"""Expected values from the real APEX Ship Flight Control DOM reads, 2026-10-09 calibration
sweep (AVI-07JFB). Raw data in empire/data/shipping_calibration/."""
import pytest
from puga import shipping


@pytest.mark.parametrize("v0,actual", [(0.01, 3), (0.34, 83), (0.67, 162), (1.0, 242)])
def test_cruise_leg_fuel_matches_dep(v0, actual):
    assert shipping.cruise_leg_fuel(v0) == pytest.approx(actual, abs=5)


@pytest.mark.parametrize("v1,actual", [(0.303, 8), (0.535, 15), (0.768, 21), (1.0, 28)])
def test_jump_fuel(v1, actual):
    assert shipping.jump_fuel(v1) == pytest.approx(actual, abs=1)


@pytest.mark.parametrize("v1,actual", [(0.303, 6), (0.535, 12), (0.768, 17), (1.0, 22)])
def test_charge_fuel(v1, actual):
    assert shipping.charge_fuel(v1) == pytest.approx(actual, abs=1)


def test_charge_cheaper_than_jump():
    for v1 in (0.3, 0.5, 0.7, 1.0):
        assert shipping.charge_fuel(v1) < shipping.jump_fuel(v1)


def test_landing_fuel_lookup():
    assert shipping.landing_fuel("ZV-759c") == 38   # Deimos
    assert shipping.landing_fuel("ZV-759b") == 38   # Vulcan
    assert shipping.landing_fuel("ZV-194a") == 48   # Nike


def test_landing_fuel_unmeasured_returns_none():
    assert shipping.landing_fuel("ZV-307") is None


def test_gateway_hop_is_fuel_free_plus_fixed_fee():
    g = shipping.gateway_hop_cost(6000, "AIC")
    assert g["fee_amount"] == 6000
    assert g["fee_currency"] == "AIC"
    assert g["stl_fuel"] == shipping.GATEWAY_HOP_FIXED_STL + shipping.SHORT_TRA_FIXED_STL + shipping.DCAY_FIXED_STL


def test_sliders_additive_no_cross_term():
    # cruise fuel must not depend on v1, jump fuel must not depend on v0 - the whole point
    # of the independence finding this model is built on.
    base = shipping.cruise_leg_fuel(0.5)
    assert shipping.cruise_leg_fuel(0.5) == base