import os
import re
import sys
import json
import asyncio
import logging
import tempfile
import time
import collections
from datetime import datetime
from urllib.parse import urlparse, unquote
from pathlib import Path
from dotenv import load_dotenv
import psutil

from pyrogram import Client, filters
from pyrogram.types import Message

load_dotenv()

API_ID    = int(os.getenv("API_ID", "0"))
API_HASH  = os.getenv("API_HASH", "").strip()
BOT_TOKEN = os.getenv("BOT_TOKEN", "").strip()
RCLONE_REMOTE    = "gdrive:"

def classify_to_folder(file_name: str, mime_type: str = "") -> str:
    ext = file_name.rsplit(".", 1)[-1].lower() if "." in file_name else ""
    if mime_type.startswith("video/") or ext in ("mp4","mkv","avi","mov","webm","flv"):
        return "Videos"
    if mime_type.startswith("audio/") or ext in ("mp3","flac","wav","ogg","m4a","aac"):
        return "Music"
    if mime_type.startswith("image/") or ext in ("jpg","jpeg","png","gif","webp","bmp","heic"):
        return "Photos"
    if ext in ("exe","msi","deb","rpm","dmg","appimage"):
        return "Software"
    if ext in ("zip","rar","7z","tar","gz","bz2","xz","zst"):
        return "Archives"
    if ext == "gguf" or ext in ("safetensors","pt","ckpt","pth"):
        return "Models"
    if ext == "zim":
        return "ZIM"
    if ext in ("conf","ovpn","cfg","ini"):
        return "Config"
    if ext in ("pdf","doc","docx","txt","md","csv","xlsx","pptx"):
        return "Docs"
    if ext == "bin":
        return "Bin"
    return "Other"

LOG_FILE         = Path(__file__).parent / "bot.log"
USERS_FILE       = Path(__file__).parent / "authorized_users.json"

STREAM_THRESHOLD = 2 * (1 << 30)   # 2 GB
QUOTAS_FILE      = Path(__file__).parent / "quotas.json"

# ── Persisted authorized users ────────────────────────────────────────────────

def _load_users() -> set:
    try:
        return set(json.loads(USERS_FILE.read_text()))
    except Exception:
        return {"coaxys"}

def _save_users(users: set):
    USERS_FILE.write_text(json.dumps(sorted(users)))

AUTHORIZED_USERS: set = _load_users()

# ── Quota system ──────────────────────────────────────────────────────────────
# quotas.json schema:
#   { "quotas": {"username": <bytes>}, "usage": {"username": {"YYYY-MM-DD": <bytes>}} }

def _load_quotas() -> dict:
    try:
        return json.loads(QUOTAS_FILE.read_text())
    except Exception:
        return {"quotas": {}, "usage": {}}

def _save_quotas(data: dict):
    QUOTAS_FILE.write_text(json.dumps(data, indent=2))

def parse_size(s: str) -> int | None:
    """Parse '5GB', '500MB', '2.5GB', '100KB' → bytes. Returns None on failure."""
    m = re.fullmatch(r'([\d.]+)\s*(B|KB|MB|GB|TB)', s.strip(), re.IGNORECASE)
    if not m:
        return None
    n, unit = float(m.group(1)), m.group(2).upper()
    mul = {"B": 1, "KB": 1<<10, "MB": 1<<20, "GB": 1<<30, "TB": 1<<40}
    return int(n * mul[unit])

def today() -> str:
    return datetime.utcnow().strftime("%Y-%m-%d")

def get_quota(username: str) -> int | None:
    """Daily quota in bytes, or None if not set."""
    return _load_quotas()["quotas"].get(username.lower())

def get_usage_today(username: str) -> int:
    return _load_quotas()["usage"].get(username.lower(), {}).get(today(), 0)

def quota_remaining(username: str) -> int | None:
    """Returns remaining bytes today, or None if no quota set."""
    q = get_quota(username)
    if q is None:
        return None
    return max(0, q - get_usage_today(username))

def record_upload(username: str, size_bytes: int):
    """Add size_bytes to today's usage for username."""
    data = _load_quotas()
    u    = username.lower()
    data["usage"].setdefault(u, {})
    data["usage"][u][today()] = data["usage"][u].get(today(), 0) + size_bytes
    _save_quotas(data)

def has_upload_access(message: Message) -> tuple[bool, str]:
    """
    Returns (allowed, reason).
    Auth users always pass. Others need a quota with remaining bytes.
    """
    u = (message.from_user.username or "").lower() if message.from_user else ""
    if u in AUTHORIZED_USERS:
        return True, "auth"
    q = get_quota(u)
    if q is None:
        return False, "no_access"
    rem = quota_remaining(u)
    if rem == 0:
        return False, "quota_exceeded"
    return True, "quota"

BOT_START_TIME  = time.time()
session_uploads = 0

logging.basicConfig(
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    level=logging.INFO
)
logger = logging.getLogger(__name__)

app = Client(
    "gdrive_bot",
    api_id=API_ID,
    api_hash=API_HASH,
    bot_token=BOT_TOKEN,
)

MEDIA_TYPES = (
    "document", "video", "audio", "voice",
    "photo", "animation", "video_note", "sticker"
)

URL_RE = re.compile(r'https?://\S+', re.IGNORECASE)

# ── Utilities ─────────────────────────────────────────────────────────────────

def get_media(message: Message):
    for attr in MEDIA_TYPES:
        m = getattr(message, attr, None)
        if m:
            return attr, m
    return None, None

def sanitize_filename(name: str) -> str:
    """Clean up filenames from bots/channels: strip emoji, newlines, garbage chars."""
    # Normalise unicode (NFKC collapses weird lookalikes)
    import unicodedata
    name = unicodedata.normalize("NFKC", name)
    # Control chars and newlines → space
    name = re.sub(r'[\x00-\x1f\x7f]', ' ', name)
    # Common garbage from forwarded bot messages
    name = name.replace('→', '').replace('↵', '').replace('␊', '')
    # Characters illegal in filenames on most filesystems
    name = re.sub(r'[<>:"/\\|?*]', '_', name)
    # Emoji: remove everything in supplementary Unicode planes (U+1F000+) and misc symbol blocks
    name = re.sub(
        r'[\U0001F000-\U0010FFFF'   # supplementary planes — most emoji live here
        r'☀-➿'            # misc symbols, dingbats
        r'⌀-⏿'            # misc technical
        r'︀-️'            # variation selectors
        r'​-‏'            # zero-width / directional chars
        r' -]',          # general punctuation extras
        '', name, flags=re.UNICODE
    )
    # Collapse runs of whitespace/underscores to a single underscore
    name = re.sub(r'[\s_]+', '_', name).strip('_. ')
    # Truncate stem to 180 chars but keep extension intact
    root, ext = os.path.splitext(name)
    root = root[:180].rstrip('_. ')
    name = (root + ext).strip()
    # Final fallback
    return name or f"file_{datetime.now().strftime('%Y%m%d_%H%M%S')}"

def resolve_filename(media_type: str, media, caption: str | None) -> str:
    # Caption overrides — rename before upload
    if caption and caption.strip():
        name = caption.strip()
        orig = getattr(media, "file_name", None)
        if orig and "." in orig and "." not in name:
            name += os.path.splitext(orig)[1]
        return sanitize_filename(name)
    name = getattr(media, "file_name", None)
    if name:
        return sanitize_filename(name)
    ext = {
        "photo": ".jpg", "voice": ".ogg", "video_note": ".mp4",
        "sticker": ".webp", "animation": ".mp4", "video": ".mp4", "audio": ".mp3",
    }
    return f"file_{datetime.now().strftime('%Y%m%d_%H%M%S')}{ext.get(media_type, '.bin')}"

def filename_from_url(url: str) -> str:
    path = unquote(urlparse(url).path)
    name = os.path.basename(path.rstrip("/"))
    if not name or "." not in name:
        name = f"download_{datetime.now().strftime('%Y%m%d_%H%M%S')}.bin"
    return sanitize_filename(name)

def fmt_size(b: int) -> str:
    if b >= 1 << 30: return f"{b / (1<<30):.2f} GB"
    if b >= 1 << 20: return f"{b / (1<<20):.1f} MB"
    if b >= 1 << 10: return f"{b / (1<<10):.1f} KB"
    return f"{b} B"

def fmt_dur(s: float) -> str:
    s = int(s)
    if s < 60:   return f"{s}s"
    if s < 3600: return f"{s//60}m {s%60:02d}s"
    return f"{s//3600}h {(s%3600)//60}m"

def fmt_ram() -> str:
    vm = psutil.virtual_memory()
    return f"{fmt_size(vm.used)} / {fmt_size(vm.total)} ({vm.percent:.0f}%)"

def spd(bps: float) -> str:
    return f"{fmt_size(int(bps))}/s" if bps > 0 else "—"

def choose_chunk(file_bytes: int) -> str:
    if file_bytes == 0:             return "256M"
    if file_bytes <  10 * (1<<20):  return "8M"
    if file_bytes < 100 * (1<<20):  return "64M"
    if file_bytes < 500 * (1<<20):  return "256M"
    return "512M"

async def get_drive_file_id(file_name: str) -> str | None:
    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "lsjson", RCLONE_REMOTE,
            "--recursive", "--files-only",
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, _ = await proc.communicate()
        files = json.loads(out.decode())
        for f in files:
            if f["Name"] == file_name:
                return f["ID"]
        return None
    except Exception as e:
        logger.warning(f"lsjson: {e}")
        return None

async def send_links(message: Message, file_name: str):
    file_id = await get_drive_file_id(file_name)
    if file_id:
        dl   = f"https://drive.google.com/uc?export=download&id={file_id}"
        view = f"https://drive.google.com/file/d/{file_id}/view"
        wget = f"wget -O \"{file_name}\" \"{dl}\""
        await message.reply_text(
            f"🔗 **Links**\n\n"
            f"📥 **Direct download:**\n`{dl}`\n\n"
            f"👁 **View on Drive:**\n`{view}`\n\n"
            f"🖥 **wget:**\n`{wget}`",
            disable_web_page_preview=True,
        )

# ── Auth ──────────────────────────────────────────────────────────────────────

def is_authorized(message: Message) -> bool:
    u = message.from_user
    if not u:
        return False
    return (u.username or "").lower() in AUTHORIZED_USERS

async def deny(message: Message):
    await message.reply_text("⛔ You're not authorized to use this command.")

# ── /start ────────────────────────────────────────────────────────────────────

@app.on_message(filters.command("start"))
async def cmd_start(client: Client, message: Message):
    vm = psutil.virtual_memory()
    await message.reply_text(
        "**GDrive Upload Bot** ⚡\n\n"
        f"🖥 RAM: {fmt_size(vm.available)} free · 📡 MTProto + rclone\n\n"
        "━━━━━━━━━━━━━━━━━━━━\n\n"
        "**Send a file:**\n"
        "📄 Documents  🖼 Photos  🎬 Videos\n"
        "🎵 Audio  🎤 Voice  📹 Video notes  😀 Stickers\n\n"
        "**Send a URL:**\n"
        "🌐 Paste any http:// or https:// link — I'll download and upload it for you.\n\n"
        "**✏️ Rename before upload:**\n"
        "Add a caption to any file to rename it on Drive.\n"
        "_Example: send a video with caption_ `lecture_01.mp4`\n\n"
        "**🔗 Direct download links:**\n"
        "After every upload I send a wget-ready link so you can pull the file anywhere.\n\n"
        "No file size limit — uses MTProto for large Telegram downloads.\n\n"
        "━━━━━━━━━━━━━━━━━━━━\n"
        "Made by @Coaxys"
    )

# ── /list ────────────────────────────────────────────────────────────────────

@app.on_message(filters.command("list"))
async def cmd_list(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    wait = await message.reply_text("📂 Fetching latest files from Drive...")

    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "lsjson", RCLONE_REMOTE,
            "--recursive", "--files-only",
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, err = await proc.communicate()
        if proc.returncode != 0:
            raise RuntimeError(err.decode().strip())

        files = json.loads(out.decode())
        files.sort(key=lambda x: x["ModTime"], reverse=True)
        top   = files[:10]
        total = len(files)

        lines = []
        for i, f in enumerate(top, 1):
            size = f["Size"]
            if size >= 1<<30:   s = f"{size/(1<<30):.2f} GB"
            elif size >= 1<<20: s = f"{size/(1<<20):.1f} MB"
            elif size >= 1<<10: s = f"{size/(1<<10):.1f} KB"
            else:               s = f"{size} B"
            date = f["ModTime"][:10]
            name = f["Name"]
            if len(name) > 40:
                name = name[:37] + "..."
            fid    = f["ID"]
            folder = f["Path"].split("/")[0] if "/" in f["Path"] else "root"
            link   = f"https://drive.google.com/file/d/{fid}/view"
            lines.append(f"`{i:2}.` [{name}]({link})\n     📁 {folder}  ·  📦 {s}  ·  📅 {date}")

        body = "\n\n".join(lines)
        await wait.edit_text(
            f"📂 **Latest {len(top)} of {total} files in Drive**\n\n{body}",
            disable_web_page_preview=True,
        )

    except Exception as e:
        logger.error(f"/list error: {e}")
        await wait.edit_text(f"❌ Failed to fetch file list\n\n`{e}`")

# ── /listall ─────────────────────────────────────────────────────────────────

@app.on_message(filters.command("listall"))
async def cmd_listall(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    wait = await message.reply_text("📂 Fetching all files from Drive...")

    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "lsjson", RCLONE_REMOTE,
            "--recursive", "--files-only",
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, err = await proc.communicate()
        if proc.returncode != 0:
            raise RuntimeError(err.decode().strip())

        files = json.loads(out.decode())
        files.sort(key=lambda x: x["ModTime"], reverse=True)

        if not files:
            return await wait.edit_text("📂 Drive is empty.")

        total_size = sum(f["Size"] for f in files)

        def human(b):
            if b >= 1<<30:   return f"{b/(1<<30):.2f} GB"
            if b >= 1<<20:   return f"{b/(1<<20):.1f} MB"
            if b >= 1<<10:   return f"{b/(1<<10):.1f} KB"
            return f"{b} B"

        # Build lines and split into ≤4000-char pages
        header = (
            f"📂 **All files in Drive** ({len(files)} files · {human(total_size)} total)\n"
            f"{'━'*22}\n\n"
        )

        pages   = []
        current = header
        for i, f in enumerate(files, 1):
            name = f["Name"]
            disp = name if len(name) <= 45 else name[:42] + "..."
            link = f"https://drive.google.com/file/d/{f['ID']}/view"
            line = f"`{i:3}.` [{disp}]({link})\n       📦 {human(f['Size'])}  ·  📅 {f['ModTime'][:10]}\n\n"

            if len(current) + len(line) > 4000:
                pages.append(current)
                current = line
            else:
                current += line

        if current.strip():
            pages.append(current)

        # Edit first message, send rest as new replies
        await wait.edit_text(
            pages[0] + (f"\n_Page 1 of {len(pages)}_" if len(pages) > 1 else ""),
            disable_web_page_preview=True,
        )
        for idx, page in enumerate(pages[1:], 2):
            await message.reply_text(
                page + f"\n_Page {idx} of {len(pages)}_",
                disable_web_page_preview=True,
            )

    except Exception as e:
        logger.error(f"/listall error: {e}")
        await wait.edit_text(f"❌ Failed to fetch file list\n\n`{e}`")

# ── /status ───────────────────────────────────────────────────────────────────

@app.on_message(filters.command("status"))
async def cmd_status(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    uptime = time.time() - BOT_START_TIME
    vm     = psutil.virtual_memory()
    disk   = psutil.disk_usage("/")
    cpu    = psutil.cpu_percent(interval=0.5)

    def bar(pct: float, width: int = 10) -> str:
        filled = int(pct / 100 * width)
        return "█" * filled + "░" * (width - filled)

    await message.reply_text(
        f"📊 **Bot Status**\n\n"
        f"⏱ **Uptime:** {fmt_dur(uptime)}\n"
        f"📤 **Uploads this session:** {session_uploads}\n\n"
        f"🖥 **CPU:** {cpu:.1f}%  `[{bar(cpu)}]`\n\n"
        f"💾 **RAM:**\n"
        f"  Used:  {fmt_size(vm.used)} / {fmt_size(vm.total)}\n"
        f"  Free:  {fmt_size(vm.available)}\n"
        f"  `[{bar(vm.percent)}]` {vm.percent:.1f}%\n\n"
        f"🗄 **Disk (/):**\n"
        f"  Used:  {fmt_size(disk.used)} / {fmt_size(disk.total)}\n"
        f"  Free:  {fmt_size(disk.free)}\n"
        f"  `[{bar(disk.percent)}]` {disk.percent:.1f}%\n\n"
        f"📡 **Method:** MTProto + rclone\n"
        f"🔀 **Stream threshold:** ≥ 2 GB"
    )

# ── /setquota ────────────────────────────────────────────────────────────────

@app.on_message(filters.command("setquota"))
async def cmd_setquota(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    parts = message.command
    if len(parts) < 3:
        return await message.reply_text(
            "Usage: `/setquota @username <size>`\n"
            "Examples: `/setquota @john 5GB` · `/setquota @john 500MB`"
        )

    username   = parts[1].lstrip("@").lower()
    size_bytes = parse_size(parts[2])
    if size_bytes is None:
        return await message.reply_text(
            "❌ Invalid size. Use formats like `5GB`, `500MB`, `2.5GB`, `100KB`."
        )

    data = _load_quotas()
    data["quotas"][username] = size_bytes
    _save_quotas(data)
    logger.info(f"Quota set: {username} → {fmt_size(size_bytes)}/day")
    await message.reply_text(
        f"✅ Daily quota set for `@{username}`\n\n"
        f"📦 **Limit:** {fmt_size(size_bytes)} / day\n"
        f"🔄 Resets at midnight UTC"
    )

# ── /clearquota ───────────────────────────────────────────────────────────────

@app.on_message(filters.command("clearquota"))
async def cmd_clearquota(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    parts = message.command
    if len(parts) < 2:
        return await message.reply_text("Usage: `/clearquota @username`")

    username = parts[1].lstrip("@").lower()
    data     = _load_quotas()

    if username not in data["quotas"]:
        return await message.reply_text(f"ℹ️ `@{username}` has no quota set.")

    del data["quotas"][username]
    data["usage"].pop(username, None)
    _save_quotas(data)
    logger.info(f"Quota cleared: {username}")
    await message.reply_text(f"✅ Quota and usage history cleared for `@{username}`.")

# ── /quotas ───────────────────────────────────────────────────────────────────

@app.on_message(filters.command("quotas"))
async def cmd_quotas(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    data = _load_quotas()
    if not data["quotas"]:
        return await message.reply_text("📋 No quotas configured yet.\n\nUse `/setquota @user <size>` to add one.")

    lines = []
    for username, limit in sorted(data["quotas"].items()):
        used      = get_usage_today(username)
        remaining = max(0, limit - used)
        pct       = used / limit * 100 if limit else 0
        bar_n     = int(pct / 10)
        bar       = "█" * bar_n + "░" * (10 - bar_n)
        lines.append(
            f"👤 `@{username}`\n"
            f"  `[{bar}]` {pct:.1f}%\n"
            f"  📦 Used: {fmt_size(used)} / {fmt_size(limit)}\n"
            f"  ✅ Left: {fmt_size(remaining)}"
        )

    await message.reply_text(
        f"📋 **Quota Overview** — {today()} UTC\n\n"
        + "\n\n".join(lines) +
        "\n\n🔄 Resets at midnight UTC"
    )

# ── /myquota ──────────────────────────────────────────────────────────────────

@app.on_message(filters.command("myquota"))
async def cmd_myquota(client: Client, message: Message):
    u = (message.from_user.username or "").lower() if message.from_user else ""
    if not u:
        return await message.reply_text("❌ Could not determine your username.")

    if u in AUTHORIZED_USERS:
        return await message.reply_text("✅ You're an **authorized user** — no quota limits apply to you.")

    limit = get_quota(u)
    if limit is None:
        return await message.reply_text("🔒 You don't have a quota assigned. Contact an admin.")

    used      = get_usage_today(u)
    remaining = max(0, limit - used)
    pct       = used / limit * 100 if limit else 0
    bar_n     = int(pct / 10)
    bar       = "█" * bar_n + "░" * (10 - bar_n)

    await message.reply_text(
        f"📊 **Your Quota — {today()} UTC**\n\n"
        f"`[{bar}]` {pct:.1f}%\n\n"
        f"📦 Used:      {fmt_size(used)}\n"
        f"✅ Remaining: {fmt_size(remaining)}\n"
        f"🔒 Daily limit: {fmt_size(limit)}\n\n"
        f"🔄 Resets at midnight UTC"
    )

# ── /share ───────────────────────────────────────────────────────────────────

@app.on_message(filters.command("share"))
async def cmd_share(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    query = " ".join(message.command[1:]).strip()
    if not query:
        return await message.reply_text(
            "Usage: `/share <filename or keyword>`\n\n"
            "Makes the file publicly accessible and returns a shareable link.\n"
            "Tip: partial name works — e.g. `/share Mitm` matches `Mitm-Yt.mp4`"
        )

    wait = await message.reply_text(f"🔍 Looking for `{query}` in Drive...")

    # Find the file by exact or partial name match
    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "lsjson", RCLONE_REMOTE,
            "--recursive", "--files-only",
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, err = await proc.communicate()
        if proc.returncode != 0:
            raise RuntimeError(err.decode().strip())

        files = json.loads(out.decode())
        # Prefer exact match, fall back to partial
        exact   = [f for f in files if f["Name"].lower() == query.lower()]
        partial = [f for f in files if query.lower() in f["Name"].lower()]
        matches = exact or partial

        if not matches:
            return await wait.edit_text(f"❌ No file matching `{query}` found in Drive.")

        if len(matches) > 1 and not exact:
            names = "\n".join(f"• `{f['Name']}`" for f in matches[:8])
            more  = f"\n_…and {len(matches)-8} more_" if len(matches) > 8 else ""
            return await wait.edit_text(
                f"⚠️ **Multiple matches for** `{query}`\n\n{names}{more}\n\n"
                f"Be more specific to share a single file."
            )

        target = matches[0]
        name   = target["Name"]
        path   = target["Path"]   # includes subfolder, e.g. "Videos/filename.mp4"
        size   = target["Size"]

    except Exception as e:
        logger.error(f"/share lookup error: {e}")
        return await wait.edit_text(f"❌ Drive lookup failed\n\n`{e}`")

    await wait.edit_text(f"🔗 Making `{name}` public...")

    # Generate share link via rclone link
    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "link", f"{RCLONE_REMOTE}{path}",
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, err = await proc.communicate()
        if proc.returncode != 0:
            raise RuntimeError(err.decode().strip() or out.decode().strip())

        share_url = out.decode().strip()
        file_id   = share_url.split("id=")[-1] if "id=" in share_url else None

    except Exception as e:
        logger.error(f"/share rclone link error: {e}")
        return await wait.edit_text(f"❌ Failed to generate share link\n\n`{e}`")

    def human(b):
        if b >= 1<<30:   return f"{b/(1<<30):.2f} GB"
        if b >= 1<<20:   return f"{b/(1<<20):.1f} MB"
        if b >= 1<<10:   return f"{b/(1<<10):.1f} KB"
        return f"{b} B"

    dl_link   = f"https://drive.google.com/uc?export=download&id={file_id}" if file_id else None
    wget_line = f"`wget -O \"{name}\" \"{dl_link}\"`" if dl_link else ""

    await wait.edit_text(
        f"✅ **File is now public**\n\n"
        f"📎 **{name}**\n"
        f"📦 {human(size)}\n\n"
        f"🔗 **Share link:**\n`{share_url}`\n\n"
        + (f"📥 **Direct download:**\n`{dl_link}`\n\n" if dl_link else "")
        + (f"🖥 **wget:**\n{wget_line}" if wget_line else ""),
        disable_web_page_preview=True,
    )

# ── /search ───────────────────────────────────────────────────────────────────

@app.on_message(filters.command("search"))
async def cmd_search(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    query = " ".join(message.command[1:]).strip().lower()
    if not query:
        return await message.reply_text("Usage: `/search <filename or keyword>`")

    wait = await message.reply_text(f"🔍 Searching for `{query}`...")

    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "lsjson", RCLONE_REMOTE,
            "--recursive", "--files-only",
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, err = await proc.communicate()
        if proc.returncode != 0:
            raise RuntimeError(err.decode().strip())

        files = json.loads(out.decode())
        hits  = [f for f in files if query in f["Name"].lower()]
        hits.sort(key=lambda x: x["ModTime"], reverse=True)

        if not hits:
            return await wait.edit_text(f"🔍 No files matching `{query}` found in Drive.")

        lines = []
        for i, f in enumerate(hits[:15], 1):
            size = f["Size"]
            if size >= 1<<30:   s = f"{size/(1<<30):.2f} GB"
            elif size >= 1<<20: s = f"{size/(1<<20):.1f} MB"
            elif size >= 1<<10: s = f"{size/(1<<10):.1f} KB"
            else:               s = f"{size} B"
            name   = f["Name"]
            folder = f["Path"].split("/")[0] if "/" in f["Path"] else "root"
            disp   = name if len(name) <= 38 else name[:35] + "..."
            link   = f"https://drive.google.com/file/d/{f['ID']}/view"
            lines.append(
                f"`{i:2}.` [{disp}]({link})\n"
                f"     📁 {folder}  ·  📦 {s}  ·  📅 {f['ModTime'][:10]}"
            )

        more = f"\n\n_…and {len(hits)-15} more_" if len(hits) > 15 else ""
        await wait.edit_text(
            f"🔍 **{len(hits)} result(s) for** `{query}`\n\n" + "\n\n".join(lines) + more,
            disable_web_page_preview=True,
        )
    except Exception as e:
        logger.error(f"/search error: {e}")
        await wait.edit_text(f"❌ Search failed\n\n`{e}`")

# ── /adduser & /removeuser ────────────────────────────────────────────────────

@app.on_message(filters.command("adduser"))
async def cmd_adduser(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    parts = message.command
    if len(parts) < 2:
        return await message.reply_text("Usage: `/adduser <username>`")

    username = parts[1].lstrip("@").lower()
    if username in AUTHORIZED_USERS:
        return await message.reply_text(f"ℹ️ `@{username}` is already authorized.")

    AUTHORIZED_USERS.add(username)
    _save_users(AUTHORIZED_USERS)
    logger.info(f"Added authorized user: {username}")
    await message.reply_text(f"✅ `@{username}` added to authorized users.")

@app.on_message(filters.command("removeuser"))
async def cmd_removeuser(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    parts = message.command
    if len(parts) < 2:
        return await message.reply_text("Usage: `/removeuser <username>`")

    username = parts[1].lstrip("@").lower()
    if username not in AUTHORIZED_USERS:
        return await message.reply_text(f"ℹ️ `@{username}` is not in the authorized list.")

    AUTHORIZED_USERS.discard(username)
    _save_users(AUTHORIZED_USERS)
    logger.info(f"Removed authorized user: {username}")
    await message.reply_text(f"✅ `@{username}` removed from authorized users.")

# ── /logs ─────────────────────────────────────────────────────────────────────

@app.on_message(filters.command("logs"))
async def cmd_logs(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    try:
        lines = LOG_FILE.read_text(errors="replace").splitlines()
        tail  = "\n".join(lines[-50:])
        # Send as file if content is large, otherwise inline
        if len(tail) > 3800:
            with tempfile.NamedTemporaryFile("w", suffix=".log",
                                             delete=False, prefix="botlog_") as f:
                f.write(tail)
                tmp = f.name
            await message.reply_document(tmp, caption="📄 Last 50 log lines")
            os.remove(tmp)
        else:
            await message.reply_text(f"📄 **Last 50 log lines**\n\n```\n{tail}\n```")
    except Exception as e:
        await message.reply_text(f"❌ Could not read log\n\n`{e}`")

# ── /restart ──────────────────────────────────────────────────────────────────

@app.on_message(filters.command("restart"))
async def cmd_restart(client: Client, message: Message):
    if not is_authorized(message):
        return await deny(message)

    await message.reply_text("♻️ Restarting bot... brb.")
    logger.info("Restart requested via /restart")

    async def do_restart():
        await asyncio.sleep(1)
        await client.stop()
        os.execv(sys.executable, [sys.executable] + sys.argv)

    asyncio.create_task(do_restart())

# ── /help ─────────────────────────────────────────────────────────────────────

@app.on_message(filters.command("help"))
async def cmd_help(client: Client, message: Message):
    auth_note = (
        "\n✅ You are an **authorized user**."
        if is_authorized(message) else
        "\n🔒 Commands require authorization to run."
    )
    await message.reply_text(
        "**GDrive Bot — Commands**\n\n"
        "━━━━━━━━━━━━━━━━━━━━\n"
        "📂 **File & Transfer**\n"
        "`/list` — Show the 10 most recent files in the Drive folder\n"
        "`/listall` — List **every** file in the Drive folder (paginated)\n"
        "`/search <query>` — Search files by name or keyword\n"
        "`/share <filename>` — Make a file public and get a shareable link\n\n"
        "📊 **Info**\n"
        "`/status` — Bot uptime, RAM, CPU, disk usage\n"
        "`/logs` — Tail the last 50 lines of the bot log\n\n"
        "👤 **User Management**\n"
        "`/adduser <@username>` — Grant full (unlimited) upload access\n"
        "`/removeuser <@username>` — Revoke full access\n\n"
        "📊 **Quotas** _(for non-auth users)_\n"
        "`/setquota @user <size>` — Set a daily upload quota (e.g. `5GB`, `500MB`)\n"
        "`/clearquota @user` — Remove quota and reset usage\n"
        "`/quotas` — Overview of all quotas and today's usage\n"
        "`/myquota` — Check your own quota (any user)\n\n"
        "⚙️ **System**\n"
        "`/restart` — Gracefully restart the bot\n"
        "`/help` — Show this message\n"
        "`/start` — Show upload instructions\n\n"
        "━━━━━━━━━━━━━━━━━━━━\n"
        "**How to upload:**\n"
        "📁 Send any file  ·  🌐 Paste a URL  ·  ✏️ Add caption to rename\n\n"
        "Made by @Coaxys"
        + auth_note
    )

# ── URL handler ───────────────────────────────────────────────────────────────

@app.on_message(filters.text & ~filters.command(
    ["start", "help", "list", "listall", "status", "search", "share",
     "adduser", "removeuser", "logs", "restart",
     "setquota", "clearquota", "quotas", "myquota"]
))
async def handle_url(client: Client, message: Message):
    allowed, reason = has_upload_access(message)
    if not allowed:
        if reason == "quota_exceeded":
            u = (message.from_user.username or "").lower()
            limit = get_quota(u)
            await message.reply_text(
                f"🚫 **Daily quota exceeded**\n\n"
                f"You've used your full {fmt_size(limit)} for today.\n"
                f"🔄 Resets at midnight UTC."
            )
        return
    match = URL_RE.search(message.text or "")
    if not match:
        return

    url       = match.group(0).rstrip(".,;)")
    file_name = filename_from_url(url)
    chunk     = "512M"   # URL downloads: always use max chunks
    total_start = time.time()

    status = await message.reply_text(
        f"🌐 **URL received**\n\n"
        f"`{url}`\n\n"
        f"📎 Saving as: **{file_name}**\n"
        f"🧩 Chunk: {chunk}\n\n"
        f"⏳ Starting rclone stream (URL → RAM → Drive)..."
    )

    folder = classify_to_folder(file_name)
    rclone_cmd = [
        "rclone", "copyurl", url,
        f"{RCLONE_REMOTE}{folder}/{file_name}",
        "--drive-chunk-size", chunk,
        "--buffer-size", "512M",
    ]

    try:
        proc = await asyncio.create_subprocess_exec(
            *rclone_cmd,
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
    except Exception as e:
        await status.edit_text(f"❌ **rclone failed to start**\n\n`{e}`")
        return

    # Pulse-update while rclone works (copyurl gives no byte-level progress)
    start_ts   = time.time()
    dots       = ["⠋","⠙","⠹","⠸","⠼","⠴","⠦","⠧","⠇","⠏"]
    dot_i      = 0
    done_event = asyncio.Event()

    async def pulse():
        nonlocal dot_i
        while not done_event.is_set():
            elapsed = time.time() - start_ts
            try:
                await status.edit_text(
                    f"🌐 **Downloading & uploading...**\n\n"
                    f"`{url}`\n\n"
                    f"📎 **{file_name}**\n"
                    f"{dots[dot_i % len(dots)]} Elapsed: {fmt_dur(elapsed)}\n\n"
                    f"🧩 Chunk: {chunk}  ·  💾 Disk: **0 B**\n"
                    f"🖥 RAM: {fmt_ram()}"
                )
            except Exception:
                pass
            dot_i += 1
            await asyncio.sleep(4)

    pulse_task = asyncio.create_task(pulse())
    out, err   = await proc.communicate()
    done_event.set()
    pulse_task.cancel()
    try:
        await pulse_task
    except asyncio.CancelledError:
        pass

    total_elapsed = time.time() - total_start

    if proc.returncode != 0:
        error = err.decode().strip() or out.decode().strip()
        logger.error(f"rclone copyurl failed: {error}")
        await status.edit_text(
            f"❌ **URL download failed**\n\n"
            f"`{url}`\n\n"
            f"💬 `{error}`"
        )
        return

    global session_uploads
    session_uploads += 1
    await status.edit_text(
        f"✅ **Done!**\n\n"
        f"📎 **{file_name}**\n"
        f"🌐 Source: `{url[:60]}{'...' if len(url)>60 else ''}`\n\n"
        f"🕐 Total: {fmt_dur(total_elapsed)}  ·  💾 Disk: **0 B**\n"
        f"📁 → **Google Drive / {folder}**"
    )

    await send_links(message, file_name)

# ── File handler ──────────────────────────────────────────────────────────────

@app.on_message(filters.media)
async def handle_file(client: Client, message: Message):
    allowed, reason = has_upload_access(message)
    if not allowed:
        if reason == "quota_exceeded":
            u = (message.from_user.username or "").lower()
            limit = get_quota(u)
            await message.reply_text(
                f"🚫 **Daily quota exceeded**\n\n"
                f"You've used your full {fmt_size(limit)} for today.\n"
                f"🔄 Resets at midnight UTC."
            )
        return
    media_type, media = get_media(message)
    if not media:
        return

    caption     = (message.caption or "").strip() or None
    file_name   = resolve_filename(media_type, media, caption)
    raw_size    = getattr(media, "file_size", 0) or 0
    size_str    = fmt_size(raw_size) if raw_size else "unknown"
    mime        = getattr(media, "mime_type", None) or media_type
    dc_id       = getattr(media, "dc_id", None)
    dc_note     = f"DC{dc_id}" if dc_id else "DC?"
    chunk_label = choose_chunk(raw_size)
    use_stream  = raw_size >= STREAM_THRESHOLD
    method      = "🌊 RAM stream" if use_stream else "💾 Download → Upload"
    total_start = time.time()

    username    = (message.from_user.username or "").lower() if message.from_user else ""
    rename_note = f"\n✏️ Renamed to: **{file_name}**" if caption else ""

    # Quota pre-check: reject if file would exceed remaining quota
    if username not in AUTHORIZED_USERS and raw_size:
        rem = quota_remaining(username)
        if rem is not None and raw_size > rem:
            return await message.reply_text(
                f"🚫 **Not enough quota**\n\n"
                f"📦 File size:  {fmt_size(raw_size)}\n"
                f"✅ Remaining:  {fmt_size(rem)}\n\n"
                f"🔄 Quota resets at midnight UTC."
            )

    status = await message.reply_text(
        f"📥 **Received**\n\n"
        f"**{file_name}**\n"
        f"📦 {size_str}  ·  🗂 `{mime}`  ·  📡 {dc_note}{rename_note}\n"
        f"🔧 Method: {method}  ·  🧩 Chunk: {chunk_label}\n\n"
        f"⏳ Starting..."
    )

    folder = classify_to_folder(file_name, mime)
    if use_stream:
        await _stream_to_drive(client, message, status, file_name, raw_size,
                               size_str, mime, dc_note, chunk_label, total_start,
                               username=username, folder=folder)
    else:
        await _download_then_upload(client, message, status, file_name, raw_size,
                                    size_str, mime, dc_note, chunk_label, total_start,
                                    username=username, folder=folder)

# ── Method A: download to disk → rclone copy  (< 2 GB) ───────────────────────

async def _download_then_upload(
    client, message, status, file_name, raw_size,
    size_str, mime, dc_note, chunk_label, total_start, username="", folder="Other"
):
    temp_dir   = tempfile.mkdtemp()
    local_path = os.path.join(temp_dir, file_name)

    dl_start  = time.time()
    last_edit = 0.0
    peak_dl   = 0.0
    speed_win = collections.deque(maxlen=6)
    prev_curr = 0

    async def progress(current: int, total: int):
        nonlocal last_edit, peak_dl, prev_curr
        now = time.time()
        if now - last_edit < 3:
            return
        last_edit = now
        elapsed = now - dl_start
        avg = current / elapsed if elapsed > 0 else 0
        speed_win.append(avg)
        peak_dl = max(peak_dl, avg)
        smooth  = sum(speed_win) / len(speed_win)
        pct  = current / total * 100 if total else 0
        eta  = (total - current) / smooth if smooth > 0 else 0
        bar  = "█" * int(pct / 5) + "░" * (20 - int(pct / 5))
        try:
            await status.edit_text(
                f"⬇️ **Downloading**  ·  {dc_note}\n\n"
                f"**{file_name}**\n"
                f"`[{bar}]` **{pct:.1f}%**\n"
                f"📦 {fmt_size(current)} / {fmt_size(total)}\n\n"
                f"⚡ Speed: {spd(smooth)}\n"
                f"🏆 Peak:  {spd(peak_dl)}\n"
                f"⏱ ETA:   {fmt_dur(eta)}  ·  Elapsed: {fmt_dur(elapsed)}\n\n"
                f"🧩 Chunk: {chunk_label}  ·  🖥 RAM: {fmt_ram()}"
            )
        except Exception:
            pass

    MAX_RETRIES   = 3
    RETRY_DELAYS  = [5, 15, 30]
    last_error    = None

    for attempt in range(1, MAX_RETRIES + 1):
        try:
            # Reset progress state for each attempt
            dl_start  = time.time()
            last_edit = 0.0
            peak_dl   = 0.0
            speed_win.clear()

            if attempt > 1:
                try:
                    await status.edit_text(
                        f"🔄 **Retrying download** ({attempt}/{MAX_RETRIES})  ·  {dc_note}\n\n"
                        f"**{file_name}**\n"
                        f"📦 {size_str}\n\n"
                        f"⚠️ Previous error: `{last_error}`\n"
                        f"⏳ Starting attempt {attempt}..."
                    )
                except Exception:
                    pass
                # Clean up partial file from last attempt
                try: os.remove(local_path)
                except Exception: pass

            downloaded = await client.download_media(message, file_name=local_path, progress=progress)
            if not downloaded:
                raise RuntimeError("download_media returned None")
            break   # success — exit retry loop

        except Exception as e:
            last_error = str(e)
            logger.warning(f"Download attempt {attempt}/{MAX_RETRIES} failed: {e}")
            if attempt == MAX_RETRIES:
                logger.error(f"All {MAX_RETRIES} download attempts failed for {file_name}")
                await status.edit_text(
                    f"❌ **Download failed** after {MAX_RETRIES} attempts\n\n"
                    f"**{file_name}**\n\n"
                    f"💬 Last error: `{last_error}`"
                )
                try: os.remove(local_path)
                except Exception: pass
                try: os.rmdir(temp_dir)
                except Exception: pass
                return
            delay = RETRY_DELAYS[attempt - 1]
            try:
                await status.edit_text(
                    f"⚠️ **Connection dropped** (attempt {attempt}/{MAX_RETRIES})  ·  {dc_note}\n\n"
                    f"**{file_name}**\n\n"
                    f"💬 `{last_error}`\n\n"
                    f"⏳ Retrying in {delay}s..."
                )
            except Exception:
                pass
            await asyncio.sleep(delay)

    dl_elapsed = time.time() - dl_start
    avg_dl     = raw_size / dl_elapsed if dl_elapsed > 0 and raw_size else 0

    await status.edit_text(
        f"☁️ **Uploading to Drive...**\n\n"
        f"**{file_name}**\n"
        f"📦 {size_str} downloaded in {fmt_dur(dl_elapsed)} ({spd(avg_dl)})\n\n"
        f"⏳ rclone copying to Google Drive..."
    )

    up_start = time.time()
    try:
        proc = await asyncio.create_subprocess_exec(
            "rclone", "copy", local_path, f"{RCLONE_REMOTE}{folder}/",
            "--drive-chunk-size", chunk_label,
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE,
        )
        out, err = await proc.communicate()
        up_elapsed    = time.time() - up_start
        total_elapsed = time.time() - total_start
        avg_up        = raw_size / up_elapsed if up_elapsed > 0 and raw_size else 0

        if proc.returncode != 0:
            error = err.decode().strip() or out.decode().strip()
            logger.error(f"rclone copy failed: {error}")
            await status.edit_text(
                f"❌ **Upload failed**\n\n**{file_name}**\n\n💬 `{error}`\n\n"
                f"💾 Local copy at:\n`{local_path}`"
            )
            return

        global session_uploads
        session_uploads += 1
        if username and username not in AUTHORIZED_USERS:
            record_upload(username, raw_size or up_elapsed * 1)   # track actual bytes
        quota_note = ""
        if username and username not in AUTHORIZED_USERS:
            rem = quota_remaining(username)
            if rem is not None:
                quota_note = f"\n📊 Quota left today: {fmt_size(rem)}"
        await status.edit_text(
            f"✅ **Done!**\n\n"
            f"**{file_name}**\n"
            f"📦 {size_str}  ·  🗂 `{mime}`\n\n"
            f"📊 **Stats**\n"
            f"⬇️ Download: {fmt_dur(dl_elapsed)} @ {spd(avg_dl)}\n"
            f"☁️ Upload:   {fmt_dur(up_elapsed)} @ {spd(avg_up)}\n"
            f"🕐 Total:    {fmt_dur(total_elapsed)}\n\n"
            f"🧩 Chunk: {chunk_label}  ·  📡 {dc_note}\n"
            f"📁 → **Google Drive / {folder}**{quota_note}"
        )
    except Exception as e:
        logger.error(f"rclone copy error: {e}")
        await status.edit_text(f"❌ **Upload error**\n\n**{file_name}**\n\n💬 `{e}`")
        return
    finally:
        try: os.remove(local_path)
        except Exception: pass
        try: os.rmdir(temp_dir)
        except Exception: pass

    await send_links(message, file_name)

# ── Method B: pure RAM stream via rclone rcat  (≥ 2 GB) ──────────────────────

async def _stream_to_drive(
    client, message, status, file_name, raw_size,
    size_str, mime, dc_note, chunk_label, total_start, username="", folder="Other"
):
    rclone_cmd = [
        "rclone", "rcat", f"{RCLONE_REMOTE}{folder}/{file_name}",
        "--drive-chunk-size", chunk_label,
    ]
    if raw_size:
        rclone_cmd += ["--size", str(raw_size)]

    MAX_RETRIES  = 3
    RETRY_DELAYS = [5, 15, 30]
    last_error   = None
    bytes_sent   = 0
    peak_spd     = 0.0
    stream_start = time.time()

    for attempt in range(1, MAX_RETRIES + 1):
        if attempt > 1:
            delay = RETRY_DELAYS[attempt - 2]
            try:
                await status.edit_text(
                    f"⚠️ **Stream dropped** (attempt {attempt - 1}/{MAX_RETRIES})  ·  {dc_note}\n\n"
                    f"**{file_name}**\n"
                    f"📦 {fmt_size(bytes_sent)} received so far\n\n"
                    f"💬 `{last_error}`\n\n"
                    f"⏳ Retrying from 0% in {delay}s... (stream must restart)"
                )
            except Exception:
                pass
            await asyncio.sleep(delay)
            # Reset counters — stream restarts from beginning
            bytes_sent   = 0
            stream_start = time.time()

        # Launch a fresh rclone process for each attempt
        try:
            rclone = await asyncio.create_subprocess_exec(
                *rclone_cmd,
                stdin=asyncio.subprocess.PIPE,
                stdout=asyncio.subprocess.PIPE,
                stderr=asyncio.subprocess.PIPE,
            )
        except Exception as e:
            logger.error(f"rclone launch failed: {e}")
            await status.edit_text(f"❌ **rclone failed to start**\n\n`{e}`")
            return

        last_edit = 0.0
        speed_win = collections.deque(maxlen=6)
        win_start = stream_start
        win_bytes = 0
        stream_err = None

        try:
            async for chunk in client.stream_media(message):
                rclone.stdin.write(chunk)
                await rclone.stdin.drain()
                bytes_sent += len(chunk)
                win_bytes  += len(chunk)

                now     = time.time()
                win_age = now - win_start
                if win_age >= 3:
                    inst = win_bytes / win_age
                    speed_win.append(inst)
                    peak_spd  = max(peak_spd, inst)
                    win_bytes = 0
                    win_start = now

                avg = sum(speed_win) / len(speed_win) if speed_win else 0

                if now - last_edit >= 3:
                    last_edit = now
                    elapsed   = now - stream_start
                    pct = bytes_sent / raw_size * 100 if raw_size else 0
                    eta = (raw_size - bytes_sent) / avg if avg > 0 and raw_size else 0
                    bar = "█" * int(pct / 5) + "░" * (20 - int(pct / 5))
                    retry_note = f"  ·  🔁 attempt {attempt}/{MAX_RETRIES}" if attempt > 1 else ""
                    try:
                        await status.edit_text(
                            f"🌊 **Streaming**  ·  {dc_note}{retry_note}\n\n"
                            f"**{file_name}**\n"
                            f"`[{bar}]` **{pct:.1f}%**\n"
                            f"📦 {fmt_size(bytes_sent)} / {size_str}\n\n"
                            f"⚡ Speed: {spd(avg)}\n"
                            f"🏆 Peak:  {spd(peak_spd)}\n"
                            f"⏱ ETA:   {fmt_dur(eta)}  ·  Elapsed: {fmt_dur(elapsed)}\n\n"
                            f"🧩 Chunk: {chunk_label}  ·  💾 Disk: **0 B**\n"
                            f"🖥 RAM:   {fmt_ram()}"
                        )
                    except Exception:
                        pass

            rclone.stdin.close()

        except Exception as e:
            stream_err = e
            last_error = str(e)
            logger.warning(f"Stream attempt {attempt}/{MAX_RETRIES} failed: {e}")
            try: rclone.stdin.close()
            except Exception: pass
            try: rclone.kill()
            except Exception: pass

        if stream_err is None:
            break   # stream completed cleanly

        if attempt == MAX_RETRIES:
            await status.edit_text(
                f"❌ **Stream failed** after {MAX_RETRIES} attempts\n\n"
                f"**{file_name}**\n"
                f"📦 {fmt_size(bytes_sent)} received before final failure\n\n"
                f"💬 `{last_error}`"
            )
            return

    stream_elapsed = time.time() - stream_start
    try:
        await status.edit_text(
            f"☁️ **Flushing to Drive API...**\n\n"
            f"**{file_name}**\n"
            f"📦 {fmt_size(bytes_sent)} streamed in {fmt_dur(stream_elapsed)}\n"
            f"⚡ Avg: {spd(bytes_sent / stream_elapsed if stream_elapsed else 0)}"
            f"  ·  🏆 Peak: {spd(peak_spd)}\n\n"
            f"⏳ rclone flushing last {chunk_label} chunk..."
        )
    except Exception:
        pass

    out, err      = await rclone.communicate()
    total_elapsed = time.time() - total_start

    if rclone.returncode != 0:
        error = err.decode().strip() or out.decode().strip()
        logger.error(f"rclone rcat exit {rclone.returncode}: {error}")
        await status.edit_text(
            f"❌ **Drive upload failed**\n\n**{file_name}**\n"
            f"📦 {fmt_size(bytes_sent)} streamed — rclone exited {rclone.returncode}\n\n"
            f"💬 `{error}`"
        )
        return

    global session_uploads
    session_uploads += 1
    if username and username not in AUTHORIZED_USERS:
        record_upload(username, bytes_sent)
    quota_note = ""
    if username and username not in AUTHORIZED_USERS:
        rem = quota_remaining(username)
        if rem is not None:
            quota_note = f"\n📊 Quota left today: {fmt_size(rem)}"
    avg_final = bytes_sent / stream_elapsed if stream_elapsed > 0 else 0
    await status.edit_text(
        f"✅ **Done!**\n\n"
        f"**{file_name}**\n"
        f"📦 {fmt_size(bytes_sent)}  ·  🗂 `{mime}`\n\n"
        f"📊 **Stats**\n"
        f"⚡ Avg speed:  {spd(avg_final)}\n"
        f"🏆 Peak speed: {spd(peak_spd)}\n"
        f"⏱ Stream:     {fmt_dur(stream_elapsed)}\n"
        f"🕐 Total:      {fmt_dur(total_elapsed)}\n\n"
        f"🧩 Chunk: {chunk_label}  ·  📡 {dc_note}  ·  💾 Disk: **0 B**\n"
        f"📁 → **Google Drive / {folder}**{quota_note}"
    )

    await send_links(message, file_name)

# ── Entry ─────────────────────────────────────────────────────────────────────

if __name__ == "__main__":
    if not API_ID or not API_HASH or not BOT_TOKEN:
        logger.error("API_ID, API_HASH, BOT_TOKEN must be set in .env")
        raise SystemExit(1)
    logger.info("Bot starting — manual < 2 GB · stream ≥ 2 GB · URL download · caption rename")
    app.run()