forked from mirrors/iceshrimp
39 lines
1.2 KiB
TypeScript
39 lines
1.2 KiB
TypeScript
import promiseLimit from "promise-limit";
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import { toArray, unique } from "@/prelude/array.js";
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import type { CacheableUser } from "@/models/entities/user.js";
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import { User } from "@/models/entities/user.js";
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import type { IObject, IApMention } from "../type.js";
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import { isMention } from "../type.js";
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import Resolver from "../resolver.js";
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import { resolvePerson } from "./person.js";
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import { RecursionLimiter } from "@/models/repositories/user-profile.js";
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export async function extractApMentions(
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tags: IObject | IObject[] | null | undefined,
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limiter: RecursionLimiter = new RecursionLimiter(20)
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) {
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const hrefs = unique(
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extractApMentionObjects(tags).map((x) => x.href as string),
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);
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const resolver = new Resolver();
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const limit = promiseLimit<CacheableUser | null>(2);
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const mentionedUsers = (
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await Promise.all(
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hrefs.map((x) =>
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limit(() => resolvePerson(x, resolver, limiter).catch(() => null)),
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),
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)
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).filter((x): x is CacheableUser => x != null);
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return mentionedUsers;
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}
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export function extractApMentionObjects(
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tags: IObject | IObject[] | null | undefined,
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): IApMention[] {
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if (tags == null) return [];
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return toArray(tags).filter(isMention);
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}
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