import fs from "fs";
import path from "path";

export namespace FileRetriever {
  export const directory =
    (name: string) =>
    (dir: string, depth: number = 0): string | null => {
      const location: string = path.join(dir, name);
      if (fs.existsSync(location)) return dir;
      else if (depth > 2) return null;
      return directory(name)(path.join(dir, ".."), depth + 1);
    };

  export const file =
    (name: string) =>
    (directory: string, depth: number = 0): string | null => {
      const location: string = path.join(directory, name);
      if (fs.existsSync(location)) return location;
      else if (depth > 2) return null;
      return file(name)(path.join(directory, ".."), depth + 1);
    };
}