# Copyright 2026, Niquel Mendoza.
# https://www.mql5.com/es/users/nique_372
# launcher.py

import subprocess
import argparse
import os
import datetime
import time
import sys

# Construccion del archivo config
def BuildConfig(args) -> str:

    #print(f"Expert recibido: {args.expert}")
    #print(f"Expert Params recibido: {args.expert_params}")

    lines = [
        "[Common]",
        f"Login={args.login}",
        f"Server={args.server}",
        f"Password={args.password}",
        "KeepPrivate=1",
        "NewsEnable=0",
        "",
        "[Experts]",
        "AllowLiveTrading=0",
        "AllowDllImport=1",
        "Enabled=1",
        "Account=0",
        "Profile=0",
        "",
        "[StartUp]",
        f"Expert={args.expert}",
        f"Symbol={args.symbol}",
        f"Period={args.period}",
        f"ExpertParameters={args.expert_params}",
        f"Template=default",
    ]
    
    # print de las lineas
    print("\n".join(lines))

    # lo abrimos
    path = args.config_out
    with open(path, "w", encoding='utf-16', newline='\r\n') as f:
        f.write("\n".join(lines))

    return path

# Ejeuccion principal
if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--terminal_exe", type=str, required=True)  # path al terminal64.exe
    parser.add_argument("--config_out", type=str, required=True)  # donde guardar el .ini
    parser.add_argument("--login", type=str, required=True)
    parser.add_argument("--server", type=str, required=True)
    parser.add_argument("--password", type=str, required=True)
    parser.add_argument("--expert", type=str, required=True)
    parser.add_argument("--symbol", type=str, default="EURUSD")
    parser.add_argument("--period", type=str, default="M1")
    parser.add_argument("--expert_params", type=str, required=True)  
    args = parser.parse_args()

    config_path = BuildConfig(args)


    #--- Eliminar log de hoy si existe
    today = datetime.datetime.now().strftime("%Y%m%d")
    log_path : str = f"/home/leoxd/.mt5/drive_c/Program Files/MetaTrader 5/MQL5/Logs/{today}.log"

    if os.path.exists(log_path):
        os.remove(log_path)
        print(f"Log eliminado: {log_path}")
    else:
        print(f"Log no existe, nada que eliminar: {log_path}")


    #--- Correr mt5
    env = os.environ.copy()

    # env config
    env["WINEPREFIX"] = "/home/leoxd/.mt5"
    env["DISPLAY"] = ":10.0"  # Asegurado con .0
    env["WINEDEBUG"] = "-all,err+all" # Solo muestra errores críticos
    env["WINE_DRIVER"] = "x11"
    env["QT_QPA_PLATFORM"] = "xcb"
    # IMPORTANTE: Deshabilita el modo de red protegido de MetaTrader
    env["MT5_TERMINAL_DISABLE_UI_LOCK"] = "1"

    # corremos
    result = subprocess.run(["winepath", "-w", config_path],
                            capture_output=True, text=True, env=env)
    win_config_path = result.stdout.strip()

    print(f"Lanzando MT5: {args.terminal_exe}")
    
    # Lanzar proceso sin esperar a que termine
    process = subprocess.Popen(
        ["wine", args.terminal_exe, "/portable", f"/config:{win_config_path}"],
        env=env,
        stdout=sys.stdout,
        stderr=sys.stderr,
        text=True
    )

    print(f"MT5 lanzado exitosamente con PID: {process.pid}")
    print("Launcher finalizado. El monitoreo queda a cargo del reviser.")
    # No usamos .wait(), salimos inmediatamente para liberar el proceso
    sys.exit(0)