"""Tests for features/pricing.py."""
from __future__ import annotations

from werewolftown.features.pricing import (
    buy_discount,
    buyer_penalty_ratio,
    cap_card_price,
    dead_zone_adjust,
    max_buy,
    min_card_price,
    snap_price,
)


class TestSnapPrice:
    def test_round_to_500(self, cfg):
        assert snap_price(12345, cfg) == 12500

    def test_exact_multiple(self, cfg):
        assert snap_price(10000, cfg) == 10000

    def test_zero(self, cfg):
        assert snap_price(0, cfg) == 0

    def test_round_down(self, cfg):
        assert snap_price(12499, cfg) == 12500


class TestDeadZoneAdjust:
    def test_below_midpoint_snaps_down(self, cfg):
        assert dead_zone_adjust(11000, cfg) == 9000

    def test_above_midpoint_snaps_up(self, cfg):
        assert dead_zone_adjust(14000, cfg) == 15000

    def test_outside_dead_zone(self, cfg):
        assert dead_zone_adjust(5000, cfg) == 5000
        assert dead_zone_adjust(20000, cfg) == 20000


class TestBuyDiscount:
    def test_r1(self, cfg):
        assert buy_discount(1, cfg) == 0.50

    def test_r4(self, cfg):
        assert buy_discount(4, cfg) == 0.35

    def test_r3(self, cfg):
        assert buy_discount(3, cfg) == 0.35


class TestMaxBuy:
    def test_r1_25000(self, cfg):
        assert max_buy(1, cfg) == 25000

    def test_r4_10000(self, cfg):
        assert max_buy(4, cfg) == 10000


class TestBuyerPenaltyRatio:
    def test_r1_04(self, cfg):
        assert buyer_penalty_ratio(1, cfg) == 0.40

    def test_r4_06(self, cfg):
        assert buyer_penalty_ratio(4, cfg) == 0.60

    def test_r3_05(self, cfg):
        assert buyer_penalty_ratio(3, cfg) == 0.50


class TestMinCardPrice:
    def test_r4_1000(self, cfg):
        assert min_card_price(4, cfg) == 1000

    def test_r1_5000(self, cfg):
        assert min_card_price(1, cfg) == 5000


class TestCapCardPrice:
    def test_capped_by_max(self, cfg):
        assert cap_card_price(50000, 100000, cfg) == 40000

    def test_capped_by_cash(self, cfg):
        assert cap_card_price(50000, 40000, cfg) == 32000  # 40000 * 0.8

    def test_no_cap_needed(self, cfg):
        assert cap_card_price(10000, 100000, cfg) == 10000