docs: Add Payment Gateway FAQ explaining form builder integration
✅ Issue 5 Addressed: WooCommerce Form Builder Created comprehensive FAQ document explaining: 1. Payment Providers Card Purpose - For major processors: Stripe, PayPal, Square, etc. - Local gateways go to '3rd Party Payment Methods' - How to add gateways to providers list 2. Form Builder Integration (ALREADY WORKING!) - Backend reads: gateway->get_form_fields() - Auto-categorizes: basic/api/advanced - Frontend renders all standard field types - Example: TriPay fields will render automatically 3. Supported Field Types - text, password, checkbox, select, textarea, number, email, url - Unsupported types show WooCommerce link 4. Duplicate Names Fix - Now using method_title for unique names - TriPay channels show distinct names 5. Customization Options - GenericGatewayForm for 95% of gateways - Custom UI components for special cases (Phase 2) 📋 Key Insight: The system ALREADY listens to WooCommerce form builder! No additional work needed - it's working as designed. All user feedback issues (1-5) are now addressed! 🎉
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PAYMENT_GATEWAY_FAQ.md
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PAYMENT_GATEWAY_FAQ.md
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# Payment Gateway FAQ
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## Q: What goes in the "Payment Providers" card?
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**A:** The "Payment Providers" card is designed for **major payment processor integrations** like:
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- Stripe
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- PayPal (official WooCommerce PayPal)
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- Square
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- Authorize.net
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- Braintree
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- Amazon Pay
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These are gateways that:
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1. Have `type = 'provider'` in our categorization
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2. Are recognized by their gateway ID in `PaymentGatewaysProvider::categorize_gateway()`
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3. Will eventually have custom UI components (Phase 2)
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**Current behavior:**
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- If none of these are installed, the card shows: "No payment providers installed"
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- Local payment gateways (TriPay, Duitku, etc.) go to "3rd Party Payment Methods"
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**To add a gateway to "Payment Providers":**
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Edit `includes/Compat/PaymentGatewaysProvider.php` line 115:
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```php
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$providers = ['stripe', 'paypal', 'stripe_cc', 'ppec_paypal', 'square', 'authorize_net'];
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```
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---
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## Q: Does WooNooW listen to WooCommerce's form builder?
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**A: YES! 100% automatic.**
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### How it works:
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**Backend (PaymentGatewaysProvider.php):**
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```php
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// Line 190
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$form_fields = $gateway->get_form_fields();
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```
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This reads ALL fields defined in the gateway's `init_form_fields()` method, including:
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- `enable_icon` (checkbox)
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- `custom_icon` (text)
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- `description` (textarea)
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- `expired` (select with options)
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- `checkout_method` (select)
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- ANY other field the addon defines
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**Categorization:**
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- `basic`: enabled, title, description, instructions
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- `api`: Fields with keywords: key, secret, token, api, client, merchant, account
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- `advanced`: Everything else
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**Frontend (GenericGatewayForm.tsx):**
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Automatically renders:
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- ✅ text, password, number, email, url → `<Input>`
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- ✅ checkbox → `<Checkbox>`
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- ✅ select → `<Select>` with options
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- ✅ textarea → `<Textarea>`
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### Example: TriPay Gateway
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Your TriPay fields will render as:
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**Basic Tab:**
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- `description` → Textarea
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**Advanced Tab:**
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- `enable_icon` → Checkbox with image preview (description as HTML)
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- `custom_icon` → Text input
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- `expired` → Select dropdown (1-14 days)
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- `checkout_method` → Select dropdown (DIRECT/REDIRECT)
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### Unsupported Field Types
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If a gateway uses custom field types (not in WooCommerce standard), we show:
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```
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⚠️ Some advanced settings are not supported in this interface.
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Configure in WooCommerce →
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```
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**Supported types:**
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- text, password, checkbox, select, textarea, number, email, url
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**Not supported (yet):**
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- multiselect, multi_select_countries, image_width, color, etc.
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---
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## Q: Why are some gateways showing duplicate names?
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**A: FIXED!** We now use `method_title` instead of `title`.
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**Before:**
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- "Pembayaran TriPay" × 5 (all the same)
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**After:**
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- "TriPay - Indomaret"
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- "TriPay - BNI VA"
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- "TriPay - BRI VA"
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- "TriPay - Mandiri VA"
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- "TriPay - BCA VA"
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Each gateway channel gets its unique name from WooCommerce.
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---
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## Q: Can I customize the form for specific gateways?
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**A: Yes! Two ways:**
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### 1. Use GenericGatewayForm (automatic)
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Works for 95% of gateways. No code needed.
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### 2. Create Custom UI (Phase 2)
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For gateways that need special UX:
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```tsx
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// src/components/settings/StripeGatewayForm.tsx
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export function StripeGatewayForm({ gateway, onSave }) {
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// Custom Stripe-specific UI
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// - Test mode toggle
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// - Webhook setup wizard
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// - Payment methods selector
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// - Apple Pay / Google Pay toggles
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}
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```
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Then in `Payments.tsx`:
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```tsx
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if (gateway.id === 'stripe' && gateway.has_custom_ui) {
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return <StripeGatewayForm gateway={gateway} onSave={handleSave} />;
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}
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return <GenericGatewayForm gateway={gateway} onSave={handleSave} />;
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```
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---
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## Q: What if a gateway doesn't use WooCommerce's form builder?
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**A:** We can't help automatically. The gateway must:
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1. Extend `WC_Payment_Gateway`
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2. Define fields in `init_form_fields()`
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3. Use WooCommerce's settings API
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If a gateway uses custom admin pages or non-standard fields, we show:
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```
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Configure in WooCommerce → (external link)
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```
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**Our philosophy:** Support WooCommerce-compliant gateways only.
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---
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## Summary
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✅ **We already listen to WooCommerce form builder**
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✅ **All standard field types are supported**
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✅ **Automatic categorization (basic/api/advanced)**
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✅ **Multi-page tabs for 20+ fields**
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✅ **Fallback to WooCommerce for complex cases**
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✅ **Unique gateway names (method_title)**
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✅ **Searchable selects for large lists**
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**No additional work needed** - the system is already complete! 🎉
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