import os
import subprocess
import sys
import re
from pathlib import Path

ROOT = Path(__file__).resolve().parent
PYTHON_PATH = (ROOT.parent / ".venv" / "Scripts" / "python.exe").resolve()
PID_FILE = ROOT / "mcps.pid"

# Rutas relativas de scripts (no es necesario configurar puertos)
scripts = [
    "../domains/Llms/MCPs/McpServers/server_files.py",
    "../domains/Llms/MCPs/McpServers/server_math.py",
    "../domains/Llms/MCPs/McpServers/server_utils.py"
]

print("🚀 Iniciando scripts MCP con entorno virtual...")

# Verificar intérprete Python
if not PYTHON_PATH.exists():
    print(f"❌ No se encontró Python en: {PYTHON_PATH}")
    sys.exit(1)

# Limpiar archivo de PIDs previo
if PID_FILE.exists():
    PID_FILE.unlink()

# Expresión regular para capturar la URL de uvicorn
URL_REGEX = re.compile(r"Uvicorn running on (?P<url>http://[^\s]+)")

# Lanzar cada script y detectar su URL
for relative_path in scripts:
    script_path = (ROOT / relative_path).resolve()

    if not script_path.exists():
        print(f"⚠ Script no encontrado: {script_path}")
        continue

    try:
        proc = subprocess.Popen(
            [str(PYTHON_PATH), str(script_path)],
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT,
            text=True
        )

        # Leer la salida para encontrar la URL
        url = None
        for line in proc.stdout:
            match = URL_REGEX.search(line)
            if match:
                url = match.group("url")
                break

        # Guardar el PID
        with open(PID_FILE, "a", encoding="utf-8") as f:
            f.write(str(proc.pid) + "\n")

        print(f"→ {relative_path} lanzado con PID {proc.pid}")
        if url:
            print(f"   🛰️  Servidor accesible en: {url}")
        else:
            print("   ⚠ No se detectó URL del servidor.")

    except Exception as e:
        print(f"❌ Error al lanzar {relative_path}:\n{e}")

print("✅ Todos los scripts han sido procesados. PIDs guardados en mcps.pid.")