import path from "path";
import AppNames from "./grab-app-names";
import checkExcludedPatterns from "./check-excluded-patterns";
import grabDirNames from "./grab-dir-names";
/**
 * Whether a file matched by the FileSystemRouter is actually a page.
 *
 * `Bun.FileSystemRouter` routes every file under `src/pages`, including
 * ones the bundler never builds: `.server.ts` companions, the `__root`
 * layout, tests, and paths excluded by `pages_exclude_patterns` (or inside
 * an excluded directory). Requests for those must 404 rather than wait for
 * a bundle that will never exist. Mirrors the rules in `grabAllPages`.
 */
export default function isRoutablePage(file_path) {
    const { PAGES_DIR } = grabDirNames();
    const file_name = path.basename(file_path);
    if (/\.server\.(t|j)sx?$/.test(file_name))
        return false;
    if (/\.test\.(t|j)sx?$/.test(file_name))
        return false;
    if (/__tests__/.test(file_path))
        return false;
    if (file_name.match(new RegExp(AppNames["RootPagesComponentName"]))) {
        return false;
    }
    // grabAllPages skips an excluded directory without looking inside it,
    // so check every directory between PAGES_DIR and the file as well.
    const relative = path.relative(PAGES_DIR, file_path);
    if (relative.startsWith("..") || path.isAbsolute(relative)) {
        return !checkExcludedPatterns({ path: file_path });
    }
    let current = PAGES_DIR;
    for (const segment of relative.split(path.sep)) {
        current = path.join(current, segment);
        if (checkExcludedPatterns({ path: current }))
            return false;
    }
    return true;
}