import { error, redirect } from '@sveltejs/kit';
import { env } from '$env/dynamic/private';
import { parseBackendError, getErrorMessage } from '$lib/errors';

export async function load({ params, fetch }) {
    const { id } = params;
    const baseUrl = env.API_INTERNAL_URL || 'http://localhost:8080';

    try {
        const res = await fetch(`${baseUrl}/api/documents/${id}`);

        if (res.status === 401) throw redirect(302, '/login');

        if (!res.ok) {
            const backendError = await parseBackendError(res);
            throw error(res.status, getErrorMessage(backendError?.code));
        }

        return { document: await res.json() };
    } catch (e) {
        if (e.status) throw e;
        throw error(500, getErrorMessage('INTERNAL_ERROR'));
    }
}