import { prisma } from "@/lib/api/db";
import { UsersAndCollections } from "@prisma/client";
import getPermission from "@/lib/api/getPermission";
import removeFile from "@/lib/api/storage/removeFile";

export default async function deleteLinksById(userId: number, linkIds: number[]) {
	if (!linkIds || linkIds.length === 0) {
		return { response: "Please choose valid links.", status: 401 };
	}

	const collectionIsAccessibleArray = [];

	// Check if the user has access to the collection of each link
	// if any of the links are not accessible, return an error
	// if all links are accessible, continue with the deletion
	// and add the collection to the collectionIsAccessibleArray
	for (const linkId of linkIds) {
		const collectionIsAccessible = await getPermission({ userId, linkId });

		const memberHasAccess = collectionIsAccessible?.members.some(
			(e: UsersAndCollections) => e.userId === userId && e.canDelete
		);

		if (!(collectionIsAccessible?.ownerId === userId || memberHasAccess)) {
			return { response: "Collection is not accessible.", status: 401 };
		}

		collectionIsAccessibleArray.push(collectionIsAccessible);
	}

	const deletedLinks = await prisma.link.deleteMany({
		where: {
			id: { in: linkIds },
		},
	});

	// Loop through each link and delete the associated files
	// if the user has access to the collection
	for (let i = 0; i < linkIds.length; i++) {
		const linkId = linkIds[i];
		const collectionIsAccessible = collectionIsAccessibleArray[i];

		removeFile({
			filePath: `archives/${collectionIsAccessible?.id}/${linkId}.pdf`,
		});
		removeFile({
			filePath: `archives/${collectionIsAccessible?.id}/${linkId}.png`,
		});
		removeFile({
			filePath: `archives/${collectionIsAccessible?.id}/${linkId}_readability.json`,
		});
	}

	return { response: deletedLinks, status: 200 };
}