(page, id);
+	}
+
+	for (const activity of currentPage.data.Page.following) activities.push(activity);
+
+	for (let i = activities.length - 1; i > 0; i--) {
+		const j = Math.floor(Math.random() * (i + 1));
+		[activities[i], activities[j]] = [activities[j], activities[i]];
+	}
+
+	return activities;
+};