Paginate update list output

handlers/system.py

@@ -1,5 +1,5 @@
 from aiogram import F
-from aiogram.types import Message
+from aiogram.types import Message, CallbackQuery
 from app import dp
 from auth import is_admin_msg
 from keyboards import system_kb
@@ -9,6 +9,8 @@ from services.http_checks import get_url_checks, check_url
 import asyncio
 from services.queue import enqueue
 from services.updates import list_updates, apply_updates
+from state import UPDATES_CACHE
+from aiogram.types import InlineKeyboardMarkup, InlineKeyboardButton
 
 
 @dp.message(F.text == "💽 Disks")
@@ -60,8 +62,13 @@ async def updates_list(msg: Message):
         return
 
     async def job():
-        text = await list_updates()
-        await msg.answer(text, reply_markup=system_kb, parse_mode="Markdown")
+        title, lines = await list_updates()
+        UPDATES_CACHE[msg.from_user.id] = {
+            "title": title,
+            "lines": lines,
+            "page_size": 20,
+        }
+        await send_updates_page(msg, 0)
 
     pos = await enqueue("pkg-updates", job)
     await msg.answer(f"🕓 Updates queued (#{pos})", reply_markup=system_kb)
@@ -78,3 +85,48 @@ async def updates_apply(msg: Message):
 
     pos = await enqueue("pkg-upgrade", job)
     await msg.answer(f"🕓 Upgrade queued (#{pos})", reply_markup=system_kb)
+
+
+def _updates_kb(page: int, total_pages: int) -> InlineKeyboardMarkup:
+    buttons = []
+    if total_pages > 1:
+        row = []
+        if page > 0:
+            row.append(InlineKeyboardButton(text="⬅️ Prev", callback_data=f"updpage:{page-1}"))
+        if page < total_pages - 1:
+            row.append(InlineKeyboardButton(text="Next ➡️", callback_data=f"updpage:{page+1}"))
+        if row:
+            buttons.append(row)
+    return InlineKeyboardMarkup(inline_keyboard=buttons)
+
+
+async def send_updates_page(msg: Message, page: int):
+    data = UPDATES_CACHE.get(msg.from_user.id)
+    if not data:
+        await msg.answer("⚠️ Updates cache empty", reply_markup=system_kb)
+        return
+
+    lines = data["lines"]
+    page_size = data["page_size"]
+    total_pages = max(1, (len(lines) + page_size - 1) // page_size)
+    page = max(0, min(page, total_pages - 1))
+    start = page * page_size
+    end = start + page_size
+    body = "\n".join(lines[start:end])
+
+    text = f"{data['title']} (page {page+1}/{total_pages})\n```{body}```"
+    await msg.answer(text, reply_markup=_updates_kb(page, total_pages), parse_mode="Markdown")
+
+
+@dp.callback_query(F.data.startswith("updpage:"))
+async def updates_page(cb: CallbackQuery):
+    if cb.from_user.id not in UPDATES_CACHE:
+        await cb.answer("No cached updates")
+        return
+    try:
+        page = int(cb.data.split(":", 1)[1])
+    except ValueError:
+        await cb.answer("Bad page")
+        return
+    await cb.answer()
+    await send_updates_page(cb.message, page)