feat: Add Acres to Hectares calculator and update the calculator backlog list.

agents/readme.md

@@ -40,6 +40,13 @@ Whenever a new calculator is created:
     - `_kad_element_hook`: `kadence_after_header`
     - `_kad_element_show_conditionals`: `'[{"rule":"singular|calculator","select":"ids","ids":[<CALCULATOR_POST_ID>],"mustMatch":false}]'`
 
+## 4. Required Mathematical Verification
+After the Kadence Element is injected and the calculator is live, **you must verify the math works in both directions** using the live WordPress post.
+1. Determine a known "Unit A to Unit B" conversion (e.g., 1 inch = 2.54 cm).
+2. Execute an HTTP/URL request simulating the Unit A input (e.g., `?v1=1`) and verify the output accurately reflects Unit B.
+3. Reverse the test: simulate the Unit B input (e.g., `?v2=2.54`) and verify the output accurately reflects Unit A.
+4. If either math direction fails or produces precision floating-point inaccuracies, you must correct the Kadence Element JavaScript block.
+
 ## 4. Calculator Registry
 To avoid unnecessary scraping of the REST API, immediately update the `calculators_list.md` file located in the workspace directory with the details (Title, Post ID, Kadence Element ID) upon successful deployment.
 

calculators_list.md

@@ -8,3 +8,204 @@ Whenever a new calculator is published via the REST API, it must be appended her
 | Inches to Feet | 16 | 57 | inches-to-feet | 12 |
 | Kilograms to Pounds | 54 | 28 | kilograms-to-pounds | 0.453592 |
 | Miles to Kilometers | 102 | 103 | miles-to-kilometers | 0.62137119 |
+| Acres to Hectares | 107 | 108 | acres-to-hectares | 0.404686 |
+
+## Backlog / To-Do
+- [ ] Acres to square feet
+- [ ] Amps to volts
+- [ ] Amps to watts
+- [ ] Angstroms to nanometers
+- [ ] Apothecary ounces to grams
+- [ ] ASCII to binary
+- [ ] Astronomical units to light years
+- [ ] Atmosphere to mmHg
+- [ ] Attograms to femtograms
+- [ ] Bar to Pascal
+- [ ] Bar to PSI
+- [ ] Becquerel to curie
+- [ ] Becquerel to rutherford
+- [ ] Binary to ASCII
+- [ ] Binary to decimal
+- [ ] Binary to hex
+- [ ] Bits to bytes
+- [ ] BTU to kilojoules
+- [ ] BTU/hour to watts
+- [ ] Bytes to bits
+- [ ] Calories to joules
+- [ ] Calories to kilojoules
+- [ ] Candela to lumens
+- [ ] Carats to grams
+- [ ] Celsius to Fahrenheit
+- [ ] Centimeters to inches
+- [ ] CFS to CMS
+- [ ] CMS to CFS
+- [ ] Coulomb per kilogram to roentgen
+- [ ] Cups to milliliters
+- [ ] Curie to becquerel
+- [ ] Daltons to atomic mass units
+- [ ] Days to hours
+- [ ] Days to weeks
+- [ ] Days to years
+- [ ] Decimal degrees to degrees, minutes, and seconds
+- [ ] Decimal to binary
+- [ ] Decimal to fraction
+- [ ] Decimal to hex
+- [ ] Decimal to octal
+- [ ] Decibels to intensity
+- [ ] Decibels to sound pressure level
+- [ ] Decibels to volts
+- [ ] Decibels to watts
+- [ ] Degrees to mils
+- [ ] Degrees to radians
+- [ ] Degrees, minutes, and seconds to decimal degrees
+- [ ] Dynes to newtons
+- [ ] Ergs to joules
+- [ ] Fahrenheit to Celsius
+- [ ] Feet to meters
+- [ ] Feet per second to meters per second
+- [ ] Femtograms to attograms
+- [ ] Fluid ounces to milliliters
+- [ ] Foot-pounds to newton-meters
+- [ ] Fractions to decimals
+- [ ] Gallons per minute to liters per second
+- [ ] Gallons to liters
+- [ ] Gigabytes to megabytes
+- [ ] Gigabytes to terabytes
+- [ ] Grains to grams
+- [ ] Grams to apothecary ounces
+- [ ] Grams to carats
+- [ ] Grams to grains
+- [ ] Grams to milligrams
+- [ ] Grams to moles (requires molar mass — see list 2 if chemical context unknown)
+- [ ] Grams to ounces
+- [ ] Grams to pennyweights
+- [ ] Grams to troy ounces
+- [ ] Gray to rad
+- [ ] Hectares to acres
+- [ ] Hex to binary
+- [ ] Hex to decimal
+- [ ] Horsepower to kilowatts
+- [ ] Hours to days
+- [ ] Hours to minutes
+- [ ] Inches of mercury to pascals
+- [ ] Inches of water to pascals
+- [ ] Inches to centimeters
+- [ ] Inches to millimeters
+- [ ] Joules to calories
+- [ ] Joules to ergs
+- [ ] Kilocalories to kilojoules
+- [ ] Kilograms to pounds
+- [ ] Kilograms to slugs
+- [ ] Kilojoules to BTU
+- [ ] Kilojoules to kilocalories
+- [ ] Kilometers per hour to miles per hour
+- [ ] Kilometers to miles
+- [ ] Kilometers to nautical miles
+- [ ] Kilowatts to horsepower
+- [ ] Kilowatts to tons of refrigeration
+- [ ] Kilowatt-hours to megajoules
+- [ ] Knots to miles per hour
+- [ ] Light years to astronomical units
+- [ ] Light years to parsecs
+- [ ] Liters per second to gallons per minute
+- [ ] Liters to gallons
+- [ ] Liters to pints
+- [ ] Liters to quarts
+- [ ] Long tons to metric tons
+- [ ] Lumens to candela
+- [ ] Lumens to lux
+- [ ] Lux to lumens
+- [ ] Megabytes to gigabytes
+- [ ] Megajoules to kilowatt-hours
+- [ ] Megapascals to PSI
+- [ ] Megapixels to resolution (geometric math only)
+- [ ] Meters per second to feet per second
+- [ ] Meters per second to miles per hour
+- [ ] Meters per second to yards per second
+- [ ] Meters to feet
+- [ ] Meters to yards
+- [ ] Metric tons to long tons
+- [ ] Metric tons to short tons
+- [ ] Micrograms to milligrams
+- [ ] Micrometers to millimeters
+- [ ] Micrometers to nanometers
+- [ ] Microns to angstroms
+- [ ] Miles per gallon to kilometers per liter
+- [ ] Miles per gallon to liters per 100 km
+- [ ] Miles per hour to kilometers per hour
+- [ ] Miles per hour to knots
+- [ ] Miles per hour to meters per second
+- [ ] Miles to kilometers
+- [ ] Milligrams to grams
+- [ ] Milligrams to micrograms
+- [ ] Milliliters to cups
+- [ ] Milliliters to fluid ounces
+- [ ] Milliliters to tablespoons
+- [ ] Milliliters to teaspoons
+- [ ] Millimeters to inches
+- [ ] Millimeters to microns
+- [ ] Minutes to hours
+- [ ] Minutes to seconds
+- [ ] Nanograms to picograms
+- [ ] Nanometers to micrometers
+- [ ] Nautical miles to kilometers
+- [ ] Newton-meters to foot-pounds
+- [ ] Newtons to dynes
+- [ ] Ohms to siemens
+- [ ] Ounces to grams
+- [ ] Ounces to pounds
+- [ ] Pascal to atmosphere
+- [ ] Pascals to inches of mercury
+- [ ] Pascals to inches of water
+- [ ] Pennyweights to grams
+- [ ] Percent to PPM
+- [ ] Pints to liters
+- [ ] Pounds to kilograms
+- [ ] Pounds to ounces
+- [ ] Pounds to stones
+- [ ] Pounds to tons
+- [ ] PPI to DPI
+- [ ] PSI to bar
+- [ ] PSI to megapascals
+- [ ] Rad to gray
+- [ ] Rad/s to RPM
+- [ ] Radians to degrees
+- [ ] Rem to sievert
+- [ ] Roentgen to coulomb per kilogram
+- [ ] RPM to rad/s
+- [ ] Rutherford to becquerel
+- [ ] Seconds to milliseconds
+- [ ] Seconds to minutes
+- [ ] Siemens to ohms
+- [ ] Sievert to rem
+- [ ] Slugs to kilograms
+- [ ] Sound pressure level to decibels
+- [ ] Square centimeters to square inches
+- [ ] Square feet to acres
+- [ ] Square feet to square meters
+- [ ] Square inches to square centimeters
+- [ ] Square kilometers to square meters
+- [ ] Square meters to square feet
+- [ ] Square meters to square kilometers
+- [ ] Square miles to square yards
+- [ ] Square yards to square miles
+- [ ] Stones to pounds
+- [ ] Tablespoons to milliliters
+- [ ] Teaspoons to milliliters
+- [ ] Terabytes to gigabytes
+- [ ] Terabytes to petabytes
+- [ ] Tons of refrigeration to kilowatts
+- [ ] Tons to pounds
+- [ ] Torr to Pascal
+- [ ] Troy ounces to grams
+- [ ] Volts to amps
+- [ ] Volts to decibels
+- [ ] Watts to amps
+- [ ] Watts to BTU/hour
+- [ ] Watts to decibels
+- [ ] Watts to horsepower
+- [ ] Weeks to months
+- [ ] Yards per second to meters per second
+- [ ] Yards to meters
+- [ ] Yoctograms to zeptograms
+- [ ] Zeptograms to yoctograms

verify_batch_1.py

@@ -0,0 +1,114 @@
+import urllib.request
+import re
+import math
+import time
+
+calculators = [
+    {
+        "url": "acres-to-square-feet",
+        "factor": 43560,
+        "method1": "multiply" 
+    },
+    {
+        "url": "angstroms-to-nanometers",
+        "factor": 0.1,
+        "method1": "multiply"
+    },
+    {
+        "url": "apothecary-ounces-to-grams",
+        "factor": 31.1034768,
+        "method1": "multiply"
+    },
+    {
+        "url": "astronomical-units-to-light-years",
+        "factor": 0.0000158125074,
+        "method1": "multiply"
+    },
+    {
+        "url": "atmosphere-to-mmhg",
+        "factor": 760,
+        "method1": "multiply"
+    }
+]
+
+def extract_values_from_js(html_content):
+    # Added [eE\-\+] support for scientific notation (e.g., 1.5812e-05)
+    match1 = re.search(r'let val2.*?val1\s*([*\/\&#0-9;x]+)\s*([0-9.eE\-\+]+);', html_content)
+    match2 = re.search(r'let val1.*?val2\s*([*\/\&#0-9;x]+)\s*([0-9.eE\-\+]+);', html_content)
+    return match1, match2
+
+def clean_op(op_str):
+    if "*" in op_str or "*" in op_str or "x" in op_str.lower():
+        return "*"
+    elif "/" in op_str or "/" in op_str:
+        return "/"
+    return op_str
+
+def test_math(val_in, target_factor, op):
+    if op == "*":
+        return val_in * target_factor
+    else:
+        return val_in / target_factor
+
+all_passed = True
+
+print("Starting Bidirectional Verification Process...\n")
+
+for calc in calculators:
+    base_url = f"https://howdoyouconvert.com/calculator/{calc['url']}/?ao_noptimize=1" # Bypass Autoptimize cache
+    print(f"Testing: {base_url}")
+    
+    req = urllib.request.Request(base_url, headers={'User-Agent': 'Mozilla/5.0'})
+    try:
+        resp = urllib.request.urlopen(req)
+        html = resp.read().decode('utf-8')
+    except Exception as e:
+        print("  [FAIL] Could not load page:", e)
+        all_passed = False
+        continue
+
+    m1, m2 = extract_values_from_js(html)
+    
+    if not m1 or not m2:
+        print("  [FAIL] Could not locate the injected JavaScript formulas.")
+        all_passed = False
+        continue
+    
+    op1, factor1 = m1.groups()
+    op2, factor2 = m2.groups()
+    
+    op1 = clean_op(op1)
+    op2 = clean_op(op2)
+    
+    factor1 = float(factor1)
+    factor2 = float(factor2)
+    
+    # 1. Forward Test
+    test_val1 = 10.0
+    expected_v2 = test_math(test_val1, calc["factor"], "*" if calc["method1"] == "multiply" else "/")
+    actual_v2 = test_math(test_val1, factor1, op1)
+    
+    if not math.isclose(expected_v2, actual_v2, rel_tol=1e-5):
+        print(f"  [FAIL] Forward Test mismatch! Expected {expected_v2}, got {actual_v2}")
+        all_passed = False
+    else:
+        print(f"  [PASS] Forward Test: 10 {op1} {factor1} = {actual_v2}")
+        
+    # 2. Reverse Test
+    test_val2 = actual_v2
+    expected_v1 = test_val1
+    actual_v1 = test_math(test_val2, factor2, op2)
+    
+    if not math.isclose(expected_v1, actual_v1, rel_tol=1e-5):
+        print(f"  [FAIL] Reverse Test mismatch! Expected {expected_v1}, got {actual_v1}")
+        all_passed = False
+    else:
+        print(f"  [PASS] Reverse Test: {test_val2} {op2} {factor2} = {actual_v1}")
+        
+    print("")
+    time.sleep(0.5)
+
+if all_passed:
+    print("✅ Verification Complete: All 5 calculators passed bidirectional testing accurately.")
+else:
+    print("❌ Verification Failed: One or more calculators failed math tolerances.")