#! /usr/bin/env bb

; A utility to listen to your ebooks using TTS programs

(require '[clojure.java.io :as io]
         '[clojure.string :refer [split]]
         '[lib :refer [run-cmd extract-file-from-zip unixify]])

;; TODO Check if all required utilities are installed

;; TODO Allow voice selection
(println "Selected voice is Samantha")

;; TODO Use festival-tts or say depending on OS

(defn- convert
  [book-file]
  (let [title (first (split book-file #"\."))
        txtz-file (str title ".txtz")
        txt-file (str title ".txt")
        aiff-file (str title ".aiff")
        mp3-file (str title ".mp3")]
    (println "Converting to text...")
    (run-cmd ["ebook-convert" book-file txtz-file])
    (extract-file-from-zip txtz-file "index.txt" txt-file)
    (println "Converting text to audio. Don't hold your breath!")
    (run-cmd ["say" "-f" txt-file "-o" aiff-file])
    (println "Creating mp3 file...")
    (run-cmd ["ffmpeg" "-i" aiff-file mp3-file])
    (println "Cleaning up...")
    (run! io/delete-file [txtz-file txt-file aiff-file])
    (println (str "Done! Check out " mp3-file))))

(unixify convert)