from __future__ import annotations

from decimal import Decimal

import pytest

from app.models.portfolio import PortfolioConfig
from app.services.settings_status import _normalize_save_status_snapshot, save_status_text


class CallableMarginCallPriceConfig:
    def __init__(self, config: PortfolioConfig) -> None:
        self.entry_basis_mode = config.entry_basis_mode
        self.gold_value = config.gold_value
        self.entry_price = config.entry_price
        self.gold_ounces = config.gold_ounces
        self.current_ltv = config.current_ltv
        self._margin_call_price = config.margin_call_price

    def margin_call_price(self) -> float:
        return self._margin_call_price


class StringBoundaryConfig:
    entry_basis_mode = "weight"
    gold_value = "215000"
    entry_price = "215.0"
    gold_ounces = "1000"
    current_ltv = "0.6744186046511628"
    margin_call_price = "193.33333333333334"


def test_normalize_save_status_snapshot_coerces_numeric_boundary_values() -> None:
    snapshot = _normalize_save_status_snapshot(StringBoundaryConfig())

    assert snapshot.entry_basis_mode == "weight"
    assert snapshot.gold_value == Decimal("215000")
    assert snapshot.entry_price == Decimal("215.0")
    assert snapshot.gold_ounces == Decimal("1000")
    assert snapshot.current_ltv == Decimal("0.6744186046511628")
    assert snapshot.margin_call_price == Decimal("193.33333333333334")


def test_normalize_save_status_snapshot_rejects_bool_values() -> None:
    class InvalidBoundaryConfig(StringBoundaryConfig):
        current_ltv = True

    with pytest.raises(TypeError, match="config.current_ltv must be numeric, got bool"):
        _normalize_save_status_snapshot(InvalidBoundaryConfig())


def test_save_status_text_uses_margin_call_price_api() -> None:
    config = PortfolioConfig(gold_value=215_000.0, entry_price=215.0, loan_amount=145_000.0)

    status = save_status_text(CallableMarginCallPriceConfig(config))

    assert "Saved: basis=value_price" in status
    assert "start=$215,000" in status
    assert "entry=$215.00/oz" in status
    assert "weight=1,000.00 oz" in status
    assert "LTV=67.4%" in status
    assert "trigger=$193.33/oz" in status