import { PermissionAreas } from '#shared/helpers.ts';

const byteLength = async (key: string): Promise<number> => {
    const value = await useStorage().getItemRaw(key);
    try {
        return Buffer.byteLength(value);
    } catch (error) {
        return 0;
    }
};

export default defineEventHandler(async (event) => {
    const { isGranted } = await useAuthentication(event);
    if (!isGranted(PermissionAreas.Code)) {
        throw createError({
            status: 401,
            statusMessage: 'Unauthorised',
        });
    }

    const keys = (await useStorage().getKeys())
        .filter((key) => !key.startsWith('build') && !key.startsWith('root') && !key.startsWith('src'))
        .toSorted();
    return Object.fromEntries(await Promise.all(keys.map(async (key): Promise<[string, number]> => {
        const meta = await useStorage().getMeta(key);
        return [key, typeof meta.size === 'number' ? meta.size : await byteLength(key)] as const;
    })));
});