# LED
from driver_led import APA102

# BOUTON
import RPi.GPIO as GPIO
import time

# STT
import subprocess, json, vosk

# ALLY + TTS (Piper)
import requests, urllib3
import numpy as np
import sounddevice as sd
from piper.voice import PiperVoice
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

import signal
import sys

# INIT LED
num_leds = 12
led = APA102(num_led=num_leds)

def set_couleur(c):
    couleurs = {
        'R': (255, 0, 0),      # Rouge
        'V': (0, 255, 0),      # Vert
        'B': (0, 0, 255),      # Bleu
        'J': (255, 255, 0),    # Jaune
        'VI': (128, 0, 128),   # Violet
        'RO': (255, 105, 180), # Rose
        'O': (255, 165, 0)     # Orange
    }
    rgb = couleurs.get(c.upper(), (0, 0, 0))
    for i in range(num_leds):
        led.set_pixel(i, *rgb)
    led.show()

def eteindre_led():
    set_couleur("")

def cleanup_led():
    led.cleanup()

def animation_balayer():
    rgb = (255, 105, 180)  # Rose
    for _ in range(2):
        for i in range(num_leds):
            led.set_pixel(i, *rgb)
            led.show()
            time.sleep(0.05)
            led.set_pixel(i, 0, 0, 0)
    led.show()

def cligno_rouge():
    for _ in range(3):
        set_couleur('R'); time.sleep(0.3)
        eteindre_led(); time.sleep(0.3)

def cligno_jaune():
    for _ in range(2):
        set_couleur('J'); time.sleep(0.5)
        eteindre_led(); time.sleep(0.5)

# BOUTON
BUTTON = 17
GPIO.setmode(GPIO.BCM)
GPIO.setup(BUTTON, GPIO.IN)
etat = {'mute': False}

def toggle_mute(ch):
    etat['mute'] = not etat['mute']
    set_couleur('VI' if etat['mute'] else 'O')

GPIO.add_event_detect(BUTTON, GPIO.FALLING,
                      callback=toggle_mute, bouncetime=300)

# STT setup
model = vosk.Model("vosk-model/vosk-model-small-fr-0.22")
rec = vosk.KaldiRecognizer(model, 16000)

arec_cmd = ["arecord", "-f", "S16_LE", "-c", "2", "-r", "16000", "-D", "hw:1", "-B", "200000"]
arec = subprocess.Popen(arec_cmd, stdout=subprocess.PIPE)
ffmp = subprocess.Popen([
    "ffmpeg", "-loglevel", "quiet", "-fflags", "+nobuffer",
    "-flags", "low_delay", "-i", "pipe:0", "-ac", "1", "-ar", "16000",
    "-f", "s16le", "pipe:1"
], stdin=arec.stdout, stdout=subprocess.PIPE)

# Ally API
url_ally = "https://192.168.1.12:8000/mic"
def ally(text):
    try:
        r = requests.post(url_ally, data={"texto": text}, verify=False)
        if r.status_code == 200:
            return r.json().get("ora", "")
        else:
            print("HTTP Ally error", r.status_code)
            return ""
    except Exception as e:
        print("Ally exception", e)
        return ""

# Piper TTS
voice = PiperVoice.load("/data/piper_model/fr_FR-siwis-low.onnx")
sd_stream = sd.OutputStream(samplerate=voice.config.sample_rate,
                            channels=1, dtype='int16')
sd_stream.start()

def piper_talk(text):
    for chunk in voice.synthesize_stream_raw(text):
        sd_stream.write(np.frombuffer(chunk, dtype=np.int16))


##EXIT

def handle_exit(sig, frame):
    eteindre_led()
    cleanup_led()
    GPIO.cleanup()
    sd_stream.stop()
    sys.exit(0)


# MAIN LOOP
try:
    set_couleur('O'); time.sleep(0.5)

    while True:
        signal.signal(signal.SIGINT, handle_exit)   # Ctrl+C
        signal.signal(signal.SIGTERM, handle_exit)  # kill

        if etat['mute']:
            time.sleep(0.05)
            continue

        set_couleur('B')  # Bleu : écoute
        data = ffmp.stdout.read(4000)
        if not data: break

        if rec.AcceptWaveform(data):
            txt = json.loads(rec.Result()).get("text", "")
            if txt:
#                print("Q>", txt)
                cligno_jaune()  # Réfléchit
                resp = ally(txt)
#                print("R>", resp)
                if resp:
                    animation_balayer()  # Rose balayage = TTS
                    piper_talk(resp)
                else:
                    cligno_rouge()
                time.sleep(0.3)



except KeyboardInterrupt:
    eteindre_led()
    cleanup_led()
    GPIO.cleanup()
    sd_stream.stop()