"""
agent.py — Moniteur système à déployer sur le serveur de jeux.
Collecte CPU, RAM, swap + usage par service, et push vers le bot Discord.

Lancement : python agent.py
"""

import asyncio
import time
import aiohttp
import psutil
from datetime import datetime

# ─── Configuration ────────────────────────────────────────────────────────────

BOT_API_URL = "http://localhost:8765/metrics"   # URL du bot (même machine ou réseau local)
API_SECRET  = "Mon-cul-est-tres-doux"               # Doit correspondre à config.json
PUSH_INTERVAL = 5                              # secondes entre chaque envoi

# Mots-clés pour identifier chaque service dans la liste des processus
# Clé = identifiant interne, valeurs = sous-chaînes à chercher dans le nom / cmdline
SERVICE_KEYWORDS: dict[str, list[str]] = {
    "minecraft":     ["minecraft", "paper", "spigot", "purpur", "fabric", "forge"],
    "hytale":        ["hytale"],
    "satisfactory":  ["factoryserver", "satisfactory"],
    "valheim":       ["valheim_server", "valheim"],
    "terraria":      ["terraria"],
    "ark":           ["shootergame", "ark"],
    "ollama":        ["ollama"],
    "discord_bots":  ["discord_bot", "bot.py", "main.py"],  # adapter si besoin
}

# ─── Collecte ─────────────────────────────────────────────────────────────────

def scan_services() -> dict:
    """Parcourt les processus et agrège l'usage par service."""
    buckets: dict[str, dict] = {k: {"running": False, "cpu": 0.0, "ram_mb": 0.0, "pids": []}
                                 for k in SERVICE_KEYWORDS}

    for proc in psutil.process_iter(["pid", "name", "cmdline", "cpu_percent", "memory_info", "status"]):
        try:
            name    = (proc.info["name"] or "").lower()
            cmdline = " ".join(proc.info["cmdline"] or []).lower()
            text    = name + " " + cmdline

            for svc, keywords in SERVICE_KEYWORDS.items():
                if any(kw in text for kw in keywords):
                    b = buckets[svc]
                    b["running"] = True
                    b["cpu"]    += proc.info["cpu_percent"] or 0.0
                    b["ram_mb"] += (proc.info["memory_info"].rss / 1024 / 1024) if proc.info["memory_info"] else 0.0
                    b["pids"].append(proc.info["pid"])
                    break  # un process ne compte que pour un service

        except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
            continue

    # Nettoyage : on retire les pids de la réponse (inutiles pour le bot)
    for svc in buckets:
        buckets[svc].pop("pids", None)

    return buckets


async def collect() -> dict:
    """Construit le payload complet à envoyer au bot."""
    cpu   = psutil.cpu_percent(interval=1)          # bloquant 1s — thread OK en async
    mem   = psutil.virtual_memory()
    swap  = psutil.swap_memory()
    load  = psutil.getloadavg()                     # (1m, 5m, 15m)
    temps = {}

    try:
        sensor_data = psutil.sensors_temperatures()
        if sensor_data:
            # On prend la temp CPU principale si dispo
            for key in ("coretemp", "k10temp", "cpu_thermal"):
                if key in sensor_data:
                    temps["cpu_c"] = round(sensor_data[key][0].current, 1)
                    break
    except AttributeError:
        pass  # Windows / pas de capteurs

    services = scan_services()

    return {
        "timestamp": time.time(),
        "api_key":   API_SECRET,
        "system": {
            "cpu_percent":  round(cpu, 1),
            "cpu_count":    psutil.cpu_count(logical=True),
            "load_avg_1m":  round(load[0], 2),
            "load_avg_5m":  round(load[1], 2),
            "load_avg_15m": round(load[2], 2),
            "ram_total_gb": round(mem.total / 1024**3, 2),
            "ram_used_gb":  round(mem.used  / 1024**3, 2),
            "ram_percent":  mem.percent,
            "swap_total_gb": round(swap.total / 1024**3, 2),
            "swap_used_gb":  round(swap.used  / 1024**3, 2),
            "swap_percent":  swap.percent,
            **temps,
        },
        "services": services,
    }

# ─── Boucle principale ────────────────────────────────────────────────────────

async def run():
    # Premier appel cpu_percent sans intervalle pour initialiser le compteur
    psutil.cpu_percent(interval=None)
    await asyncio.sleep(0.5)

    print(f"[Agent] Démarrage — push vers {BOT_API_URL} toutes les {PUSH_INTERVAL}s")

    async with aiohttp.ClientSession() as session:
        while True:
            try:
                payload = await collect()
                async with session.post(
                    BOT_API_URL,
                    json=payload,
                    timeout=aiohttp.ClientTimeout(total=8)
                ) as resp:
                    status_str = "✓" if resp.status == 200 else f"✗ HTTP {resp.status}"
                    ts = datetime.now().strftime("%H:%M:%S")
                    print(f"[{ts}] CPU={payload['system']['cpu_percent']}% "
                          f"RAM={payload['system']['ram_percent']}%  →  {status_str}")

            except aiohttp.ClientConnectorError:
                print(f"[{datetime.now().strftime('%H:%M:%S')}] ✗ Impossible de joindre le bot — il est lancé ?")
            except Exception as exc:
                print(f"[{datetime.now().strftime('%H:%M:%S')}] ✗ Erreur inattendue : {exc}")

            await asyncio.sleep(PUSH_INTERVAL)


if __name__ == "__main__":
    asyncio.run(run())