import { type Actions, error, fail, redirect } from '@sveltejs/kit';
import type { PageServerLoad } from './$types';
import { editApplication, getEditApplicationPageData } from '$lib/db/index.server';
import { getUserPerms } from '$lib/index.server';
import { PERMISSIONS } from '$lib/consts';
import type { Application } from '$lib/types';

export const load: PageServerLoad = async ({ url, cookies }) => {
	if (!url.searchParams.has('id')) {
		error(400, 'Missing required parameter: id');
	}

	// Permission check (apply perm)
	const id = parseInt(url.searchParams.get('id')!);
	const perms = getUserPerms(cookies);
	if (perms >= 0 && (perms & PERMISSIONS.APPLY_FOR_JOBS) > 0) {
		return await getEditApplicationPageData(id);
	}
	error(403, 'Unauthorized');
};

export const actions: Actions = {
	// Application submission
	submit: async ({ request, cookies, url }) => {
		// Permission check (apply perm)
		if (!((getUserPerms(cookies) & PERMISSIONS.APPLY_FOR_JOBS) > 0)) {
			return fail(403, { errorMessage: 'Unauthorized' });
		}

		const data = await request.formData();
		const candidateStatement = data.get('candidateStatement')?.toString().trim();

		// Statement data validation
		if (!candidateStatement || candidateStatement === '') {
			return fail(400, { errorMessage: 'Candidate statement is required' });
		}

		// Push to DB and redirect
		if (!url.searchParams.has('id')) {
			error(400, 'Missing required parameter: id');
		}
		const id: number = parseInt(url.searchParams.get('id')!);

		await editApplication(<Application>{ id, candidateStatement });
		redirect(301, `/postings`);
	}
};