#!/usr/bin/env python3
from __future__ import annotations

import argparse
import datetime as dt
import fcntl
import json
import mimetypes
import os
import random
import re
import shutil
import string
import subprocess
import tempfile
import threading
import time
import traceback
import uuid
from pathlib import Path
from typing import Any, Callable
from urllib import error, request

DEFAULT_ALLOWED_PLAYERS = ",".join([
    "malvviiina:Милана",
    "zodiaktechnika32:Сергей",
    "oidasyda:Иван",
    "blackbyrd1:Ворон",
    "dimasol1:Дима",
])

TASK_STATUS_LABELS = {
    "new": "новая",
    "approved": "одобрена",
    "rejected": "отклонена",
    "needs_work": "на доработку",
    "done": "сделана",
}


def now_iso() -> str:
    return dt.datetime.now(dt.timezone.utc).isoformat()


def normalize_username(value: str | None) -> str:
    if not value:
        return ""
    value = value.strip()
    if value.startswith("@"):
        value = value[1:]
    return value.lower()


def parse_allowed_players(raw: str) -> dict[str, str]:
    players: dict[str, str] = {}
    for item in (raw or "").split(","):
        part = item.strip()
        if not part:
            continue
        username_part, sep, name_part = part.partition(":")
        username = normalize_username(username_part)
        if not username:
            continue
        player_name = (name_part if sep else username_part).strip() or username
        players[username] = player_name
    return players


def compact_spaces(text: str) -> str:
    return re.sub(r"\s+", " ", (text or "").strip())


def split_long_text(text: str, chunk_size: int = 3500) -> list[str]:
    text = (text or "").strip()
    if not text:
        return ["(пустой ответ)"]
    return [text[i:i + chunk_size] for i in range(0, len(text), chunk_size)]


def split_final_private_text(text: str, first_chunk_size: int = 3900, second_chunk_size: int = 3900) -> list[str]:
    text = (text or "").strip()
    if not text:
        return ["(пустой ответ)"]
    if len(text) <= first_chunk_size:
        return [text]
    first = text[:first_chunk_size].rstrip()
    rest = text[first_chunk_size:].lstrip()
    if len(rest) <= second_chunk_size:
        return [first, rest]
    second = rest[:second_chunk_size].rstrip()
    if len(second) > 40:
        second = second[:-40].rstrip()
    second = second.rstrip() + "\n...[ответ обрезан]"
    return [first, second]


def split_text_for_tts(text: str, chunk_size: int) -> list[str]:
    text = (text or "").strip()
    if not text:
        return []
    chunks: list[str] = []
    current = ""
    paragraphs = re.split(r"\n\s*\n", text)
    for paragraph in paragraphs:
        paragraph = paragraph.strip()
        if not paragraph:
            continue
        if len(paragraph) > chunk_size:
            if current:
                chunks.append(current)
                current = ""
            for i in range(0, len(paragraph), chunk_size):
                part = paragraph[i:i + chunk_size].strip()
                if part:
                    chunks.append(part)
            continue
        candidate = paragraph if not current else f"{current}\n\n{paragraph}"
        if len(candidate) <= chunk_size:
            current = candidate
        else:
            if current:
                chunks.append(current)
            current = paragraph
    if current:
        chunks.append(current)
    return chunks


def read_env_file(path: Path) -> dict[str, str]:
    result: dict[str, str] = {}
    if not path.exists():
        return result
    for raw_line in path.read_text(encoding="utf-8").splitlines():
        line = raw_line.strip()
        if not line or line.startswith("#") or "=" not in line:
            continue
        key, value = line.split("=", 1)
        key = key.strip()
        value = value.strip().strip('"').strip("'")
        result[key] = value
    return result


class VoiceTranscriptionError(RuntimeError):
    def __init__(
        self,
        user_message: str,
        *,
        stage: str,
        retryable: bool = True,
        detail: str = "",
    ):
        super().__init__(user_message)
        self.user_message = user_message
        self.stage = stage
        self.retryable = retryable
        self.detail = detail

    def log_text(self) -> str:
        if self.detail and self.detail != self.user_message:
            return f"{self.user_message} stage={self.stage} retryable={self.retryable} detail={self.detail}"
        return f"{self.user_message} stage={self.stage} retryable={self.retryable}"


class VoiceReplyError(RuntimeError):
    pass


class JsonLineStore:
    @staticmethod
    def load(path: Path) -> list[dict[str, Any]]:
        if not path.exists():
            return []
        items: list[dict[str, Any]] = []
        for line in path.read_text(encoding="utf-8").splitlines():
            line = line.strip()
            if not line:
                continue
            items.append(json.loads(line))
        return items

    @staticmethod
    def save(path: Path, items: list[dict[str, Any]]) -> None:
        path.parent.mkdir(parents=True, exist_ok=True)
        tmp = path.with_suffix(path.suffix + ".tmp")
        with tmp.open("w", encoding="utf-8") as f:
            for item in items:
                f.write(json.dumps(item, ensure_ascii=False) + "\n")
        tmp.replace(path)

    @staticmethod
    def append(path: Path, item: dict[str, Any]) -> None:
        path.parent.mkdir(parents=True, exist_ok=True)
        with path.open("a", encoding="utf-8") as f:
            f.write(json.dumps(item, ensure_ascii=False) + "\n")


class TelegramApi:
    def __init__(self, token: str, base_url: str = "https://api.telegram.org"):
        self.token = token
        self.api_root = (base_url or "https://api.telegram.org").rstrip("/")
        self.base = f"{self.api_root}/bot{token}/"
        self.file_base = f"{self.api_root}/file/bot{token}/"

    def call(self, method: str, payload: dict[str, Any] | None = None, timeout: int = 60) -> dict[str, Any]:
        data = None
        headers = {}
        if payload is not None:
            data = json.dumps(payload).encode("utf-8")
            headers["Content-Type"] = "application/json"
        req = request.Request(self.base + method, data=data, headers=headers, method="POST")
        try:
            with request.urlopen(req, timeout=timeout) as resp:
                raw = resp.read().decode("utf-8")
        except error.HTTPError as e:
            body = e.read().decode("utf-8", errors="replace")
            raise RuntimeError(f"Telegram HTTP {e.code}: {body}") from e
        except Exception as e:
            raise RuntimeError(f"Telegram request failed: {e}") from e

        result = json.loads(raw)
        if not result.get("ok"):
            raise RuntimeError(f"Telegram API error: {result}")
        return result

    def call_multipart(
        self,
        method: str,
        fields: dict[str, Any],
        files: dict[str, tuple[str, bytes, str]],
        timeout: int = 120,
    ) -> dict[str, Any]:
        boundary = "----shine-tg-boundary-" + "".join(random.choices("abcdef0123456789", k=16))
        body = bytearray()
        for name, value in fields.items():
            if value is None:
                continue
            body.extend(
                (
                    f"--{boundary}\r\n"
                    f'Content-Disposition: form-data; name="{name}"\r\n\r\n'
                    f"{value}\r\n"
                ).encode("utf-8")
            )
        for name, (filename, data, mime) in files.items():
            body.extend(
                (
                    f"--{boundary}\r\n"
                    f'Content-Disposition: form-data; name="{name}"; filename="{filename}"\r\n'
                    f"Content-Type: {mime}\r\n\r\n"
                ).encode("utf-8")
            )
            body.extend(data)
            body.extend(b"\r\n")
        body.extend(f"--{boundary}--\r\n".encode("utf-8"))

        req = request.Request(self.base + method, data=bytes(body), method="POST")
        req.add_header("Content-Type", f"multipart/form-data; boundary={boundary}")
        try:
            with request.urlopen(req, timeout=timeout) as resp:
                raw = resp.read().decode("utf-8")
        except error.HTTPError as e:
            body_text = e.read().decode("utf-8", errors="replace")
            raise RuntimeError(f"Telegram HTTP {e.code}: {body_text}") from e
        except Exception as e:
            raise RuntimeError(f"Telegram multipart request failed: {e}") from e

        result = json.loads(raw)
        if not result.get("ok"):
            raise RuntimeError(f"Telegram API error: {result}")
        return result

    def get_updates(self, offset: int | None, timeout_sec: int) -> list[dict[str, Any]]:
        payload: dict[str, Any] = {"timeout": timeout_sec, "allowed_updates": ["message", "channel_post"]}
        if offset is not None:
            payload["offset"] = offset
        result = self.call("getUpdates", payload=payload, timeout=timeout_sec + 15)
        return result.get("result", [])

    def send_message(self, chat_id: int | str, text: str, reply_to_message_id: int | None = None) -> dict[str, Any]:
        payload: dict[str, Any] = {"chat_id": chat_id, "text": text}
        if reply_to_message_id is not None:
            payload["reply_to_message_id"] = reply_to_message_id
        return self.call("sendMessage", payload=payload, timeout=30)

    def edit_message_text(self, chat_id: int | str, message_id: int, text: str) -> dict[str, Any]:
        payload: dict[str, Any] = {"chat_id": chat_id, "message_id": message_id, "text": text}
        return self.call("editMessageText", payload=payload, timeout=30)

    def send_voice(
        self,
        chat_id: int | str,
        voice: str,
        caption: str = "",
        reply_to_message_id: int | None = None,
    ) -> dict[str, Any]:
        payload: dict[str, Any] = {"chat_id": chat_id, "voice": voice}
        if caption:
            payload["caption"] = caption
        if reply_to_message_id is not None:
            payload["reply_to_message_id"] = reply_to_message_id
        return self.call("sendVoice", payload=payload, timeout=60)

    def send_audio(
        self,
        chat_id: int | str,
        audio: str,
        caption: str = "",
        reply_to_message_id: int | None = None,
    ) -> dict[str, Any]:
        payload: dict[str, Any] = {"chat_id": chat_id, "audio": audio}
        if caption:
            payload["caption"] = caption
        if reply_to_message_id is not None:
            payload["reply_to_message_id"] = reply_to_message_id
        return self.call("sendAudio", payload=payload, timeout=60)

    def send_voice_upload(
        self,
        chat_id: int | str,
        voice_bytes: bytes,
        filename: str,
        caption: str = "",
        reply_to_message_id: int | None = None,
    ) -> dict[str, Any]:
        fields: dict[str, Any] = {"chat_id": chat_id}
        if caption:
            fields["caption"] = caption
        if reply_to_message_id is not None:
            fields["reply_to_message_id"] = reply_to_message_id
        return self.call_multipart(
            "sendVoice",
            fields=fields,
            files={"voice": (filename, voice_bytes, "audio/ogg")},
            timeout=180,
        )

    def delete_webhook(self) -> None:
        self.call("deleteWebhook", payload={"drop_pending_updates": False}, timeout=30)


class BotConfig:
    def __init__(self, root_dir: Path):
        env = dict(os.environ)
        env.update(read_env_file(root_dir / ".env"))

        self.root_dir = root_dir
        self.telegram_bot_token = self._required(env, "TELEGRAM_BOT_TOKEN")
        self.allowed_username = normalize_username(env.get("ALLOWED_TELEGRAM_USERNAME", "AidarKC"))
        self.allowed_players = parse_allowed_players(env.get("ALLOWED_TELEGRAM_PLAYERS", DEFAULT_ALLOWED_PLAYERS))
        self.allowed_channel_username = normalize_username(env.get("ALLOWED_TELEGRAM_CHANNEL_USERNAME", "shine_writing"))
        self.bot_username = env.get("BOT_USERNAME", "aidar_su_bot")
        self.telegram_api_base_url = env.get("TELEGRAM_API_BASE_URL", "https://api.telegram.org").strip() or "https://api.telegram.org"
        self.openai_api_key = env.get("OPENAI_API_KEY", "").strip()
        self.openai_transcribe_model = env.get("OPENAI_TRANSCRIBE_MODEL", "gpt-4o-mini-transcribe")
        self.telegram_file_download_timeout_seconds = int(env.get("TELEGRAM_FILE_DOWNLOAD_TIMEOUT_SECONDS", "300"))
        self.openai_transcribe_timeout_seconds = int(env.get("OPENAI_TRANSCRIBE_TIMEOUT_SECONDS", "900"))
        self.openai_transcribe_max_upload_bytes = max(1_000_000, int(env.get("OPENAI_TRANSCRIBE_MAX_UPLOAD_BYTES", str(24 * 1024 * 1024))))
        self.openai_transcribe_max_chunk_seconds = max(60, int(env.get("OPENAI_TRANSCRIBE_MAX_CHUNK_SECONDS", "900")))
        self.openai_transcribe_overlap_seconds = max(0, int(env.get("OPENAI_TRANSCRIBE_OVERLAP_SECONDS", "2")))
        self.openai_transcribe_reencode_bitrate_kbps = max(12, int(env.get("OPENAI_TRANSCRIBE_REENCODE_BITRATE_KBPS", "24")))
        self.openai_transcribe_ffmpeg_timeout_seconds = max(30, int(env.get("OPENAI_TRANSCRIBE_FFMPEG_TIMEOUT_SECONDS", "1800")))
        self.ffmpeg_bin = env.get("FFMPEG_BIN", "ffmpeg").strip() or "ffmpeg"
        self.ffprobe_bin = env.get("FFPROBE_BIN", "ffprobe").strip() or "ffprobe"
        self.openai_tts_model = env.get("OPENAI_TTS_MODEL", "gpt-4o-mini-tts")
        self.openai_tts_voice = env.get("OPENAI_TTS_VOICE", "alloy")
        self.openai_tts_response_format = env.get("OPENAI_TTS_RESPONSE_FORMAT", "opus")
        self.openai_tts_timeout_seconds = int(env.get("OPENAI_TTS_TIMEOUT_SECONDS", "180"))
        self.openai_tts_chunk_chars = max(500, int(env.get("OPENAI_TTS_CHUNK_CHARS", "3500")))
        self.openai_voice_rewrite_model = env.get("OPENAI_VOICE_REWRITE_MODEL", "gpt-4.1-nano")
        self.openai_voice_rewrite_timeout_seconds = int(env.get("OPENAI_VOICE_REWRITE_TIMEOUT_SECONDS", "90"))
        self.openai_voice_rewrite_max_input_chars = max(1000, int(env.get("OPENAI_VOICE_REWRITE_MAX_INPUT_CHARS", "12000")))
        self.openai_voice_rewrite_max_output_tokens = max(200, int(env.get("OPENAI_VOICE_REWRITE_MAX_OUTPUT_TOKENS", "900")))
        self.codex_bin = Path(env.get(
            "CODEX_BIN",
            "/home/ai/.cache/JetBrains/IntelliJIdea2026.1/aia/codex/bin/codex-x86_64-unknown-linux-musl"
        ))
        self.codex_workdir = Path(env.get("CODEX_WORKDIR", "/home/ai/work/SHiNE/SHiNE-server-sha256"))
        self.codex_timeout_seconds = int(env.get("CODEX_TIMEOUT_SECONDS", "900"))
        self.max_retries = max(1, int(env.get("MAX_RETRIES", "3")))
        self.data_dir = (root_dir / env.get("DATA_DIR", "./data")).resolve()
        self.agent_instructions_file = (root_dir / "AGENT.md").resolve()

    @staticmethod
    def _required(env: dict[str, str], key: str) -> str:
        value = env.get(key, "").strip()
        if not value:
            raise RuntimeError(f"Не задан обязательный параметр: {key}")
        return value


class ShinePyBotService:
    def __init__(self, config: BotConfig):
        self.cfg = config
        self.telegram = TelegramApi(config.telegram_bot_token, config.telegram_api_base_url)

        self.queue_file = config.data_dir / "py_queue.jsonl"
        self.state_file = config.data_dir / "py_state.json"
        self.processed_updates_file = config.data_dir / "py_processed_updates.log"
        self.lock_file = config.data_dir / "py_app.lock"
        self.history_dir = config.data_dir / "history"
        self.history_archive_dir = self.history_dir / "archive"
        self.task_center_dir = config.data_dir / "task_center"
        self.task_center_file = self.task_center_dir / "items.json"
        self.max_processed_updates = 5000

        self.queue_lock = threading.RLock()
        self.task_center_lock = threading.RLock()
        self.stop_event = threading.Event()
        self.worker = threading.Thread(target=self._worker_loop, name="shine-py-bot-worker", daemon=True)

        self.queue: list[dict[str, Any]] = []
        self.state: dict[str, Any] = {}
        self.processed_updates: list[str] = []
        self.active_job_id: str | None = None
        self.active_job_started_at: float | None = None
        self.active_process: subprocess.Popen[str] | None = None
        self.active_process_lock = threading.Lock()
        self.stop_current_job = False
        self.lock_fd = None
        self.last_heartbeat_at: float = 0.0
        self.restart_requested = False

    def _is_owner(self, username: str) -> bool:
        return normalize_username(username) == self.cfg.allowed_username

    def _is_allowed_player(self, username: str) -> bool:
        return normalize_username(username) in self.cfg.allowed_players

    def _is_allowed_user(self, username: str) -> bool:
        uname = normalize_username(username)
        return uname == self.cfg.allowed_username or uname in self.cfg.allowed_players

    def _player_name(self, username: str) -> str:
        uname = normalize_username(username)
        return self.cfg.allowed_players.get(uname, uname)

    def _display_name(self, username: str) -> str:
        uname = normalize_username(username)
        if uname == self.cfg.allowed_username:
            return "Айдар"
        return self._player_name(uname)

    def _known_usernames(self) -> dict[str, str]:
        users = {self.cfg.allowed_username: "Айдар"}
        users.update(self.cfg.allowed_players)
        return users

    def _find_user_by_text(self, text: str) -> str:
        source = normalize_username(text)
        if source in self._known_usernames():
            return source
        source_lower = (text or "").strip().lower()
        aliases = {
            "айдар": self.cfg.allowed_username,
            "айдару": self.cfg.allowed_username,
            "айдара": self.cfg.allowed_username,
            "милана": "malvviiina",
            "милане": "malvviiina",
            "милану": "malvviiina",
            "миланы": "malvviiina",
            "сергей": "zodiaktechnika32",
            "сергею": "zodiaktechnika32",
            "сергея": "zodiaktechnika32",
            "иван": "oidasyda",
            "ивану": "oidasyda",
            "ивана": "oidasyda",
            "ворон": "blackbyrd1",
            "ворону": "blackbyrd1",
            "ворона": "blackbyrd1",
            "дима": "dimasol1",
            "диме": "dimasol1",
            "диму": "dimasol1",
            "димы": "dimasol1",
        }
        for alias, username in aliases.items():
            if re.search(rf"(^|\W){re.escape(alias)}($|\W)", source_lower, flags=re.IGNORECASE):
                return username
        for username, name in self._known_usernames().items():
            if username and username in source_lower:
                return username
            if name and name.lower() in source_lower:
                return username
        return ""

    def run(self) -> None:
        self._ensure_dirs()
        self._acquire_single_instance_lock()
        self._load_state()
        self._load_queue()
        self._load_processed_updates()
        self._recover_active_jobs_after_restart()
        self.telegram.delete_webhook()
        self._init_offset_if_missing()
        self.worker.start()
        self._append_history_event("service_started", {"allowedUsername": self.cfg.allowed_username})
        print(f"[py-bot] Запущен. allowed user: @{self.cfg.allowed_username}", flush=True)

        try:
            while not self.stop_event.is_set():
                try:
                    offset = self.state.get("offset")
                    updates = self.telegram.get_updates(offset=offset, timeout_sec=25)
                except Exception as e:
                    print(f"[py-bot] Ошибка getUpdates: {e}", flush=True)
                    time.sleep(2)
                    continue

                for update in updates:
                    update_id = update.get("update_id")
                    if isinstance(update_id, int):
                        self.state["offset"] = update_id + 1
                        self._persist_state()
                    self._handle_update(update)
        finally:
            self.shutdown()

    def shutdown(self) -> None:
        if self.stop_event.is_set():
            pass
        self.stop_event.set()
        self._stop_active_codex_process()
        if self.worker.is_alive():
            self.worker.join(timeout=10)
        if self.lock_fd is not None:
            try:
                fcntl.flock(self.lock_fd, fcntl.LOCK_UN)
            finally:
                self.lock_fd.close()
                self.lock_fd = None
        self._append_history_event("service_stopped", {})

    def _ensure_dirs(self) -> None:
        self.cfg.data_dir.mkdir(parents=True, exist_ok=True)
        self.history_dir.mkdir(parents=True, exist_ok=True)
        self.history_archive_dir.mkdir(parents=True, exist_ok=True)
        self.task_center_dir.mkdir(parents=True, exist_ok=True)

    def _acquire_single_instance_lock(self) -> None:
        self.lock_file.parent.mkdir(parents=True, exist_ok=True)
        self.lock_fd = self.lock_file.open("a+")
        try:
            fcntl.flock(self.lock_fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
        except BlockingIOError:
            raise RuntimeError(f"Уже запущен другой инстанс (lock: {self.lock_file})")

    def _load_state(self) -> None:
        if self.state_file.exists():
            self.state = json.loads(self.state_file.read_text(encoding="utf-8"))
        else:
            self.state = {}
        sessions = self.state.get("user_sessions")
        if not isinstance(sessions, dict):
            sessions = {}
            self.state["user_sessions"] = sessions
        user_settings = self.state.get("user_settings")
        if not isinstance(user_settings, dict):
            user_settings = {}
            self.state["user_settings"] = user_settings
        if not self.state.get("current_history_file"):
            history_file = self._create_new_history_file("initial", self.cfg.allowed_username)
            self.state["current_history_file"] = str(history_file)
            sessions[self.cfg.allowed_username] = {"current_history_file": str(history_file)}
        elif self.cfg.allowed_username not in sessions:
            sessions[self.cfg.allowed_username] = {"current_history_file": str(self.state["current_history_file"])}
        if not isinstance(self.state.get("next_job_number"), int):
            self.state["next_job_number"] = 1
        self.state["updated_at"] = now_iso()
        self._persist_state()

    def _persist_state(self) -> None:
        self.state["updated_at"] = now_iso()
        tmp = self.state_file.with_suffix(".tmp")
        tmp.write_text(json.dumps(self.state, ensure_ascii=False, indent=2), encoding="utf-8")
        tmp.replace(self.state_file)

    def _load_queue(self) -> None:
        self.queue = JsonLineStore.load(self.queue_file)

    def _persist_queue(self) -> None:
        JsonLineStore.save(self.queue_file, self.queue)

    def _load_processed_updates(self) -> None:
        if not self.processed_updates_file.exists():
            self.processed_updates = []
            return
        lines = [x.strip() for x in self.processed_updates_file.read_text(encoding="utf-8").splitlines() if x.strip()]
        if len(lines) > self.max_processed_updates:
            lines = lines[-self.max_processed_updates:]
            self.processed_updates_file.write_text("\n".join(lines) + "\n", encoding="utf-8")
        self.processed_updates = lines

    def _mark_processed_update(self, update_key: str) -> bool:
        if update_key in self.processed_updates:
            return True
        self.processed_updates.append(update_key)
        if len(self.processed_updates) > self.max_processed_updates:
            self.processed_updates = self.processed_updates[-self.max_processed_updates:]
            self.processed_updates_file.write_text("\n".join(self.processed_updates) + "\n", encoding="utf-8")
        else:
            with self.processed_updates_file.open("a", encoding="utf-8") as f:
                f.write(update_key + "\n")
        return False

    def _recover_active_jobs_after_restart(self) -> None:
        recovered_ids: list[str] = []
        for job in self.queue:
            if job.get("status") == "active":
                job["status"] = "pending"
                job["retry_reason"] = "service_restart_recovery"
                job["updated_at"] = now_iso()
                recovered_ids.append(job.get("id", ""))
        if recovered_ids:
            self._persist_queue()
            self._append_history_event("active_jobs_recovered", {"jobIds": recovered_ids})

    def _init_offset_if_missing(self) -> None:
        if self.state.get("offset") is not None:
            return
        try:
            updates = self.telegram.get_updates(offset=None, timeout_sec=0)
            if updates:
                self.state["offset"] = int(updates[-1]["update_id"]) + 1
            else:
                self.state["offset"] = 0
            self._persist_state()
        except Exception as e:
            print(f"[py-bot] Не удалось инициализировать offset: {e}", flush=True)
            self.state["offset"] = 0
            self._persist_state()

    def _current_history_file(self) -> Path:
        return self._current_history_file_for_user(self.cfg.allowed_username)

    def _history_dirs_for_user(self, username: str) -> tuple[Path, Path]:
        uname = normalize_username(username) or "unknown"
        history_dir = self.history_dir / uname
        archive_dir = history_dir / "archive"
        history_dir.mkdir(parents=True, exist_ok=True)
        archive_dir.mkdir(parents=True, exist_ok=True)
        return history_dir, archive_dir

    def _ensure_user_session(self, username: str) -> None:
        uname = normalize_username(username) or self.cfg.allowed_username
        sessions = self.state.setdefault("user_sessions", {})
        if not isinstance(sessions, dict):
            sessions = {}
            self.state["user_sessions"] = sessions
        self._user_settings(uname)
        session = sessions.get(uname)
        if isinstance(session, dict) and session.get("current_history_file"):
            return
        history_file = self._create_new_history_file("initial", uname)
        sessions[uname] = {"current_history_file": str(history_file)}
        if uname == self.cfg.allowed_username:
            self.state["current_history_file"] = str(history_file)
        self._persist_state()

    def _user_session_state(self, username: str) -> dict[str, Any]:
        uname = normalize_username(username) or self.cfg.allowed_username
        self._ensure_user_session(uname)
        sessions = self.state.get("user_sessions") or {}
        session = sessions.get(uname)
        if not isinstance(session, dict):
            session = {}
            sessions[uname] = session
        return session

    def _current_history_file_for_user(self, username: str) -> Path:
        session = self._user_session_state(username)
        return Path(session["current_history_file"])

    def _codex_thread_id_for_user(self, username: str) -> str:
        thread_id = (self._user_session_state(username).get("codex_thread_id") or "").strip()
        return thread_id

    def _set_codex_thread_id_for_user(self, username: str, thread_id: str) -> None:
        session = self._user_session_state(username)
        normalized = (thread_id or "").strip()
        if normalized:
            session["codex_thread_id"] = normalized
        else:
            session.pop("codex_thread_id", None)
        self._persist_state()

    def _create_new_history_file(self, reason: str, username: str) -> Path:
        ts = dt.datetime.now().strftime("%Y-%m-%d_%H%M%S")
        rnd = "".join(random.choices(string.hexdigits.lower(), k=8))
        history_dir, _ = self._history_dirs_for_user(username)
        path = history_dir / f"{ts}_{rnd}.jsonl"
        JsonLineStore.append(path, {
            "ts": now_iso(),
            "type": "history_created",
            "reason": reason,
            "username": normalize_username(username),
        })
        return path

    def _rotate_history(self, reason: str, username: str) -> Path:
        uname = normalize_username(username) or self.cfg.allowed_username
        current = self._current_history_file_for_user(uname)
        _, archive_dir = self._history_dirs_for_user(uname)
        if current.exists():
            archived = archive_dir / current.name
            current.replace(archived)
        else:
            archived = archive_dir / "(empty)"
        new_file = self._create_new_history_file(reason, uname)
        sessions = self.state.setdefault("user_sessions", {})
        if not isinstance(sessions, dict):
            sessions = {}
            self.state["user_sessions"] = sessions
        previous = sessions.get(uname) if isinstance(sessions.get(uname), dict) else {}
        sessions[uname] = {"current_history_file": str(new_file)}
        if reason != "command_new" and isinstance(previous, dict):
            thread_id = (previous.get("codex_thread_id") or "").strip()
            if thread_id:
                sessions[uname]["codex_thread_id"] = thread_id
        if uname == self.cfg.allowed_username:
            self.state["current_history_file"] = str(new_file)
        self._persist_state()
        self._append_history_event("history_rotated", {"reason": reason, "username": uname, "archived": str(archived)}, username=uname)
        return archived

    def _user_settings(self, username: str) -> dict[str, Any]:
        uname = normalize_username(username) or self.cfg.allowed_username
        settings = self.state.get("user_settings")
        if not isinstance(settings, dict):
            settings = {}
            self.state["user_settings"] = settings
        user_settings = settings.get(uname)
        if not isinstance(user_settings, dict):
            user_settings = {}
            settings[uname] = user_settings
        if not isinstance(user_settings.get("voice_replies_enabled"), bool):
            user_settings["voice_replies_enabled"] = True
        if not isinstance(user_settings.get("voice_rewrite_enabled"), bool):
            user_settings["voice_rewrite_enabled"] = True
        if not isinstance(user_settings.get("single_status_message_enabled"), bool):
            user_settings["single_status_message_enabled"] = True
        return user_settings

    def _voice_replies_enabled(self, username: str) -> bool:
        return bool(self._user_settings(username).get("voice_replies_enabled"))

    def _set_voice_replies_enabled(self, username: str, enabled: bool) -> None:
        self._user_settings(username)["voice_replies_enabled"] = enabled
        self._persist_state()

    def _voice_rewrite_enabled(self, username: str) -> bool:
        return bool(self._user_settings(username).get("voice_rewrite_enabled"))

    def _set_voice_rewrite_enabled(self, username: str, enabled: bool) -> None:
        self._user_settings(username)["voice_rewrite_enabled"] = enabled
        self._persist_state()

    def _single_status_message_enabled(self, username: str) -> bool:
        return bool(self._user_settings(username).get("single_status_message_enabled"))

    def _set_single_status_message_enabled(self, username: str, enabled: bool) -> None:
        self._user_settings(username)["single_status_message_enabled"] = enabled
        self._persist_state()

    def _remember_private_chat(self, username: str, chat_id: int) -> None:
        uname = normalize_username(username)
        if not uname:
            return
        private_chats = self.state.get("private_chat_ids")
        if not isinstance(private_chats, dict):
            private_chats = {}
            self.state["private_chat_ids"] = private_chats
        if private_chats.get(uname) == chat_id:
            return
        private_chats[uname] = chat_id
        self._persist_state()

    def _private_chat_id_for_user(self, username: str) -> int | None:
        private_chats = self.state.get("private_chat_ids")
        if not isinstance(private_chats, dict):
            return None
        chat_id = private_chats.get(normalize_username(username))
        return self._resolve_chat_id(chat_id) if isinstance(chat_id, int) else None

    def _append_history(self, history_path: Path, event_type: str, payload: dict[str, Any]) -> None:
        row = {"ts": now_iso(), "type": event_type}
        row.update(payload)
        JsonLineStore.append(history_path, row)

    def _append_history_event(self, event_type: str, payload: dict[str, Any], username: str | None = None) -> None:
        history_path = self._current_history_file_for_user(username or self.cfg.allowed_username)
        self._append_history(history_path, "system_event", {"event": event_type, **payload})

    def _load_task_items(self) -> list[dict[str, Any]]:
        with self.task_center_lock:
            if not self.task_center_file.exists():
                return []
            try:
                data = json.loads(self.task_center_file.read_text(encoding="utf-8"))
            except Exception:
                return []
            return data if isinstance(data, list) else []

    def _save_task_items(self, items: list[dict[str, Any]]) -> None:
        with self.task_center_lock:
            self.task_center_file.parent.mkdir(parents=True, exist_ok=True)
            tmp = self.task_center_file.with_suffix(".tmp")
            tmp.write_text(json.dumps(items, ensure_ascii=False, indent=2), encoding="utf-8")
            tmp.replace(self.task_center_file)

    def _next_task_item_id(self, items: list[dict[str, Any]]) -> str:
        max_num = 0
        for item in items:
            raw = str(item.get("id") or "")
            match = re.match(r"TC-(\d+)$", raw)
            if match:
                max_num = max(max_num, int(match.group(1)))
        return f"TC-{max_num + 1:04d}"

    def _create_task_item(
        self,
        *,
        kind: str,
        title: str,
        text: str,
        source_username: str,
        target_username: str,
        source_message_id: int | None = None,
        source_chat_id: int | None = None,
        opinion: str = "",
    ) -> dict[str, Any]:
        items = self._load_task_items()
        item = {
            "id": self._next_task_item_id(items),
            "kind": kind,
            "status": "new",
            "title": compact_spaces(title)[:160] or ("Предложение" if kind == "proposal" else "Задача"),
            "text": (text or "").strip(),
            "opinion": (opinion or "").strip(),
            "source_username": normalize_username(source_username),
            "source_name": self._display_name(source_username),
            "target_username": normalize_username(target_username),
            "target_name": self._display_name(target_username),
            "source_chat_id": source_chat_id,
            "source_message_id": source_message_id,
            "created_at": now_iso(),
            "updated_at": now_iso(),
        }
        items.append(item)
        self._save_task_items(items)
        self._append_history_event("task_center_item_created", {
            "itemId": item["id"],
            "kind": kind,
            "sourceUsername": item["source_username"],
            "targetUsername": item["target_username"],
            "title": item["title"],
        }, username=source_username)
        return item

    def _task_items_for_user(self, username: str, *, include_done: bool = False) -> list[dict[str, Any]]:
        uname = normalize_username(username)
        items = self._load_task_items()
        result = [
            item for item in items
            if normalize_username(item.get("target_username")) == uname
            and (include_done or item.get("status") != "done")
        ]
        return sorted(result, key=lambda x: str(x.get("created_at") or ""))

    def _task_center_counts_text(self, username: str) -> str:
        counts: dict[str, int] = {}
        for item in self._task_items_for_user(username):
            status = str(item.get("status") or "new")
            counts[status] = counts.get(status, 0) + 1
        active_total = sum(counts.values())
        if active_total <= 0:
            return ""
        parts = []
        for status in ("new", "approved", "needs_work", "rejected"):
            count = counts.get(status, 0)
            if count:
                parts.append(f"{TASK_STATUS_LABELS.get(status, status)}: {count}")
        return f"Напоминание по задачам: всего активных {active_total}; " + ", ".join(parts) + "."

    def _format_task_items(self, username: str, *, include_done: bool = False) -> str:
        items = self._task_items_for_user(username, include_done=include_done)
        if not items:
            return f"Для {self._display_name(username)} активных задач и предложений нет."
        lines = [f"Задачи и предложения для {self._display_name(username)}:"]
        for item in items[:15]:
            kind = "предложение" if item.get("kind") == "proposal" else "задача"
            status = TASK_STATUS_LABELS.get(str(item.get("status") or "new"), str(item.get("status") or "new"))
            source = item.get("source_name") or item.get("source_username") or "неизвестно"
            title = item.get("title") or "(без названия)"
            lines.append(f"{item.get('id')} [{status}] {kind} от {source}: {title}")
        if len(items) > 15:
            lines.append(f"...и ещё {len(items) - 15}")
        return "\n".join(lines)

    def _update_task_item_status(self, item_id: str, status: str) -> dict[str, Any] | None:
        item_id = (item_id or "").strip().upper()
        items = self._load_task_items()
        updated = None
        for item in items:
            if str(item.get("id") or "").upper() == item_id:
                item["status"] = status
                item["updated_at"] = now_iso()
                updated = item
                break
        if updated is not None:
            self._save_task_items(items)
        return updated

    def _find_first_task_item(self, *, source_username: str = "", target_username: str = "", kind: str = "") -> dict[str, Any] | None:
        source = normalize_username(source_username)
        target = normalize_username(target_username)
        for item in self._load_task_items():
            if item.get("status") == "done":
                continue
            if source and normalize_username(item.get("source_username")) != source:
                continue
            if target and normalize_username(item.get("target_username")) != target:
                continue
            if kind and item.get("kind") != kind:
                continue
            return item
        return None

    def _notify_user_about_task_item(self, username: str, item: dict[str, Any]) -> None:
        chat_id = self._private_chat_id_for_user(username)
        if chat_id is None:
            return
        kind = "предложение" if item.get("kind") == "proposal" else "задача"
        source = item.get("source_name") or item.get("source_username") or "кто-то"
        title = item.get("title") or "(без названия)"
        status = TASK_STATUS_LABELS.get(str(item.get("status") or "new"), str(item.get("status") or "new"))
        if item.get("status") == "new":
            text = f"У тебя новое {kind} от {source}: {title}\nID: {item.get('id')}"
        else:
            text = f"Обновление по {kind} {item.get('id')}: статус «{status}».\n{title}"
        self._safe_send(chat_id, text)

    def _send_player_welcome_once(self, chat_id: int, message_id: int, username: str) -> None:
        uname = normalize_username(username)
        sent = self.state.get("player_welcome_sent")
        if not isinstance(sent, dict):
            sent = {}
            self.state["player_welcome_sent"] = sent
        if sent.get(uname):
            return
        player_name = self._player_name(uname)
        text = (
            f"Привет, {player_name}.\n"
            "Можно задавать вопросы по проекту, просить анализ, идеи и подготовку готового ТЗ.\n"
            "Команда /new начинает новую Codex-сессию и архивирует текущую историю."
        )
        reminder = self._task_center_counts_text(uname)
        if reminder:
            text = f"{text}\n\n{reminder}\nКоманда /tasks покажет список."
        self._safe_send(chat_id, text, reply_to=message_id)
        sent[uname] = now_iso()
        self._persist_state()

    def _resolve_chat_id(self, chat_id: int) -> int:
        migrations = self.state.get("chat_id_migrations")
        if not isinstance(migrations, dict):
            return chat_id
        current = chat_id
        visited: set[int] = set()
        while current not in visited:
            visited.add(current)
            next_chat_id = migrations.get(str(current))
            if not isinstance(next_chat_id, int):
                break
            current = next_chat_id
        return current

    def _remember_chat_migration(self, old_chat_id: int, new_chat_id: int, source: str) -> None:
        if old_chat_id == new_chat_id:
            return
        migrations = self.state.get("chat_id_migrations")
        if not isinstance(migrations, dict):
            migrations = {}
            self.state["chat_id_migrations"] = migrations
        if migrations.get(str(old_chat_id)) == new_chat_id:
            return
        migrations[str(old_chat_id)] = new_chat_id
        self._persist_state()
        with self.queue_lock:
            changed = False
            for job in self.queue:
                if job.get("chat_id") == old_chat_id:
                    job["chat_id"] = new_chat_id
                    job["updated_at"] = now_iso()
                    changed = True
            if changed:
                self._persist_queue()
        self._append_history_event("chat_migrated_to_supergroup", {
            "oldChatId": old_chat_id,
            "newChatId": new_chat_id,
            "source": source,
        })

    @staticmethod
    def _extract_migrate_to_chat_id(error_text: str) -> int | None:
        match = re.search(r'"migrate_to_chat_id"\s*:\s*(-?\d+)', error_text)
        if match:
            return int(match.group(1))
        match = re.search(r"'migrate_to_chat_id'\s*:\s*(-?\d+)", error_text)
        if match:
            return int(match.group(1))
        return None

    def _handle_update(self, update: dict[str, Any]) -> None:
        message = update.get("message")
        update_type = "message"
        if not isinstance(message, dict):
            message = update.get("channel_post")
            update_type = "channel_post"
            if not isinstance(message, dict):
                return
        chat = message.get("chat") or {}
        chat_id = chat.get("id")
        message_id = message.get("message_id")
        chat_type = str(chat.get("type") or "")
        chat_username = normalize_username(chat.get("username"))
        chat_title = str(chat.get("title") or "")
        sender = message.get("from") or {}
        username = normalize_username(sender.get("username"))
        author_signature = str(message.get("author_signature") or "").strip()
        author_username = username or normalize_username(author_signature)
        if not isinstance(chat_id, int) or not isinstance(message_id, int):
            return

        migrate_to_chat_id = message.get("migrate_to_chat_id")
        if isinstance(migrate_to_chat_id, int):
            self._remember_chat_migration(chat_id, migrate_to_chat_id, "telegram_message")
            return

        update_key = f"{chat_id}:{message_id}"
        if self._mark_processed_update(update_key):
            return

        is_channel_post = update_type == "channel_post" or chat_type == "channel"
        is_group_message = update_type == "message" and chat_type in ("group", "supergroup")
        is_allowed_channel = (
            not is_channel_post
            or not self.cfg.allowed_channel_username
            or chat_username == self.cfg.allowed_channel_username
        )
        if is_channel_post and not is_allowed_channel:
            return
        if chat_username and chat_username == self.cfg.allowed_channel_username:
            self._remember_public_report_chat(chat_id)

        # Игнорируем системные сообщения о входе/выходе и смене заголовка/фото.
        if message.get("new_chat_members") or message.get("left_chat_member"):
            return
        if message.get("group_chat_created") or message.get("supergroup_chat_created") or message.get("channel_chat_created"):
            return

        text = (message.get("text") or message.get("caption") or "").strip()
        actor_username = normalize_username(author_username)
        is_allowed = self._is_allowed_user(actor_username)
        is_private = chat_type == "private"
        if not is_allowed:
            if is_private:
                self._safe_send(chat_id, "Извините, доступ к этому агенту пока не выдан. Обратитесь к Айдару.", reply_to=message_id)
            return
        if self._is_allowed_player(actor_username) and not is_private:
            return

        self._ensure_user_session(actor_username)
        if is_private:
            self._remember_private_chat(actor_username, chat_id)
        history_path = self._current_history_file_for_user(actor_username)
        if self._is_allowed_player(actor_username):
            self._send_player_welcome_once(chat_id, message_id, actor_username)

        if not text:
            if message.get("voice"):
                self._enqueue_voice_job(
                    chat_id,
                    message_id,
                    actor_username,
                    message["voice"].get("file_id"),
                    duration_seconds=message["voice"].get("duration"),
                    telegram_file_size=message["voice"].get("file_size"),
                    media_type="voice",
                    update_type=update_type,
                    chat_username=chat_username,
                    chat_title=chat_title,
                    author_signature=author_signature,
                    chat_type=chat_type,
                )
                return
            if message.get("audio"):
                self._enqueue_voice_job(
                    chat_id,
                    message_id,
                    actor_username,
                    message["audio"].get("file_id"),
                    duration_seconds=message["audio"].get("duration"),
                    telegram_file_size=message["audio"].get("file_size"),
                    media_type="audio",
                    update_type=update_type,
                    chat_username=chat_username,
                    chat_title=chat_title,
                    author_signature=author_signature,
                    chat_type=chat_type,
                )
                return
            self._safe_send(chat_id, "Поддерживаются текст, voice и audio.", reply_to=message_id)
            return

        if text.startswith("/"):
            self._handle_command(chat_id, message_id, actor_username, text)
            return

        if self._handle_task_center_text(chat_id, message_id, actor_username, text):
            return

        self._append_history(history_path, "incoming_text", {
            "chatId": chat_id,
            "messageId": message_id,
            "updateType": update_type,
            "chatType": chat_type,
            "chatUsername": chat_username,
            "chatTitle": chat_title,
            "username": actor_username,
            "authorSignature": author_signature,
            "text": text,
        })
        job = self._build_job_base(chat_id, message_id, actor_username, str(history_path))
        job["type"] = "text"
        job["text"] = text
        job["update_type"] = update_type
        job["chat_type"] = chat_type
        job["chat_username"] = chat_username
        job["chat_title"] = chat_title
        job["author_signature"] = author_signature
        job["role"] = "owner" if self._is_owner(actor_username) else "player"
        job["player_name"] = self._player_name(actor_username) if job["role"] == "player" else ""
        with self.queue_lock:
            self.queue.append(job)
            self._persist_queue()
        if chat_type == "private":
            self._ensure_job_status_message(
                job["id"],
                chat_id,
                message_id,
                f"Задача #{job['num']} получена.\nСтатус: в очереди.",
            )
        else:
            self._safe_send(chat_id, f"Принял задачу #{job['num']}", reply_to=message_id)

    def _enqueue_voice_job(
        self,
        chat_id: int,
        message_id: int,
        username: str,
        file_id: str | None,
        *,
        duration_seconds: int | None = None,
        telegram_file_size: int | None = None,
        media_type: str = "voice",
        update_type: str = "message",
        chat_username: str = "",
        chat_title: str = "",
        author_signature: str = "",
        chat_type: str = "",
    ) -> None:
        if not file_id:
            self._safe_send(chat_id, "Не удалось прочитать file_id голосового.", reply_to=message_id)
            return
        history_path = self._current_history_file_for_user(username)
        self._append_history(history_path, "incoming_voice", {
            "chatId": chat_id,
            "messageId": message_id,
            "updateType": update_type,
            "chatType": chat_type,
            "chatUsername": chat_username,
            "chatTitle": chat_title,
            "username": username,
            "authorSignature": author_signature,
            "fileId": file_id,
            "mediaType": media_type,
            "durationSeconds": duration_seconds,
            "fileSize": telegram_file_size,
        })
        job = self._build_job_base(chat_id, message_id, username, str(history_path))
        job["type"] = "voice"
        job["telegram_file_id"] = file_id
        job["telegram_media_type"] = media_type
        job["telegram_duration_seconds"] = duration_seconds or 0
        job["telegram_file_size"] = telegram_file_size or 0
        job["update_type"] = update_type
        job["chat_type"] = chat_type
        job["chat_username"] = chat_username
        job["chat_title"] = chat_title
        job["author_signature"] = author_signature
        job["role"] = "owner" if self._is_owner(username) else "player"
        job["player_name"] = self._player_name(username) if job["role"] == "player" else ""
        with self.queue_lock:
            self.queue.append(job)
            self._persist_queue()
        if chat_type == "private":
            self._ensure_job_status_message(
                job["id"],
                chat_id,
                message_id,
                f"Voice для задачи #{job['num']} получен.\nСтатус: в очереди.",
            )
        else:
            self._safe_send(chat_id, f"Принял voice в задачу #{job['num']}", reply_to=message_id)

    def _build_job_base(self, chat_id: int, message_id: int, username: str, history_file: str) -> dict[str, Any]:
        with self.queue_lock:
            num = int(self.state.get("next_job_number", 1))
            self.state["next_job_number"] = num + 1
            self._persist_state()
        return {
            "id": str(uuid.uuid4()),
            "num": num,
            "status": "pending",
            "type": "text",
            "chat_id": chat_id,
            "message_id": message_id,
            "username": username,
            "update_type": "message",
            "chat_type": "",
            "chat_username": "",
            "chat_title": "",
            "author_signature": "",
            "role": "owner",
            "player_name": "",
            "text": "",
            "telegram_file_id": "",
            "telegram_media_type": "",
            "history_file": history_file,
            "attempts": 0,
            "retry_reason": "",
            "last_error": "",
            "created_at": now_iso(),
            "updated_at": now_iso(),
            "active_since": None,
            "status_message_id": None,
            "status_message_text": "",
        }

    def _handle_task_center_text(self, chat_id: int, message_id: int, username: str, text: str) -> bool:
        source_text = (text or "").strip()
        lower = source_text.lower()
        is_owner = self._is_owner(username)

        if re.search(r"\b(покажи|список|какие)\b.*\b(задач|задачи|предложени)", lower):
            target = username
            explicit_target = self._find_user_by_text(source_text)
            if is_owner and explicit_target:
                target = explicit_target
            self._safe_send(chat_id, self._format_task_items(target), reply_to=message_id)
            return True

        if is_owner:
            assign_match = re.search(
                r"(?:поставь|добавь|создай|запиши)\s+(?:задачу|задание)\s+(.+?)(?::|\s+-\s+|\s+—\s+)(.+)",
                source_text,
                flags=re.IGNORECASE | re.DOTALL,
            )
            if assign_match:
                target = self._find_user_by_text(assign_match.group(1))
                body = assign_match.group(2).strip()
                if target and body:
                    item = self._create_task_item(
                        kind="task",
                        title=body,
                        text=body,
                        source_username=username,
                        target_username=target,
                        source_message_id=message_id,
                        source_chat_id=chat_id,
                    )
                    self._notify_user_about_task_item(target, item)
                    self._safe_send(
                        chat_id,
                        f"Задача добавлена для {self._display_name(target)}: {item['id']} — {item['title']}",
                        reply_to=message_id,
                    )
                    return True

            status_match = re.search(r"\b(одобрить|отклонить|доработать|закрыть|сделано|закрыта)\b(?:\s+(.+))?", lower, flags=re.IGNORECASE)
            if status_match and ("задач" in lower or "предложени" in lower or re.search(r"tc-\d+", lower, flags=re.IGNORECASE)):
                action = status_match.group(1)
                tail = status_match.group(2) or ""
                status = {
                    "одобрить": "approved",
                    "отклонить": "rejected",
                    "доработать": "needs_work",
                    "закрыть": "done",
                    "сделано": "done",
                    "закрыта": "done",
                }.get(action, "new")
                id_match = re.search(r"tc-\d+", source_text, flags=re.IGNORECASE)
                item = None
                if id_match:
                    item = self._update_task_item_status(id_match.group(0), status)
                else:
                    source_user = self._find_user_by_text(tail)
                    item = self._find_first_task_item(
                        source_username=source_user,
                        target_username=username,
                        kind="proposal" if "предложени" in lower else "",
                    )
                    if item:
                        item = self._update_task_item_status(str(item.get("id")), status)
                if item:
                    label = TASK_STATUS_LABELS.get(status, status)
                    self._safe_send(chat_id, f"{item.get('id')} обновлена: {label}.", reply_to=message_id)
                    source_user = normalize_username(item.get("source_username"))
                    if source_user and source_user != username:
                        self._notify_user_about_task_item(source_user, item)
                    return True

        if not is_owner:
            proposal_match = re.match(r"\s*(?:предложение|идея|заявка)\s*[:：-]\s*(.+)", source_text, flags=re.IGNORECASE | re.DOTALL)
            if proposal_match:
                body = proposal_match.group(1).strip()
                if body:
                    item = self._create_task_item(
                        kind="proposal",
                        title=body,
                        text=body,
                        opinion="Нужно решение Айдара: одобрить, отклонить или отправить на доработку.",
                        source_username=username,
                        target_username=self.cfg.allowed_username,
                        source_message_id=message_id,
                        source_chat_id=chat_id,
                    )
                    self._notify_user_about_task_item(self.cfg.allowed_username, item)
                    self._safe_send(
                        chat_id,
                        f"Предложение отправлено Айдару как {item['id']}. Статус: новая.",
                        reply_to=message_id,
                    )
                    return True

        return False

    def _handle_command(self, chat_id: int, message_id: int, username: str, text: str) -> None:
        lower = text.lower()
        command = lower.split(maxsplit=1)[0].split("@", 1)[0]
        is_owner = self._is_owner(username)
        if command in ("/start", "/help"):
            self._safe_send(chat_id, self._help_text(is_owner=is_owner), reply_to=message_id)
            return
        if command == "/settings":
            self._safe_send(chat_id, self._settings_text(username), reply_to=message_id)
            return
        if command == "/status":
            self._safe_send(chat_id, self._status_text(username), reply_to=message_id)
            return
        if command == "/queue":
            self._safe_send(chat_id, self._queue_text(), reply_to=message_id)
            return
        if command in ("/tasks", "/my_tasks"):
            parts = text.split(maxsplit=1)
            target = username
            if is_owner and len(parts) > 1:
                parsed = self._find_user_by_text(parts[1])
                if parsed:
                    target = parsed
            self._safe_send(chat_id, self._format_task_items(target), reply_to=message_id)
            return
        if command == "/voice_on":
            self._set_voice_replies_enabled(username, True)
            self._append_history_event("voice_replies_enabled", {"username": normalize_username(username)}, username=username)
            self._safe_send(chat_id, "Озвучивание финальных ответов включено для вашего пользователя.", reply_to=message_id)
            return
        if command == "/voice_off":
            self._set_voice_replies_enabled(username, False)
            self._append_history_event("voice_replies_disabled", {"username": normalize_username(username)}, username=username)
            self._safe_send(chat_id, "Озвучивание финальных ответов выключено для вашего пользователя.", reply_to=message_id)
            return
        if command in ("/voice_status", "/voice_rewrite_status"):
            self._safe_send(chat_id, self._status_text(username), reply_to=message_id)
            return
        if command == "/voice_rewrite_on":
            self._set_voice_rewrite_enabled(username, True)
            self._append_history_event("voice_rewrite_enabled", {"username": normalize_username(username)}, username=username)
            self._safe_send(chat_id, "Адаптация текста перед озвучкой включена для вашего пользователя.", reply_to=message_id)
            return
        if command == "/voice_rewrite_off":
            self._set_voice_rewrite_enabled(username, False)
            self._append_history_event("voice_rewrite_disabled", {"username": normalize_username(username)}, username=username)
            self._safe_send(chat_id, "Адаптация текста перед озвучкой выключена для вашего пользователя.", reply_to=message_id)
            return
        if command == "/single_message_on":
            self._set_single_status_message_enabled(username, True)
            self._append_history_event("single_status_message_enabled", {"username": normalize_username(username)}, username=username)
            self._safe_send(chat_id, "Режим одного редактируемого сообщения в личке включён для вашего пользователя.", reply_to=message_id)
            return
        if command == "/single_message_off":
            self._set_single_status_message_enabled(username, False)
            self._append_history_event("single_status_message_disabled", {"username": normalize_username(username)}, username=username)
            self._safe_send(chat_id, "Режим одного редактируемого сообщения в личке выключен. Бот будет отправлять отдельные сообщения по этапам.", reply_to=message_id)
            return
        if command == "/new":
            archived = self._rotate_history("command_new", username)
            self._safe_send(chat_id, f"История очищена. Новый диалог начат.\nАрхив: {archived.name}", reply_to=message_id)
            return
        if command in ("/restart_service", "/restart"):
            if not is_owner:
                self._safe_send(chat_id, "Команда недоступна.", reply_to=message_id)
                return
            self._append_history_event("restart_service_deferred_requested", {
                "chatId": chat_id,
                "messageId": message_id,
                "username": username,
            }, username=username)
            self._safe_send(
                chat_id,
                "Отложенный рестарт принят. Если задача сейчас выполняется, сервис перезапустится после её завершения и до следующей задачи.",
                reply_to=message_id,
            )
            self._request_deferred_restart()
            return
        if command in ("/restart_hard", "/restart_now", "/restart_force"):
            if not is_owner:
                self._safe_send(chat_id, "Команда недоступна.", reply_to=message_id)
                return
            self._append_history_event("restart_service_hard_requested", {
                "chatId": chat_id,
                "messageId": message_id,
                "username": username,
            }, username=username)
            self._safe_send(
                chat_id,
                "Выполняю жёсткий рестарт сервиса прямо сейчас. Активная задача, если есть, будет прервана и после старта вернётся в очередь.",
                reply_to=message_id,
            )
            self._schedule_self_restart("hard_restart_requested", force=True)
            return
        if command == "/stop":
            stopped = self._cancel_active_job("stopped_by_user")
            if stopped:
                self._safe_send(chat_id, "Текущая задача остановлена и удалена из очереди.", reply_to=message_id)
            else:
                self._safe_send(chat_id, "Сейчас нет активной задачи.", reply_to=message_id)
            return
        if command == "/cancel":
            parts = text.split(maxsplit=1)
            if len(parts) < 2:
                self._safe_send(chat_id, "Использование: /cancel <id|all>", reply_to=message_id)
                return
            arg = parts[1].strip()
            if arg.lower() == "all":
                with self.queue_lock:
                    self.stop_current_job = True
                    self._stop_active_codex_process()
                    count = len(self.queue)
                    self.queue = []
                    self._persist_queue()
                self._safe_send(chat_id, f"Удалено задач из очереди: {count}", reply_to=message_id)
                return
            cancelled = self._cancel_by_id_prefix(arg)
            self._safe_send(chat_id, f"Задача удалена: {arg}" if cancelled else f"Задача не найдена: {arg}", reply_to=message_id)
            return

    def _help_text(self, *, is_owner: bool) -> str:
        lines = [
            "Доступные команды:",
            "/status — активная задача и размер очереди",
            "/settings — текущие настройки и команды для их изменения",
            "/queue — список задач в очереди",
            "/tasks — список ваших задач и предложений",
            "/stop — остановить текущую задачу",
            "/cancel <id|all> — удалить задачу по id (префикс) или все",
            "/new — архивировать историю и начать новую Codex-сессию",
            "/help — эта справка",
        ]
        if is_owner:
            lines.insert(-1, "/tasks <пользователь> — список задач игрока")
            lines.insert(-1, "/restart — отложенный рестарт после текущей задачи")
            lines.insert(-1, "/restart_hard — жёсткий рестарт прямо сейчас")
        return "\n".join(lines)

    def _settings_text(self, username: str) -> str:
        voice_status = "включено" if self._voice_replies_enabled(username) else "выключено"
        rewrite_status = "включена" if self._voice_rewrite_enabled(username) else "выключена"
        single_message_status = "включён" if self._single_status_message_enabled(username) else "выключен"
        lines = [
            "Текущие настройки:",
            f"Озвучивание финальных ответов: {voice_status}",
            f"Адаптация текста перед озвучкой: {rewrite_status}",
            f"Режим одного редактируемого сообщения в личке: {single_message_status}",
            "",
            "Команды настроек:",
            "/voice_on — включить озвучивание",
            "/voice_off — выключить озвучивание",
            "/voice_rewrite_on — адаптировать текст перед озвучкой",
            "/voice_rewrite_off — озвучивать обычный текст без адаптации",
            "/single_message_on — один редактируемый ответ в личке",
            "/single_message_off — отдельные сообщения по этапам и финалу",
        ]
        return "\n".join(lines)

    def _status_text(self, username: str) -> str:
        with self.queue_lock:
            active = next((j for j in self.queue if j.get("status") == "active"), None)
            pending = sum(1 for j in self.queue if j.get("status") == "pending")
        voice_status = "включено" if self._voice_replies_enabled(username) else "выключено"
        rewrite_status = "включена" if self._voice_rewrite_enabled(username) else "выключена"
        single_message_status = "включён" if self._single_status_message_enabled(username) else "выключен"
        settings_text = (
            f"Голосовые ответы: {voice_status}\n"
            f"Адаптация текста перед озвучкой: {rewrite_status}\n"
            f"Режим одного сообщения в личке: {single_message_status}"
        )
        restart_text = "\nОтложенный рестарт: ожидает завершения текущей задачи" if self.restart_requested else ""
        if not active:
            return f"Статус: активной задачи нет.\nВ очереди pending: {pending}\n{settings_text}{restart_text}"
        elapsed = int(time.time() - (self.active_job_started_at or time.time()))
        return (
            f"Статус: активная задача #{active.get('num', '?')}\n"
            f"Тип: {active.get('type', 'text')}\n"
            f"Попытка: {int(active.get('attempts', 0)) + 1}/{self.cfg.max_retries}\n"
            f"Выполняется: {elapsed}с\n"
            f"Pending: {pending}\n"
            f"{settings_text}{restart_text}"
        )

    def _queue_text(self) -> str:
        with self.queue_lock:
            items = list(self.queue)
        if not items:
            return "Очередь пуста."
        lines = [f"Очередь: {len(items)}"]
        for i, job in enumerate(items[:10], start=1):
            lines.append(
                f"{i}) #{job.get('num', '?')} [{job.get('status')}] {job.get('type')} attempts={job.get('attempts', 0)}"
            )
        if len(items) > 10:
            lines.append(f"...и ещё {len(items) - 10} задач")
        return "\n".join(lines)

    def _cancel_active_job(self, reason: str) -> bool:
        with self.queue_lock:
            active = next((j for j in self.queue if j.get("status") == "active"), None)
            if not active:
                return False
            self.stop_current_job = True
            self._stop_active_codex_process()
            self.queue = [j for j in self.queue if j.get("id") != active.get("id")]
            self._persist_queue()
        self._append_history_event("job_stopped_by_user", {"jobId": active.get("id"), "reason": reason})
        return True

    def _cancel_by_id_prefix(self, prefix: str) -> bool:
        prefix = prefix.strip().lower()
        normalized_num = prefix.lstrip("#")
        with self.queue_lock:
            target = next(
                (
                    j for j in self.queue
                    if str(j.get("id", "")).lower().startswith(prefix)
                    or str(j.get("num", "")).lower() == normalized_num
                ),
                None
            )
            if not target:
                return False
            if target.get("status") == "active":
                self.stop_current_job = True
                self._stop_active_codex_process()
            self.queue = [j for j in self.queue if j.get("id") != target.get("id")]
            self._persist_queue()
        return True

    def _worker_loop(self) -> None:
        while not self.stop_event.is_set():
            if self.restart_requested:
                self._exit_for_restart("deferred_restart_before_next_job")
                return
            job = None
            with self.queue_lock:
                for item in self.queue:
                    if item.get("status") == "pending":
                        item["status"] = "active"
                        item["active_since"] = now_iso()
                        item["updated_at"] = now_iso()
                        self.active_job_id = item.get("id")
                        self.active_job_started_at = time.time()
                        job = dict(item)
                        self._persist_queue()
                        break
            if not job:
                time.sleep(0.5)
                continue

            self.stop_current_job = False
            self._process_job(job)
            self.active_job_id = None
            self.active_job_started_at = None
            if self.restart_requested:
                self._exit_for_restart("deferred_restart_after_job")
                return

    def _process_job(self, job: dict[str, Any]) -> None:
        job_id = job["id"]
        job_num = job.get("num", "?")
        chat_id = int(job["chat_id"])
        message_id = int(job["message_id"])
        history_path = Path(job["history_file"])
        private_single_message = (
            (job.get("chat_type") or "") == "private"
            and self._single_status_message_enabled(job.get("username") or "")
        )
        self._set_job_status_text(job, f"Задача #{job_num} в работе.\nСтатус: выполняется.")
        try:
            if job.get("type") == "voice":
                self._set_job_status_text(job, f"Задача #{job_num} в работе.\nСтатус: распознаю voice.")
                recognized = self._transcribe_voice_job(
                    job,
                    status_cb=lambda note: self._set_job_status_text(
                        job,
                        f"Задача #{job_num} в работе.\nСтатус: {note}",
                    ),
                )
                job["text"] = recognized
                self._append_history(history_path, "voice_transcription", {"jobId": job_id, "jobNum": job_num, "text": recognized})
                preview = recognized.strip()
                if len(preview) > 800:
                    preview = preview[:800].rstrip() + " ...[обрезано]"
                self._set_job_status_text(
                    job,
                    f"Задача #{job_num} в работе.\nСтатус: voice распознан, отправляю в Codex.\n\nТекст:\n{preview}",
                )

            prompt = self._build_prompt(job)
            self._append_history(history_path, "codex_request", {"jobId": job_id, "prompt": prompt})
            self._set_job_status_text(job, f"Задача #{job_num} в работе.\nСтатус: выполняю через Codex.")
            answer = self._run_codex(prompt, job)
            if private_single_message:
                parts = split_final_private_text(answer)
                self._set_job_status_text(job, parts[0])
                if len(parts) > 1:
                    self._safe_send(chat_id, parts[1], reply_to=message_id)
            else:
                for chunk in split_long_text(answer):
                    self._safe_send(chat_id, chunk, reply_to=message_id)
            self._append_history(history_path, "codex_response", {"jobId": job_id, "text": answer})
            self._send_private_job_public_report(job, answer)
            self._send_task_center_reminder(job)
            if self._voice_replies_enabled(job.get("username") or ""):
                self._send_voice_reply_for_answer(job, answer, history_path, job_id)
            self._mark_job_done(job_id)
        except Exception as e:
            if self.stop_current_job:
                self._append_history(history_path, "job_stopped", {"jobId": job_id, "reason": str(e)})
                self._set_job_status_text(job, f"Задача #{job_num} остановлена.")
                self._mark_job_removed(job_id)
                self.stop_current_job = False
                return
            if isinstance(e, VoiceTranscriptionError):
                self._append_history(history_path, "voice_transcription_failed", {
                    "jobId": job_id,
                    "jobNum": job_num,
                    "stage": e.stage,
                    "retryable": e.retryable,
                    "error": e.user_message,
                    "detail": e.detail,
                })
            self._handle_job_failure(job, e)

    def _build_prompt(self, job: dict[str, Any]) -> str:
        retry_block = ""
        retry_reason = (job.get("retry_reason") or "").strip()
        if retry_reason:
            retry_block = f"\n\nПометка retry: {retry_reason}"
        role = (job.get("role") or "owner").strip().lower()
        player_block = ""
        if role == "player":
            player_name = (job.get("player_name") or "").strip()
            player_dir = self.cfg.codex_workdir / "Players" / (job.get("username") or "")
            player_block = (
                "\n\nРежим игрока (обязательно):\n"
                f"- Пользователь: {player_name} (@{job.get('username')}).\n"
                f"- Рабочая папка игрока: {player_dir}\n"
                "- Код проекта не изменять.\n"
                "- Можно отвечать на вопросы по проекту, предлагать идеи и готовить ТЗ.\n"
                "- Если нужны правки кода, описывать предложение текстом и сохранять материалы только в папке игрока."
            )
        return (
            "Пришло сообщение в Telegram.\n"
            f"Тип: {job.get('type')}\n"
            f"Источник Telegram: {job.get('update_type', 'message')}\n"
            f"Тип чата: {job.get('chat_type') or ''}\n"
            f"Канал/чат: @{job.get('chat_username') or ''} {job.get('chat_title') or ''}\n"
            f"Username отправителя: @{job.get('username')}\n"
            f"Подпись автора в Telegram: {job.get('author_signature') or ''}\n"
            "Текст для обработки:\n"
            f"{job.get('text')}\n\n"
            f"История диалога (JSONL): {job.get('history_file')}\n"
            f"Инструкции агента: {self.cfg.agent_instructions_file}\n"
            f"Работай в рабочем проекте аккуратно и верни только текст ответа пользователю.{player_block}{retry_block}"
        )

    def _run_codex(self, prompt: str, job: dict[str, Any]) -> str:
        username = job.get("username") or self.cfg.allowed_username
        thread_id = self._codex_thread_id_for_user(username)
        try:
            return self._run_codex_once(prompt, job, thread_id=thread_id)
        except RuntimeError as e:
            if not thread_id or not self._is_missing_codex_session_error(str(e)):
                raise
            self._set_codex_thread_id_for_user(username, "")
            self._append_history(
                Path(job["history_file"]),
                "system_event",
                {
                    "event": "codex_thread_reset",
                    "reason": "missing_session",
                    "username": normalize_username(username),
                    "oldThreadId": thread_id,
                },
            )
            return self._run_codex_once(prompt, job, thread_id="")

    def _run_codex_once(self, prompt: str, job: dict[str, Any], *, thread_id: str) -> str:
        output_lines: list[str] = []
        job_id = str(job["id"])
        job_num = job.get("num", "?")
        username = job.get("username") or self.cfg.allowed_username
        with tempfile.NamedTemporaryFile(prefix="shine-codex-last-message-", suffix=".txt", delete=False) as tmp:
            output_file = Path(tmp.name)

        cmd = [
            str(self.cfg.codex_bin),
            "exec",
            "--dangerously-bypass-approvals-and-sandbox",
            "--json",
            "-C", str(self.cfg.codex_workdir),
            "-o", str(output_file),
        ]
        if thread_id:
            cmd.extend(["resume", thread_id])
        cmd.append(prompt)
        mode = f"resume {thread_id}" if thread_id else "new"
        print(f"[py-bot] codex exec start job={job_id[:8]} mode={mode}", flush=True)
        process = subprocess.Popen(
            cmd,
            stdin=subprocess.DEVNULL,
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT,
            text=True,
            encoding="utf-8",
            errors="replace",
            bufsize=1,
        )
        with self.active_process_lock:
            self.active_process = process

        self.last_heartbeat_at = 0.0
        last_user_note = ""
        last_user_note_at = 0.0
        codex_started_at = time.time()
        last_job_message_at = codex_started_at
        seen_thread_id = ""

        def on_line(line: str) -> None:
            nonlocal last_user_note, last_user_note_at, last_job_message_at, seen_thread_id
            output_lines.append(line)
            current_thread_id = self._extract_codex_thread_id(line)
            if current_thread_id:
                seen_thread_id = current_thread_id
            note = self._extract_codex_user_note(line)
            now = time.time()
            if note and note != last_user_note and now - last_user_note_at > 8:
                self._set_job_status_text(job, f"Задача #{job_num} в работе.\nСтатус: {note}")
                last_user_note = note
                last_user_note_at = now
                last_job_message_at = now

        reader_done = threading.Event()

        def reader() -> None:
            if not process.stdout:
                reader_done.set()
                return
            for line in process.stdout:
                on_line(line.rstrip("\n"))
            reader_done.set()

        t = threading.Thread(target=reader, name=f"codex-reader-{job_id[:8]}", daemon=True)
        t.start()

        try:
            deadline = time.time() + self.cfg.codex_timeout_seconds
            return_code = None
            while return_code is None:
                return_code = process.poll()
                now = time.time()
                if return_code is not None:
                    break
                if now >= deadline:
                    process.kill()
                    t.join(timeout=2)
                    raise RuntimeError(f"Codex timeout after {self.cfg.codex_timeout_seconds}s")
                if now - codex_started_at >= 120 and now - last_job_message_at >= 120:
                    elapsed = self._format_duration(int(now - codex_started_at))
                    self._set_job_status_text(
                        job,
                        f"Задача #{job_num} в работе.\nСтатус: выполняется уже {elapsed}, от Codex давно нет новых сообщений.",
                    )
                    last_job_message_at = now
                    self.last_heartbeat_at = now
                time.sleep(1)
        finally:
            with self.active_process_lock:
                self.active_process = None

        reader_done.wait(timeout=2)

        if return_code != 0:
            tail = "\n".join(output_lines[-40:])
            raise RuntimeError(f"Codex exited with code {return_code}. Output tail:\n{tail}")

        if seen_thread_id and seen_thread_id != thread_id:
            self._set_codex_thread_id_for_user(username, seen_thread_id)

        if output_file.exists():
            answer = output_file.read_text(encoding="utf-8").strip()
            try:
                output_file.unlink(missing_ok=True)
            except Exception:
                pass
            if answer:
                return answer

        fallback = self._extract_fallback_message(output_lines)
        if not fallback:
            raise RuntimeError("Codex returned empty response")
        return fallback

    def _stop_active_codex_process(self) -> bool:
        with self.active_process_lock:
            process = self.active_process
        if process is None:
            return False
        if process.poll() is not None:
            return False
        process.terminate()
        try:
            process.wait(timeout=2)
        except subprocess.TimeoutExpired:
            process.kill()
        return True

    def _handle_job_failure(self, job: dict[str, Any], err: Exception) -> None:
        job_id = job["id"]
        job_num = job.get("num", "?")
        error_text = str(err).strip() or err.__class__.__name__
        user_error_text = self._user_error_text(err)
        retryable = not isinstance(err, VoiceTranscriptionError) or err.retryable
        log_error_text = err.log_text() if isinstance(err, VoiceTranscriptionError) else error_text
        print(f"[py-bot] Ошибка job={job_id[:8]}: {log_error_text}", flush=True)
        print(traceback.format_exc(), flush=True)

        with self.queue_lock:
            target = next((j for j in self.queue if j.get("id") == job_id), None)
            if not target:
                return
            attempts = int(target.get("attempts", 0)) + 1
            target["attempts"] = attempts
            target["last_error"] = error_text[:1000]
            target["updated_at"] = now_iso()
            if retryable and attempts < self.cfg.max_retries:
                target["status"] = "pending"
                target["retry_reason"] = error_text[:200]
                self._persist_queue()
                will_retry = True
            else:
                self.queue = [j for j in self.queue if j.get("id") != job_id]
                self._persist_queue()
                will_retry = False

        if will_retry:
            self._set_job_status_text(
                job,
                f"{user_error_text}\nПовторю задачу #{job_num}: попытка {attempts + 1}/{self.cfg.max_retries}.",
            )
        else:
            self._set_job_status_text(job, f"{user_error_text}\nЗадача #{job_num} остановлена.")

    def _user_error_text(self, err: Exception) -> str:
        if isinstance(err, VoiceTranscriptionError):
            return f"Не удалось распознать голосовое: {err.user_message}"
        error_text = str(err).strip() or err.__class__.__name__
        return f"Ошибка выполнения задачи: {error_text}"

    def _mark_job_done(self, job_id: str) -> None:
        with self.queue_lock:
            self.queue = [j for j in self.queue if j.get("id") != job_id]
            self._persist_queue()

    def _mark_job_removed(self, job_id: str) -> None:
        with self.queue_lock:
            self.queue = [j for j in self.queue if j.get("id") != job_id]
            self._persist_queue()

    def _send_task_center_reminder(self, job: dict[str, Any]) -> None:
        if job.get("chat_type") != "private":
            return
        username = job.get("username") or ""
        reminder = self._task_center_counts_text(username)
        if not reminder:
            return
        self._safe_send(int(job["chat_id"]), reminder, reply_to=int(job["message_id"]))

    def _remember_public_report_chat(self, chat_id: int) -> None:
        if self.state.get("public_report_chat_id") == chat_id:
            return
        self.state["public_report_chat_id"] = chat_id
        self.state["updated_at"] = now_iso()
        self._persist_state()

    def _public_report_chat_id(self) -> int | str | None:
        chat_id = self.state.get("public_report_chat_id")
        if isinstance(chat_id, int):
            return self._resolve_chat_id(chat_id)
        if self.cfg.allowed_channel_username:
            return f"@{self.cfg.allowed_channel_username}"
        return None

    def _send_private_job_public_report(self, job: dict[str, Any], answer: str) -> None:
        if job.get("chat_type") != "private":
            return
        report_chat_id = self._public_report_chat_id()
        if report_chat_id is None:
            return

        job_num = job.get("num", "?")
        source_text = (job.get("text") or "").strip()
        if not source_text:
            source_text = "(пустой текст запроса)"
        role = (job.get("role") or "owner").strip().lower()
        author_label = "Айдар"
        if role == "player":
            player_name = (job.get("player_name") or "").strip() or job.get("username") or "Игрок"
            author_label = f"{player_name} (@{job.get('username')})"
        if job.get("type") == "voice":
            voice_file_id = (job.get("telegram_file_id") or "").strip()
            media_type = (job.get("telegram_media_type") or "voice").strip()
            request_caption = self._trim_telegram_caption(
                f"{author_label} сделал {media_type}-запрос, задача #{job_num}.\n\n"
                f"Распознанный текст:\n{source_text}"
            )
            request_message_id = None
            if voice_file_id:
                request_message_id = self._safe_send_telegram_file(
                    report_chat_id,
                    voice_file_id,
                    media_type=media_type,
                    caption=request_caption,
                )
            if request_message_id is None:
                request_message_id = self._safe_send(report_chat_id, request_caption)
        else:
            request_report = (
                f"{author_label} сделал запрос, задача #{job_num}.\n\n"
                f"{source_text}"
            )
            request_message_id = self._safe_send(report_chat_id, request_report)
        if request_message_id is None:
            return

        answer_text = (answer or "").strip() or "(пустой ответ)"
        answer_chunks = split_long_text(f"Ответ на задачу #{job_num}:\n\n{answer_text}")
        for chunk in answer_chunks:
            self._safe_send(report_chat_id, chunk, reply_to=request_message_id)

    @staticmethod
    def _trim_telegram_caption(text: str, limit: int = 1000) -> str:
        text = (text or "").strip()
        if len(text) <= limit:
            return text
        return text[:limit].rstrip() + "\n...[обрезано]"

    def _safe_send_telegram_file(
        self,
        chat_id: int | str,
        file_id: str,
        *,
        media_type: str = "voice",
        caption: str = "",
        reply_to: int | None = None,
    ) -> int | None:
        file_id = (file_id or "").strip()
        if not file_id:
            return None
        caption = self._trim_telegram_caption(caption)
        resolved_chat_id: int | str = self._resolve_chat_id(chat_id) if isinstance(chat_id, int) else chat_id
        resolved_reply_to = reply_to if resolved_chat_id == chat_id or isinstance(chat_id, str) else None

        def send(target_chat_id: int | str, target_reply_to: int | None) -> dict[str, Any]:
            if media_type == "audio":
                return self.telegram.send_audio(target_chat_id, file_id, caption=caption, reply_to_message_id=target_reply_to)
            return self.telegram.send_voice(target_chat_id, file_id, caption=caption, reply_to_message_id=target_reply_to)

        try:
            sent = send(resolved_chat_id, resolved_reply_to)
            result = sent.get("result") or {}
            message_id = result.get("message_id")
            return message_id if isinstance(message_id, int) else None
        except Exception as e:
            migrate_to_chat_id = self._extract_migrate_to_chat_id(str(e))
            if migrate_to_chat_id is not None:
                if isinstance(resolved_chat_id, int):
                    self._remember_chat_migration(resolved_chat_id, migrate_to_chat_id, "send_file_error")
                try:
                    sent = send(migrate_to_chat_id, None)
                    result = sent.get("result") or {}
                    message_id = result.get("message_id")
                    return message_id if isinstance(message_id, int) else None
                except Exception as retry_error:
                    print(f"[py-bot] sendFile retry after migration error: {retry_error}", flush=True)
                    return None
            print(f"[py-bot] sendFile error: {e}", flush=True)
            return None

    def _safe_send_voice_upload(
        self,
        chat_id: int | str,
        voice_bytes: bytes,
        filename: str,
        *,
        caption: str = "",
        reply_to: int | None = None,
    ) -> int | None:
        if not voice_bytes:
            return None
        caption = self._trim_telegram_caption(caption)
        resolved_chat_id: int | str = self._resolve_chat_id(chat_id) if isinstance(chat_id, int) else chat_id
        resolved_reply_to = reply_to if resolved_chat_id == chat_id or isinstance(chat_id, str) else None

        def send(target_chat_id: int | str, target_reply_to: int | None) -> dict[str, Any]:
            return self.telegram.send_voice_upload(
                target_chat_id,
                voice_bytes,
                filename,
                caption=caption,
                reply_to_message_id=target_reply_to,
            )

        try:
            sent = send(resolved_chat_id, resolved_reply_to)
            result = sent.get("result") or {}
            message_id = result.get("message_id")
            return message_id if isinstance(message_id, int) else None
        except Exception as e:
            migrate_to_chat_id = self._extract_migrate_to_chat_id(str(e))
            if migrate_to_chat_id is not None:
                if isinstance(resolved_chat_id, int):
                    self._remember_chat_migration(resolved_chat_id, migrate_to_chat_id, "send_voice_upload_error")
                try:
                    sent = send(migrate_to_chat_id, None)
                    result = sent.get("result") or {}
                    message_id = result.get("message_id")
                    return message_id if isinstance(message_id, int) else None
                except Exception as retry_error:
                    print(f"[py-bot] sendVoiceUpload retry after migration error: {retry_error}", flush=True)
                    return None
            print(f"[py-bot] sendVoiceUpload error: {e}", flush=True)
            return None

    def _safe_send(self, chat_id: int | str, text: str, reply_to: int | None = None) -> int | None:
        text = (text or "").strip()
        if not text:
            return None
        if len(text) > 3900:
            text = text[:3900] + "\n...[обрезано]"
        resolved_chat_id: int | str = self._resolve_chat_id(chat_id) if isinstance(chat_id, int) else chat_id
        resolved_reply_to = reply_to if resolved_chat_id == chat_id or isinstance(chat_id, str) else None
        try:
            sent = self.telegram.send_message(resolved_chat_id, text, reply_to_message_id=resolved_reply_to)
            result = sent.get("result") or {}
            message_id = result.get("message_id")
            return message_id if isinstance(message_id, int) else None
        except Exception as e:
            migrate_to_chat_id = self._extract_migrate_to_chat_id(str(e))
            if migrate_to_chat_id is not None:
                if isinstance(resolved_chat_id, int):
                    self._remember_chat_migration(resolved_chat_id, migrate_to_chat_id, "send_message_error")
                try:
                    sent = self.telegram.send_message(migrate_to_chat_id, text, reply_to_message_id=None)
                    result = sent.get("result") or {}
                    message_id = result.get("message_id")
                    return message_id if isinstance(message_id, int) else None
                except Exception as retry_error:
                    print(f"[py-bot] sendMessage retry after migration error: {retry_error}", flush=True)
                    return None
            print(f"[py-bot] sendMessage error: {e}", flush=True)
            return None

    def _safe_edit(self, chat_id: int | str, message_id: int | None, text: str) -> bool:
        text = (text or "").strip()
        if not text or not message_id:
            return False
        if len(text) > 3900:
            text = text[:3900] + "\n...[обрезано]"
        resolved_chat_id: int | str = self._resolve_chat_id(chat_id) if isinstance(chat_id, int) else chat_id
        try:
            self.telegram.edit_message_text(resolved_chat_id, message_id, text)
            return True
        except Exception as e:
            error_text = str(e)
            if "message is not modified" in error_text:
                return True
            migrate_to_chat_id = self._extract_migrate_to_chat_id(error_text)
            if migrate_to_chat_id is not None:
                if isinstance(resolved_chat_id, int):
                    self._remember_chat_migration(resolved_chat_id, migrate_to_chat_id, "edit_message_error")
                try:
                    self.telegram.edit_message_text(migrate_to_chat_id, message_id, text)
                    return True
                except Exception as retry_error:
                    print(f"[py-bot] editMessageText retry after migration error: {retry_error}", flush=True)
                    return False
            print(f"[py-bot] editMessageText error: {e}", flush=True)
            return False

    def _ensure_job_status_message(self, job_id: str, chat_id: int, reply_to_message_id: int, text: str) -> int | None:
        text = (text or "").strip()
        if not text:
            return None
        with self.queue_lock:
            target = next((j for j in self.queue if j.get("id") == job_id), None)
            if target:
                existing_id = target.get("status_message_id")
                existing_text = (target.get("status_message_text") or "").strip()
            else:
                existing_id = None
                existing_text = ""
        if existing_id and existing_text == text and self._safe_edit(chat_id, int(existing_id), text):
            return int(existing_id)
        if existing_id and self._safe_edit(chat_id, int(existing_id), text):
            with self.queue_lock:
                target = next((j for j in self.queue if j.get("id") == job_id), None)
                if target:
                    target["status_message_text"] = text
                    target["updated_at"] = now_iso()
                    self._persist_queue()
            return int(existing_id)
        message_id = self._safe_send(chat_id, text, reply_to=reply_to_message_id)
        if message_id is not None:
            with self.queue_lock:
                target = next((j for j in self.queue if j.get("id") == job_id), None)
                if target:
                    target["status_message_id"] = message_id
                    target["status_message_text"] = text
                    target["updated_at"] = now_iso()
                    self._persist_queue()
        return message_id

    def _set_job_status_text(self, job: dict[str, Any], text: str) -> None:
        if (job.get("chat_type") or "") != "private":
            self._safe_send(int(job["chat_id"]), text, reply_to=int(job["message_id"]))
            return
        if not self._single_status_message_enabled(job.get("username") or ""):
            self._safe_send(int(job["chat_id"]), text, reply_to=int(job["message_id"]))
            return
        message_id = self._ensure_job_status_message(
            job["id"],
            int(job["chat_id"]),
            int(job["message_id"]),
            text,
        )
        if message_id is not None:
            job["status_message_id"] = message_id
            job["status_message_text"] = text

    def _request_deferred_restart(self) -> None:
        if self.restart_requested:
            return
        self.restart_requested = True
        self._append_history_event("restart_service_deferred_scheduled", {})
        with self.queue_lock:
            has_active = any(j.get("status") == "active" for j in self.queue)
        if not has_active:
            threading.Thread(
                target=lambda: self._exit_for_restart("deferred_restart_no_active_job"),
                name="shine-py-bot-deferred-restart",
                daemon=True,
            ).start()

    def _exit_for_restart(self, reason: str) -> None:
        print(f"[py-bot] restart now: {reason}", flush=True)
        self._append_history_event("restart_service_executing", {"reason": reason})
        time.sleep(0.5)
        os._exit(0)

    def _schedule_self_restart(self, reason: str = "restart_requested", *, force: bool = False) -> None:
        if self.restart_requested and not force:
            return
        self.restart_requested = True

        def restart() -> None:
            time.sleep(1.5)
            print(f"[py-bot] restart requested by Telegram command: {reason}", flush=True)
            if force:
                self._stop_active_codex_process()
            os._exit(0)

        threading.Thread(target=restart, name="shine-py-bot-self-restart", daemon=True).start()

    def _voice_reply_targets(self, job: dict[str, Any]) -> list[tuple[int | str, int | None, str]]:
        chat_id = int(job["chat_id"])
        message_id = int(job["message_id"])
        targets: list[tuple[int | str, int | None, str]] = [(chat_id, message_id, "source")]
        username = job.get("username") or ""

        private_chat_id = self._private_chat_id_for_user(username)
        if private_chat_id is not None and private_chat_id != self._resolve_chat_id(chat_id):
            targets.append((private_chat_id, None, "private"))

        report_chat_id = self._public_report_chat_id()
        if report_chat_id is not None:
            resolved_report_chat_id = self._resolve_chat_id(report_chat_id) if isinstance(report_chat_id, int) else report_chat_id
            resolved_current_chat_id: int | str = self._resolve_chat_id(chat_id)
            if resolved_report_chat_id != resolved_current_chat_id:
                targets.append((report_chat_id, None, "public"))

        deduped: list[tuple[int | str, int | None, str]] = []
        seen: set[str] = set()
        for target_chat_id, target_reply_to, label in targets:
            resolved: int | str = self._resolve_chat_id(target_chat_id) if isinstance(target_chat_id, int) else target_chat_id
            key = str(resolved)
            if key in seen:
                continue
            seen.add(key)
            deduped.append((target_chat_id, target_reply_to, label))
        return deduped

    def _send_voice_reply_for_answer(
        self,
        job: dict[str, Any],
        answer: str,
        history_path: Path,
        job_id: str,
    ) -> None:
        chat_id = int(job["chat_id"])
        message_id = int(job["message_id"])
        job_num = job.get("num", "?")
        username = job.get("username") or ""
        if not self.cfg.openai_api_key:
            note = "не настроен ключ OpenAI для озвучивания."
            self._append_history(history_path, "voice_reply_failed", {"jobId": job_id, "jobNum": job_num, "error": note})
            self._safe_send(chat_id, f"Озвучивание включено, но {note}", reply_to=message_id)
            return

        voice_text = answer
        rewrite_enabled = self._voice_rewrite_enabled(username)
        if rewrite_enabled:
            try:
                voice_text = self._openai_rewrite_text_for_voice(answer)
                self._append_history(history_path, "voice_rewrite_done", {
                    "jobId": job_id,
                    "jobNum": job_num,
                    "model": self.cfg.openai_voice_rewrite_model,
                    "sourceChars": len(answer or ""),
                    "resultChars": len(voice_text or ""),
                })
            except VoiceReplyError as e:
                self._append_history(history_path, "voice_rewrite_failed", {
                    "jobId": job_id,
                    "jobNum": job_num,
                    "model": self.cfg.openai_voice_rewrite_model,
                    "error": str(e),
                })
                self._safe_send(
                    chat_id,
                    f"Не удалось адаптировать ответ #{job_num} для озвучки, озвучиваю обычный текст: {e}",
                    reply_to=message_id,
                )
                voice_text = answer

        chunks = split_text_for_tts(voice_text, self.cfg.openai_tts_chunk_chars)
        if not chunks:
            return

        sent_count = 0
        total = len(chunks)
        targets = self._voice_reply_targets(job)
        print(f"[py-bot] tts start job={str(job_id)[:8]} chunks={total} targets={len(targets)} rewrite={rewrite_enabled}", flush=True)
        for index, chunk in enumerate(chunks, start=1):
            try:
                audio = self._openai_tts(chunk)
            except VoiceReplyError as e:
                self._append_history(history_path, "voice_reply_failed", {
                    "jobId": job_id,
                    "jobNum": job_num,
                    "part": index,
                    "parts": total,
                    "error": str(e),
                })
                self._safe_send(chat_id, f"Не удалось озвучить ответ #{job_num}: {e}", reply_to=message_id)
                return
            caption = f"Озвучка ответа #{job_num}"
            if total > 1:
                caption += f", часть {index}/{total}"
            for target_chat_id, target_reply_to, target_label in targets:
                message_sent = self._safe_send_voice_upload(
                    target_chat_id,
                    audio,
                    f"shine-answer-{job_num}-{index}.ogg",
                    caption=caption,
                    reply_to=target_reply_to,
                )
                if message_sent is None:
                    self._append_history(history_path, "voice_reply_failed", {
                        "jobId": job_id,
                        "jobNum": job_num,
                        "part": index,
                        "parts": total,
                        "target": target_label,
                        "error": "Telegram не принял voice-файл озвучки.",
                    })
                    if target_label == "source":
                        self._safe_send(chat_id, f"Озвучка ответа #{job_num} создана, но Telegram не принял voice-файл.", reply_to=message_id)
                    continue
                sent_count += 1
        self._append_history(history_path, "voice_reply_sent", {
            "jobId": job_id,
            "jobNum": job_num,
            "parts": total,
            "messages": sent_count,
            "targets": len(targets),
            "rewriteEnabled": rewrite_enabled,
        })
        print(f"[py-bot] tts done job={str(job_id)[:8]} sent={sent_count}", flush=True)

    def _openai_rewrite_text_for_voice(self, text: str) -> str:
        source = (text or "").strip()
        if not source:
            return ""
        if len(source) > self.cfg.openai_voice_rewrite_max_input_chars:
            source = source[:self.cfg.openai_voice_rewrite_max_input_chars].rstrip() + "\n\n...[текстовый ответ был длиннее и обрезан для голосовой версии]"
        payload = {
            "model": self.cfg.openai_voice_rewrite_model,
            "messages": [
                {
                    "role": "system",
                    "content": (
                        "Ты готовишь русскую версию финального ответа технического агента для озвучивания. "
                        "Не пересказывай заново и не меняй смысл: сохрани порядок мыслей, итог, предупреждения, статусы и важные действия. "
                        "Мягко убери только то, что плохо воспринимается на слух: длинные пути, хэши, ID, команды, JSON, "
                        "длинные списки файлов, точные размеры и счётчики символов. Если деталь важна, замени её коротким описанием. "
                        "Не добавляй новых фактов. Пиши естественно, без markdown, близко к исходному тексту."
                    ),
                },
                {
                    "role": "user",
                    "content": f"Переделай этот финальный текст в вариант для озвучки:\n\n{source}",
                },
            ],
            "temperature": 0.2,
            "max_tokens": self.cfg.openai_voice_rewrite_max_output_tokens,
        }
        data = json.dumps(payload, ensure_ascii=False).encode("utf-8")
        req = request.Request("https://api.openai.com/v1/chat/completions", method="POST", data=data)
        req.add_header("Authorization", f"Bearer {self.cfg.openai_api_key}")
        req.add_header("Content-Type", "application/json")
        try:
            with request.urlopen(req, timeout=self.cfg.openai_voice_rewrite_timeout_seconds) as resp:
                raw = resp.read().decode("utf-8", errors="replace")
        except TimeoutError as e:
            raise VoiceReplyError(
                f"OpenAI не успел адаптировать текст за {self.cfg.openai_voice_rewrite_timeout_seconds} секунд."
            ) from e
        except error.HTTPError as e:
            detail = e.read().decode("utf-8", errors="replace")
            if e.code == 401:
                message = "OpenAI отклонил ключ API для адаптации текста."
            elif e.code == 429:
                message = "OpenAI временно ограничил адаптацию текста из-за лимита запросов."
            elif e.code >= 500:
                message = "OpenAI временно не смог адаптировать текст."
            else:
                message = f"OpenAI вернул ошибку HTTP {e.code} при адаптации текста."
            if detail:
                message = f"{message} Детали: {detail[:500]}"
            raise VoiceReplyError(message) from e
        except error.URLError as e:
            raise VoiceReplyError(f"не удалось отправить текст в OpenAI для адаптации из-за сетевой ошибки: {e.reason}") from e

        try:
            body = json.loads(raw)
            content = (((body.get("choices") or [{}])[0].get("message") or {}).get("content") or "").strip()
        except Exception as e:
            raise VoiceReplyError("OpenAI вернул неразборчивый ответ при адаптации текста.") from e
        if not content:
            raise VoiceReplyError("OpenAI вернул пустой текст адаптации.")
        return content

    def _openai_tts(self, text: str) -> bytes:
        payload = {
            "model": self.cfg.openai_tts_model,
            "voice": self.cfg.openai_tts_voice,
            "input": text,
            "response_format": self.cfg.openai_tts_response_format,
        }
        data = json.dumps(payload, ensure_ascii=False).encode("utf-8")
        req = request.Request("https://api.openai.com/v1/audio/speech", method="POST", data=data)
        req.add_header("Authorization", f"Bearer {self.cfg.openai_api_key}")
        req.add_header("Content-Type", "application/json")
        try:
            with request.urlopen(req, timeout=self.cfg.openai_tts_timeout_seconds) as resp:
                audio = resp.read()
        except TimeoutError as e:
            raise VoiceReplyError(f"OpenAI не успел сгенерировать речь за {self.cfg.openai_tts_timeout_seconds} секунд.") from e
        except error.HTTPError as e:
            detail = e.read().decode("utf-8", errors="replace")
            if e.code == 401:
                message = "OpenAI отклонил ключ API для озвучивания."
            elif e.code == 429:
                message = "OpenAI временно ограничил озвучивание из-за лимита запросов."
            elif e.code >= 500:
                message = "OpenAI временно не смог сгенерировать речь."
            else:
                message = f"OpenAI вернул ошибку HTTP {e.code} при озвучивании."
            if detail:
                message = f"{message} Детали: {detail[:500]}"
            raise VoiceReplyError(message) from e
        except error.URLError as e:
            raise VoiceReplyError(f"не удалось отправить текст в OpenAI TTS из-за сетевой ошибки: {e.reason}") from e
        if not audio:
            raise VoiceReplyError("OpenAI вернул пустой аудиофайл.")
        return audio

    def _transcribe_voice_job(
        self,
        job: dict[str, Any],
        *,
        status_cb: Callable[[str], Any] | None = None,
    ) -> str:
        if not self.cfg.openai_api_key:
            raise VoiceTranscriptionError(
                "не настроен ключ OpenAI для распознавания.",
                stage="config",
                retryable=False,
            )
        file_id = (job.get("telegram_file_id") or "").strip()
        if not file_id:
            raise VoiceTranscriptionError(
                "Telegram не передал идентификатор файла.",
                stage="telegram_file_id",
                retryable=False,
            )
        job_id = str(job.get("id") or "")[:8]
        job_num = job.get("num", "?")
        media_type = (job.get("telegram_media_type") or "voice").strip()
        duration_seconds = int(job.get("telegram_duration_seconds") or 0)
        telegram_file_size = int(job.get("telegram_file_size") or 0)
        file_looks_big_for_cloud = self._telegram_cloud_download_is_likely_too_big(telegram_file_size)
        if file_looks_big_for_cloud and status_cb is not None:
            status_cb(
                "файл большой, всё равно пробую скачать его из Telegram. "
                f"Предварительный размер около {self._bytes_to_mb(telegram_file_size)} MB."
            )
        started_at = time.time()
        print(f"[py-bot] transcribe start job={job_id} num={job_num} media={media_type}", flush=True)
        file_bytes, filename = self._download_telegram_file(file_id)
        print(
            f"[py-bot] transcribe downloaded job={job_id} filename={filename} size={len(file_bytes)} bytes",
            flush=True,
        )
        if file_looks_big_for_cloud and status_cb is not None:
            status_cb(
                "скачивание из Telegram прошло успешно. "
                f"Фактический размер около {self._bytes_to_mb(len(file_bytes))} MB, дальше готовлю аудио и отправляю в OpenAI."
            )
        prepared_parts = self._prepare_audio_parts_for_transcription(
            file_bytes,
            filename,
            duration_seconds=duration_seconds,
            job_id=job_id,
            job_num=job_num,
        )
        print(
            f"[py-bot] transcribe prepared job={job_id} parts={len(prepared_parts)} duration={duration_seconds}s",
            flush=True,
        )
        parts_text: list[str] = []
        prompt_tail = ""
        for index, (part_bytes, part_name) in enumerate(prepared_parts, start=1):
            print(
                f"[py-bot] transcribe part job={job_id} index={index}/{len(prepared_parts)} filename={part_name} size={len(part_bytes)} bytes",
                flush=True,
            )
            part_text = self._openai_transcribe(part_bytes, part_name, prompt=prompt_tail).strip()
            if part_text:
                parts_text.append(part_text)
                prompt_tail = self._transcription_prompt_tail("\n".join(parts_text))
        text = "\n".join(parts_text).strip()
        if not text:
            raise VoiceTranscriptionError(
                "сервис распознавания вернул пустой текст. Возможно, в записи нет слышимой речи или качество звука слишком низкое.",
                stage="empty_text",
                retryable=False,
            )
        elapsed = self._format_duration(int(time.time() - started_at))
        print(f"[py-bot] transcribe done job={job_id} chars={len(text)} elapsed={elapsed}", flush=True)
        return text

    def _download_telegram_file(self, file_id: str) -> tuple[bytes, str]:
        try:
            result = self.telegram.call("getFile", {"file_id": file_id}, timeout=120)
        except TimeoutError as e:
            raise VoiceTranscriptionError(
                "Telegram долго не отдавал информацию о файле.",
                stage="telegram_get_file_timeout",
                detail=str(e),
            ) from e
        except Exception as e:
            detail = str(e)
            if "file is too big" in detail.lower():
                raise VoiceTranscriptionError(
                    "Файл большой: я попробовал скачать его через текущий Telegram Bot API, "
                    "но Telegram не дал это сделать. Для такого аудио нужен локальный `telegram-bot-api` "
                    "сервер или другой способ передать файл боту.",
                    stage="telegram_get_file_too_big",
                    retryable=False,
                    detail=detail,
                ) from e
            raise VoiceTranscriptionError(
                "не удалось получить информацию о файле из Telegram.",
                stage="telegram_get_file",
                detail=detail,
            ) from e
        info = result.get("result") or {}
        file_path = info.get("file_path")
        if not file_path:
            raise VoiceTranscriptionError(
                "Telegram не вернул путь к файлу.",
                stage="telegram_file_path",
                retryable=True,
                detail=json.dumps(info, ensure_ascii=False)[:1000],
            )
        file_url = self.telegram.file_base + file_path.lstrip("/")
        req = request.Request(file_url, method="GET")
        try:
            with request.urlopen(req, timeout=self.cfg.telegram_file_download_timeout_seconds) as resp:
                data = resp.read()
        except TimeoutError as e:
            raise VoiceTranscriptionError(
                f"Telegram не успел отдать аудиофайл за {self.cfg.telegram_file_download_timeout_seconds} секунд.",
                stage="telegram_download_timeout",
                detail=str(e),
            ) from e
        except error.HTTPError as e:
            detail = e.read().decode("utf-8", errors="replace")
            raise VoiceTranscriptionError(
                f"Telegram вернул ошибку HTTP {e.code} при скачивании аудио.",
                stage="telegram_download_http",
                retryable=e.code >= 500 or e.code == 429,
                detail=detail[:1000],
            ) from e
        except error.URLError as e:
            raise VoiceTranscriptionError(
                "не удалось скачать аудиофайл из Telegram из-за сетевой ошибки.",
                stage="telegram_download_network",
                detail=str(e.reason),
            ) from e
        if not data:
            raise VoiceTranscriptionError(
                "Telegram отдал пустой аудиофайл.",
                stage="telegram_download_empty",
                retryable=True,
            )
        original_name = Path(file_path).name or "audio.ogg"
        lower = original_name.lower()
        # OpenAI transcription может не принимать расширение .oga, нормализуем в .ogg.
        if lower.endswith(".oga"):
            base = original_name[:-4] if len(original_name) > 4 else "audio"
            normalized = f"{base}.ogg"
        else:
            normalized = original_name
        return data, normalized

    def _prepare_audio_parts_for_transcription(
        self,
        file_bytes: bytes,
        filename: str,
        *,
        duration_seconds: int,
        job_id: str,
        job_num: Any,
    ) -> list[tuple[bytes, str]]:
        needs_duration_chunking = duration_seconds > self.cfg.openai_transcribe_max_chunk_seconds
        if len(file_bytes) <= self.cfg.openai_transcribe_max_upload_bytes and not needs_duration_chunking:
            return [(file_bytes, filename)]
        ffmpeg_path = shutil.which(self.cfg.ffmpeg_bin)
        ffprobe_path = shutil.which(self.cfg.ffprobe_bin)
        if not ffmpeg_path or not ffprobe_path:
            raise VoiceTranscriptionError(
                "для длинного аудио нужен локальный `ffmpeg`/`ffprobe`, но они не найдены в системе.",
                stage="audio_prepare_tools_missing",
                retryable=False,
            )
        with tempfile.TemporaryDirectory(prefix="shine-audio-") as tmpdir:
            tmp = Path(tmpdir)
            input_suffix = Path(filename).suffix or ".ogg"
            input_path = tmp / f"source{input_suffix}"
            input_path.write_bytes(file_bytes)
            prepared_path = tmp / "prepared.ogg"
            self._ffmpeg_reencode_audio(input_path, prepared_path)
            prepared_bytes = prepared_path.read_bytes()
            prepared_duration = self._ffprobe_duration_seconds(prepared_path)
            if (
                len(prepared_bytes) <= self.cfg.openai_transcribe_max_upload_bytes
                and prepared_duration <= self.cfg.openai_transcribe_max_chunk_seconds
            ):
                return [(prepared_bytes, prepared_path.name)]
            chunk_length = self._choose_transcription_chunk_seconds(prepared_duration, len(prepared_bytes))
            print(
                f"[py-bot] audio chunking job={job_id} num={job_num} duration={prepared_duration:.1f}s total_bytes={len(prepared_bytes)} chunk_seconds={chunk_length}",
                flush=True,
            )
            chunks: list[tuple[bytes, str]] = []
            offset = 0
            index = 1
            total_duration = max(1, int(prepared_duration + 0.999))
            while offset < total_duration:
                chunk_path = tmp / f"chunk_{index:03d}.ogg"
                self._ffmpeg_extract_audio_chunk(prepared_path, chunk_path, offset, chunk_length)
                chunk_bytes = chunk_path.read_bytes()
                if not chunk_bytes:
                    break
                if len(chunk_bytes) > self.cfg.openai_transcribe_max_upload_bytes:
                    raise VoiceTranscriptionError(
                        "локальная нарезка аудио дала слишком большой кусок для OpenAI; нужно уменьшить размер чанка.",
                        stage="audio_chunk_too_large",
                        retryable=False,
                    )
                chunks.append((chunk_bytes, chunk_path.name))
                step = max(1, chunk_length - self.cfg.openai_transcribe_overlap_seconds)
                offset += step
                index += 1
            if not chunks:
                raise VoiceTranscriptionError(
                    "не удалось подготовить куски аудио для распознавания.",
                    stage="audio_chunk_empty",
                    retryable=False,
                )
            return chunks

    def _ffmpeg_reencode_audio(self, input_path: Path, output_path: Path) -> None:
        cmd = [
            self.cfg.ffmpeg_bin,
            "-y",
            "-i",
            str(input_path),
            "-vn",
            "-ac",
            "1",
            "-ar",
            "16000",
            "-c:a",
            "libopus",
            "-b:a",
            f"{self.cfg.openai_transcribe_reencode_bitrate_kbps}k",
            str(output_path),
        ]
        self._run_subprocess_checked(cmd, "audio_reencode_ffmpeg")

    def _ffmpeg_extract_audio_chunk(self, input_path: Path, output_path: Path, offset_seconds: int, chunk_seconds: int) -> None:
        cmd = [
            self.cfg.ffmpeg_bin,
            "-y",
            "-ss",
            str(offset_seconds),
            "-t",
            str(chunk_seconds),
            "-i",
            str(input_path),
            "-vn",
            "-acodec",
            "copy",
            str(output_path),
        ]
        self._run_subprocess_checked(cmd, "audio_chunk_ffmpeg")

    def _ffprobe_duration_seconds(self, audio_path: Path) -> float:
        cmd = [
            self.cfg.ffprobe_bin,
            "-v",
            "error",
            "-show_entries",
            "format=duration",
            "-of",
            "default=noprint_wrappers=1:nokey=1",
            str(audio_path),
        ]
        try:
            result = subprocess.run(
                cmd,
                check=True,
                capture_output=True,
                text=True,
                timeout=self.cfg.openai_transcribe_ffmpeg_timeout_seconds,
            )
        except subprocess.TimeoutExpired as e:
            raise VoiceTranscriptionError(
                f"`ffprobe` не успел определить длительность аудио за {self.cfg.openai_transcribe_ffmpeg_timeout_seconds} секунд.",
                stage="audio_probe_timeout",
                retryable=False,
            ) from e
        except subprocess.CalledProcessError as e:
            detail = (e.stderr or e.stdout or "").strip()
            raise VoiceTranscriptionError(
                "не удалось определить длительность аудио через `ffprobe`.",
                stage="audio_probe_failed",
                retryable=False,
                detail=detail[:1500],
            ) from e
        raw = (result.stdout or "").strip()
        try:
            return max(0.0, float(raw))
        except ValueError as e:
            raise VoiceTranscriptionError(
                "`ffprobe` вернул некорректную длительность аудио.",
                stage="audio_probe_invalid",
                retryable=False,
                detail=raw[:300],
            ) from e

    def _run_subprocess_checked(self, cmd: list[str], stage: str) -> None:
        try:
            subprocess.run(
                cmd,
                check=True,
                capture_output=True,
                text=True,
                timeout=self.cfg.openai_transcribe_ffmpeg_timeout_seconds,
            )
        except subprocess.TimeoutExpired as e:
            raise VoiceTranscriptionError(
                f"локальная обработка аудио не успела завершиться за {self.cfg.openai_transcribe_ffmpeg_timeout_seconds} секунд.",
                stage=f"{stage}_timeout",
                retryable=False,
            ) from e
        except subprocess.CalledProcessError as e:
            detail = (e.stderr or e.stdout or "").strip()
            raise VoiceTranscriptionError(
                "локальная обработка аудио через `ffmpeg` завершилась с ошибкой.",
                stage=f"{stage}_failed",
                retryable=False,
                detail=detail[:1500],
            ) from e

    def _choose_transcription_chunk_seconds(self, duration_seconds: float, total_bytes: int) -> int:
        max_chunk = self.cfg.openai_transcribe_max_chunk_seconds
        safe_seconds = max(60, max_chunk - self.cfg.openai_transcribe_overlap_seconds)
        if duration_seconds <= 0 or total_bytes <= 0:
            return safe_seconds
        bytes_per_second = total_bytes / max(duration_seconds, 1.0)
        if bytes_per_second <= 0:
            return safe_seconds
        size_limited = int((self.cfg.openai_transcribe_max_upload_bytes * 0.9) / bytes_per_second)
        return max(60, min(safe_seconds, size_limited if size_limited > 0 else safe_seconds))

    @staticmethod
    def _transcription_prompt_tail(text: str, limit: int = 1000) -> str:
        source = compact_spaces(text)
        if len(source) <= limit:
            return source
        return source[-limit:]

    def _telegram_cloud_download_is_likely_too_big(self, file_size: int) -> bool:
        if file_size <= 0:
            return False
        using_cloud_api = self.cfg.telegram_api_base_url.rstrip("/") == "https://api.telegram.org"
        return using_cloud_api and file_size > 20 * 1024 * 1024

    @staticmethod
    def _bytes_to_mb(value: int) -> str:
        return f"{value / (1024 * 1024):.1f}"

    def _openai_transcribe(self, file_bytes: bytes, filename: str, prompt: str = "") -> str:
        boundary = "----shine-boundary-" + "".join(random.choices("abcdef0123456789", k=16))
        mime = mimetypes.guess_type(filename)[0] or "application/octet-stream"

        def text_part(name: str, value: str) -> bytes:
            return (
                f"--{boundary}\r\n"
                f'Content-Disposition: form-data; name="{name}"\r\n\r\n'
                f"{value}\r\n"
            ).encode("utf-8")

        body = bytearray()
        body.extend(text_part("model", self.cfg.openai_transcribe_model))
        body.extend(text_part("response_format", "text"))
        prompt = compact_spaces(prompt)
        if prompt:
            body.extend(text_part("prompt", prompt[:1000]))
        body.extend(
            (
                f"--{boundary}\r\n"
                f'Content-Disposition: form-data; name="file"; filename="{filename}"\r\n'
                f"Content-Type: {mime}\r\n\r\n"
            ).encode("utf-8")
        )
        body.extend(file_bytes)
        body.extend(b"\r\n")
        body.extend(f"--{boundary}--\r\n".encode("utf-8"))

        req = request.Request("https://api.openai.com/v1/audio/transcriptions", method="POST", data=bytes(body))
        req.add_header("Authorization", f"Bearer {self.cfg.openai_api_key}")
        req.add_header("Content-Type", f"multipart/form-data; boundary={boundary}")
        try:
            with request.urlopen(req, timeout=self.cfg.openai_transcribe_timeout_seconds) as resp:
                return resp.read().decode("utf-8", errors="replace")
        except TimeoutError as e:
            raise VoiceTranscriptionError(
                f"OpenAI не успел распознать аудио за {self.cfg.openai_transcribe_timeout_seconds} секунд.",
                stage="openai_transcribe_timeout",
                detail=str(e),
            ) from e
        except error.HTTPError as e:
            detail = e.read().decode("utf-8", errors="replace")
            if e.code == 400:
                user_message = "OpenAI не принял аудиофайл для распознавания."
            elif e.code == 401:
                user_message = "OpenAI отклонил ключ API для распознавания."
            elif e.code == 413:
                user_message = "аудиофайл слишком большой для распознавания OpenAI."
            elif e.code == 429:
                user_message = "OpenAI временно ограничил распознавание из-за лимита запросов."
            elif e.code >= 500:
                user_message = "OpenAI временно не смог обработать распознавание."
            else:
                user_message = f"OpenAI вернул ошибку HTTP {e.code} при распознавании."
            raise VoiceTranscriptionError(
                user_message,
                stage="openai_transcribe_http",
                retryable=e.code == 429 or e.code >= 500,
                detail=detail[:1500],
            ) from e
        except error.URLError as e:
            raise VoiceTranscriptionError(
                "не удалось отправить аудио в OpenAI из-за сетевой ошибки.",
                stage="openai_transcribe_network",
                detail=str(e.reason),
            ) from e

    @staticmethod
    def _extract_codex_user_note(line: str) -> str | None:
        s = (line or "").strip()
        if not s.startswith("{"):
            return None
        try:
            obj = json.loads(s)
        except Exception:
            return None
        if obj.get("type") != "item.completed":
            return None
        item = obj.get("item") or {}
        if item.get("type") != "agent_message":
            return None
        text = (item.get("text") or "").strip()
        if not text:
            return None
        if len(text) > 220:
            return text[:220] + "..."
        return text

    @staticmethod
    def _extract_fallback_message(lines: list[str]) -> str:
        for line in reversed(lines):
            line = line.strip()
            if not line:
                continue
            if line.startswith("{") and '"type":' in line:
                continue
            if line.startswith("mcp:") or line.startswith("OpenAI Codex"):
                continue
            return line
        return ""

    @staticmethod
    def _extract_codex_thread_id(line: str) -> str:
        s = (line or "").strip()
        if not s.startswith("{"):
            return ""
        try:
            obj = json.loads(s)
        except Exception:
            return ""
        if obj.get("type") != "thread.started":
            return ""
        thread_id = (obj.get("thread_id") or "").strip()
        return thread_id

    @staticmethod
    def _is_missing_codex_session_error(text: str) -> bool:
        lowered = (text or "").lower()
        markers = [
            "session not found",
            "conversation not found",
            "thread not found",
            "no session found",
            "invalid session",
            "unknown session",
            "no conversation found",
            "unknown thread",
        ]
        return any(marker in lowered for marker in markers)

    @staticmethod
    def _format_duration(seconds: int) -> str:
        seconds = max(0, seconds)
        minutes, sec = divmod(seconds, 60)
        hours, minutes = divmod(minutes, 60)
        if hours:
            return f"{hours}ч {minutes}м {sec}с"
        if minutes:
            return f"{minutes}м {sec}с"
        return f"{sec}с"


def run_selftest(config: BotConfig, prompt: str) -> int:
    cmd = [
        str(config.codex_bin),
        "exec",
        "--dangerously-bypass-approvals-and-sandbox",
        "--json",
        "-C", str(config.codex_workdir),
        prompt,
    ]
    proc = subprocess.run(
        cmd,
        stdin=subprocess.DEVNULL,
        capture_output=True,
        text=True,
        encoding="utf-8",
        errors="replace",
    )
    print(proc.stdout)
    if proc.stderr:
        print(proc.stderr)
    return proc.returncode


def main() -> int:
    parser = argparse.ArgumentParser(description="SHiNE Python Telegram bot wrapper for Codex CLI")
    parser.add_argument("--selftest-codex", default="", help="Выполнить только codex exec с этим prompt и выйти")
    args = parser.parse_args()

    root = Path(__file__).resolve().parent
    cfg = BotConfig(root)
    if args.selftest_codex:
        return run_selftest(cfg, args.selftest_codex)

    service = ShinePyBotService(cfg)
    try:
        service.run()
    except KeyboardInterrupt:
        service.shutdown()
        return 0
    except Exception as e:
        print(f"[py-bot] FATAL: {e}", flush=True)
        return 1
    return 0


if __name__ == "__main__":
    raise SystemExit(main())