;; Parametric Effect Test
;; Demonstrates using command-line parameters for effect values
;;
;; Usage:
;;   python3 plan.py recipe-parametric.sexp -p strength=3 -p amount=50 | python3 execute.py - -d . -o output.mp4
;;
;; Parameters (with defaults):
;;   strength - swirl strength (default: 2)
;;   amount   - brightness amount (default: 0)

(recipe "parametric-test"
  :version "1.0"
  :encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)

  ;; Effects
  (effect swirl :path "sexp_effects/effects/swirl.sexp")
  (effect brightness :path "sexp_effects/effects/brightness.sexp")

  ;; Source
  (def video (source :path "monday.webm"))
  (def audio (source :path "dizzy.mp3"))

  ;; 10 second segments
  (def clip (-> video (segment :start 0 :duration 10)))
  (def audio-clip (-> audio (segment :start 0 :duration 10)))

  ;; Apply effects with parameters (passed via -p flag)
  ;; Parameters are injected as bindings before compilation
  (def result (-> clip
    (effect swirl :strength strength)
    (effect brightness :amount amount)))

  (mux result audio-clip))