import { Router, Request, Response } from "express";
import { User } from "@fosscord/util";
import { route } from "@fosscord/api";

const router: Router = Router();

export interface UserRelationsResponse {
	object: {
		id?: string;
		username?: string;
		avatar?: string;
		discriminator?: string;
		public_flags?: number;
	};
}

router.get(
	"/",
	route({ test: { response: { body: "UserRelationsResponse" } } }),
	async (req: Request, res: Response) => {
		var mutual_relations: object[] = [];
		const requested_relations = await User.findOneOrFail({
			where: { id: req.params.id },
			relations: ["relationships"],
		});
		const self_relations = await User.findOneOrFail({
			where: { id: req.user_id },
			relations: ["relationships"],
		});

		for (const rmem of requested_relations.relationships) {
			for (const smem of self_relations.relationships)
				if (
					rmem.to_id === smem.to_id &&
					rmem.type === 1 &&
					rmem.to_id !== req.user_id
				) {
					var relation_user = await User.getPublicUser(rmem.to_id);

					mutual_relations.push({
						id: relation_user.id,
						username: relation_user.username,
						avatar: relation_user.avatar,
						discriminator: relation_user.discriminator,
						public_flags: relation_user.public_flags,
					});
				}
		}

		res.json(mutual_relations);
	},
);

export default router;