/**
 * TIA-∞ Ecosystem Scanner
 * Walks the QGTNL directory, maps structure, identifies modules,
 * and prepares a non-destructive report for Guided Builder mode.
 */

import * as fs from "fs";
import * as path from "path";

export interface ScanResult {
  path: string;
  type: "file" | "directory";
  size: number;
  children?: ScanResult[];
}

export function scanDirectory(targetPath: string): ScanResult {
  const stats = fs.statSync(targetPath);

  if (stats.isFile()) {
    return {
      path: targetPath,
      type: "file",
      size: stats.size,
    };
  }

  const children = fs.readdirSync(targetPath).map((child) => {
    const childPath = path.join(targetPath, child);
    return scanDirectory(childPath);
  });

  return {
    path: targetPath,
    type: "directory",
    size: stats.size,
    children,
  };
}

export function scanQGTNL() {
  const root = "/data/data/com.termux/files/home/QGTNL";

  if (!fs.existsSync(root)) {
    return {
      status: "error",
      message: "QGTNL root not found.",
    };
  }

  const structure = scanDirectory(root);

  return {
    status: "ok",
    scannedAt: Date.now(),
    structure,
  };
}