# Story 11.2: Public Booking Form with Custom Captcha

## Epic Reference
**Epic 11:** Guest Booking

## Story Context
This story implements the main guest-facing booking interface at `/booking`. It replaces the placeholder page with a functional booking form that includes the availability calendar, guest contact fields, custom captcha for spam protection, and 1-per-day limit enforcement.

## User Story
As a **website visitor**,
I want **to request a consultation without creating an account**,
So that **I can easily reach out to the lawyer for legal assistance**.

## Acceptance Criteria

### Public Booking Page
- [ ] `/booking` route displays guest booking form for unauthenticated visitors
- [ ] Logged-in users redirected to `/client/consultations/book`
- [ ] Page uses public layout (`x-layouts.public`)
- [ ] Bilingual support (Arabic/English)
- [ ] Mobile responsive design

### Availability Calendar Integration
- [ ] Reuses existing `availability-calendar` Livewire component
- [ ] Shows available time slots (same as client view)
- [ ] Blocked/booked times not selectable

### Guest Contact Form
- [ ] Full name field (required, min 3 chars, max 255)
- [ ] Email field (required, valid email format)
- [ ] Phone field (required, valid format)
- [ ] Problem summary field (required, min 20 chars, max 2000)
- [ ] All fields have clear labels and validation messages
- [ ] Form follows Flux UI patterns

### Custom Captcha System
- [ ] Math-based captcha (e.g., "What is 7 + 3?")
- [ ] Question generated server-side, answer stored in session
- [ ] User must enter correct answer to submit
- [ ] Refresh button to get new captcha question
- [ ] Captcha validates before form submission
- [ ] Bilingual captcha labels

### 1-Per-Day Limit
- [ ] Check if email has pending/approved booking for selected date
- [ ] If limit reached, show error message and prevent submission
- [ ] Clear error message explaining the limit
- [ ] Limit applies per email address per calendar day

### Rate Limiting (Backup)
- [ ] Maximum 5 booking attempts per IP per 24 hours
- [ ] Rate limit error shown if exceeded

### Submission Flow
- [ ] Step 1: Select date/time from calendar
- [ ] Step 2: Fill contact info + problem summary + captcha
- [ ] Step 3: Confirmation screen showing all details
- [ ] Step 4: Submit creates guest consultation (status: pending)
- [ ] Success message with instructions to check email

## Implementation Steps

### Step 1: Create Captcha Service
Create `app/Services/CaptchaService.php`:

```php
<?php

namespace App\Services;

class CaptchaService
{
    private const SESSION_KEY = 'captcha_answer';

    /**
     * Generate a new math captcha question.
     * @return array{question: string, question_ar: string}
     */
    public function generate(): array
    {
        $num1 = rand(1, 10);
        $num2 = rand(1, 10);
        $answer = $num1 + $num2;

        session([self::SESSION_KEY => $answer]);

        return [
            'question' => "What is {$num1} + {$num2}?",
            'question_ar' => "ما هو {$num1} + {$num2}؟",
        ];
    }

    /**
     * Validate the user's captcha answer.
     */
    public function validate(mixed $answer): bool
    {
        $expected = session(self::SESSION_KEY);

        if (is_null($expected)) {
            return false;
        }

        return (int) $answer === (int) $expected;
    }

    /**
     * Clear the current captcha from session.
     */
    public function clear(): void
    {
        session()->forget(self::SESSION_KEY);
    }
}
```

### Step 2: Create Guest Booking Volt Component
Create `resources/views/livewire/pages/booking.php`:

```php
<?php

use App\Enums\ConsultationStatus;
use App\Enums\PaymentStatus;
use App\Mail\GuestBookingSubmittedMail;
use App\Mail\NewBookingAdminEmail;
use App\Models\Consultation;
use App\Models\User;
use App\Services\AvailabilityService;
use App\Services\CaptchaService;
use Carbon\Carbon;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\RateLimiter;
use Livewire\Volt\Component;

new class extends Component
{
    public ?string $selectedDate = null;
    public ?string $selectedTime = null;
    public string $guestName = '';
    public string $guestEmail = '';
    public string $guestPhone = '';
    public string $problemSummary = '';
    public string $captchaAnswer = '';
    public array $captchaQuestion = [];
    public bool $showConfirmation = false;

    public function mount(): void
    {
        // Redirect logged-in users to client booking
        if (auth()->check()) {
            $this->redirect(route('client.consultations.book'));
            return;
        }

        $this->refreshCaptcha();
    }

    public function refreshCaptcha(): void
    {
        $this->captchaQuestion = app(CaptchaService::class)->generate();
        $this->captchaAnswer = '';
    }

    public function selectSlot(string $date, string $time): void
    {
        $this->selectedDate = $date;
        $this->selectedTime = $time;
    }

    public function clearSelection(): void
    {
        $this->selectedDate = null;
        $this->selectedTime = null;
        $this->showConfirmation = false;
    }

    public function showConfirm(): void
    {
        $this->validate([
            'selectedDate' => ['required', 'date', 'after_or_equal:today'],
            'selectedTime' => ['required'],
            'guestName' => ['required', 'string', 'min:3', 'max:255'],
            'guestEmail' => ['required', 'email', 'max:255'],
            'guestPhone' => ['required', 'string', 'max:50'],
            'problemSummary' => ['required', 'string', 'min:20', 'max:2000'],
            'captchaAnswer' => ['required'],
        ]);

        // Validate captcha
        if (!app(CaptchaService::class)->validate($this->captchaAnswer)) {
            $this->addError('captchaAnswer', __('booking.invalid_captcha'));
            $this->refreshCaptcha();
            return;
        }

        // Check 1-per-day limit for this email
        $existingBooking = Consultation::query()
            ->where('guest_email', $this->guestEmail)
            ->whereDate('booking_date', $this->selectedDate)
            ->whereIn('status', [ConsultationStatus::Pending, ConsultationStatus::Approved])
            ->exists();

        if ($existingBooking) {
            $this->addError('guestEmail', __('booking.guest_already_booked_this_day'));
            return;
        }

        // Verify slot still available
        $service = app(AvailabilityService::class);
        $availableSlots = $service->getAvailableSlots(Carbon::parse($this->selectedDate));

        if (!in_array($this->selectedTime, $availableSlots)) {
            $this->addError('selectedTime', __('booking.slot_no_longer_available'));
            return;
        }

        $this->showConfirmation = true;
    }

    public function submit(): void
    {
        // Rate limiting by IP
        $ipKey = 'guest-booking:' . request()->ip();
        if (RateLimiter::tooManyAttempts($ipKey, 5)) {
            $this->addError('guestEmail', __('booking.too_many_attempts'));
            return;
        }
        RateLimiter::hit($ipKey, 60 * 60 * 24); // 24 hours

        try {
            DB::transaction(function () {
                // Double-check slot availability with lock
                $slotTaken = Consultation::query()
                    ->whereDate('booking_date', $this->selectedDate)
                    ->where('booking_time', $this->selectedTime)
                    ->whereIn('status', [ConsultationStatus::Pending, ConsultationStatus::Approved])
                    ->lockForUpdate()
                    ->exists();

                if ($slotTaken) {
                    throw new \Exception(__('booking.slot_taken'));
                }

                // Double-check 1-per-day with lock
                $emailHasBooking = Consultation::query()
                    ->where('guest_email', $this->guestEmail)
                    ->whereDate('booking_date', $this->selectedDate)
                    ->whereIn('status', [ConsultationStatus::Pending, ConsultationStatus::Approved])
                    ->lockForUpdate()
                    ->exists();

                if ($emailHasBooking) {
                    throw new \Exception(__('booking.guest_already_booked_this_day'));
                }

                // Create guest consultation
                $consultation = Consultation::create([
                    'user_id' => null,
                    'guest_name' => $this->guestName,
                    'guest_email' => $this->guestEmail,
                    'guest_phone' => $this->guestPhone,
                    'booking_date' => $this->selectedDate,
                    'booking_time' => $this->selectedTime,
                    'problem_summary' => $this->problemSummary,
                    'status' => ConsultationStatus::Pending,
                    'payment_status' => PaymentStatus::NotApplicable,
                ]);

                // Send confirmation to guest
                Mail::to($this->guestEmail)->queue(
                    new GuestBookingSubmittedMail($consultation)
                );

                // Notify admin
                $admin = User::query()->where('user_type', 'admin')->first();
                if ($admin) {
                    Mail::to($admin)->queue(
                        new NewBookingAdminEmail($consultation)
                    );
                }
            });

            // Clear captcha
            app(CaptchaService::class)->clear();

            session()->flash('success', __('booking.guest_submitted_successfully'));
            $this->redirect(route('booking.success'));

        } catch (\Exception $e) {
            $this->addError('selectedTime', $e->getMessage());
            $this->showConfirmation = false;
            $this->refreshCaptcha();
        }
    }
}; ?>

<x-layouts.public>
    <div class="max-w-4xl mx-auto py-8 px-4">
        <flux:heading size="xl" class="mb-6">
            {{ __('booking.request_consultation') }}
        </flux:heading>

        @if(session('success'))
            <flux:callout variant="success" class="mb-6">
                {{ session('success') }}
            </flux:callout>
        @endif

        @if(!$selectedDate || !$selectedTime)
            {{-- Step 1: Calendar Selection --}}
            <flux:callout class="mb-6">
                <p>{{ __('booking.guest_intro') }}</p>
            </flux:callout>

            <p class="mb-4 text-zinc-600 dark:text-zinc-400">
                {{ __('booking.select_date_time') }}
            </p>

            <livewire:availability-calendar />
        @else
            {{-- Step 2+: Contact Form & Confirmation --}}
            <div class="bg-amber-50 dark:bg-amber-900/20 p-4 rounded-lg mb-6 border border-amber-200 dark:border-amber-800">
                <div class="flex justify-between items-center">
                    <div>
                        <p class="font-semibold text-zinc-900 dark:text-zinc-100">
                            {{ __('booking.selected_time') }}
                        </p>
                        <p class="text-zinc-600 dark:text-zinc-400">
                            {{ \Carbon\Carbon::parse($selectedDate)->translatedFormat('l, d M Y') }}
                        </p>
                        <p class="text-zinc-600 dark:text-zinc-400">
                            {{ \Carbon\Carbon::parse($selectedTime)->format('g:i A') }}
                        </p>
                    </div>
                    <flux:button size="sm" wire:click="clearSelection">
                        {{ __('common.change') }}
                    </flux:button>
                </div>
            </div>

            @if(!$showConfirmation)
                {{-- Contact Form --}}
                <div class="space-y-4">
                    <flux:field>
                        <flux:label class="required">{{ __('booking.guest_name') }}</flux:label>
                        <flux:input wire:model="guestName" type="text" />
                        <flux:error name="guestName" />
                    </flux:field>

                    <flux:field>
                        <flux:label class="required">{{ __('booking.guest_email') }}</flux:label>
                        <flux:input wire:model="guestEmail" type="email" />
                        <flux:error name="guestEmail" />
                    </flux:field>

                    <flux:field>
                        <flux:label class="required">{{ __('booking.guest_phone') }}</flux:label>
                        <flux:input wire:model="guestPhone" type="tel" />
                        <flux:error name="guestPhone" />
                    </flux:field>

                    <flux:field>
                        <flux:label class="required">{{ __('booking.problem_summary') }}</flux:label>
                        <flux:textarea
                            wire:model="problemSummary"
                            rows="6"
                            placeholder="{{ __('booking.problem_summary_placeholder') }}"
                        />
                        <flux:description>{{ __('booking.problem_summary_help') }}</flux:description>
                        <flux:error name="problemSummary" />
                    </flux:field>

                    {{-- Custom Captcha --}}
                    <flux:field>
                        <flux:label class="required">
                            {{ app()->getLocale() === 'ar' ? $captchaQuestion['question_ar'] : $captchaQuestion['question'] }}
                        </flux:label>
                        <div class="flex gap-2">
                            <flux:input wire:model="captchaAnswer" type="text" class="w-32" />
                            <flux:button size="sm" wire:click="refreshCaptcha" type="button">
                                <flux:icon name="arrow-path" class="w-4 h-4" />
                            </flux:button>
                        </div>
                        <flux:error name="captchaAnswer" />
                    </flux:field>

                    <flux:button
                        wire:click="showConfirm"
                        class="w-full sm:w-auto min-h-[44px]"
                        wire:loading.attr="disabled"
                    >
                        <span wire:loading.remove wire:target="showConfirm">{{ __('booking.continue') }}</span>
                        <span wire:loading wire:target="showConfirm">{{ __('common.loading') }}</span>
                    </flux:button>
                </div>
            @else
                {{-- Confirmation Step --}}
                <flux:callout>
                    <flux:heading size="sm">{{ __('booking.confirm_booking') }}</flux:heading>
                    <p class="text-zinc-600 dark:text-zinc-400">{{ __('booking.confirm_message') }}</p>

                    <div class="mt-4 space-y-2">
                        <p><strong>{{ __('booking.guest_name') }}:</strong> {{ $guestName }}</p>
                        <p><strong>{{ __('booking.guest_email') }}:</strong> {{ $guestEmail }}</p>
                        <p><strong>{{ __('booking.guest_phone') }}:</strong> {{ $guestPhone }}</p>
                        <p><strong>{{ __('booking.date') }}:</strong>
                            {{ \Carbon\Carbon::parse($selectedDate)->translatedFormat('l, d M Y') }}</p>
                        <p><strong>{{ __('booking.time') }}:</strong>
                            {{ \Carbon\Carbon::parse($selectedTime)->format('g:i A') }}</p>
                        <p><strong>{{ __('booking.duration') }}:</strong> 45 {{ __('common.minutes') }}</p>
                    </div>

                    <div class="mt-4">
                        <p><strong>{{ __('booking.problem_summary') }}:</strong></p>
                        <p class="mt-1 text-sm text-zinc-600 dark:text-zinc-400">{{ $problemSummary }}</p>
                    </div>
                </flux:callout>

                <div class="flex flex-col sm:flex-row gap-3 mt-4">
                    <flux:button wire:click="$set('showConfirmation', false)" class="w-full sm:w-auto min-h-[44px]">
                        {{ __('common.back') }}
                    </flux:button>
                    <flux:button
                        wire:click="submit"
                        variant="primary"
                        wire:loading.attr="disabled"
                        class="w-full sm:w-auto min-h-[44px]"
                    >
                        <span wire:loading.remove wire:target="submit">{{ __('booking.submit_request') }}</span>
                        <span wire:loading wire:target="submit">{{ __('common.submitting') }}</span>
                    </flux:button>
                </div>

                @error('selectedTime')
                    <flux:callout variant="danger" class="mt-4">
                        {{ $message }}
                    </flux:callout>
                @enderror
            @endif
        @endif
    </div>
</x-layouts.public>
```

### Step 3: Update Routes
Update `routes/web.php`:

```php
// Replace placeholder route with Volt component
Volt::route('/booking', 'pages.booking')->name('booking');
Volt::route('/booking/success', 'pages.booking-success')->name('booking.success');
```

### Step 4: Create Success Page
Create `resources/views/livewire/pages/booking-success.php`:

```php
<?php
use Livewire\Volt\Component;

new class extends Component {
    //
}; ?>

<x-layouts.public>
    <div class="max-w-2xl mx-auto py-16 px-4 text-center">
        <flux:icon name="check-circle" class="w-16 h-16 mx-auto text-green-500 mb-6" />

        <flux:heading size="xl" class="mb-4">
            {{ __('booking.success_title') }}
        </flux:heading>

        <p class="text-zinc-600 dark:text-zinc-400 mb-6">
            {{ __('booking.success_message') }}
        </p>

        <flux:button href="{{ route('home') }}">
            {{ __('navigation.home') }}
        </flux:button>
    </div>
</x-layouts.public>
```

### Step 5: Add Translation Keys
Add to `lang/en/booking.php`:
```php
'guest_intro' => 'Request a consultation appointment. No account required - simply fill in your details below.',
'guest_name' => 'Full Name',
'guest_email' => 'Email Address',
'guest_phone' => 'Phone Number',
'guest_already_booked_this_day' => 'This email already has a booking request for the selected date. Please choose a different date.',
'guest_submitted_successfully' => 'Your booking request has been submitted. Please check your email for confirmation.',
'invalid_captcha' => 'Incorrect answer. Please try again.',
'too_many_attempts' => 'Too many booking attempts. Please try again later.',
'success_title' => 'Booking Request Submitted!',
'success_message' => 'We have received your consultation request. You will receive an email confirmation shortly. Our team will review your request and contact you.',
```

Add to `lang/ar/booking.php`:
```php
'guest_intro' => 'اطلب موعد استشارة. لا حاجة لإنشاء حساب - ما عليك سوى ملء بياناتك أدناه.',
'guest_name' => 'الاسم الكامل',
'guest_email' => 'البريد الإلكتروني',
'guest_phone' => 'رقم الهاتف',
'guest_already_booked_this_day' => 'هذا البريد الإلكتروني لديه طلب حجز بالفعل للتاريخ المحدد. يرجى اختيار تاريخ آخر.',
'guest_submitted_successfully' => 'تم تقديم طلب الحجز الخاص بك. يرجى التحقق من بريدك الإلكتروني للتأكيد.',
'invalid_captcha' => 'إجابة خاطئة. يرجى المحاولة مرة أخرى.',
'too_many_attempts' => 'محاولات حجز كثيرة جداً. يرجى المحاولة لاحقاً.',
'success_title' => 'تم تقديم طلب الحجز!',
'success_message' => 'لقد تلقينا طلب الاستشارة الخاص بك. ستتلقى رسالة تأكيد عبر البريد الإلكتروني قريباً. سيقوم فريقنا بمراجعة طلبك والتواصل معك.',
```

## Testing Requirements

### Feature Tests
```php
test('guest can view booking page', function () {
    $this->get(route('booking'))
        ->assertOk()
        ->assertSee(__('booking.request_consultation'));
});

test('logged in user is redirected to client booking', function () {
    $user = User::factory()->client()->create();

    $this->actingAs($user)
        ->get(route('booking'))
        ->assertRedirect(route('client.consultations.book'));
});

test('guest can submit booking request', function () {
    // Setup working hours and available slot
    WorkingHour::factory()->create([
        'day_of_week' => now()->addDay()->dayOfWeek,
        'is_active' => true,
        'start_time' => '09:00',
        'end_time' => '17:00',
    ]);

    $date = now()->addDay()->format('Y-m-d');

    Volt::test('pages.booking')
        ->call('selectSlot', $date, '09:00')
        ->set('guestName', 'John Doe')
        ->set('guestEmail', 'john@example.com')
        ->set('guestPhone', '+970599123456')
        ->set('problemSummary', 'I need legal advice regarding a contract dispute with my employer.')
        ->set('captchaAnswer', session('captcha_answer'))
        ->call('showConfirm')
        ->assertSet('showConfirmation', true)
        ->call('submit')
        ->assertRedirect(route('booking.success'));

    $this->assertDatabaseHas('consultations', [
        'guest_email' => 'john@example.com',
        'guest_name' => 'John Doe',
        'user_id' => null,
    ]);
});

test('guest cannot book twice on same day', function () {
    $date = now()->addDay()->format('Y-m-d');

    // Create existing booking for this email
    Consultation::factory()->guest()->create([
        'guest_email' => 'john@example.com',
        'booking_date' => $date,
        'status' => ConsultationStatus::Pending,
    ]);

    Volt::test('pages.booking')
        ->call('selectSlot', $date, '10:00')
        ->set('guestName', 'John Doe')
        ->set('guestEmail', 'john@example.com')
        ->set('guestPhone', '+970599123456')
        ->set('problemSummary', 'Another consultation request for testing purposes.')
        ->set('captchaAnswer', session('captcha_answer'))
        ->call('showConfirm')
        ->assertHasErrors(['guestEmail']);
});

test('invalid captcha prevents submission', function () {
    Volt::test('pages.booking')
        ->call('selectSlot', now()->addDay()->format('Y-m-d'), '09:00')
        ->set('guestName', 'John Doe')
        ->set('guestEmail', 'john@example.com')
        ->set('guestPhone', '+970599123456')
        ->set('problemSummary', 'I need legal advice regarding a contract dispute.')
        ->set('captchaAnswer', 'wrong-answer')
        ->call('showConfirm')
        ->assertHasErrors(['captchaAnswer']);
});

test('rate limiting prevents excessive booking attempts', function () {
    $ipKey = 'guest-booking:127.0.0.1';

    // Exhaust the rate limit (5 attempts)
    for ($i = 0; $i < 5; $i++) {
        RateLimiter::hit($ipKey, 60 * 60 * 24);
    }

    WorkingHour::factory()->create([
        'day_of_week' => now()->addDay()->dayOfWeek,
        'is_active' => true,
        'start_time' => '09:00',
        'end_time' => '17:00',
    ]);

    $date = now()->addDay()->format('Y-m-d');

    $component = Volt::test('pages.booking')
        ->call('selectSlot', $date, '09:00')
        ->set('guestName', 'John Doe')
        ->set('guestEmail', 'john@example.com')
        ->set('guestPhone', '+970599123456')
        ->set('problemSummary', 'I need legal advice regarding a contract dispute with my employer.')
        ->set('captchaAnswer', session('captcha_answer'))
        ->call('showConfirm')
        ->call('submit')
        ->assertHasErrors(['guestEmail']);

    RateLimiter::clear($ipKey);
});

test('slot taken during submission shows error', function () {
    WorkingHour::factory()->create([
        'day_of_week' => now()->addDay()->dayOfWeek,
        'is_active' => true,
        'start_time' => '09:00',
        'end_time' => '17:00',
    ]);

    $date = now()->addDay()->format('Y-m-d');

    // Start the booking process
    $component = Volt::test('pages.booking')
        ->call('selectSlot', $date, '09:00')
        ->set('guestName', 'John Doe')
        ->set('guestEmail', 'john@example.com')
        ->set('guestPhone', '+970599123456')
        ->set('problemSummary', 'I need legal advice regarding a contract dispute with my employer.')
        ->set('captchaAnswer', session('captcha_answer'))
        ->call('showConfirm')
        ->assertSet('showConfirmation', true);

    // Simulate another booking taking the slot before submission
    Consultation::factory()->guest()->create([
        'booking_date' => $date,
        'booking_time' => '09:00',
        'status' => ConsultationStatus::Pending,
    ]);

    // Try to submit - should fail with slot taken error
    $component->call('submit')
        ->assertHasErrors(['selectedTime']);
});
```

## Dependencies
- Story 11.1 (Database Schema & Model Updates) - provides guest fields on Consultation model
- Story 11.3 (Guest Notifications) - provides `GuestBookingSubmittedMail` and `NewBookingAdminEmail` mailable classes

**Note:** The mailable classes used in this story (`GuestBookingSubmittedMail`, `NewBookingAdminEmail`) are created in Story 11.3. During implementation, either implement Story 11.3 first or create stub mailable classes temporarily.

## Definition of Done
- [x] Guest booking form functional at `/booking`
- [x] Logged-in users redirected to client booking
- [x] Availability calendar shows correct slots
- [x] Contact form validates all fields
- [x] Custom captcha prevents automated submissions
- [x] 1-per-day limit enforced by email
- [x] IP rate limiting working
- [x] Success page displays after submission
- [x] All translations in place (Arabic/English)
- [x] Mobile responsive
- [x] All tests pass

---

## Dev Agent Record

### Agent Model Used
Claude Opus 4.5 (claude-opus-4-5-20251101)

### Completion Notes
- Created `CaptchaService` for math-based captcha generation and validation
- Created `GuestBookingSubmittedMail` mailable with bilingual email templates
- Created guest booking Volt component at `pages/booking.blade.php` with Layout attribute pattern
- Created success page at `pages/booking-success.blade.php`
- Updated routes to use Volt routes for `/booking` and `/booking/success`
- Added all required translation keys for both English and Arabic
- Implemented 16 feature tests covering all acceptance criteria
- All tests pass (16 tests, 52 assertions)

### File List
**Created:**
- `app/Services/CaptchaService.php`
- `app/Mail/GuestBookingSubmittedMail.php`
- `resources/views/emails/booking/guest-submitted/en.blade.php`
- `resources/views/emails/booking/guest-submitted/ar.blade.php`
- `resources/views/livewire/pages/booking.blade.php`
- `resources/views/livewire/pages/booking-success.blade.php`
- `tests/Feature/Public/GuestBookingTest.php`

**Modified:**
- `routes/web.php` - Updated booking routes to use Volt
- `lang/en/booking.php` - Added guest booking translations
- `lang/ar/booking.php` - Added guest booking translations

### Change Log
| Date | Change | Reason |
|------|--------|--------|
| 2026-01-03 | Initial implementation | Story 11.2 development |

---

## QA Results

### Review Date: 2026-01-03

### Reviewed By: Quinn (Test Architect)

### Code Quality Assessment

**Overall: Strong Implementation** - The guest booking form implementation demonstrates solid engineering practices with proper attention to security, race condition handling, and user experience. The code follows Laravel/Livewire best practices and the project's coding standards.

**Strengths Identified:**
1. **Robust Concurrency Control**: The use of `lockForUpdate()` in database transactions prevents race conditions for both slot booking and 1-per-day email limit - excellent defensive coding
2. **Comprehensive Validation**: Multi-layer validation at both `showConfirm()` and `submit()` stages provides proper user feedback and data integrity
3. **Clean Architecture**: CaptchaService is well-encapsulated with single responsibility
4. **Proper Rate Limiting**: IP-based rate limiting (5 attempts/24h) provides spam protection
5. **Bilingual Support**: All user-facing strings use translation helpers, email templates available in both languages
6. **Test Coverage**: 16 comprehensive tests covering all acceptance criteria and edge cases

### Requirements Traceability

| AC # | Acceptance Criteria | Test Coverage | Status |
|------|---------------------|---------------|--------|
| 1 | `/booking` route displays guest booking form | `guest can view booking page` | ✓ |
| 2 | Logged-in users redirected to `/client/consultations/book` | `logged in user is redirected to client booking` | ✓ |
| 3 | Page uses public layout | Uses `#[Layout('components.layouts.public')]` | ✓ |
| 4 | Bilingual support (Arabic/English) | Translation files verified | ✓ |
| 5 | Mobile responsive design | Flux UI + min-h-[44px] touch targets | ✓ |
| 6 | Reuses existing availability-calendar component | `<livewire:availability-calendar />` used | ✓ |
| 7 | Contact form validates all fields | `form validation requires all fields` | ✓ |
| 8 | Name min 3 chars | `guest name must be at least 3 characters` | ✓ |
| 9 | Problem summary min 20 chars | `problem summary must be at least 20 characters` | ✓ |
| 10 | Custom captcha (math-based) | CaptchaService with session storage | ✓ |
| 11 | Captcha refresh button | `refreshCaptcha()` method, `guest can refresh captcha` test | ✓ |
| 12 | Captcha validation | `invalid captcha prevents submission` | ✓ |
| 13 | 1-per-day limit by email | `guest cannot book twice on same day` | ✓ |
| 14 | Rate limiting by IP | `rate limiting prevents excessive booking attempts` | ✓ |
| 15 | Multi-step submission flow | selectSlot → showConfirm → submit flow verified | ✓ |
| 16 | Success page with instructions | `success page is accessible after booking` | ✓ |
| 17 | Slot concurrency protection | `slot taken during submission shows error` | ✓ |

### Compliance Check

- Coding Standards: ✓ Class-based Volt component with Layout attribute, Flux UI components used, Model::query() pattern followed
- Project Structure: ✓ Files in correct locations per story specification
- Testing Strategy: ✓ 16 Pest tests with Volt::test() pattern, Mail::fake() and RateLimiter::clear() used properly
- All ACs Met: ✓ All 17 acceptance criteria items have corresponding implementation and tests

### Improvements Checklist

All items below are advisory recommendations - none are blocking issues:

- [x] Rate limiting implemented correctly (5 attempts/24h)
- [x] Captcha service encapsulated properly
- [x] Transaction with locks for race condition prevention
- [x] Email notifications queued properly
- [ ] **Consider** adding phone validation regex (currently max:50 only) - low priority enhancement
- [ ] **Consider** adding ARIA labels to captcha for accessibility - enhancement for future accessibility audit
- [ ] **Consider** logging failed booking attempts for security monitoring - future enhancement

### Security Review

**Status: PASS**

1. **Spam Protection**: Math captcha + IP rate limiting provides adequate protection for public form
2. **Race Conditions**: Properly handled with `lockForUpdate()` in transactions
3. **Input Validation**: All inputs validated with appropriate rules
4. **XSS Prevention**: Blade templating with {{ }} escaping
5. **Email Injection**: Using Laravel Mail facade with proper email validation
6. **No sensitive data exposure**: Guest phone/email properly stored, no PII in URLs

**Minor Note**: The captcha uses simple addition (1-10 + 1-10). While sufficient for basic spam prevention, sophisticated bots could solve this. For a legal firm's booking system, this is acceptable given the rate limiting backup.

### Performance Considerations

**Status: PASS**

1. **Database Queries**: Efficient with proper indexes assumed on `guest_email`, `booking_date`, `booking_time`
2. **Email Sending**: Queued (`implements ShouldQueue`) - no blocking requests
3. **Session Storage**: Captcha stored in session (minimal overhead)
4. **No N+1**: Single consultation insert with direct attribute assignment

### Files Modified During Review

No files were modified during this review. Implementation is clean and follows standards.

### Gate Status

**Gate: PASS** → `docs/qa/gates/11.2-public-booking-form.yml`

### Recommended Status

**✓ Ready for Done**

The story implementation is complete, well-tested, and meets all acceptance criteria. The code demonstrates strong security practices with proper race condition handling and spam protection. All 16 tests pass with 52 assertions.