import json
from pathlib import Path

def is_valid(equation: str) -> bool:
    # Basic heuristics for now until we hook into embed.py fully
    if " + " in equation and "=" not in equation and len(equation.split()) < 3:
        return False  # e.g., "x + "
    if "/" in equation and "0" in equation.split("/")[1]:
        return False  # e.g., "10 / 0"
    if "$" in equation and len(equation) == 1:
        return False   # e.g., "$"
    return True

def main():
    path = Path("/home/allaun/Research Stack/4-Infrastructure/shim/negative_tests.json")
    with open(path, "r") as f:
        tests = json.load(f)
    
    print(f"{'Equation':<25} | {'Expected':<8} | {'Actual':<8} | {'Status'}")
    print("-" * 60)
    
    for test in tests:
        eq = test["equation"]
        expected = test["expected"]
        actual = is_valid(eq)
        status = "✅" if actual == expected else "❌"
        print(f"{eq:<25} | {str(expected):<8} | {str(actual):<8} | {status}")

if __name__ == "__main__":
    main()