"""库存数据看板月份与统计口径回归测试。"""
import unittest
from pathlib import Path


ROOT = Path(__file__).resolve().parents[1]


class InventoryBoardLogicTest(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        cls.frontend = ROOT.joinpath('static', 'js', 'app.js').read_text(encoding='utf-8')
        cls.backend = ROOT.joinpath('routes', 'dashboard.py').read_text(encoding='utf-8')

    def test_month_is_dynamic_and_uses_shanghai_timezone(self):
        self.assertIn("timeZone: 'Asia/Shanghai'", self.frontend)
        self.assertIn('inventoryBoardCurrentMonth()', self.frontend)
        self.assertNotIn("monthInput.value = '2026-08'", self.frontend)

    def test_snapshot_is_limited_to_selected_month(self):
        self.assertIn(
            'WHERE data_date >= %s AND data_date < %s',
            self.backend,
        )

    def test_disabled_warehouses_and_all_warehouse_stockout_are_enforced(self):
        self.assertIn("active_warehouse_condition('id')", self.backend)
        self.assertIn('HAVING SUM(id.available_qty) <= 0', self.backend)
        self.assertIn('_stockout_codes.intersection_update(_sales_30.keys())', self.backend)
        self.assertNotIn('AND id.available_qty = 0', self.backend)

    def test_external_value_is_optional_override(self):
        self.assertIn('if key not in external_map', self.backend)
        self.assertNotIn("if value in ('', None):\n            result[key] = 0", self.backend)

    def test_sku_thresholds_follow_visible_labels(self):
        self.assertIn("float(row['qty'] or 0) >= 30", self.backend)
        self.assertIn("float(row['qty'] or 0) >= 100", self.backend)
        self.assertIn("float(row['qty'] or 0) >= 200", self.backend)


if __name__ == '__main__':
    unittest.main()