import urllib.request
import re
import json
import time

# Batch 2 Registry Mapping for Verification
batch_2_registry = [
    {"url": "https://howdoyouconvert.com/calculator/attograms-to-femtograms/?ao_noptimize=1", "fwd": 0.001, "v1": 1000, "expected_v2": 1},
    {"url": "https://howdoyouconvert.com/calculator/bar-to-pascal/?ao_noptimize=1", "fwd": 100000, "v1": 1, "expected_v2": 100000},
    {"url": "https://howdoyouconvert.com/calculator/bar-to-psi/?ao_noptimize=1", "fwd": 14.5037738, "v1": 1, "expected_v2": 14.5037738},
    {"url": "https://howdoyouconvert.com/calculator/becquerel-to-curie/?ao_noptimize=1", "fwd": 2.7027027e-11, "v1": 37000000000, "expected_v2": 1},
    {"url": "https://howdoyouconvert.com/calculator/becquerel-to-rutherford/?ao_noptimize=1", "fwd": 0.000001, "v1": 1000000, "expected_v2": 1},
    {"url": "https://howdoyouconvert.com/calculator/bits-to-bytes/?ao_noptimize=1", "fwd": 0.125, "v1": 8, "expected_v2": 1},
    {"url": "https://howdoyouconvert.com/calculator/btu-to-kilojoules/?ao_noptimize=1", "fwd": 1.05505585, "v1": 1, "expected_v2": 1.05505585},
    {"url": "https://howdoyouconvert.com/calculator/btuhour-to-watts/?ao_noptimize=1", "fwd": 0.293071, "v1": 100, "expected_v2": 29.3071},
    {"url": "https://howdoyouconvert.com/calculator/calories-to-joules/?ao_noptimize=1", "fwd": 4.184, "v1": 1, "expected_v2": 4.184},
    {"url": "https://howdoyouconvert.com/calculator/calories-to-kilojoules/?ao_noptimize=1", "fwd": 4.184, "v1": 1, "expected_v2": 4.184},
]

def verify_math(calc):
    print(f"\n--- Verifying {calc['url']} ---")
    headers = {"User-Agent": "Mozilla/5.0"}
    
    # Test Forward
    try:
        url_v1 = f"{calc['url']}&v1={calc['v1']}"
        req_f = urllib.request.Request(url_v1, headers=headers)
        resp_f = urllib.request.urlopen(req_f).read().decode('utf-8')
        
        # We need to check if the JS logic is actually executing.
        # Since we use URL params and DOMContentLoaded, we can't 'see' the changed input value in raw HTML.
        # Instead, we will extract the JS from the page body and evaluate it locally to verify the logic we injected is correct.
        
        scripts = re.findall(r'<script.*?>\s*(.*?)\s*</script>', resp_f, re.DOTALL)
        logic_script = ""
        for s in scripts:
            if "calculate1" in s and "document.getElementById" in s:
                logic_script = s
                break
        
        if not logic_script:
            print("FAILED: Logic script not found in page source.")
            return False
            
        print("Found JS logic. Verifying formula constants...")
        
        # Extract the logic lines
        fwd_logic = re.search(r'function calculate1.*?let val2 = (.*?);', logic_script, re.DOTALL)
        rev_logic = re.search(r'function calculate2.*?let val1 = (.*?);', logic_script, re.DOTALL)
        
        if not fwd_logic or not rev_logic:
            print("FAILED: Could not parse math logic lines from JS.")
            return False
            
        f_expr = fwd_logic.group(1).replace("val1", str(calc['v1']))
        r_expr = rev_logic.group(1).replace("val2", str(calc['expected_v2']))
        
        # Evaluate local math
        actual_v2 = eval(f_expr)
        actual_v1 = eval(r_expr)
        
        print(f"Forward: {calc['v1']} -> Expected {calc['expected_v2']}, Got {actual_v2}")
        print(f"Reverse: {calc['expected_v2']} -> Expected {calc['v1']}, Got {actual_v1}")
        
        if abs(actual_v2 - calc['expected_v2']) < 1e-7 and abs(actual_v1 - calc['v1']) < 1e-7:
            print("SUCCESS: Math Verification Passed.")
            return True
        else:
            print("FAILED: Math discrepancy detected.")
            return False
            
    except Exception as e:
        print(f"FAILED: Verification error: {e}")
        return False

all_passed = True
for c in batch_2_registry:
    if not verify_math(c):
        all_passed = False
    time.sleep(1)

if all_passed:
    print("\nALL BATCH 2 CALCULATORS VERIFIED SUCCESSFULLY.")
else:
    print("\nSOME BATCH 2 VERIFICATIONS FAILED.")