"""Человекочитаемые подписи к операциям баланса."""

from __future__ import annotations

_KIND_LABELS: dict[str, str] = {
    "topup": "Пополнение",
    "admin_credit": "Зачисление администратором",
    "topup_code": "Код пополнения",
    "stars_topup": "Telegram Stars",
    "crypto_topup": "Крипто-пополнение",
    "lava_topup": "Lava",
    "anypay_topup": "AnyPay",
    "purchase": "Покупка тарифа",
    "renewal": "Продление подписки",
    "traffic": "Докупка трафика",
    "devices": "Доп. устройства",
    "extras_renewal": "Продление доп. опций",
    "wg_config": "WireGuard конфиг",
    "awg_config": "AmneziaWG конфиг",
    "refund": "Возврат",
}


def transaction_label(kind: str, meta: str | None = None) -> str:
    k = (kind or "").strip()
    m = (meta or "").strip()
    if k == "admin_credit":
        if " | admin:" in m:
            m = m.split(" | admin:", 1)[0].strip()
        return m or _KIND_LABELS["admin_credit"]
    if k == "topup_code" and m:
        return f"Код пополнения · {m}"
    if m and k in ("purchase", "renewal", "traffic", "devices", "wg_config", "awg_config", "refund"):
        return f"{_KIND_LABELS.get(k, k)} · {m}"
    return _KIND_LABELS.get(k, k or "Операция")


def transaction_row_dict(amount: float, kind: str, meta: str | None, created_at) -> dict:
    sign = "+" if amount > 0 else ""
    amt = float(amount)
    label = transaction_label(kind, meta)
    return {
        "amount": amt,
        "kind": kind,
        "meta": meta,
        "label": label,
        "amount_label": f"{sign}{amt:.0f} ₽",
        "created_at": created_at.isoformat() if hasattr(created_at, "isoformat") else str(created_at),
    }