;; ASCII art effect - render as text characters (music reactive)
;; Usage: python3 plan.py effects/ascii_art.sexp | python3 execute.py - -d . -o - | mpv --fs -
;;
;; Parameters:
;;   color_mode: coloring mode ("color", "green", "white", default: "color")
;;   char_size is bound to energy (wobbles with overall loudness)

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

  (effect ascii_art :path "sexp_effects/effects/ascii_art.sexp")
  (analyzer energy :path "../artdag-analyzers/energy/analyzer.py")

  ;; Default parameter
  (def color_mode "color")

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

  (def clip (-> video (segment :start 0 :duration 10)))
  ;; Audio from 60s where it's louder
  (def audio-clip (-> audio (segment :start 60 :duration 10)))

  ;; Analyze just the audio clip - times are 0-10s relative to clip
  (def energy-data (-> audio-clip (analyze energy)))

  ;; char_size bound to energy - no offset needed since analysis is on clip
  (def result (-> clip
    (effect ascii_art
      :char_size (bind energy-data values :range [2 32])
      :color_mode color_mode)))

  (mux result audio-clip))