dwindown 97f25aa6af fix(orders): Use billing address for shipping when not shipping to different address ...

## Critical Bug Fixed ✅

### Problem:
- User fills billing address (Country, State, City)
- Shipping says "No shipping methods available"
- Backend returns empty methods array
- No rates calculated

### Root Cause:
Frontend was only checking `shippingData` for completeness:
```ts
if (!shippingData.country) return false;
if (!shippingData.city) return false;
```

But when user doesn't check "Ship to different address":
- `shippingData` is empty {}
- Billing address has all the data
- Query never enabled!

### Solution:
Use effective shipping address based on `shipDiff` toggle:

```ts
const effectiveShippingAddress = useMemo(() => {
  if (shipDiff) {
    return shippingData; // Use separate shipping address
  }
  // Use billing address
  return {
    country: bCountry,
    state: bState,
    city: bCity,
    postcode: bPost,
    address_1: bAddr1,
  };
}, [shipDiff, shippingData, bCountry, bState, bCity, bPost, bAddr1]);
```

Then check completeness on effective address:
```ts
const isComplete = useMemo(() => {
  const addr = effectiveShippingAddress;
  if (!addr.country) return false;
  if (!addr.city) return false;
  if (hasStates && !addr.state) return false;
  return true;
}, [effectiveShippingAddress]);
```

### Backend Enhancement:
Also set billing address for tax calculation context:
```php
// Set both shipping and billing for proper tax calculation
WC()->customer->set_shipping_country( $country );
WC()->customer->set_billing_country( $country );
```

## Result:

### Before:
1. Fill billing: Indonesia, Jawa Barat, Bandung
2. Shipping: "No shipping methods available" ❌
3. No API call made

### After:
1. Fill billing: Indonesia, Jawa Barat, Bandung
2. ✅ API called with billing address
3. ✅ Returns: JNE REG, JNE YES, TIKI REG
4. ✅ First rate auto-selected
5. ✅ Total calculated with tax

## Testing:
- ✅ Fill billing only → Shipping calculated
- ✅ Check "Ship to different" → Use shipping address
- ✅ Uncheck → Switch back to billing
- ✅ Change billing city → Rates recalculate

2025-11-10 18:27:49 +07:00

84 KiB

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