"""OA 公式与联动单元测试"""
import unittest

from app.services.oa_formula import (
    FormulaError,
    apply_formulas_and_linkages,
    eval_formula,
)


class TestOaFormula(unittest.TestCase):
    def test_arith_and_field_brace(self):
        self.assertEqual(eval_formula("{a} + {b}", {"a": 2, "b": 3}), 5)
        self.assertEqual(eval_formula("a * 2", {"a": 4}), 8)

    def test_if_and_sum(self):
        self.assertEqual(eval_formula("IF({days} > 3, 1, 0)", {"days": 5}), 1)
        self.assertEqual(eval_formula("IF(days > 3, 1, 0)", {"days": 2}), 0)
        self.assertEqual(eval_formula("SUM(1, 2, {x})", {"x": 3}), 6)

    def test_illegal_eval_rejected(self):
        with self.assertRaises(FormulaError):
            eval_formula("__import__('os').system('ls')", {})
        with self.assertRaises(FormulaError):
            eval_formula("eval('1+1')", {})

    def test_div_zero(self):
        with self.assertRaises(FormulaError):
            eval_formula("1/0", {})

    def test_apply_formula_and_linkage(self):
        schema = {
            "rule": [
                {"type": "inputNumber", "field": "days"},
                {
                    "type": "inputNumber",
                    "field": "total",
                    "props": {"formula": "{days} * 100"},
                },
                {
                    "type": "radio",
                    "field": "needGm",
                    "props": {
                        "linkage": {
                            "when": "{days} > 3",
                            "set": {"needGm": "1"},
                        }
                    },
                },
            ]
        }
        out = apply_formulas_and_linkages(schema, {"days": 5})
        self.assertEqual(out["total"], 500)
        self.assertEqual(out["needGm"], "1")

        out2 = apply_formulas_and_linkages(schema, {"days": 2})
        self.assertEqual(out2["total"], 200)
        self.assertNotEqual(out2.get("needGm"), "1")


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