"""
Master Bot (Telethon) - Eval & Plugin Userbot Edition
- Upload a .session file or send a Bot Token to register an assistant.
- Assistants respond to .val, .bash, /install, /promote, /demote, /help
- Commands are restricted to the owner, the userbot account itself, and promoted users.
- Dynamic plugin loading via /install.
"""

import os
import asyncio
import logging
import sqlite3
import time
import inspect
import sys
import traceback
import json
import requests
import importlib.util
from io import StringIO, BytesIO
from datetime import datetime
from typing import Dict, Any, Optional

import telethon
from telethon import TelegramClient, events, Button
from telethon.utils import get_display_name

try:
    import black
except ImportError:
    black = None

# ---------------- CONFIG - EDIT THESE ----------------
API_ID = 22138159
API_HASH = "3fe4592e4cad72f366b6c564505f2d57"

MASTER_BOT_SESSION = "master.session"
MASTER_BOT_TOKEN = "8445494601:AAGTLtC-yifUHAPXY9DdJ-wEfqCyXCqguSU"

DB_PATH = "masterbot.db"
SESSIONS_DIR = "sessions"
PLUGINS_DIR = "plugins"

SUPER_ADMIN_ID = 948247711
LOG_CHANNEL_ID = -1001744991128

CLIENT_IDLE_TIMEOUT = 60 * 60
CLEANUP_INTERVAL = 15 * 60
MAX_ACTIVE_CLIENTS = 60
# ---------------- END CONFIG ----------------

os.makedirs(SESSIONS_DIR, exist_ok=True)
os.makedirs(PLUGINS_DIR, exist_ok=True)
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger("masterbot")


# ---------------- API SESSION GENERATOR ----------------
def generate_session_via_api(token: str, filepath: str) -> bool:
    # IMPORTANT: Ensure this is just a plain string without markdown brackets.
    url = "https://string-zfw3.onrender.com/generate"
    payload = {
        "api_id": API_ID,
        "api_hash": API_HASH,
        "bot_token": token,
        "library": "telethon"
    }
    try:
        response = requests.post(url, json=payload)
        if response.status_code == 200:
            with open(filepath, "wb") as f:
                f.write(response.content)
            return True
        else:
            logger.error(f"API Generation Failed. Error: {response.text}")
            return False
    except Exception as e:
        logger.error(f"Request to Session API failed: {e}")
        return False


# ---------------- EVAL UTILITIES ----------------
def time_formatter(milliseconds):
    seconds, milliseconds = divmod(int(milliseconds), 1000)
    minutes, seconds = divmod(seconds, 60)
    hours, minutes = divmod(minutes, 60)
    days, hours = divmod(hours, 24)
    tmp = (
        (f"{days}d, " if days else "")
        + (f"{hours}h, " if hours else "")
        + (f"{minutes}m, " if minutes else "")
        + (f"{seconds}s, " if seconds else "")
        + (f"{milliseconds}ms, " if milliseconds else "")
    )
    return tmp[:-2]

class u:
    _ = ""
    r = None
    lr = None

async def aexec(code, event):
    exec(
        (
            "async def __aexec(e, client): "
            + "\n print = p = _stringify"
            + "\n message = event = e"
            + "\n u.r = reply = await event.get_reply_message()"
            + "\n chat = event.chat_id"
            + "\n u.lr = locals()"
        )
        + "".join(f"\n {l}" for l in code.split("\n"))
    )
    return await locals()["__aexec"](event, event.client)

def _parse_eval(value=None):
    if not value:
        return value
    if hasattr(value, "stringify"):
        try:
            return value.stringify()
        except TypeError:
            pass
    elif isinstance(value, dict):
        try:
            return json.dumps(value, indent=1, default=str)
        except BaseException:
            pass
    elif isinstance(value, list):
        newlist = "["
        for index, child in enumerate(value):
            newlist += "\n  " + str(_parse_eval(child))
            if index < len(value) - 1:
                newlist += ","
        newlist += "\n]"
        return newlist
    return str(value)

def _stringify(text=None, *args, **kwargs):
    if text:
        u._ = text
        text = _parse_eval(text)
    return print(text, *args, **kwargs)

async def eor(event, text, **kwargs):
    """Polyfill for userbot eor (edit or reply)"""
    try:
        return await event.edit(text, **kwargs)
    except Exception:
        return await event.reply(text, **kwargs)

# ---------------- Database ----------------
def init_db():
    conn = sqlite3.connect(DB_PATH, check_same_thread=False)
    cur = conn.cursor()
    cur.execute("""
    CREATE TABLE IF NOT EXISTS bots (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        owner_id INTEGER NOT NULL,
        bot_username TEXT NOT NULL UNIQUE,
        token_encrypted BLOB NOT NULL,
        active INTEGER NOT NULL DEFAULT 1,
        reply_text TEXT,
        created_at TEXT NOT NULL
    );
    """)
    cur.execute("""
    CREATE TABLE IF NOT EXISTS bans (
        user_id INTEGER PRIMARY KEY,
        reason TEXT,
        banned_at TEXT
    );
    """)
    # New table for promoted users
    cur.execute("""
    CREATE TABLE IF NOT EXISTS sudoers (
        bot_username TEXT NOT NULL,
        user_id INTEGER NOT NULL,
        UNIQUE(bot_username, user_id)
    );
    """)
    conn.commit()
    return conn

db = init_db()

# ---------------- In-memory caches ----------------
assistant_clients: Dict[str, Dict[str, Any]] = {}
assistant_lock = asyncio.Lock()
user_states: Dict[int, Dict[str, Any]] = {}

# ---------------- Master client ----------------
master = TelegramClient(MASTER_BOT_SESSION, API_ID, API_HASH)

# ---------------- DB Utilities ----------------
def db_add_bot(owner_id: int, bot_username: str):
    cur = db.cursor()
    cur.execute("INSERT OR REPLACE INTO bots (owner_id, bot_username, token_encrypted, created_at) VALUES (?, ?, ?, ?)",
                (owner_id, bot_username, b"SESSION_FILE", datetime.utcnow().isoformat()))
    db.commit()

def db_set_active(bot_username: str, active: bool):
    cur = db.cursor()
    cur.execute("UPDATE bots SET active = ? WHERE bot_username = ?", (1 if active else 0, bot_username))
    db.commit()

def db_get_bot_record(bot_username: str):
    cur = db.cursor()
    cur.execute("SELECT owner_id, active FROM bots WHERE bot_username = ?", (bot_username,))
    r = cur.fetchone()
    if not r:
        return None
    return {"owner_id": r[0], "active": bool(r[1])}

def db_get_bots_for_owner(owner_id: int):
    cur = db.cursor()
    cur.execute("SELECT bot_username FROM bots WHERE owner_id = ?", (owner_id,))
    return [row[0] for row in cur.fetchall()]

def db_remove_bot(bot_username: str):
    cur = db.cursor()
    cur.execute("DELETE FROM bots WHERE bot_username = ?", (bot_username,))
    db.commit()
    try:
        path = session_path_for_username(bot_username)
        if os.path.exists(path):
            os.remove(path)
    except Exception as e:
        logger.error(f"Failed to remove session file for {bot_username}: {e}")

def db_is_banned(user_id: int) -> bool:
    cur = db.cursor()
    cur.execute("SELECT 1 FROM bans WHERE user_id = ?", (user_id,))
    return cur.fetchone() is not None

# Sudo Utilities
def db_add_sudo(bot_username: str, user_id: int):
    cur = db.cursor()
    cur.execute("INSERT OR IGNORE INTO sudoers (bot_username, user_id) VALUES (?, ?)", (bot_username, user_id))
    db.commit()

def db_remove_sudo(bot_username: str, user_id: int):
    cur = db.cursor()
    cur.execute("DELETE FROM sudoers WHERE bot_username = ? AND user_id = ?", (bot_username, user_id))
    db.commit()

def db_get_sudos(bot_username: str):
    cur = db.cursor()
    cur.execute("SELECT user_id FROM sudoers WHERE bot_username = ?", (bot_username,))
    return [row[0] for row in cur.fetchall()]

def session_path_for_username(username: str) -> str:
    safe = username.replace("@", "")
    return os.path.join(SESSIONS_DIR, f"{safe}.session")

async def send_to_log_channel(text: str, file=None, parse_mode=None):
    try:
        if file:
            await master.send_file(LOG_CHANNEL_ID, file, caption=text, parse_mode=parse_mode)
        else:
            await master.send_message(LOG_CHANNEL_ID, text, parse_mode=parse_mode)
    except Exception:
        logger.exception("Failed to send log to channel")

# ---------------- Assistant lifecycle & COMMAND HANDLERS ----------------
async def create_and_start_assistant(bot_username: str, owner_id: int) -> bool:
    sess_path = session_path_for_username(bot_username)
    if not os.path.exists(sess_path):
        return False

    client = TelegramClient(sess_path, API_ID, API_HASH)
    
    try:
        await client.connect()
        if not await client.is_user_authorized():
            await client.disconnect()
            return False
        me = await client.get_me()
        bot_id = me.id
    except Exception as e:
        logger.exception("Failed to start assistant client for %s: %s", bot_username, e)
        return False

    # Authorization check function
    async def is_auth(event):
        sender_id = event.sender_id
        if sender_id == owner_id: return True # Master owner
        if sender_id == bot_id: return True # The userbot itself
        if sender_id in db_get_sudos(bot_username): return True # Promoted users
        return False

    # 1. VAL SCRIPT (Eval)
    @client.on(events.NewMessage(pattern=r"^[.\/!]val(?:\s|$)"))
    async def eval_handler(event):
        if not await is_auth(event): return
        
        try:
            cmd = event.text.split(maxsplit=1)[1]
        except IndexError:
            return await eor(event, "Please provide code to evaluate.")
            
        async with assistant_lock:
            if bot_username in assistant_clients:
                assistant_clients[bot_username]["last_used"] = time.time()

        xx = None
        mode = ""
        spli = cmd.split()

        async def get_():
            try:
                return cmd.split(maxsplit=1)[1]
            except IndexError:
                await eor(event, "->> Wrong Format <<-")
                return None

        if spli[0] in ["-s", "--silent"]:
            await event.delete()
            mode = "silent"
        elif spli[0] in ["-n", "-noedit"]:
            mode = "no-edit"
            xx = await event.reply("Running...")
        elif spli[0] in ["-gs", "--source"]:
            mode = "gsource"
        elif spli[0] in ["-ga", "--args"]:
            mode = "g-args"
            
        if mode: cmd = await get_()
        if not cmd: return
            
        if not mode == "silent" and not xx:
            xx = await eor(event, "Running...")
            
        if black:
            try:
                cmd = black.format_str(cmd, mode=black.Mode())
            except BaseException: pass
                
        reply_to_id = event.reply_to_msg_id or event
        old_stderr, old_stdout = sys.stderr, sys.stdout
        redirected_output = sys.stdout = StringIO()
        redirected_error = sys.stderr = StringIO()
        stdout, stderr, exc, timeg = None, None, None, None
        tima = time.time()
        
        try:
            value = await aexec(cmd, event)
        except Exception:
            value = None
            exc = traceback.format_exc()
            
        tima = time.time() - tima
        stdout = redirected_output.getvalue()
        stderr = redirected_error.getvalue()
        sys.stdout, sys.stderr = old_stdout, old_stderr
        
        if value:
            try:
                if mode == "gsource":
                    exc = inspect.getsource(value)
                elif mode == "g-args":
                    args = inspect.signature(value).parameters.values()
                    name = getattr(value, "__name__", "")
                    exc = f"**{name}**\n\n" + "\n ".join([str(arg) for arg in args])
            except Exception:
                exc = traceback.format_exc()
                
        evaluation = exc or stderr or stdout or _parse_eval(value) or "Evaluation finished."
        
        # tc variable prevents UI breakage by building telegram markdown formatting dynamically
        tc = chr(96) * 3 

        if mode == "silent":
            if exc:
                msg = f"• <b>EVAL ERROR\n\n• CHAT:</b> <code>{get_display_name(event.chat)}</code> [<code>{event.chat_id}</code>]"
                msg += f"\n\n∆ <b>CODE:</b>\n<code>{cmd}</code>\n\n∆ <b>ERROR:</b>\n<code>{exc}</code>"
                if len(msg) > 4000:
                    with BytesIO(msg.encode()) as out_file:
                        out_file.name = "Eval-Error.txt"
                    return await send_to_log_channel(f"`{cmd}`", file=out_file)
                await send_to_log_channel(msg, parse_mode="html")
            return
            
        tmt = tima * 1000
        timef = time_formatter(tmt)
        timeform = timef if not timef == "0s" else f"{tmt:.3f}ms"

        # Dynamically injecting format to protect code blocks
        final_output = f"__►__ **EVAL** (__in {timeform}__)\n{tc}python\n{cmd}\n{tc}\n\n __►__ **OUTPUT**: \n{tc}\n{evaluation}\n{tc}\n"
        
        if len(final_output) > 4096:
            final_output = evaluation
            with BytesIO(str.encode(final_output)) as out_file:
                out_file.name = "eval.txt"
                capt = f"{tc}{cmd}{tc}" if len(cmd) < 998 else None
                await client.send_file(event.chat_id, out_file, force_document=True, allow_cache=False, caption=capt, reply_to=reply_to_id)
            if xx: return await xx.delete()
            return
            
        if xx: await eor(xx, final_output)

    # 2. BASH SCRIPT (Shell Execution)
    @client.on(events.NewMessage(pattern=r"^[.\/!]bash(?:\s|$)"))
    async def bash_handler(event):
        if not await is_auth(event): return
        
        try:
            cmd = event.text.split(maxsplit=1)[1]
        except IndexError:
            return await eor(event, "Please provide a shell command to execute.")
            
        xx = await eor(event, "`Executing bash command...`")
        
        try:
            process = await asyncio.create_subprocess_shell(
                cmd,
                stdout=asyncio.subprocess.PIPE,
                stderr=asyncio.subprocess.PIPE
            )
            stdout, stderr = await process.communicate()
            
            output = stdout.decode().strip() or stderr.decode().strip() or "Command executed successfully with no output."
            
            tc = chr(96) * 3
            final_output = f"**► BASH**\n{tc}bash\n{cmd}\n{tc}\n\n**► OUTPUT**\n{tc}\n{output}\n{tc}"
            
            if len(final_output) > 4000:
                with BytesIO(output.encode()) as out_file:
                    out_file.name = "bash_output.txt"
                await client.send_file(event.chat_id, out_file, caption=f"`{cmd}`")
                await xx.delete()
            else:
                await eor(xx, final_output)
                
        except Exception as e:
            err = traceback.format_exc()
            tc = chr(96) * 3
            await eor(xx, f"**► BASH ERROR**\n{tc}bash\n{cmd}\n{tc}\n\n**► ERROR**\n{tc}\n{err}\n{tc}")
            await send_to_log_channel(f"Bash Error on {bot_username}: {str(e)}")

    # 3. INSTALL PLUGIN
    @client.on(events.NewMessage(pattern=r"^[.\/!]install$"))
    async def install_handler(event):
        if not await is_auth(event): return
        
        tc = chr(96) * 3
        if not event.is_reply:
            example = (
                "**How to use /install:**\n\n"
                "1. Reply to a `.py` file containing Telethon code.\n"
                "2. The file will be downloaded and its code loaded dynamically.\n\n"
                "**Example Plugin:**\n"
                f"{tc}python\n"
                "@client.on(events.NewMessage(pattern='/ping'))\n"
                "async def ping(event):\n"
                "    await event.reply('Pong!')\n"
                f"{tc}"
            )
            return await eor(event, example)
            
        reply = await event.get_reply_message()
        if not reply.file or not reply.file.name.endswith('.py'):
            return await eor(event, "Please reply to a valid `.py` Python script.")
            
        xx = await eor(event, "`Installing plugin...`")
        
        plugin_name = reply.file.name
        bot_plugin_dir = os.path.join(PLUGINS_DIR, bot_username.replace("@", ""))
        os.makedirs(bot_plugin_dir, exist_ok=True)
        
        file_path = os.path.join(bot_plugin_dir, plugin_name)
        await reply.download_media(file=file_path)
        
        try:
            # We inject 'client', 'events', and 'telethon' into the script's global namespace
            # so the decorators in the raw script will attach directly to this specific assistant.
            with open(file_path, "r", encoding="utf-8") as f:
                code_str = f.read()
                
            exec_globals = {
                "client": client,
                "events": events,
                "telethon": telethon,
                "asyncio": asyncio,
                "os": os,
                "sys": sys
            }
            exec(code_str, exec_globals)
            await eor(xx, f"✅ **Successfully installed module:** `{plugin_name}`")
        except Exception as e:
            err = traceback.format_exc()
            await eor(xx, f"❌ **Failed to install {plugin_name}**\n\n{tc}python\n{err}\n{tc}")
            if os.path.exists(file_path): os.remove(file_path)

    # 4. PROMOTE / DEMOTE
    @client.on(events.NewMessage(pattern=r"^[.\/!]promote(?:\s|$)"))
    async def promote_handler(event):
        if event.sender_id != owner_id and event.sender_id != bot_id:
            return await eor(event, "Only the owner can promote users.")
            
        try:
            target = event.text.split(maxsplit=1)[1]
            entity = await client.get_entity(target)
            db_add_sudo(bot_username, entity.id)
            await eor(event, f"✅ Successfully promoted `{entity.first_name}` to sudo.")
        except IndexError:
            await eor(event, "Provide a username or user ID.")
        except Exception as e:
            await eor(event, f"Error: {str(e)}")

    @client.on(events.NewMessage(pattern=r"^[.\/!]demote(?:\s|$)"))
    async def demote_handler(event):
        if event.sender_id != owner_id and event.sender_id != bot_id:
            return await eor(event, "Only the owner can demote users.")
            
        try:
            target = event.text.split(maxsplit=1)[1]
            entity = await client.get_entity(target)
            db_remove_sudo(bot_username, entity.id)
            await eor(event, f"❌ Successfully demoted `{entity.first_name}`.")
        except IndexError:
            await eor(event, "Provide a username or user ID.")
        except Exception as e:
            await eor(event, f"Error: {str(e)}")

    # 5. HELP COMMAND
    @client.on(events.NewMessage(pattern=r"^[.\/!]help$"))
    async def help_handler(event):
        if not await is_auth(event): return
        
        help_text = (
            f"🤖 **{bot_username} Assistant Help Menu**\n\n"
            "**Core Commands:**\n"
            "🔹 `.val <code>` - Evaluate Python code.\n"
            "🔹 `.bash <code>` - Execute shell/terminal commands.\n"
            "🔹 `/install` - Reply to a `.py` file to load custom code.\n\n"
            "**Admin Commands (Owner Only):**\n"
            "🔹 `/promote <id/username>` - Allow a user to use this bot's commands.\n"
            "🔹 `/demote <id/username>` - Revoke user's access.\n\n"
            "*(Note: Telegram user accounts cannot send inline buttons, which is why this is a text menu!)*"
        )
        await eor(event, help_text)

    # --- Start Assistant Registration ---
    async with assistant_lock:
        if len(assistant_clients) >= MAX_ACTIVE_CLIENTS:
            await client.disconnect()
            return False
        assistant_clients[bot_username] = {"client": client, "owner_id": owner_id, "last_used": time.time()}

    logger.info("Assistant started: %s", bot_username)
    return True

async def disconnect_assistant(bot_username: str):
    async with assistant_lock:
        info = assistant_clients.pop(bot_username, None)
    if info:
        try:
            await info["client"].disconnect()
        except Exception:
            pass
    db_set_active(bot_username, False)

async def cleanup_idle_clients():
    while True:
        await asyncio.sleep(CLEANUP_INTERVAL)
        now = time.time()
        to_disconnect = []
        async with assistant_lock:
            for uname, info in list(assistant_clients.items()):
                if now - info.get("last_used", 0) > CLIENT_IDLE_TIMEOUT:
                    to_disconnect.append(uname)
        for uname in to_disconnect:
            await disconnect_assistant(uname)
            logger.info("Idle assistant disconnected: %s", uname)

# ---------------- UI helpers ----------------
def main_menu_buttons():
    return [
        [Button.inline("➕ Register (Send Token or Session File)", b"register")],
        [Button.inline("🔌 Connect / Disconnect", b"connect_menu")],
        [Button.inline("📝 Manage bots", b"manage_menu")],
    ]

def bot_action_buttons(bot_username: str):
    return [
        [Button.inline("Connect", f"connect:{bot_username}"), Button.inline("Disconnect", f"disconnect:{bot_username}")],
        [Button.inline("Remove Session", f"remove:{bot_username}")],
        [Button.inline("Back", b"back_main")]
    ]

# ---------------- Master commands ----------------
@master.on(events.NewMessage(pattern=r"^/start$|^/menu$"))
async def start_cmd(event):
    if db_is_banned(event.sender_id): return
    await event.reply("Welcome — Manage your evaluation userbots here.", buttons=main_menu_buttons())

@master.on(events.NewMessage(pattern=r"^/status$"))
async def status_cmd(event):
    if db_is_banned(event.sender_id): return
    async with assistant_lock:
        active = len(assistant_clients)
    cur = db.cursor()
    cur.execute("SELECT COUNT(*) FROM bots")
    total = cur.fetchone()[0]
    await event.reply(f"Master status\nActive Eval Clients: {active}\nTotal Registered: {total}")

# ---------------- Interactive Handler (Session/Token Upload) ----------------
@master.on(events.NewMessage(incoming=True))
async def generic_handler(event):
    uid = event.sender_id
    if db_is_banned(uid): return

    state_info = user_states.get(uid, {})
    if state_info.get("state") == "await_session":
        temp_path = os.path.join(SESSIONS_DIR, f"temp_{uid}_{int(time.time())}.session")
        
        if event.text and ":" in event.text:
            # User sent a Bot Token
            msg = await event.reply("⚙️ Generating session via API...")
            success = generate_session_via_api(event.text.strip(), temp_path)
            if not success:
                return await msg.edit("❌ Failed to generate session via API. Please check your Bot Token.")
            await msg.edit("✅ Session generated. Validating...")
        
        elif event.file:
            # User sent a Session File
            if not getattr(event.file, "name", "").endswith(".session"):
                return await event.reply("Please upload a `.session` file or send a Bot Token.")
            msg = await event.reply("📥 Downloading and validating session file...")
            await event.message.download_media(file=temp_path)
        
        else:
            return await event.reply("Please upload a `.session` file or send a valid Bot Token (e.g., `1234:ABC...`).")
        
        try:
            temp_client = TelegramClient(temp_path, API_ID, API_HASH)
            await temp_client.connect()
            if not await temp_client.is_user_authorized():
                raise Exception("Session is invalid or revoked.")
            
            me = await temp_client.get_me()
            bot_username = f"@{me.username or me.id}"
            await temp_client.disconnect()
            
            final_path = session_path_for_username(bot_username)
            if os.path.exists(final_path):
                os.remove(final_path)
            os.rename(temp_path, final_path)

            db_add_bot(uid, bot_username)
            success = await create_and_start_assistant(bot_username, uid)
            
            if success:
                db_set_active(bot_username, True)
                await msg.edit(f"✅ Registered {bot_username} successfully!\nYou can now use `.val`, `.bash` and `/help` from that account.")
                await send_to_log_channel(f"Master: User {uid} registered {bot_username}.")
            else:
                await msg.edit("Session valid, but failed to start client.")
                
        except Exception as e:
            if os.path.exists(temp_path): os.remove(temp_path)
            await msg.edit(f"Error: {str(e)}")
            
        finally:
            user_states.pop(uid, None)

# ---------------- CallbackQuery handlers ----------------
@master.on(events.CallbackQuery)
async def callback_handler(event):
    data = event.data.decode()
    uid = event.sender_id
    if db_is_banned(uid): return

    if data == "register":
        user_states[uid] = {"state": "await_session", "tmp": {}}
        return await event.edit("📤 **Please send your Bot Token** or upload your `.session` file now.")

    if data == "connect_menu":
        bots = db_get_bots_for_owner(uid)
        if not bots:
            return await event.answer("No registered bots", alert=True)
        rows = [[Button.inline(b, f"showbot:{b}")] for b in bots]
        rows.append([Button.inline("Back", b"back_main")])
        return await event.edit("Select your session account:", buttons=rows)

    if data.startswith("showbot:"):
        bot_username = data.split(":", 1)[1]
        rec = db_get_bot_record(bot_username)
        if rec and rec["owner_id"] == uid:
            status = "🟢 Active" if rec["active"] else "🔴 Inactive"
            await event.edit(f"**Session:** {bot_username}\n**Status:** {status}", buttons=bot_action_buttons(bot_username))
        return

    if data == "back_main":
        return await event.edit("Main menu:", buttons=main_menu_buttons())

    if data == "manage_menu":
        return await event.edit("Manage:", buttons=[[Button.inline("List my sessions", b"connect_menu")], [Button.inline("Back", b"back_main")]])

    if data.startswith("connect:"):
        bot_username = data.split(":", 1)[1]
        if await create_and_start_assistant(bot_username, uid):
            db_set_active(bot_username, True)
            await event.answer("Connected!", alert=False)
            await event.edit(f"🟢 {bot_username} is now Online.", buttons=main_menu_buttons())
        else:
            await event.answer("Failed to connect", alert=True)
        return

    if data.startswith("disconnect:"):
        bot_username = data.split(":", 1)[1]
        await disconnect_assistant(bot_username)
        await event.answer("Disconnected", alert=False)
        return await event.edit(f"🔴 {bot_username} is now Offline.", buttons=main_menu_buttons())

    if data.startswith("remove:"):
        bot_username = data.split(":", 1)[1]
        await disconnect_assistant(bot_username)
        db_remove_bot(bot_username)
        await event.answer("Removed", alert=False)
        return await event.edit(f"🗑️ {bot_username} removed.", buttons=main_menu_buttons())

# ---------------- Load registered bots on startup ----------------
async def load_registered_bots():
    cur = db.cursor()
    cur.execute("SELECT bot_username, owner_id FROM bots WHERE active=1")
    for bot_username, owner_id in cur.fetchall():
        await create_and_start_assistant(bot_username, owner_id)
        await asyncio.sleep(0.1)

async def main():
    # Handle Master Session Generation automatically using the API
    sess_file = MASTER_BOT_SESSION
    if not sess_file.endswith(".session"):
        sess_file += ".session"
    
    if not os.path.exists(sess_file):
        logger.info(f"Master session not found. Generating via Render API with token: {MASTER_BOT_TOKEN[:10]}...")
        success = generate_session_via_api(MASTER_BOT_TOKEN, sess_file)
        if success:
            logger.info("Successfully generated master session.")
        else:
            logger.error("Failed to generate master session. Ensure the MASTER_BOT_TOKEN is correct.")

    await master.start(bot_token=MASTER_BOT_TOKEN)
    logger.info("Master started.")
    asyncio.create_task(load_registered_bots())
    asyncio.create_task(cleanup_idle_clients())
    await master.run_until_disconnected()

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