from __future__ import annotations

from typing import Any


def parse_cite(reference: dict[str, Any]) -> dict[str, str] | None:
    cite_type = reference.get("cite")
    if not cite_type:
        return None

    match cite_type:
        case "chan":
            return {
                "type": "chan",
                "group": reference.get("group", ""),
                "chan": reference.get("chan", ""),
            }
        case "group":
            return {
                "type": "group",
                "group": reference.get("group", ""),
            }
        case "desk":
            return {
                "type": "desk",
                "desk": reference.get("desk", ""),
            }
        case "bait":
            return {
                "type": "bait",
                "bait": reference.get("bait", ""),
            }
        case _:
            return None


def cite_to_text(cite: dict[str, str]) -> str:
    match cite.get("type"):
        case "chan":
            return f"[channel: {cite.get('group')}/{cite.get('chan')}]"
        case "group":
            return f"[group: {cite.get('group')}]"
        case "desk":
            return f"[desk: {cite.get('desk')}]"
        case "bait":
            return f"[bait: {cite.get('bait')}]"
        case _:
            return "[unknown reference]"