import pyttsx3
import subprocess
import threading
import pydub
import ffmpeg
from time import sleep
from threading import Thread


# VARIABLES
beat_to_play = 'beat.mp3'
slowdown_rate = 35 # higher value means slower speech... keep it between ~50 and 0 depending on how fast the beat is.
intro = 24 #amount in seconds it takes from the start of the beat to when the rapping should begin... how many seconds the AI waits to start rapping.
lyricfile = 'bino_rap1.txt'

def play_mp3(path):
    subprocess.Popen([pydub, '-q', path]).wait()


engine = pyttsx3.init()

def letters(input):
    valids = []
    for character in input:
        if character.isalpha() or character == "," or character == "'" or character == " ":
            valids.append(character)
    return ''.join(valids)

lyrics = open(lyricfile).read().split("\n") #this reads lines from a file called 'neural_rap.txt'
#print lyrics
rate = engine.getProperty('rate')
engine.setProperty('rate', 'rate - slowdown_rate')
voices = engine.getProperty('voices')

wholesong = ""
for i in lyrics:
    wholesong += i + " ... "


def sing():
    for line in wholesong.split(" ... "):
        if line == "..." or line == "":
            for i in range(18):
                engine.say("    ")
        else:
            engine.say(str(line))
    engine.runAndWait()

def beat():
    play_mp3(beat_to_play)


Thread(target=beat).start()
sleep(intro) # just waits a little bit to start talking
Thread(target=sing).start()