import subprocess
import os

piper_model_path = os.getenv("PIPER_MODEL_PATH")
piper_model_json_path = os.getenv("PIPER_MODEL_JSON_PATH")

def speak(text):
    
    # some text cleanup
    illegal_chars = ["\n", "\r", "\t", "", "*", "`", "[", "]", "{", "}", "\"", "\'"]
    for char in illegal_chars:
        text = text.replace(char, "")

    #remove emojis
    text = text.encode('ascii', 'ignore').decode('ascii')
    
    command = f"echo \"{text}. \" | piper -q -m {piper_model_path} -c {piper_model_json_path} --output-raw | aplay -q -r 22050 -f S16_LE -t raw -"
    process = subprocess.run(command, shell=True, check=True)

if __name__ == "__main__":
    speak("Hello, world. This is a tts test.")