import { v4 as uuid } from "uuid";
import config from "@/config/index.js";
import { getUserKeypair } from "@/misc/keypair-store.js";
import type { User } from "@/models/entities/user.js";
import { LdSignature } from "../misc/ld-signature.js";
import type { IActivity } from "../type.js";

export const renderActivity = (x: any): IActivity | null => {
	if (x == null) return null;

	if (typeof x === "object" && x.id == null) {
		x.id = `${config.url}/${uuid()}`;
	}

	return Object.assign(
		{
			"@context": [
				"https://www.w3.org/ns/activitystreams",
				"https://w3id.org/security/v1",
				{
					// as non-standards
					manuallyApprovesFollowers: "as:manuallyApprovesFollowers",
					movedToUri: "as:movedTo",
					sensitive: "as:sensitive",
					Hashtag: "as:Hashtag",
					quoteUri: "fedibird:quoteUri",
					quoteUrl: "as:quoteUrl",
					// Mastodon
					toot: "http://joinmastodon.org/ns#",
					Emoji: "toot:Emoji",
					featured: "toot:featured",
					discoverable: "toot:discoverable",
					// schema
					schema: "http://schema.org#",
					PropertyValue: "schema:PropertyValue",
					value: "schema:value",
					// Misskey
					misskey: "https://misskey-hub.net/ns#",
					_misskey_content: "misskey:_misskey_content",
					_misskey_quote: "misskey:_misskey_quote",
					_misskey_reaction: "misskey:_misskey_reaction",
					_misskey_votes: "misskey:_misskey_votes",
					_misskey_talk: "misskey:_misskey_talk",
					isCat: "misskey:isCat",
					// Fedibird
					fedibird: "http://fedibird.com/ns#",
					// vcard
					vcard: "http://www.w3.org/2006/vcard/ns#",
				},
			],
		},
		x,
	);
};

export const attachLdSignature = async (
	activity: any,
	user: { id: User["id"]; host: null },
): Promise<IActivity | null> => {
	if (activity == null) return null;

	const keypair = await getUserKeypair(user.id);

	const ldSignature = new LdSignature();
	ldSignature.debug = false;
	activity = await ldSignature.signRsaSignature2017(
		activity,
		keypair.privateKey,
		`${config.url}/users/${user.id}#main-key`,
	);

	return activity;
};