bb.edn

{
 :tasks
 {get-input
  {:doc "Download input file for Advent of Code puzzle. Defaults to current year/day."
   :task (let [config (clojure.edn/read-string (slurp ".env.edn"))
               today (java.time.LocalDate/now)
               year (or (first *command-line-args*) (.getYear today))
               day (or (second *command-line-args*) (.getDayOfMonth today))
               token (:aoc-token config)
               url (format "https://adventofcode.com/%s/day/%s/input" year day)
               input-dir (format "inputs/%s" year)
               input-file (format "%s/%02d.input" input-dir day)]
           (when-not (.exists (java.io.File. input-dir))
             (.mkdirs (java.io.File. input-dir)))
           (spit input-file
                 (:body
                  (babashka.http-client/get
                   url
                   {:headers {"Cookie" (str "session=" token)}})))
           (println "Downloaded" input-file))}}}