import { json, error } from '@sveltejs/kit';
import type { RequestHandler } from './$types';
import { sql } from '$lib/server/db';

/** GET /api/notes/:noteId — Hent notat */
export const GET: RequestHandler = async ({ params, locals }) => {
	if (!locals.workspace || !locals.user) error(401);

	const [note] = await sql`
		SELECT n.id, n.title, n.content, n.updated_at
		FROM notes n
		JOIN nodes nd ON nd.id = n.id
		WHERE n.id = ${params.noteId} AND nd.workspace_id = ${locals.workspace.id}
	`;
	if (!note) error(404, 'Notat ikke funnet');

	return json(note);
};

/** PATCH /api/notes/:noteId — Oppdater notat */
export const PATCH: RequestHandler = async ({ params, request, locals }) => {
	if (!locals.workspace || !locals.user) error(401);

	const updates = await request.json();

	const [note] = await sql`
		SELECT n.id FROM notes n
		JOIN nodes nd ON nd.id = n.id
		WHERE n.id = ${params.noteId} AND nd.workspace_id = ${locals.workspace.id}
	`;
	if (!note) error(404, 'Notat ikke funnet');

	const [updated] = await sql`
		UPDATE notes SET
			title = COALESCE(${updates.title ?? null}, title),
			content = CASE WHEN ${updates.content !== undefined} THEN ${updates.content ?? ''} ELSE content END
		WHERE id = ${params.noteId}
		RETURNING id, title, content, updated_at
	`;

	return json(updated);
};