# adapter/telegram/converter.py
from __future__ import annotations

from aiogram.types import Message

from core.protocol import Attachment, IncomingMessage, OutgoingEvent, OutgoingMessage, OutgoingUI


def from_message(message: Message, chat_id: str) -> IncomingMessage:
    return IncomingMessage(
        user_id=str(message.from_user.id),
        chat_id=chat_id,
        text=message.text or message.caption or "",
        attachments=_extract_attachments(message),
        platform="telegram",
    )


def _extract_attachments(message: Message) -> list[Attachment]:
    attachments: list[Attachment] = []
    if message.photo:
        file = message.photo[-1]
        attachments.append(Attachment(
            type="image",
            url=f"tg://file/{file.file_id}",
            mime_type="image/jpeg",
        ))
    if message.document:
        attachments.append(Attachment(
            type="document",
            url=f"tg://file/{message.document.file_id}",
            mime_type=message.document.mime_type or "application/octet-stream",
            filename=message.document.file_name,
        ))
    if message.voice:
        attachments.append(Attachment(
            type="audio",
            url=f"tg://file/{message.voice.file_id}",
            mime_type="audio/ogg",
        ))
    return attachments


def format_outgoing(chat_name: str, event: OutgoingEvent) -> str:
    prefix = f"[{chat_name}] "
    if isinstance(event, OutgoingMessage):
        return prefix + event.text
    if isinstance(event, OutgoingUI):
        return prefix + event.text
    return prefix + str(event)