"""Pure-python TEI financial math."""

from core.calculations.npv import (
    discount_factor,
    npv,
    present_value,
    present_value_series,
)
from core.calculations.payback import payback_months, payback_years
from core.calculations.roi import roi, roi_percentage
from core.calculations.scenarios import (
    SCENARIOS,
    apply_scenario,
    risk_adjust_benefit,
    risk_adjust_cost,
)

__all__ = [
    "SCENARIOS",
    "apply_scenario",
    "discount_factor",
    "npv",
    "payback_months",
    "payback_years",
    "present_value",
    "present_value_series",
    "risk_adjust_benefit",
    "risk_adjust_cost",
    "roi",
    "roi_percentage",
]