import { Observable, of } from 'rxjs';

import { ResolvedPath } from './PageRouter';
import { pathToImport } from './paths';
import { NOT_FOUND_PATH, UNKNOWN_CHUNK } from './vars';

export function fileSystemResolver(pathname: string, pages: string[]): Observable<ResolvedPath> {
    const m = pathToImport(pages, pathname);
    if (m && m.filepath) {
        return of({
            pathname,
            pageName: m.filepath.raw,
            chunkName: m.chunkName || UNKNOWN_CHUNK,
            id: -1,
        });
    }
    return of({
        pathname,
        pageName: NOT_FOUND_PATH,
        chunkName: UNKNOWN_CHUNK,
        id: -1,
    });
}