import express from 'express';
import { Db } from '..';
import config from '../../config';
import type { WorkflowRequest } from '../requests';
import { isSharingEnabled, rightDiff } from '../UserManagement/UserManagementHelper';
import { EEWorkflowsService as EEWorkflows } from './workflows.services.ee';

// eslint-disable-next-line @typescript-eslint/naming-convention
export const EEWorkflowController = express.Router();

EEWorkflowController.use((req, res, next) => {
	if (!isSharingEnabled() || !config.getEnv('enterprise.workflowSharingEnabled')) {
		// skip ee router and use free one
		next('router');
		return;
	}
	// use ee router
	next();
});

/**
 * (EE) PUT /workflows/:id/share
 *
 * Grant or remove users' access to a workflow.
 */

EEWorkflowController.put('/:workflowId/share', async (req: WorkflowRequest.Share, res) => {
	const { workflowId } = req.params;
	const { shareWithIds } = req.body;

	if (!Array.isArray(shareWithIds) || !shareWithIds.every((userId) => typeof userId === 'string')) {
		return res.status(400).send('Bad Request');
	}

	const { ownsWorkflow, workflow } = await EEWorkflows.isOwned(req.user, workflowId);

	if (!ownsWorkflow || !workflow) {
		return res.status(403).send();
	}

	let newShareeIds: string[] = [];
	await Db.transaction(async (trx) => {
		// remove all sharings that are not supposed to exist anymore
		await EEWorkflows.pruneSharings(trx, workflowId, [req.user.id, ...shareWithIds]);

		const sharings = await EEWorkflows.getSharings(trx, workflowId);

		// extract the new sharings that need to be added
		newShareeIds = rightDiff(
			[sharings, (sharing) => sharing.userId],
			[shareWithIds, (shareeId) => shareeId],
		);

		if (newShareeIds.length) {
			await EEWorkflows.share(trx, workflow, newShareeIds);
		}
	});

	return res.status(200).send();
});