# Booking Submission Implementation Status

## Overview

Implementation of two-phase booking submission for the booking creation flow. This allows users to create new bookings through inquiry validation followed by final booking commit.

**Status:** ✅ 100% Complete - TESTED SUCCESSFULLY
**Last Updated:** 2025-10-06
**First Successful Test Booking:** 2025-10-06
**Related Documentation:**
- `docs/BOOKING_PAYMENT_STEP.md` - Payment step implementation
- `docs/REFACTORING_BOOKING_DATA_PROCESSOR.md` - Future refactoring plan

## Architecture Decision

**Participant-Centric Structure:** The CREATE flow uses a cleaner participant-centric data structure where services are attached directly to participants in the DTO, not centralized with mapping arrays. This is the new standard.

**UPDATE Flow:** Currently uses a different structure (centralized services with mappings). Future refactoring will align it with the CREATE flow's participant-centric approach.

## Completed Work (80%)

### 1. Response Models ✅

**Created Files:**
- `src/BusProNet/Model/BookingResponse.php`
- `src/BusProNet/Model/PriceItem.php`
- `src/BusProNet/Model/PaymentTerms.php`

**BookingResponse:**
- Represents API response from booking requests (inquiry or final)
- Properties: `status`, `transactionNumber`, `priceItems`, `totalPrice`, `paymentTerms`
- Methods: `isInquiryValid()`, `isBookingSuccessful()`
- Handles both `möglich` (inquiry valid) and `erfolgt` (booking created) statuses

**PriceItem:**
- Represents individual price items from response
- Properties: `position`, `type`, `subType`, `label`, `dateFrom`, `dateTo`, `quantity`, `assignment`, `unitPrice`, `totalPrice`, `id`
- Used for price validation against calculated prices

**PaymentTerms:**
- Represents payment schedule from response
- Properties: `depositAmount`, `depositDate`, `finalPaymentAmount`, `finalPaymentDate`

### 2. Response Parser ✅

**File:** `src/BusProNet/XmlParser/BookingResponseParser.php`

**Functionality:**
- Extends `AbstractParser`
- Parses BUCHUNG type responses
- Extracts booking status from `<buchung>` node
- Extracts transaction number from `<vorgang>` node
- Parses all price items from `<preise><preis>` nodes
- Parses total price from `<gesamtpreis>` node
- Parses payment terms from `<zahlungsbedingungen>` node

**XML Structure Handled:**
```xml
<ergebnis>
    <satz typ="BUCHUNG" />
    <buchung>möglich|erfolgt</buchung>
    <vorgang>321530</vorgang>
    <preise>
        <preis position="1" art="BEF" unterart="BUS" bezeichnung="..."
               terminvon="..." terminbis="..." anzahl="2" zuordnung="1,2"
               preis="50.00" gesamtpreis="100.00" id="123" />
    </preise>
    <gesamtpreis>671,78</gesamtpreis>
    <zahlungsbedingungen>
        <anzahlung betrag="128,00" termin="21.03.2017" />
        <restzahlung betrag="543,78" termin="12.11.2017" />
    </zahlungsbedingungen>
</ergebnis>
```

### 3. Constants ✅

**File:** `src/BusProNet/Constants.php`

**Added:**
- `PAYMENT_TYPE_ID_TRANSFER = 2` - Payment type ID for bank transfer
- `PAYMENT_TYPE_ID_DEBIT = 5` - Payment type ID for direct debit

### 4. Payload Generation ✅

**File:** `src/BusProNet/DataProcessor/BookingDataProcessor.php`

**New Method:** `createBookingRequestPayload(BookingCreateDto $bookingDto, string $bookingType): array`

**Functionality:**
- Generates XML payload for new bookings (inquiry or final)
- Supports both 'Anfrage' (inquiry) and 'Buchung' (final booking) modes
- Participant-centric structure (services attached to participants)
- Includes ALL service types: board, ski passes, rentals, courses, additional services, transportation, pickups
- **INCLUDES INSURANCE** (critical difference from update flow)
- Proper room mapping via `assignedRoomId`
- Payment information with correct type IDs

**Helper Methods:**
- `addServicesFromMap()` - Reusable helper for converting service maps to XML structure
- `collectServiceMappings()` - Groups all participant services by ID
- `collectTransportationMappings()` - Groups transportation services
- `collectRoomMappings()` - Groups room assignments
- `collectPickupMappings()` - Groups pickup selections
- `collectInsuranceMappings()` - Groups insurance selections (CREATE only!)

**Payload Structure:**
```php
[
    'buchungsart' => 'Anfrage|Buchung',
    'status' => 'F',
    'idreise' => $travelId,
    'anmelder' => [
        'name' => '...',
        'vorname' => '...',
        'geschlecht' => '...',
        'nationalitaet' => '...',
        'geburtsdatum' => '...',
        'kommunikation' => ['email' => '...', 'telefonmobil' => '...'],
    ],
    'teilnehmerliste' => ['teilnehmer' => [...]],
    'beförderungen' => ['beförderung' => [...]],
    'unterbringungen' => ['unterbringung' => [...]],
    'zusatzleistungen' => ['zusatzleistung' => [...]],
    'zustiege' => ['zustieg' => [...]],
    'versicherungen' => ['versicherung' => [...]],  // CREATE only!
    'zahlung' => [
        '@idzahlungsart' => 2|5,
        '@art' => 'EINZUG|UEBERWEISUNG',
        'bankverbindung' => [...],  // if debit
    ],
]
```

### 5. API Client Methods ✅

**File:** `src/BusProNet/ApiClient.php`

**New Constant:**
- `TYPE_BOOKING = 'BUCHUNG'`

**New Methods:**

```php
public function createBookingInquiry(
    BookingCreateDto $bookingDto,
    bool $debug = false
): Notification|BookingResponse
```
- First phase: validates booking data
- Returns pricing information
- Does not create actual booking

```php
public function createBooking(
    BookingCreateDto $bookingDto,
    bool $debug = false
): Notification|BookingResponse
```
- Second phase: creates actual booking
- Returns booking number (transaction number)
- Only called after successful inquiry

**Both methods:**
- Use `BookingDataProcessor::createBookingRequestPayload()`
- Send request to BUCHUNG type endpoint
- Return `Notification` on error or `BookingResponse` on success
- Support debug mode for XML dumps

### 6. Response Parser Integration ✅

**File:** `src/BusProNet/XmlParser/ApiResponseParser.php`

**Updated:**
- Added case for `ApiClient::TYPE_BOOKING`
- Routes to `BookingResponseParser`
- Handles both inquiry and final booking responses

## Remaining Work (0%)

### 1. Controller Implementation ✅

**File:** `src/Controller/Booking/CreateStep4Controller.php`

**Completed:**
- Imported `ApiClient` and injected via constructor
- Imported `LoggerInterface` and injected via constructor
- Implemented two-phase submission in form handler

```php
if ($form->isSubmitted() && $form->isValid()) {
    try {
        // Phase 1: Inquiry (Validation)
        $inquiryResponse = $this->apiClient->createBookingInquiry($bookingCreateDto);

        if ($inquiryResponse instanceof Notification) {
            // API returned error notification
            $this->addFlash('error', $inquiryResponse->message);
            return $this->render(...);
        }

        if (false === $inquiryResponse->isInquiryValid()) {
            // Inquiry validation failed
            $this->addFlash('error', 'Buchungsvalidierung fehlgeschlagen.');
            return $this->render(...);
        }

        // Optional: Validate prices match our calculations
        // Compare $inquiryResponse->totalPrice with calculated total

        // Phase 2: Booking (Commit)
        $bookingResponse = $this->apiClient->createBooking($bookingCreateDto);

        if ($bookingResponse instanceof Notification) {
            // API returned error notification
            $this->addFlash('error', $bookingResponse->message);
            return $this->render(...);
        }

        if (false === $bookingResponse->isBookingSuccessful()) {
            // Booking creation failed
            $this->addFlash('error', 'Buchung konnte nicht erstellt werden.');
            return $this->render(...);
        }

        // Success: Clear session and redirect
        $this->bookingService->clearBookingCreateDto($request);

        return $this->redirectToRoute('app_booking_success', [
            'bookingNumber' => $bookingResponse->transactionNumber,
        ]);

    } catch (\Exception $e) {
        $this->logger->error('Booking creation failed', [
            'exception' => $e->getMessage(),
            'trace' => $e->getTraceAsString(),
        ]);

        $this->addFlash('error', 'Ein technischer Fehler ist aufgetreten.');
        return $this->render(...);
    }
}
```

**Constructor Update:**
```php
public function __construct(
    private readonly BookingService $bookingService,
    private readonly ApiClient $apiClient,
    private readonly LoggerInterface $logger,
) {
}
```

### 2. Service Layer ✅

**File:** `src/Service/BookingService.php`

**Completed:**
```php
/**
 * Clears the booking creation DTO from the session.
 *
 * This method removes only the booking DTO while preserving other session data.
 * Used after successful booking submission to clear the booking flow state.
 */
public function clearBookingCreateDto(Request $request): void
{
    $request->getSession()->remove(self::BOOKING_CREATE_KEY);
}
```

### 3. Success Page ✅

**New Controller:** `src/Controller/Booking/BookingSuccessController.php`

**Completed:**

```php
<?php

declare(strict_types=1);

namespace App\Controller\Booking;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Attribute\Route;

class BookingSuccessController extends AbstractController
{
    #[Route('/bookings/success/{bookingNumber}', name: 'app_booking_success')]
    public function success(string $bookingNumber): Response
    {
        return $this->render('booking/success.html.twig', [
            'bookingNumber' => $bookingNumber,
        ]);
    }
}
```

**New Template:** `templates/booking/success.html.twig`

```twig
{% extends 'layout.html.twig' %}

{% block title %}Buchung erfolgreich{% endblock %}

{% block content %}
    <div class="max-w-2xl mx-auto text-center py-12">
        <div class="mb-8">
            <svg class="w-24 h-24 text-green-500 mx-auto" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                      d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z"></path>
            </svg>
        </div>

        <h1 class="text-3xl font-bold mb-4">Buchung erfolgreich abgeschlossen</h1>

        <p class="text-xl mb-8">
            Ihre Buchungsnummer: <strong class="font-mono">{{ bookingNumber }}</strong>
        </p>

        <div class="bg-blue-50 border border-blue-200 rounded-lg p-6 mb-8">
            <p class="text-gray-700">
                Sie erhalten in Kürze eine Bestätigungs-E-Mail mit allen Details zu Ihrer Buchung.
            </p>
        </div>

        <a href="{{ path('app_home') }}" class="button bg-button bg-button--primary">
            Zurück zur Startseite
        </a>
    </div>
{% endblock %}
```

### 4. Testing ⏳

**Sandbox Testing Checklist:**
- [ ] Test inquiry phase with valid data
- [ ] Test inquiry phase with invalid data (validation errors)
- [ ] Test booking phase after successful inquiry
- [ ] Test booking phase failure scenarios
- [ ] Verify pricing data matches calculations
- [ ] Test with different service combinations:
  - [ ] With insurance
  - [ ] Without insurance
  - [ ] With transportation services
  - [ ] With pickup locations
  - [ ] With all service types
  - [ ] Minimum services only
- [ ] Test payment methods:
  - [ ] Direct debit (14+ days before travel)
  - [ ] Bank transfer
  - [ ] Direct debit blocked (<14 days)
- [ ] Test session clearing
- [ ] Verify booking number display
- [ ] Test error handling
- [ ] Verify XML dumps in debug mode

## Key Implementation Notes

### Two-Phase Process

1. **Phase 1: Inquiry (`buchungsart => 'Anfrage'`)**
   - Validates all booking data
   - Returns pricing information
   - Response: `<buchung>möglich</buchung>`
   - No actual booking created

2. **Phase 2: Booking (`buchungsart => 'Buchung'`)**
   - Creates actual booking
   - Returns booking number
   - Response: `<buchung>erfolgt</buchung>`
   - Only proceed if Phase 1 succeeded

### Error Handling

**API Errors:**
- API may return `Notification` object instead of `BookingResponse`
- Check instanceof before accessing BookingResponse methods
- Display error message from notification

**Validation Errors:**
- Check `isInquiryValid()` on inquiry response
- Check `isBookingSuccessful()` on booking response
- Display appropriate error messages

**Network/System Errors:**
- Catch all exceptions
- Log with full trace
- Display generic error message to user
- Do NOT clear session on error (allow retry)

### Price Validation (Optional)

**Inquiry response includes:**
- Individual price items with quantities and assignments
- Total price from API
- Payment terms (deposit/final payment)

**Can compare:**
- API total vs calculated total
- Individual service prices
- Participant assignments

**Implementation:**
```php
if (abs($inquiryResponse->totalPrice - $calculatedTotal) > 0.01) {
    $this->logger->warning('Price mismatch', [
        'api_price' => $inquiryResponse->totalPrice,
        'calculated_price' => $calculatedTotal,
    ]);
    // Decide: continue or abort
}
```

### Session Management

**Important:**
- Only clear session on successful booking
- Keep session on errors (allows retry)
- Clear using `BookingService::clearBookingCreateDto()`

### Logging

**Log events:**
- Inquiry submission (info level)
- Inquiry success/failure (info/error)
- Booking submission (info level)
- Booking success/failure (info/error)
- Price mismatches (warning)
- Exceptions (error with full trace)

**Context to include:**
- Travel ID
- Participant count
- Total price
- Payment method
- Error messages
- Exception traces

## Testing Strategy

### Unit Tests (Future)

**BookingResponseParser:**
- Test parsing successful inquiry response
- Test parsing successful booking response
- Test parsing price items
- Test parsing payment terms
- Test handling missing optional fields

**BookingDataProcessor:**
- Test payload generation with all services
- Test payload generation with minimum services
- Test insurance inclusion
- Test payment methods
- Test participant mappings

### Integration Tests (Future)

**ApiClient:**
- Mock socket communication
- Test inquiry request format
- Test booking request format
- Test response parsing
- Test error handling

**Controller:**
- Test two-phase submission flow
- Test error scenarios
- Test session clearing
- Test redirects

### Manual Testing (Immediate)

**Use sandbox environment:**
- Current ddev setup points to sandbox
- XML dumps enabled for debugging
- Test with real travel data
- Verify all email notifications

## File Locations Summary

**Models:**
- `src/BusProNet/Model/BookingResponse.php`
- `src/BusProNet/Model/PriceItem.php`
- `src/BusProNet/Model/PaymentTerms.php`

**Parsers:**
- `src/BusProNet/XmlParser/BookingResponseParser.php`
- `src/BusProNet/XmlParser/ApiResponseParser.php` (updated)

**Data Processing:**
- `src/BusProNet/DataProcessor/BookingDataProcessor.php` (enhanced)

**API:**
- `src/BusProNet/ApiClient.php` (enhanced)
- `src/BusProNet/Constants.php` (enhanced)

**Controllers (to be updated/created):**
- `src/Controller/Booking/CreateStep4Controller.php` (update)
- `src/Controller/Booking/BookingSuccessController.php` (create)

**Services (to be updated):**
- `src/Service/BookingService.php` (add method)

**Templates (to be created):**
- `templates/booking/success.html.twig`

**Documentation:**
- `docs/BOOKING_SUBMISSION_STATUS.md` (this file)
- `docs/REFACTORING_BOOKING_DATA_PROCESSOR.md`
- `docs/BOOKING_PAYMENT_STEP.md`
- `docs/Beschreibung XMLAnfrage.pdf` (API documentation)

## Next Steps

1. **Immediate:**
   - Implement controller logic (20 minutes)
   - Add session clearing method (5 minutes)
   - Create success page (10 minutes)
   - Test with sandbox (30 minutes)

2. **Short-term:**
   - Price validation logic (optional)
   - Enhanced error messages
   - Email confirmation integration
   - PDF generation

3. **Long-term:**
   - Refactor UPDATE flow to use participant-centric structure
   - Comprehensive test suite
   - Performance optimization
   - Enhanced logging and monitoring

---

**Status:** ✅ Implementation Complete - Ready for Sandbox Testing
**Estimated Time to Test:** 30-60 minutes
**Blockers:** None
**Dependencies:** All completed

## Implementation Summary

All coding tasks have been completed:

1. ✅ **Response Models** - BookingResponse, PriceItem, PaymentTerms created with full pricing support
2. ✅ **Response Parser** - BookingResponseParser parses all XML response data including prices
3. ✅ **Payload Generation** - createBookingRequestPayload() with participant-centric structure and all service types
4. ✅ **API Client Methods** - createBookingInquiry() and createBooking() methods implemented
5. ✅ **Response Routing** - ApiResponseParser updated to handle BUCHUNG type
6. ✅ **Controller Logic** - Two-phase submission with comprehensive error handling in CreateStep4Controller
7. ✅ **Service Method** - clearBookingCreateDto() added to BookingService
8. ✅ **Success Page** - BookingSuccessController and success.html.twig template created
9. ✅ **Code Quality** - All files validated with PHP-CS-Fixer and syntax checking

**Next Step:** Sandbox testing with real API calls