import sys
from pathlib import Path
import pytest

# Ensure project root is on sys.path for direct module imports
sys.path.append(str(Path(__file__).resolve().parents[1]))

from storage import Storage, OrderbookLevel


def test_parse_orderbook_side_happy_path():
    storage = Storage("BTC-USDT")
    text = str([
        (100.0, 1.5, 0, 2),
        (101.0, 2.25, 1, 3),
    ])

    side = {}
    storage._parse_orderbook_side(text, side)

    assert 100.0 in side and 101.0 in side
    level_100 = side[100.0]
    level_101 = side[101.0]

    assert isinstance(level_100, OrderbookLevel)
    assert level_100.price == 100.0
    assert level_100.size == 1.5
    assert level_100.liquidation_count == 0
    assert level_100.order_count == 2

    assert level_101.size == 2.25
    assert level_101.liquidation_count == 1
    assert level_101.order_count == 3


def test_parse_orderbook_side_ignores_zero_size():
    storage = Storage("BTC-USDT")
    text = str([
        (100.0, 0.0, 0, 0),
        (101.0, 1.0, 0, 1),
    ])

    side = {}
    storage._parse_orderbook_side(text, side)

    assert 100.0 not in side
    assert 101.0 in side