import os
import subprocess
import sys
import logging
from logging.handlers import RotatingFileHandler
from datetime import datetime
import threading
import time

# ─────────────── UTF-8 Windows ───────────────
if os.name == 'nt':
    import ctypes
    ctypes.windll.kernel32.SetConsoleCP(65001)
    ctypes.windll.kernel32.SetConsoleOutputCP(65001)

# ─────────────── Répertoires de logs ───────────────
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
LOG_DIR = os.path.join(BASE_DIR, "logs")
os.makedirs(LOG_DIR, exist_ok=True)

# ─────────────── Logger central ───────────────
central_logger = logging.getLogger("Holokia")
central_logger.setLevel(logging.INFO)

console_handler = logging.StreamHandler(sys.stdout)
console_handler.setFormatter(logging.Formatter("%(asctime)s - %(levelname)s - %(message)s"))

central_file_handler = RotatingFileHandler(
    os.path.join(LOG_DIR, "holokia.log"),
    maxBytes=5*1024*1024,
    backupCount=5,
    encoding="utf-8"
)
central_file_handler.setFormatter(logging.Formatter("%(asctime)s - %(levelname)s - %(message)s"))

central_logger.addHandler(console_handler)
central_logger.addHandler(central_file_handler)

central_logger.info("🚀 Démarrage de tous les services Holokia Avatar")
central_logger.info(f"📅 Date: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")

# ─────────────── Services ───────────────
SERVICES = {
    "TTS": {"script": "services/tts_service.py", "port": 5000, "prefix": "[TTS]"},
    "STT": {"script": "services/stt_service.py", "port": 5001, "prefix": "[STT]"},
    "LLM": {"script": "services/llm_service.py", "port": 5002, "prefix": "[LLM]"},
    "LiveStream": {"script": "services/live_stream_service.py", "port": 5003, "prefix": "[Live]"},
    # "Backend": {"script": os.path.join(BASE_DIR, "app/main.py"), "port": int(os.getenv("PORT", 8000)), "prefix": "[Backend]"}
}

processes = {}

# ─────────────── Fonction pour créer un logger par service ───────────────
def create_service_logger(name):
    logger = logging.getLogger(name)
    logger.setLevel(logging.INFO)
    
    file_handler = RotatingFileHandler(
        os.path.join(LOG_DIR, f"{name}.log"),
        maxBytes=5*1024*1024,
        backupCount=3,
        encoding="utf-8"
    )
    file_handler.setFormatter(logging.Formatter("%(asctime)s - %(levelname)s - %(message)s"))
    
    # Eviter d'ajouter plusieurs handlers si déjà créé
    if not logger.handlers:
        logger.addHandler(console_handler)
        logger.addHandler(file_handler)
    
    return logger

# ─────────────── Démarrer un service ───────────────
def start_service(name, info):
    prefix = info["prefix"]
    port = info["port"]
    script = info["script"]
    
    service_logger = create_service_logger(name)
    
    # Ajuster PYTHONPATH
    #env = os.environ.copy()
    #env["PYTHONPATH"] = f"{BASE_DIR};{os.path.dirname(script)};{env.get('PYTHONPATH','')}"
    
    service_logger.info(f"{prefix} 🚀 Démarrage du service sur le port {port} ...")
    
    proc = subprocess.Popen(
        [sys.executable, script],
        stdout=sys.stdout,
        stderr=sys.stderr,
        bufsize=1,
        universal_newlines=True,
        #env=env
    )
    
    # Les logs des services apparaîtront directement dans stdout
    
    return proc

# ─────────────── Lancement de tous les services ───────────────
for name, info in SERVICES.items():
    proc = start_service(name, info)
    processes[name] = proc

central_logger.info("⚙️ Tous les services ont été lancés. Ctrl+C pour arrêter.")

# ─────────────── Boucle de surveillance ───────────────
try:
    while True:
        for name, proc in list(processes.items()):
            ret = proc.poll()
            if ret is not None:
                central_logger.error(f"{SERVICES[name]['prefix']} ❌ Service arrêté ! Code: {ret}")
                proc_new = start_service(name, SERVICES[name])
                processes[name] = proc_new
        time.sleep(2)
except KeyboardInterrupt:
    central_logger.info("⏹ Arrêt de tous les services...")
    for name, proc in processes.items():
        proc.terminate()
    central_logger.info("✅ Tous les services ont été arrêtés.")