import os
import json
import re
import shutil
import socket
import hashlib
import subprocess
import threading
import time
import sys
import signal
import logging
import requests
# import dns_fix
import psutil
from flask import Flask, send_from_directory, request, jsonify, redirect, session
from werkzeug.security import generate_password_hash, check_password_hash
from werkzeug.middleware.proxy_fix import ProxyFix
from functools import wraps
from collections import defaultdict
ai_client = None
def get_ai_client():
    global ai_client
    if ai_client is not None:
        return ai_client
    try:
        from ollamafreeapi import OllamaFreeAPI
        ai_client = OllamaFreeAPI()
        return ai_client
    except Exception:
        return None

logging.basicConfig(
    level=logging.INFO,
    format='[%(asctime)s] %(levelname)s: %(message)s',
    datefmt='%Y-%m-%d %H:%M:%S'
)
logger = logging.getLogger('hostbot')

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

USERS_ROOT = os.path.join(BASE_DIR, "USERS")
DATA_DIR = os.path.join(BASE_DIR, "DATA")
USERS_DB = os.path.join(DATA_DIR, "users.json")

os.makedirs(USERS_ROOT, exist_ok=True)
os.makedirs(DATA_DIR, exist_ok=True)

app = Flask(__name__)
app.wsgi_app = ProxyFix(app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_prefix=1)
app.secret_key = os.environ.get("PANEL_SECRET_KEY") or os.urandom(24)
app.config.update(
    SESSION_COOKIE_HTTPONLY=True,
    SESSION_COOKIE_SAMESITE='Strict',
    SESSION_COOKIE_SECURE=True,
    PERMANENT_SESSION_LIFETIME=604800,
    MAX_CONTENT_LENGTH=50 * 1024 * 1024
)

_rate_store = defaultdict(list)
_rate_lock = threading.Lock()
RATE_LIMIT = 120
RATE_WINDOW = 60


def rate_limited(fn):
    @wraps(fn)
    def wrapper(*args, **kwargs):
        ip = request.remote_addr or '0.0.0.0'
        now = time.time()
        with _rate_lock:
            _rate_store[ip] = [t for t in _rate_store[ip] if now - t < RATE_WINDOW]
            if len(_rate_store[ip]) >= RATE_LIMIT:
                return jsonify({"success": False, "message": "Rate limit exceeded"}), 429
            _rate_store[ip].append(now)
        return fn(*args, **kwargs)
    return wrapper

@app.after_request
def add_security_headers(response):
    response.headers['X-Content-Type-Options'] = 'nosniff'
    response.headers['X-XSS-Protection'] = '1; mode=block'
    response.headers['X-Frame-Options'] = 'DENY'
    response.headers['Strict-Transport-Security'] = 'max-age=31536000; includeSubDomains'
    response.headers['Content-Security-Policy'] = "default-src 'self' 'unsafe-inline' 'unsafe-eval' https://fonts.googleapis.com https://fonts.gstatic.com https://f.top4top.io; object-src 'none';"
    response.headers['Referrer-Policy'] = 'strict-origin-when-downgrade'
    return response

ADMIN_USERNAME = os.environ.get("ADMIN_USER", "moh777")
# If the environment variable is not set, we use the default password, 
# but it's better to store a hash or use a secret key.
# For maximum privacy, we will allow the admin password to be an environment variable.
ADMIN_PASSWORD = os.environ.get("ADMIN_PASS", "Mm@123456")

MAX_PROCESS_MEMORY_MB = int(os.environ.get("MAX_PROC_MEM_MB", 512))
MAX_LOG_SIZE = 2 * 1024 * 1024

running_procs = {}
server_states = {}
lock = threading.Lock()


def get_ip():
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        s.connect(("10.255.255.255", 1))
        ip = s.getsockname()[0]
        s.close()
        return ip
    except Exception:
        return "127.0.0.1"


def sanitize_folder_name(name: str) -> str:
    name = (name or "").strip()
    name = re.sub(r"\s+", "-", name)
    name = re.sub(r"[^A-Za-z0-9\-_\.]", "", name)
    return name[:200]


def safe_name(name: str) -> str:
    name = (name or "").strip()
    name = re.sub(r"[\\/]+", "", name)
    name = re.sub(r"[^A-Za-z0-9\-_\. ]", "", name)
    return name[:200].strip()


def set_state(key: str, state: str):
    with lock:
        server_states[key] = state


def get_state(key: str) -> str:
    with lock:
        return server_states.get(key, "Offline")


def log_append(key: str, text: str):
    try:
        owner, folder = parse_server_key(key, allow_admin=True)
        p = os.path.join(get_server_dir(owner, folder), "server.log")
        with open(p, "a", encoding="utf-8", errors="ignore") as f:
            f.write(text)
    except Exception:
        pass


def load_users():
    if not os.path.exists(USERS_DB):
        return {"users": []}
    try:
        with open(USERS_DB, "r", encoding="utf-8") as f:
            return json.load(f) or {"users": []}
    except Exception:
        return {"users": []}


def save_users(db):
    tmp = USERS_DB + ".tmp"
    with open(tmp, "w", encoding="utf-8") as f:
        json.dump(db, f, indent=2)
    os.replace(tmp, USERS_DB)


def find_user(db, username: str):
    u = (username or "").strip().lower()
    for x in db.get("users", []):
        if (x.get("username") or "").strip().lower() == u:
            return x
    return None


def is_admin_session():
    u = session.get("user") or {}
    return bool(u.get("is_admin"))


def current_username():
    u = session.get("user") or {}
    return (u.get("username") or "").strip()


PLANS = {
    "free": {"label": "Free Tier", "max_bots": 1, "max_mem_mb": 256, "max_disk_mb": 100},
    "pro": {"label": "Silver Tier", "max_bots": 3, "max_mem_mb": 512, "max_disk_mb": 1000},
    "enterprise": {"label": "Gold Tier", "max_bots": 10, "max_mem_mb": 1024, "max_disk_mb": 5000},
}

# --- ADS SYSTEM ---
ADS_FILE = os.path.join(DATA_DIR, "ads.json")

def load_ads():
    if not os.path.exists(ADS_FILE):
        return {"current_ad": "", "contact_link": "https://t.me/j49_c"}
    try:
        with open(ADS_FILE, "r", encoding="utf-8") as f:
            return json.load(f)
    except:
        return {"current_ad": "", "contact_link": "https://t.me/j49_c"}

def save_ads(data):
    with open(ADS_FILE, "w", encoding="utf-8") as f:
        json.dump(data, f, indent=2)

BOT_RENEW_DAYS = 4
AI_DAILY_LIMIT = 20


def get_user_plan(username: str) -> dict:
    db = load_users()
    u = find_user(db, username)
    if not u:
        return PLANS["free"]
    plan_name = u.get("plan", "free")
    return PLANS.get(plan_name, PLANS["free"])


def get_user_limit(username: str) -> int:
    if is_admin_session():
        return 999999
    plan = get_user_plan(username)
    return plan["max_bots"]


def get_user_mem_limit(username: str) -> int:
    if is_admin_session():
        return MAX_PROCESS_MEMORY_MB
    plan = get_user_plan(username)
    return plan["max_mem_mb"]


def get_user_disk_limit(username: str) -> int:
    if is_admin_session():
        return 999999
    plan = get_user_plan(username)
    return plan.get("max_disk_mb", 50)


def get_dir_size(path='.'):
    total = 0
    with os.scandir(path) as it:
        for entry in it:
            if entry.is_file() and not entry.is_symlink():
                total += entry.stat().st_size
            elif entry.is_dir() and not entry.is_symlink():
                total += get_dir_size(entry.path)
    return total


def login_required(fn):
    @wraps(fn)
    def wrapper(*args, **kwargs):
        if not session.get("user"):
            return redirect("/login")
        return fn(*args, **kwargs)
    return wrapper


def admin_required(fn):
    @wraps(fn)
    def wrapper(*args, **kwargs):
        if not session.get("user"):
            return redirect("/login")
        if not is_admin_session():
            return jsonify({"success": False, "message": "Admin only"}), 403
        return fn(*args, **kwargs)
    return wrapper


def get_user_servers_root(username: str) -> str:
    return os.path.join(USERS_ROOT, username, "servers")


def get_server_dir(owner: str, folder: str) -> str:
    return os.path.join(get_user_servers_root(owner), folder)


def ensure_user_dirs(username: str):
    os.makedirs(get_user_servers_root(username), exist_ok=True)


def parse_server_key(key: str, allow_admin: bool):
    key = (key or "").strip()

    if "::" in key:
        owner, folder = key.split("::", 1)
        owner = owner.strip()
        folder = folder.strip()

        if not allow_admin:
            raise ValueError("not allowed")

        if not is_admin_session():
            raise ValueError("forbidden")
        return owner, folder

    return current_username(), key


def can_access_key(key: str) -> bool:
    try:
        owner, folder = parse_server_key(key, allow_admin=True)
    except Exception:
        return False
    if is_admin_session():
        return True
    return owner == current_username()


def safe_join_server_path(key: str, rel_path: str = "") -> str:
    owner, folder = parse_server_key(key, allow_admin=True)

    root = os.path.abspath(get_server_dir(owner, folder))
    rel_path = (rel_path or "").replace("\\", "/").strip()
    if rel_path.startswith("/") or rel_path.startswith("~"):
        rel_path = rel_path.lstrip("/").lstrip("~")

    joined = os.path.abspath(os.path.join(root, rel_path))
    if not (joined == root or joined.startswith(root + os.sep)):
        raise ValueError("Invalid path")
    return joined


def ensure_meta(owner: str, folder: str):
    server_dir = get_server_dir(owner, folder)
    os.makedirs(server_dir, exist_ok=True)
    meta_path = os.path.join(server_dir, "meta.json")
    base = {
        "display_name": folder, 
        "startup_file": "", 
        "owner": owner, 
        "banned": False,
        "last_renewed": time.time() # Bot needs renewal every 4 days
    }
    if not os.path.exists(meta_path):
        with open(meta_path, "w", encoding="utf-8") as f:
            json.dump(base, f, indent=2)
    else:
        try:
            with open(meta_path, "r", encoding="utf-8") as f:
                m = json.load(f) or {}
        except Exception:
            m = {}
        changed = False
        for k, v in base.items():
            if k not in m:
                m[k] = v
                changed = True
        if m.get("owner") != owner:
            m["owner"] = owner
            changed = True
        if changed:
            with open(meta_path, "w", encoding="utf-8") as f:
                json.dump(m, f, indent=2)
    return meta_path


def read_meta(owner: str, folder: str):
    meta_path = ensure_meta(owner, folder)
    try:
        with open(meta_path, "r", encoding="utf-8") as f:
            return json.load(f) or {}
    except Exception:
        return {"display_name": folder, "startup_file": "", "owner": owner, "banned": False}


def write_meta(owner: str, folder: str, meta):
    meta_path = ensure_meta(owner, folder)
    with open(meta_path, "w", encoding="utf-8") as f:
        json.dump(meta, f, indent=2)


def sha256_file(path):
    h = hashlib.sha256()
    with open(path, "rb") as f:
        for chunk in iter(lambda: f.read(1024 * 1024), b""):
            h.update(chunk)
    return h.hexdigest()


def installed_file_path(owner: str, folder: str):
    return os.path.join(get_server_dir(owner, folder), ".installed")


def read_installed(owner: str, folder: str):
    p = installed_file_path(owner, folder)
    data = {"req_sha": "", "pkgs": set()}
    if not os.path.exists(p):
        return data
    try:
        with open(p, "r", encoding="utf-8", errors="ignore") as f:
            for line in f.read().splitlines():
                line = line.strip()
                if not line:
                    continue
                if line.startswith("REQ_SHA="):
                    data["req_sha"] = line.split("=", 1)[1].strip()
                else:
                    data["pkgs"].add(line)
    except Exception:
        pass
    return data


def write_installed(owner: str, folder: str, req_sha=None, add_pkgs=None):
    p = installed_file_path(owner, folder)
    cur = read_installed(owner, folder)
    if req_sha is not None:
        cur["req_sha"] = req_sha
    if add_pkgs:
        cur["pkgs"].update(add_pkgs)
    lines = []
    if cur["req_sha"]:
        lines.append(f"REQ_SHA={cur['req_sha']}")
    lines.extend(sorted(cur["pkgs"]))
    with open(p, "w", encoding="utf-8") as f:
        f.write("\n".join(lines) + ("\n" if lines else ""))


def ensure_requirements_installed(owner: str, folder: str):
    server_dir = get_server_dir(owner, folder)
    req_path = os.path.join(server_dir, "requirements.txt")
    if not os.path.exists(req_path):
        return False

    req_sha = sha256_file(req_path)
    cur = read_installed(owner, folder)
    if cur["req_sha"] == req_sha:
        return False

    log_append(f"{owner}::{folder}", "[SYSTEM] Installing requirements.txt...\n")
    try:
        subprocess.check_call([sys.executable, "-m", "pip", "install", "-r", "requirements.txt"], cwd=server_dir)
        write_installed(owner, folder, req_sha=req_sha)
        log_append(f"{owner}::{folder}", "[SYSTEM] requirements installed ✅\n")
        return True
    except subprocess.CalledProcessError as e:
        log_append(f"{owner}::{folder}", f"[SYSTEM] requirements install failed: {e}\n")
        return False


def get_subprocess_env():
    env = os.environ.copy()
    env['PYTHONUNBUFFERED'] = '1'
    env['PYTHONDONTWRITEBYTECODE'] = '1'
    return env


def start_with_autoinstall(owner: str, folder: str, startup_file: str):
    dns_fix_path = os.path.join(BASE_DIR, 'dns_fix.py')
    wrapper_code = f'''
import sys, os
sys.path.insert(0, "{BASE_DIR}")
try:
    import dns_fix
except:
    pass
import runpy, subprocess, traceback, re
script = sys.argv[1]
cwd = os.getcwd()

def append_installed(pkg):
    try:
        p = os.path.join(cwd, ".installed")
        existing = set()
        if os.path.exists(p):
            with open(p, "r", encoding="utf-8", errors="ignore") as f:
                existing = set([x.strip() for x in f.read().splitlines() if x.strip()])
        if pkg and pkg not in existing:
            with open(p, "a", encoding="utf-8") as f:
                f.write(pkg + "\\n")
    except:
        pass

def parse_missing_name(e):
    n = getattr(e, "name", None)
    if n: return n
    s = str(e)
    m = re.search(r"No module named \'([^\']+)\'", s)
    if m: return m.group(1)
    return None

while True:
    try:
        runpy.run_path(script, run_name="__main__")
        break
    except ModuleNotFoundError as e:
        pkg = parse_missing_name(e)
        if not pkg:
            traceback.print_exc()
            break
        print(f"[AUTO-INSTALL] Missing module: {{pkg}} -> installing...")
        try:
            subprocess.check_call([sys.executable, "-m", "pip", "install", pkg])
            append_installed(pkg)
            print(f"[AUTO-INSTALL] Installed: {{pkg}} -> restarting...")
            continue
        except Exception as ex:
            print(f"[AUTO-INSTALL] Failed: {{ex}}")
            traceback.print_exc()
            break
    except Exception:
        traceback.print_exc()
        break
'''
    server_dir = get_server_dir(owner, folder)
    log_path = os.path.join(server_dir, "server.log")
    log_file = open(log_path, "a", encoding="utf-8", errors="ignore")

    if startup_file.lower().endswith(".php"):
        proc = subprocess.Popen(
            ["php", startup_file],
            cwd=server_dir,
            stdout=log_file,
            stderr=log_file,
            env=get_subprocess_env(),
        )
    else:
        proc = subprocess.Popen(
            [sys.executable, "-u", "-c", wrapper_code, startup_file],
            cwd=server_dir,
            stdout=log_file,
            stderr=log_file,
            env=get_subprocess_env(),
        )
    return proc, log_file


def stop_proc(key: str):
    if key in running_procs:
        proc, logf = running_procs[key]
        try:
            p = psutil.Process(proc.pid)
            for child in p.children(recursive=True):
                child.kill()
            p.kill()
        except Exception:
            pass
        try:
            logf.close()
        except Exception:
            pass
        running_procs.pop(key, None)


@app.route("/")
def home():
    if not session.get("user"):
        return send_from_directory(BASE_DIR, "landing.html")
    return redirect("/dashboard")

@app.route("/dashboard")
@login_required
def dashboard():
    return send_from_directory(BASE_DIR, "index.html")

@app.route("/developer")
def developer_page():
    dev_url = os.environ.get("DEVELOPER_URL")
    if dev_url:
        return redirect(dev_url)
    return send_from_directory(BASE_DIR, "developer.html")

@app.route("/terms")
def terms_page():
    return send_from_directory(BASE_DIR, "terms.html")

@app.route("/privacy")
def privacy_page():
    return send_from_directory(BASE_DIR, "privacy.html")

@app.route("/features-info")
def features_page():
    return send_from_directory(BASE_DIR, "features.html")

@app.route("/docs")
def docs_page():
    return send_from_directory(BASE_DIR, "docs.html")


@app.route("/login")
def login_page():
    return send_from_directory(BASE_DIR, "login.html")


@app.route("/create")
def create_page():
    return send_from_directory(BASE_DIR, "create.html")


@app.route("/admin")
@login_required
def admin_page():
    if not is_admin_session():
        return redirect("/")
    return send_from_directory(BASE_DIR, "admin.html")


@app.route("/logout")
def logout():
    session.pop("user", None)
    return redirect("/login")


@app.route("/api/auth/login", methods=["POST"])
@rate_limited
def api_login():
    data = request.get_json(silent=True) or {}
    username = (data.get("username") or "").strip()
    password = data.get("password") or ""

    if username == ADMIN_USERNAME and password == ADMIN_PASSWORD:
        session["user"] = {"username": ADMIN_USERNAME, "is_admin": True}
        session.permanent = True
        return jsonify({"success": True, "is_admin": True})

    db = load_users()
    u = find_user(db, username)
    if not u:
        return jsonify({"success": False, "message": "Invalid username or password"}), 401
    if not u.get("active", True):
        return jsonify({"success": False, "message": "حسابك معلق أوبانتظار موافقة الإدارة (Pending/Banned)"}), 403
    if not check_password_hash(u.get("password_hash", ""), password):
        return jsonify({"success": False, "message": "Invalid username or password"}), 401

    session["user"] = {"username": u.get("username"), "is_admin": False}
    session.permanent = True
    ensure_user_dirs(u.get("username"))
    return jsonify({"success": True, "is_admin": False})


import smtplib
DISPOSABLE_DOMAINS = [
    "tempmail.com", "10minutemail.com", "guerrillamail.com", 
    "mailinator.com", "yopmail.com", "dropmail.me", "mohmal.com", 
    "maildrop.cc", "dispostable.com", "temp-mail.org", "nada.ltd"
]

def get_client_ip():
    if request.headers.get('X-Forwarded-For'):
        return request.headers.get('X-Forwarded-For').split(',')[0].strip()
    return request.remote_addr or ""

# OTP SYSTEM REMOVED


@app.route("/api/auth/register-otp", methods=["POST"])
@rate_limited
def api_register_otp():
    data = request.get_json(silent=True) or {}
    username = (data.get("username") or "").strip()
    password = data.get("password") or ""
    email = (data.get("email") or "").strip()

    # Email validation removed - site fully open
    # if not email or '@' not in email:
    #      return jsonify({"success": False, "message": "البريد الإلكتروني غير صالح"}), 400

    # Disable disposable domain check to make it easy
    # if domain in DISPOSABLE_DOMAINS:
    #      return jsonify({"success": False, "message": "عذراً، لا يتم قبول خوادم البريد الوهمية / المؤقتة."}), 400

    if len(username) < 3 or len(username) > 20:
        return jsonify({"success": False, "message": "Username must be 3-20 characters"}), 400
    if not re.match(r'^[A-Za-z0-9_]+$', username):
        return jsonify({"success": False, "message": "Username: letters, numbers, underscore only"}), 400
    if len(password) < 6:
        return jsonify({"success": False, "message": "Password must be at least 6 characters"}), 400
    if username.lower() == ADMIN_USERNAME.lower():
        return jsonify({"success": False, "message": "Username not available"}), 400

    db = load_users()
    if find_user(db, username):
        return jsonify({"success": False, "message": "Username already taken"}), 409

    # Email duplicate check removed - site fully open
    # for u in db.get("users", []):
    #     if u.get("email") == email:
    #         return jsonify({"success": False, "message": "Email already in use"}), 409

    client_ip = get_client_ip()
    new_user = {
        "username": username,
        "email": email or "no-email",
        "password_hash": generate_password_hash(password),
        "active": True,
        "plan": "free",
        "ip": client_ip,
        "created_at": time.strftime("%Y-%m-%d %H:%M:%S")
    }
    db.setdefault("users", []).append(new_user)
    save_users(db)
    logger.info(f"New user registered: {username} from IP: {client_ip}")

    session["user"] = {"username": username, "is_admin": False}
    session.permanent = True
    ensure_user_dirs(username)
    return jsonify({"success": True, "skip_otp": True, "message": "تم إنشاء حسابك بنجاح! جاري تحويلك للوحة التحكم..."}), 200


# Legacy route removed


@app.route("/api/user/profile")
@login_required
def api_user_profile():
    username = current_username()
    db = load_users()
    u = find_user(db, username)
    plan_name = "admin" if is_admin_session() else (u.get("plan", "free") if u else "free")
    plan_info = PLANS.get(plan_name, PLANS["free"])
    return jsonify({
        "success": True,
        "username": username,
        "is_admin": is_admin_session(),
        "plan": plan_name,
        "plan_label": plan_info.get("label", plan_name.title()),
        "max_bots": get_user_limit(username),
        "max_mem_mb": get_user_mem_limit(username)
    })


@app.route("/api/admin/users")
@admin_required
def api_admin_users():
    db = load_users()
    users = []
    for u in db.get("users", []):
        users.append({
            "username": u.get("username"),
            "active": u.get("active", True),
            "plan": u.get("plan", "free"),
            "created_at": u.get("created_at", "unknown")
        })
    return jsonify({"success": True, "users": users})


@app.route("/api/admin/user/set-plan", methods=["POST"])
@admin_required
def api_admin_set_plan():
    data = request.get_json(silent=True) or {}
    username = (data.get("username") or "").strip()
    plan = (data.get("plan") or "free").strip()
    if plan not in PLANS:
        return jsonify({"success": False, "message": "Invalid plan"}), 400
    db = load_users()
    u = find_user(db, username)
    if not u:
        return jsonify({"success": False, "message": "User not found"}), 404
    u["plan"] = plan
    save_users(db)
    return jsonify({"success": True})


@app.route("/api/admin/user/toggle-active", methods=["POST"])
@admin_required
def api_admin_toggle_active():
    data = request.get_json(silent=True) or {}
    username = (data.get("username") or "").strip()
    db = load_users()
    u = find_user(db, username)
    if not u:
        return jsonify({"success": False, "message": "User not found"}), 404
    u["active"] = not u.get("active", True)
    save_users(db)
    return jsonify({"success": True, "active": u["active"]})


@app.route("/api/admin/user/delete", methods=["POST"])
@admin_required
def api_admin_delete_user():
    data = request.get_json(silent=True) or {}
    username = (data.get("username") or "").strip()
    db = load_users()
    u = find_user(db, username)
    if not u:
        return jsonify({"success": False, "message": "User not found"}), 404
    db["users"] = [x for x in db.get("users", []) if (x.get("username") or "").strip().lower() != username.lower()]
    save_users(db)
    return jsonify({"success": True})


def list_all_servers_for_admin():
    servers = []
    if not os.path.isdir(USERS_ROOT):
        return servers

    for owner in sorted(os.listdir(USERS_ROOT)):
        root = get_user_servers_root(owner)
        if not os.path.isdir(root):
            continue
        for folder in sorted(os.listdir(root)):
            server_dir = get_server_dir(owner, folder)
            if not os.path.isdir(server_dir):
                continue
            meta = read_meta(owner, folder)
            banned = bool(meta.get("banned", False))
            key = f"{owner}::{folder}"
            st = "Banned" if banned else get_state(key)
            servers.append({
                "title": meta.get("display_name", folder),
                "folder": folder,
                "owner": owner,
                "key": key,
                "subtitle": f"Owner: {owner}",
                "startup_file": meta.get("startup_file", ""),
                "status": st,
                "banned": banned
            })
    return servers


def list_servers_for_user(username: str):
    ensure_user_dirs(username)
    root = get_user_servers_root(username)
    servers = []
    for folder in sorted(os.listdir(root)):
        server_dir = get_server_dir(username, folder)
        if not os.path.isdir(server_dir):
            continue
        meta = read_meta(username, folder)
        banned = bool(meta.get("banned", False))
        key = folder
        st = "Banned" if banned else get_state(key)
        servers.append({
            "title": meta.get("display_name", folder),
            "folder": folder,
            "owner": username,
            "key": key,
            "subtitle": f"Owner: {username}",
            "startup_file": meta.get("startup_file", ""),
            "status": st,
            "banned": banned
        })
    return servers


@app.route("/servers")
@login_required
def servers():
    if is_admin_session():
        return jsonify({"success": True, "servers": list_all_servers_for_admin()})
    return jsonify({"success": True, "servers": list_servers_for_user(current_username())})


@app.route("/add", methods=["POST"])
@login_required
@rate_limited
def add_server():
    data = request.get_json(silent=True) or {}
    name = (data.get("name") or "").strip()
    folder = sanitize_folder_name(name)
    if not folder:
        return jsonify({"success": False, "message": "Invalid server name"}), 400

    if is_admin_session():
        owner = current_username()
    else:
        owner = current_username()

    ensure_user_dirs(owner)

    if not is_admin_session():
        limit = get_user_limit(owner)
        existing = [d for d in os.listdir(get_user_servers_root(owner)) if os.path.isdir(get_server_dir(owner, d))]
        if len(existing) >= limit:
            return jsonify({"success": False, "message": f"لقد وصلت للحد الأقصى ({limit}). تواصل مع الدعم لزيادة السعة مجاناً."}), 403

    target = get_server_dir(owner, folder)
    if os.path.exists(target):
        return jsonify({"success": False, "message": "Server already exists"}), 409

    os.makedirs(target, exist_ok=True)
    open(os.path.join(target, "server.log"), "w", encoding="utf-8").close()

    meta = {
        "display_name": name or folder,
        "startup_file": "",
        "owner": owner,
        "banned": False
    }
    write_meta(owner, folder, meta)

    set_state(folder if not is_admin_session() else f"{owner}::{folder}", "Offline")

    if is_admin_session():
        return jsonify({"success": True, "servers": list_all_servers_for_admin()})
    return jsonify({"success": True, "servers": list_servers_for_user(owner)})


@app.route("/server/stats/<path:key>")
@login_required
def server_stats(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403

    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    if not os.path.isdir(server_dir):
        return jsonify({"status": "Offline", "cpu": "0%", "mem": "0 MB", "logs": "", "ip": get_ip()}), 404

    meta = read_meta(owner, folder)
    if meta.get("banned", False):
        set_state(key, "Banned")

    proc_tuple = running_procs.get(key)
    running = False
    cpu, mem = "0%", "0 MB"

    if proc_tuple:
        proc, _logf = proc_tuple
        if psutil.pid_exists(proc.pid):
            try:
                p = psutil.Process(proc.pid)
                if p.is_running() and p.status() != psutil.STATUS_ZOMBIE:
                    running = True
                    cpu = f"{p.cpu_percent(interval=None)}%"
                    mem = f"{p.memory_info().rss / 1024 / 1024:.1f} MB"
            except Exception:
                pass

    log_path = os.path.join(server_dir, "server.log")
    try:
        logs = open(log_path, "r", encoding="utf-8", errors="ignore").read() if os.path.exists(log_path) else ""
    except Exception:
        logs = ""

    state = get_state(key)
    if meta.get("banned", False):
        state = "Banned"
    elif running:
        state = "Running"
        set_state(key, "Running")
    elif state not in ("Installing", "Starting"):
        state = "Offline"
        set_state(key, "Offline")

    return jsonify({"status": state, "cpu": cpu, "mem": mem, "logs": logs, "ip": get_ip()})


def background_start(key: str, owner: str, folder: str, startup_file: str):
    try:
        set_state(key, "Installing")
        log_append(key, "[SYSTEM] Preparing...\n")

        ensure_requirements_installed(owner, folder)

        set_state(key, "Starting")
        log_append(key, "[SYSTEM] Starting...\n")

        proc, logf = start_with_autoinstall(owner, folder, startup_file)
        running_procs[key] = (proc, logf)

        time.sleep(1.0)
        if proc.poll() is None:
            set_state(key, "Running")
        else:
            set_state(key, "Offline")
    except Exception as e:
        log_append(key, f"[SYSTEM] Start failed: {e}\n")
        set_state(key, "Offline")


@app.route("/server/action/<path:key>/<act>", methods=["POST"])
@login_required
@rate_limited
def server_action(key, act):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403

    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    if not os.path.isdir(server_dir):
        return jsonify({"success": False, "message": "Server not found"}), 404

    meta = read_meta(owner, folder)
    if meta.get("banned", False):
        set_state(key, "Banned")
        return jsonify({"success": False, "message": "Server is banned by admin"}), 403

    # RENEWAL CHECK
    days_passed = (time.time() - meta.get("last_renewed", 0)) / (24 * 3600)
    if not is_admin_session() and days_passed > BOT_RENEW_DAYS:
        set_state(key, "Offline")
        return jsonify({"success": False, "expired": True, "message": "Bot expired. Please reactivate it from the dashboard."}), 403

    if act in ("stop", "restart"):
        stop_proc(key)
        set_state(key, "Offline")

    if act == "stop":
        return jsonify({"success": True})

    startup = meta.get("startup_file") or ""
    if not startup:
        return jsonify({"success": False, "message": "No main file set"}), 400

    open(os.path.join(server_dir, "server.log"), "w", encoding="utf-8").close()

    t = threading.Thread(target=background_start, args=(key, owner, folder, startup), daemon=True)
    t.start()
    return jsonify({"success": True})


@app.route("/server/set-startup/<path:key>", methods=["POST"])
@login_required
def set_startup(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403

    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    if not os.path.isdir(server_dir):
        return jsonify({"success": False, "message": "Server not found"}), 404

    data = request.get_json(silent=True) or {}
    f = (data.get("file") or "").strip()
    meta = read_meta(owner, folder)
    meta["startup_file"] = f
    write_meta(owner, folder, meta)
    return jsonify({"success": True})


@app.route("/server/delete/<path:key>", methods=["POST"])
@login_required
@rate_limited
def server_delete(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403
    stop_proc(key)
    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    if os.path.isdir(server_dir):
        shutil.rmtree(server_dir)
    return jsonify({"success": True})


@app.route("/files/list/<path:key>")
@login_required
def files_list(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden", "path": ""}), 403

    rel = request.args.get("path", "") or ""
    try:
        base = safe_join_server_path(key, rel)
    except Exception:
        return jsonify({"success": False, "message": "Invalid path", "path": ""}), 400

    dirs, files = [], []
    if os.path.isdir(base):
        for name in sorted(os.listdir(base), key=lambda x: (not os.path.isdir(os.path.join(base, x)), x.lower())):
            if rel == "" and name in ("meta.json", "server.log"):
                continue
            full = os.path.join(base, name)
            if os.path.isdir(full):
                dirs.append({"name": name})
            elif os.path.isfile(full):
                try:
                    size_kb = os.path.getsize(full) / 1024
                    size = f"{size_kb:.1f} KB"
                except Exception:
                    size = ""
                files.append({"name": name, "size": size})

    return jsonify({"success": True, "path": rel, "dirs": dirs, "files": files})


@app.route("/files/content/<path:key>")
@login_required
def file_content(key):
    if not can_access_key(key):
        return jsonify({"content": ""}), 403
    file_rel = request.args.get("file", "") or ""
    try:
        full = safe_join_server_path(key, file_rel)
    except Exception:
        return jsonify({"content": ""}), 400
    if os.path.isdir(full):
        return jsonify({"content": ""}), 400
    try:
        with open(full, "r", encoding="utf-8", errors="ignore") as f:
            return jsonify({"content": f.read()})
    except Exception:
        return jsonify({"content": ""})


@app.route("/files/save/<path:key>", methods=["POST"])
@login_required
@rate_limited
def file_save(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403

    data = request.get_json(silent=True) or {}
    file_rel = data.get("file", "") or ""
    content = data.get("content", "")

    try:
        full = safe_join_server_path(key, file_rel)
    except Exception:
        return jsonify({"success": False, "message": "Invalid path"}), 400

    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    
    current_size_mb = get_dir_size(server_dir) / 1024 / 1024
    disk_limit_mb = get_user_disk_limit(owner)
    
    # We estimate size based on length of content
    if current_size_mb + (len(content.encode('utf-8')) / 1024 / 1024) > disk_limit_mb:
        return jsonify({"success": False, "message": f"Disk limit exceeded ({disk_limit_mb}MB max)"}), 403

    os.makedirs(os.path.dirname(full), exist_ok=True)
    try:
        with open(full, "w", encoding="utf-8") as f:
            f.write(content)
        return jsonify({"success": True})
    except Exception as e:
        return jsonify({"success": False, "message": str(e)}), 500


@app.route("/files/mkdir/<path:key>", methods=["POST"])
@login_required
def file_mkdir(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403
    data = request.get_json(silent=True) or {}
    rel = data.get("path", "") or ""
    name = safe_name(data.get("name", ""))
    if not name:
        return jsonify({"success": False, "message": "Bad name"}), 400
    try:
        target = safe_join_server_path(key, os.path.join(rel, name))
        os.makedirs(target, exist_ok=False)
        return jsonify({"success": True})
    except FileExistsError:
        return jsonify({"success": False, "message": "Already exists"}), 409
    except Exception as e:
        return jsonify({"success": False, "message": str(e)}), 500


@app.route("/files/rename/<path:key>", methods=["POST"])
@login_required
def file_rename(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403
    data = request.get_json(silent=True) or {}
    rel = data.get("path", "") or ""
    old = safe_name(data.get("old", ""))
    new = safe_name(data.get("new", ""))
    if not old or not new:
        return jsonify({"success": False, "message": "Bad name"}), 400
    try:
        src = safe_join_server_path(key, os.path.join(rel, old))
        dst = safe_join_server_path(key, os.path.join(rel, new))
        os.rename(src, dst)
        return jsonify({"success": True})
    except Exception as e:
        return jsonify({"success": False, "message": str(e)}), 500


@app.route("/files/delete/<path:key>", methods=["POST"])
@login_required
def file_delete(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403
    data = request.get_json(silent=True) or {}
    rel = data.get("path", "") or ""
    name = safe_name(data.get("name", ""))
    kind = (data.get("kind") or "file").lower()
    if not name:
        return jsonify({"success": False, "message": "Bad name"}), 400
    try:
        target = safe_join_server_path(key, os.path.join(rel, name))
        if kind == "dir":
            shutil.rmtree(target)
        else:
            os.remove(target)
        return jsonify({"success": True})
    except Exception as e:
        return jsonify({"success": False, "message": str(e)}), 500


@app.route("/files/upload/<path:key>", methods=["POST"])
@login_required
@rate_limited
def file_upload(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403

    rel = request.args.get("path", "") or ""
    try:
        base_dir = safe_join_server_path(key, rel)
    except Exception:
        return jsonify({"success": False, "message": "Invalid path"}), 400
    os.makedirs(base_dir, exist_ok=True)

    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    current_size_mb = get_dir_size(server_dir) / 1024 / 1024
    disk_limit_mb = get_user_disk_limit(owner)

    files = request.files.getlist("files") or []
    if not files:
        one = request.files.get("file")
        if one:
            files = [one]
    if not files:
        return jsonify({"success": False, "message": "No file"}), 400

    relpaths = request.form.getlist("relpaths")
    saved = 0

    for i, f in enumerate(files):
        if not f or not f.filename:
            continue
        filename = os.path.basename(f.filename)

        rp = ""
        if relpaths and i < len(relpaths):
            rp = (relpaths[i] or "").replace("\\", "/").lstrip("/")

        try:
            if rp:
                target_dir = safe_join_server_path(key, os.path.join(rel, os.path.dirname(rp)))
            else:
                target_dir = base_dir
        except Exception:
            continue

        f.seek(0, os.SEEK_END)
        file_length = f.tell()
        f.seek(0)
        
        if current_size_mb + (file_length / 1024 / 1024) > disk_limit_mb:
            continue
            
        current_size_mb += file_length / 1024 / 1024

        os.makedirs(target_dir, exist_ok=True)
        f.save(os.path.join(target_dir, filename))
        saved += 1

    return jsonify({"success": True, "saved": saved})


@app.route("/api/admin/servers")
@admin_required
def admin_servers():
    return jsonify({"success": True, "servers": list_all_servers_for_admin()})


@app.route("/api/admin/server/ban", methods=["POST"])
@admin_required
def admin_server_ban():
    data = request.get_json(silent=True) or {}
    key = (data.get("key") or "").strip()
    banned = bool(data.get("banned", True))

    owner, folder = parse_server_key(key, allow_admin=True)
    server_dir = get_server_dir(owner, folder)
    if not os.path.isdir(server_dir):
        return jsonify({"success": False, "message": "Server not found"}), 404

    meta = read_meta(owner, folder)
    meta["banned"] = banned
    write_meta(owner, folder, meta)

    if banned:
        stop_proc(key)
        set_state(key, "Banned")
        log_append(key, "[ADMIN] Server banned.\n")
    else:
        set_state(key, "Offline")
        log_append(key, "[ADMIN] Server unbanned.\n")

    return jsonify({"success": True})





@app.route("/api/ai/chat", methods=["POST"])
@login_required
@rate_limited
def api_ai_chat():
    client = get_ai_client()
    if client is None:
        return jsonify({"success": False, "message": "AI service currently unavailable"}), 503
    
    username = current_username()
    db = load_users()
    u = find_user(db, username)
    
    if not u and not is_admin_session():
        return jsonify({"success": False, "message": "User not found"}), 404

    # AI LIMITS
    now_date = time.strftime("%Y-%m-%d")
    
    if u:
        ai_status = u.setdefault("ai_usage", {"date": "", "count": 0})
    else:
        # Admin or special user not in DB, create temporary status
        ai_status = {"date": now_date, "count": 0}

    if ai_status["date"] != now_date:
        ai_status["date"] = now_date
        ai_status["count"] = 0
    
    if not is_admin_session() and ai_status["count"] >= AI_DAILY_LIMIT:
        return jsonify({"success": False, "message": f"Daily limit reached ({AI_DAILY_LIMIT} requests). Please try again tomorrow."}), 429
    
    data = request.get_json(silent=True) or {}
    message = data.get("message", "").strip()
    model = data.get("model", "deepseek-r1:latest")
    
    if not message:
        return jsonify({"success": False, "message": "No message provided"}), 400
        
    SYSTEM_PROMPT = "You are White Wolf AI, a specialized assistant for the White Wolf Bot Hosting platform. " \
                    "Help users with their bots, code, and platform issues. Be helpful and expert."
    
    try:
        # Integrating system prompt into the user's prompt for simple API call
        full_prompt = f"System: {SYSTEM_PROMPT}\nUser: {message}"
        response = client.chat(model=model, prompt=full_prompt)
        
        ai_status["count"] += 1
        save_users(db)
        
        return jsonify({"success": True, "response": response})
    except Exception as e:
        logger.error(f"AI Error: {e}")
        return jsonify({"success": False, "message": str(e)}), 500

@app.route("/api/ai/models")
@login_required
def api_ai_models():
    return jsonify({
        "success": True, 
        "models": ["llama3.2:3b", "deepseek-r1:latest", "mistral:latest", "gpt-oss:20b"]
    })


@app.route("/api/ads")
def api_get_ads():
    return jsonify(load_ads())

@app.route("/api/server/renew/<path:key>", methods=["POST"])
@login_required
def api_renew_server(key):
    if not can_access_key(key):
        return jsonify({"success": False, "message": "Forbidden"}), 403
    owner, folder = parse_server_key(key, allow_admin=True)
    meta = read_meta(owner, folder)
    meta["last_renewed"] = time.time()
    write_meta(owner, folder, meta)
    return jsonify({"success": True})


@app.route("/api/admin/quickstats")
@admin_required
def admin_quickstats():
    total_servers = 0
    running = 0
    installing = 0
    banned = 0

    for s in list_all_servers_for_admin():
        total_servers += 1
        if s.get("status") == "Banned":
            banned += 1
        elif s.get("status") == "Running":
            running += 1
        elif s.get("status") in ("Installing", "Starting"):
            installing += 1

    db = load_users()
    total_users = len(db.get("users", []))
    active_users = sum(1 for u in db.get("users", []) if u.get("active", True))
    premium_users = sum(1 for u in db.get("users", []) if u.get("premium", False))

    return jsonify({"success": True, "stats": {
        "servers_total": total_servers,
        "servers_running": running,
        "servers_installing": installing,
        "servers_banned": banned,
        "users_total": total_users,
        "users_active": active_users,
        "users_premium": premium_users
    }})


def run_keep_alive():
    port = int(os.environ.get("SERVER_PORT", 30170))
    url = f"http://127.0.0.1:{port}/health"
    time.sleep(15) # Wait for server to boot
    while True:
        try:
            requests.get(url, timeout=10)
            with lock:
                for key in list(running_procs.keys()):
                    proc, logf = running_procs[key]
                    if not psutil.pid_exists(proc.pid) or proc.poll() is not None:
                        logger.info(f"Process dead for '{key}', cleaning up")
                        try:
                            logf.close()
                        except Exception:
                            pass
                        running_procs.pop(key, None)
                        server_states[key] = "Offline"
                    else:
                        try:
                            p = psutil.Process(proc.pid)
                            mem_mb = p.memory_info().rss / 1024 / 1024
                            if mem_mb > MAX_PROCESS_MEMORY_MB:
                                logger.warning(f"Process '{key}' using {mem_mb:.0f}MB, killing")
                                for child in p.children(recursive=True):
                                    child.kill()
                                p.kill()
                                running_procs.pop(key, None)
                                server_states[key] = "Offline"
                                log_append(key, f"[SYSTEM] Killed: memory limit exceeded ({mem_mb:.0f}MB)\n")
                        except Exception:
                            pass
                for key, state in list(server_states.items()):
                    if state == "Running" and key not in running_procs:
                        logger.info(f"Auto-Recovery: restarting '{key}'")
                        try:
                            owner, folder = key.split("::", 1) if "::" in key else (ADMIN_USERNAME, key)
                            meta = read_meta(owner, folder)
                            startup = meta.get("startup_file")
                            if startup and not meta.get("banned", False):
                                t = threading.Thread(target=background_start, args=(key, owner, folder, startup), daemon=True)
                                t.start()
                            else:
                                server_states[key] = "Offline"
                        except Exception as e:
                            logger.error(f"Recovery failed for '{key}': {e}")
                            server_states[key] = "Offline"
        except Exception as e:
            logger.error(f"Keep-Alive Error: {e}")
        time.sleep(300)

def run_git_sync():
    if os.environ.get("SPACE_ID"):
        logger.info("Git Auto-Sync disabled inside Hugging Face Space (to prevent loops)")
        return
    
    logger.info("Git Auto-Sync system started")
    while True:
        try:
            cwd = os.getcwd()
            # Stage changes
            subprocess.run(["git", "add", "."], cwd=cwd, capture_output=True)
            # Commit with timestamp
            msg = f"Auto-Sync: {time.strftime('%Y-%m-%d %H:%M:%S')}"
            subprocess.run(["git", "commit", "-m", msg], cwd=cwd, capture_output=True)
            # Push to GitHub
            subprocess.run(["git", "push", "origin", "main"], cwd=cwd, capture_output=True)
            # Push to Hugging Face
            subprocess.run(["git", "push", "hf", "main"], cwd=cwd, capture_output=True)
            logger.info("Auto-Sync: Platform synced with GitHub & Hugging Face")
        except Exception as e:
            logger.error(f"Auto-Sync Error: {e}")
        time.sleep(3600) # Sync every hour


def truncate_large_logs():
    if not os.path.isdir(USERS_ROOT):
        return
    for owner in os.listdir(USERS_ROOT):
        root = get_user_servers_root(owner)
        if not os.path.isdir(root):
            continue
        for folder in os.listdir(root):
            log_path = os.path.join(get_server_dir(owner, folder), "server.log")
            try:
                if os.path.exists(log_path) and os.path.getsize(log_path) > MAX_LOG_SIZE:
                    with open(log_path, 'r', encoding='utf-8', errors='ignore') as f:
                        f.seek(os.path.getsize(log_path) - MAX_LOG_SIZE // 2)
                        content = f.read()
                    with open(log_path, 'w', encoding='utf-8') as f:
                        f.write("[SYSTEM] Log truncated\n" + content)
            except Exception:
                pass


def run_log_cleaner():
    while True:
        time.sleep(600)
        truncate_large_logs()
        cleanup_old_data()


def cleanup_old_data():
    """حذف البيانات القديمة والغير نشطة"""
    try:
        db = load_db()
        current_time = time.time()
        
        # حذف السيرفرات غير النشطة لأكثر من 30 يوم
        if "servers" in db:
            active_servers = []
            for server in db["servers"]:
                # حذف السيرفرات غير النشطة لأكثر من 30 يوم
                if server.get("last_renewed") and (current_time - server["last_renewed"]) > 30 * 24 * 3600:
                    server_folder = os.path.join(USERS_ROOT, server.get("folder", ""))
                    if os.path.exists(server_folder):
                        shutil.rmtree(server_folder, ignore_errors=True)
                    logger.info(f"Deleted old server: {server.get('folder')}")
                else:
                    active_servers.append(server)
            db["servers"] = active_servers
        
        # حذف المستخدمين غير النشطين لأكثر من 90 يوم
        if "users" in db:
            active_users = []
            for user in db["users"]:
                if user.get("last_active") and (current_time - user["last_active"]) > 90 * 24 * 3600:
                    user_folder = os.path.join(USERS_ROOT, user.get("username", ""))
                    if os.path.exists(user_folder):
                        shutil.rmtree(user_folder, ignore_errors=True)
                    logger.info(f"Deleted inactive user: {user.get('username')}")
                else:
                    active_users.append(user)
            db["users"] = active_users
        
        save_db(db)
        logger.info("Cleanup of old data completed")
    except Exception as e:
        logger.error(f"Error during cleanup: {e}")


# نظام الحماية والجدار الناري
class Firewall:
    def __init__(self):
        self.blocked_ips = set()
        self.rate_limits = defaultdict(list)
        self.max_requests_per_minute = 60
        self.block_duration = 3600  # ساعة
    
    def is_blocked(self, ip):
        """التحقق إذا كان IP محظور"""
        return ip in self.blocked_ips
    
    def block_ip(self, ip):
        """حظر IP"""
        self.blocked_ips.add(ip)
        logger.warning(f"Blocked IP: {ip}")
    
    def check_rate_limit(self, ip):
        """التحقق من الحد الأقصى للطلبات"""
        current_time = time.time()
        # إزالة الطلبات القديمة (أقدم من دقيقة)
        self.rate_limits[ip] = [t for t in self.rate_limits[ip] if current_time - t < 60]
        
        if len(self.rate_limits[ip]) >= self.max_requests_per_minute:
            self.block_ip(ip)
            return False
        
        self.rate_limits[ip].append(current_time)
        return True
    
    def unblock_ip(self, ip):
        """إلغاء حظر IP"""
        if ip in self.blocked_ips:
            self.blocked_ips.remove(ip)
            logger.info(f"Unblocked IP: {ip}")


firewall = Firewall()


# نظام الحميات (Subscription Plans)
SUBSCRIPTION_PLANS = {
    "free": {
        "name": "Free",
        "price": 0,
        "max_bots": 3,
        "max_mem_mb": 256,
        "max_cpu_percent": 50,
        "features": ["3 Bots", "256MB RAM", "Basic Support"]
    },
    "basic": {
        "name": "Basic",
        "price": 10,
        "max_bots": 5,
        "max_mem_mb": 512,
        "max_cpu_percent": 70,
        "features": ["5 Bots", "512MB RAM", "Priority Support", "Advanced Analytics"]
    },
    "pro": {
        "name": "Pro",
        "price": 25,
        "max_bots": 10,
        "max_mem_mb": 1024,
        "max_cpu_percent": 80,
        "features": ["10 Bots", "1GB RAM", "24/7 Support", "Advanced Analytics", "Custom Domain"]
    },
    "enterprise": {
        "name": "Enterprise",
        "price": 100,
        "max_bots": 50,
        "max_mem_mb": 4096,
        "max_cpu_percent": 90,
        "features": ["50 Bots", "4GB RAM", "Dedicated Support", "Advanced Analytics", "Custom Domain", "API Access", "White Label"]
    }
}


def get_user_plan(username):
    """الحصول على خطة المستخدم"""
    db = load_db()
    for user in db.get("users", []):
        if user.get("username") == username:
            return user.get("plan", "free")
    return "free"


def get_plan_limits(plan):
    """الحصول على حدود الخطة"""
    return SUBSCRIPTION_PLANS.get(plan, SUBSCRIPTION_PLANS["free"])


def check_plan_limits(username):
    """التحقق من حدود خطة المستخدم"""
    plan = get_user_plan(username)
    limits = get_plan_limits(plan)
    
    db = load_db()
    user_servers = [s for s in db.get("servers", []) if s.get("owner") == username]
    
    if len(user_servers) >= limits["max_bots"]:
        return False, f"You have reached the maximum number of bots ({limits['max_bots']}) for your {limits['name']} plan"
    
    return True, None


# API endpoints للحميات
@app.route("/api/subscription/plans", methods=["GET"])
@login_required
def get_subscription_plans():
    """الحصول على جميع خطط الاشتراك"""
    return jsonify({"success": True, "plans": SUBSCRIPTION_PLANS})


@app.route("/api/subscription/current", methods=["GET"])
@login_required
def get_current_subscription():
    """الحصول على خطة المستخدم الحالية"""
    username = session.get("username")
    plan = get_user_plan(username)
    limits = get_plan_limits(plan)
    
    db = load_db()
    user_servers = [s for s in db.get("servers", []) if s.get("owner") == username]
    
    return jsonify({
        "success": True,
        "plan": plan,
        "limits": limits,
        "usage": {
            "bots_used": len(user_servers),
            "bots_remaining": limits["max_bots"] - len(user_servers)
        }
    })


@app.route("/api/subscription/upgrade", methods=["POST"])
@login_required
def upgrade_subscription():
    """ترقية خطة الاشتراك"""
    username = session.get("username")
    data = request.get_json()
    new_plan = data.get("plan")
    
    if new_plan not in SUBSCRIPTION_PLANS:
        return jsonify({"success": False, "message": "Invalid plan"}), 400
    
    db = load_db()
    for user in db.get("users", []):
        if user.get("username") == username:
            user["plan"] = new_plan
            user["plan_updated_at"] = time.time()
            save_db(db)
            logger.info(f"User {username} upgraded to {new_plan} plan")
            return jsonify({"success": True, "message": f"Successfully upgraded to {new_plan} plan"})
    
    return jsonify({"success": False, "message": "User not found"}), 404


# API endpoints للجدار الناري
@app.route("/api/firewall/blocked-ips", methods=["GET"])
@admin_required
def get_blocked_ips():
    """الحصول على قائمة IPs المحظورة"""
    return jsonify({"success": True, "blocked_ips": list(firewall.blocked_ips)})


@app.route("/api/firewall/block-ip", methods=["POST"])
@admin_required
def block_ip_admin():
    """حظر IP من قبل الأدمن"""
    data = request.get_json()
    ip = data.get("ip")
    if not ip:
        return jsonify({"success": False, "message": "IP required"}), 400
    
    firewall.block_ip(ip)
    return jsonify({"success": True, "message": f"IP {ip} blocked"})


@app.route("/api/firewall/unblock-ip", methods=["POST"])
@admin_required
def unblock_ip_admin():
    """إلغاء حظر IP من قبل الأدمن"""
    data = request.get_json()
    ip = data.get("ip")
    if not ip:
        return jsonify({"success": False, "message": "IP required"}), 400
    
    firewall.unblock_ip(ip)
    return jsonify({"success": True, "message": f"IP {ip} unblocked"})


@app.route("/api/firewall/cleanup-now", methods=["POST"])
@admin_required
def cleanup_now():
    """تنفيذ تنظيف البيانات القديمة فوراً"""
    cleanup_old_data()
    return jsonify({"success": True, "message": "Cleanup completed"})


@app.before_request
def firewall_check():
    """التحقق من الجدار الناري قبل كل طلب"""
    if request.path.startswith('/static') or request.path.startswith('/health'):
        return None
    
    client_ip = request.remote_addr or '127.0.0.1'
    
    # التحقق من الحظر
    if firewall.is_blocked(client_ip):
        return jsonify({"success": False, "message": "IP blocked"}), 403
    
    # التحقق من الحد الأقصى للطلبات
    if not firewall.check_rate_limit(client_ip):
        return jsonify({"success": False, "message": "Rate limit exceeded"}), 429
    
    return None


@app.route("/health")
def health_check():
    return jsonify({"status": "ok", "uptime": time.time()})


@app.route("/api/system/status")
@admin_required
def system_status():
    try:
        cpu = psutil.cpu_percent(interval=0.5)
        mem = psutil.virtual_memory()
        disk = psutil.disk_usage('/')
        procs = len(running_procs)
        return jsonify({
            "success": True,
            "cpu_percent": cpu,
            "memory_used_mb": round(mem.used / 1024 / 1024),
            "memory_total_mb": round(mem.total / 1024 / 1024),
            "memory_percent": mem.percent,
            "disk_used_gb": round(disk.used / 1024 / 1024 / 1024, 1),
            "disk_total_gb": round(disk.total / 1024 / 1024 / 1024, 1),
            "disk_percent": round(disk.percent, 1),
            "running_processes": procs
        })
    except Exception as e:
        return jsonify({"success": False, "message": str(e)}), 500


def graceful_shutdown(signum, frame):
    logger.info("Shutting down gracefully...")
    with lock:
        for key in list(running_procs.keys()):
            stop_proc(key)
    logger.info("All processes stopped.")
    sys.exit(0)


signal.signal(signal.SIGTERM, graceful_shutdown)
signal.signal(signal.SIGINT, graceful_shutdown)

if __name__ == "__main__":
    port = int(os.environ.get("SERVER_PORT", 7860))
    logger.info(f"--- SYSTEM INITIALIZATION: Port {port} ---")
    
    # Start background tasks
    threading.Thread(target=run_keep_alive, daemon=True).start()
    threading.Thread(target=run_log_cleaner, daemon=True).start()
    threading.Thread(target=run_git_sync, daemon=True).start()
    
    try:
        from gunicorn.app.wsgiapp import run as gunicorn_run
        logger.info("Launching Production WSGI Engine (Gunicorn)...")
        sys.argv = [
            'gunicorn',
            '--bind', f'0.0.0.0:{port}',
            '--worker-class', 'sync',
            '--workers', '1',
            '--timeout', '600',
            'app:app'
        ]
        gunicorn_run()
    except Exception as e:
        logger.error(f"Gunicorn failed: {e}. Falling back to development server.")
        app.run(host="0.0.0.0", port=port, threaded=True)