"""
start_consumers.py — Lance les 3 consumers CommandFlow dans des fenêtres séparées.

Fonctionne sur Windows, macOS et Linux sans dépendance externe.

Usage :
    uv run python start_consumers.py
"""
import subprocess
import sys
import os
import platform

BASE_DIR = os.path.dirname(os.path.abspath(__file__))

CONSUMERS = [
    ("payment_service",   "payment_service/consumer.py"),
    ("kitchen_service",   "kitchen_service/consumer.py"),
    ("notif_service",     "notif_service/consumer.py"),
    ("analytics_service", "analytics_service/consumer.py"),
]


def open_in_new_terminal(title: str, script_path: str) -> None:
    """Ouvre le script dans une nouvelle fenêtre de terminal, selon l'OS."""
    uv = "uv"
    cmd = f"uv run python {script_path}"
    system = platform.system()

    if system == "Windows":
        # start /WAIT ouvre une nouvelle fenêtre cmd et la garde ouverte
        subprocess.Popen(
            ["cmd", "/c", "start", f'"{title}"', "cmd", "/k", cmd],
            cwd=BASE_DIR,
            shell=False,
        )

    elif system == "Darwin":  # macOS
        # osascript pilote Terminal.app
        apple_script = (
            f'tell application "Terminal" to activate\n'
            f'tell application "Terminal" to do script '
            f'"cd \\"{BASE_DIR}\\" && echo \'=== {title} ===' + "'" +
            f' && {cmd}"'
        )
        subprocess.Popen(["osascript", "-e", apple_script])

    else:  # Linux
        # Essaie gnome-terminal, puis xterm en fallback
        if _cmd_exists("gnome-terminal"):
            subprocess.Popen(
                ["gnome-terminal", f"--title={title}", "--",
                 "bash", "-c", f"cd '{BASE_DIR}' && {cmd}; exec bash"],
            )
        elif _cmd_exists("xterm"):
            subprocess.Popen(
                ["xterm", "-title", title, "-e",
                 f"cd '{BASE_DIR}' && {cmd}; exec bash"],
            )
        else:
            print(f"  ⚠  Impossible d'ouvrir un terminal pour {title}.")
            print(f"     Lance manuellement : {cmd}")


def _cmd_exists(name: str) -> bool:
    import shutil
    return shutil.which(name) is not None


def main():
    print()
    print("╔══════════════════════════════════════╗")
    print("║   CommandFlow — démarrage consumers  ║")
    print(f"║   OS détecté : {platform.system():<23}║")
    print("╚══════════════════════════════════════╝")
    print()

    for title, script in CONSUMERS:
        open_in_new_terminal(title, script)
        print(f"  ✓ {title}")

    print()
    print("  Consumers actifs. Lance le seed :")
    print("  uv run python seed.py --delay 1.5")
    print()


if __name__ == "__main__":
    main()