import re

from yuxi.channel.message.models import UnifiedMessage, PeerInfo, GroupContext
from yuxi.channel.routing.models import PeerKind
from yuxi.channel.extensions.webex.types import WebexMessage


def payload_to_unified_message(
    webex_msg: WebexMessage,
    bot_person_id: str,
    account_id: str,
) -> UnifiedMessage | None:
    if webex_msg.person_id == bot_person_id:
        return None

    content = webex_msg.text or _extract_text_from_markdown(webex_msg.markdown)
    if not content and not webex_msg.files:
        return None

    was_mentioned = any(m.get("personId") == bot_person_id for m in webex_msg.mentions)

    msg_id = f"webex:{webex_msg.id}"
    sender = PeerInfo(
        kind=PeerKind.DIRECT if webex_msg.room_type == "direct" else PeerKind.GROUP,
        id=webex_msg.person_id,
        display_name=webex_msg.person_email,
    )

    group = None
    if webex_msg.room_type == "group":
        group = GroupContext(id=webex_msg.room_id, kind="group")

    media_urls = webex_msg.files if webex_msg.files else []

    return UnifiedMessage(
        msg_id=msg_id,
        channel_type="webex",
        account_id=account_id,
        content=content,
        sender=sender,
        group=group,
        was_mentioned=was_mentioned,
        reply_to_id=webex_msg.parent_id,
        media_urls=media_urls,
        raw_payload=webex_msg.raw,
        metadata={
            "room_id": webex_msg.room_id,
            "room_type": webex_msg.room_type,
            "person_email": webex_msg.person_email,
            "debounce_key": f"webex:{webex_msg.person_id}:{webex_msg.room_id}",
        },
        conversation_label=f"webex:{webex_msg.room_id}",
        native_direct_user_id=webex_msg.person_id,
    )


def _extract_text_from_markdown(md: str) -> str:
    if not md:
        return ""
    txt = md
    txt = re.sub(r"\*\*(.+?)\*\*", r"\1", txt)
    txt = re.sub(r"\*(.+?)\*", r"\1", txt)
    txt = re.sub(r"#{1,6}\s+", "", txt)
    return txt.strip()