@extends('layouts.app')

@section('title', 'Register')

@section('content')
<div class="container py-5">
    <div class="row justify-content-center">
        <div class="col-md-8 col-lg-6">
            <div class="card shadow">
                <div class="card-header bg-primary text-white text-center">
                    <h4 class="mb-0"><i class="bi bi-person-plus"></i> Create Account</h4>
                </div>
                <div class="card-body p-4">
                    <form method="POST" action="{{ route('register') }}">
                        @csrf
                        
                        <!-- Name -->
                        <div class="mb-3">
                            <label for="name" class="form-label">Full Name</label>
                            <input type="text" class="form-control @error('name') is-invalid @enderror" 
                                   id="name" name="name" value="{{ old('name') }}" required>
                            @error('name')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        
                        <!-- Email -->
                        <div class="mb-3">
                            <label for="email" class="form-label">Email Address</label>
                            <input type="email" class="form-control @error('email') is-invalid @enderror" 
                                   id="email" name="email" value="{{ old('email') }}" required>
                            @error('email')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        
                        <!-- Phone -->
                        <div class="mb-3">
                            <label for="phone" class="form-label">Phone Number</label>
                            <input type="tel" class="form-control @error('phone') is-invalid @enderror" 
                                   id="phone" name="phone" value="{{ old('phone') }}" 
                                   placeholder="+92-300-1234567">
                            @error('phone')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        
                        <!-- Password -->
                        <div class="mb-3">
                            <label for="password" class="form-label">Password</label>
                            <input type="password" class="form-control @error('password') is-invalid @enderror" 
                                   id="password" name="password" required>
                            @error('password')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        
                        <!-- Confirm Password -->
                        <div class="mb-4">
                            <label for="password_confirmation" class="form-label">Confirm Password</label>
                            <input type="password" class="form-control" 
                                   id="password_confirmation" name="password_confirmation" required>
                        </div>
                        
                        <!-- CAPTCHA -->
                        <div class="mb-4">
                            <label class="form-label">Verify you’re human</label>
                            <div class="d-flex align-items-center gap-3 flex-wrap">
                                <canvas id="captchaCanvas" width="220" height="72" class="border rounded" aria-hidden="true"></canvas>
                                <div class="d-flex flex-column gap-2">
                                    <div class="d-flex gap-2">
                                        <button type="button" class="btn btn-outline-secondary btn-sm" id="captchaRefresh">
                                            <i class="bi bi-arrow-clockwise"></i> Refresh
                                        </button>
                                        <button type="button" class="btn btn-outline-dark btn-sm" id="captchaAudio">
                                            <i class="bi bi-volume-up"></i> Audio
                                        </button>
                                    </div>
                                    <div class="form-text">Type the characters or solve the math.</div>
                                </div>
                            </div>
                            <input type="hidden" name="captcha_token" id="captchaToken">
                            <input type="text" class="form-control mt-2 @error('captcha_input') is-invalid @enderror" id="captchaInput" name="captcha_input" placeholder="Enter CAPTCHA" aria-describedby="captchaHelp" required>
                            <div id="captchaHelp" class="form-text">Accessible: use Audio to hear the challenge.</div>
                            @error('captcha_input')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                            <div id="captchaFeedback" class="small mt-1"></div>
                        </div>
                        
                        <!-- Submit Button -->
                        <div class="d-grid">
                            <button type="submit" class="btn btn-primary btn-lg">
                                <i class="bi bi-person-check"></i> Create Account
                            </button>
                        </div>
                    </form>
                    
                    <!-- Social Login -->
                    <div class="text-center my-4">
                        <p class="text-muted">Or register with</p>
                        <div class="d-flex gap-2 justify-content-center">
                            <a href="{{ route('auth.google') }}" class="btn btn-outline-danger">
                                <i class="bi bi-google"></i> Google
                            </a>
                            <a href="{{ route('auth.facebook') }}" class="btn btn-outline-primary">
                                <i class="bi bi-facebook"></i> Facebook
                            </a>
                        </div>
                    </div>
                    
                    <!-- Login Link -->
                    <div class="text-center">
                        <p class="mb-0">Already have an account? 
                            <a href="{{ route('login') }}" class="text-decoration-none">Login here</a>
                        </p>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
    // Phone number formatting
    document.getElementById('phone').addEventListener('input', function(e) {
        let value = e.target.value.replace(/\D/g, '');
        if (value.startsWith('92')) {
            value = '+' + value;
        } else if (value.startsWith('0')) {
            value = '+92' + value.substring(1);
        } else if (!value.startsWith('+92')) {
            value = '+92' + value;
        }
        e.target.value = value;
    });

    (function() {
        const canvas = document.getElementById('captchaCanvas');
        const ctx = canvas ? canvas.getContext('2d') : null;
        const tokenEl = document.getElementById('captchaToken');
        const inputEl = document.getElementById('captchaInput');
        const refreshBtn = document.getElementById('captchaRefresh');
        const audioBtn = document.getElementById('captchaAudio');
        const feedbackEl = document.getElementById('captchaFeedback');
        let current = { type: 'text', challenge: '' };

        function drawBackground() {
            if (!ctx) return;
            ctx.fillStyle = '#f8f9fa';
            ctx.fillRect(0, 0, canvas.width, canvas.height);
            for (let i = 0; i < 10; i++) {
                ctx.strokeStyle = `rgba(${rand(0,255)},${rand(0,255)},${rand(0,255)},0.25)`;
                ctx.beginPath();
                ctx.moveTo(rand(0, canvas.width), rand(0, canvas.height));
                ctx.lineTo(rand(0, canvas.width), rand(0, canvas.height));
                ctx.stroke();
            }
        }

        function drawChallenge(text) {
            if (!ctx) return;
            drawBackground();
            const chars = text.split('');
            let x = 20;
            chars.forEach((ch) => {
                const angle = (rand(-15, 15) * Math.PI) / 180;
                ctx.save();
                ctx.translate(x, 40);
                ctx.rotate(angle);
                ctx.font = `${rand(28, 34)}px sans-serif`;
                ctx.fillStyle = `rgb(${rand(0,120)},${rand(0,120)},${rand(0,120)})`;
                ctx.fillText(ch, 0, 0);
                ctx.restore();
                x += rand(22, 32);
            });
        }

        function drawMath(text) {
            if (!ctx) return;
            drawBackground();
            ctx.save();
            ctx.translate(20, 45);
            ctx.font = '32px sans-serif';
            ctx.fillStyle = '#343a40';
            ctx.fillText(text, 0, 0);
            ctx.restore();
        }

        function rand(min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; }

        async function loadCaptcha() {
            if (!tokenEl) return;
            if (feedbackEl) feedbackEl.textContent = '';
            if (inputEl) inputEl.value = '';
            const res = await fetch('{{ route('captcha.generate') }}', { headers: { 'Accept': 'application/json' } });
            const data = await res.json();
            tokenEl.value = data.token;
            current.type = data.type;
            current.challenge = data.challenge;
            if (data.type === 'text') {
                drawChallenge(data.challenge);
            } else {
                drawMath(data.challenge);
            }
        }

        function speakChallenge() {
            if (!('speechSynthesis' in window)) {
                if (feedbackEl) feedbackEl.textContent = 'Audio not supported on this browser.';
                return;
            }
            const utterance = new SpeechSynthesisUtterance();
            if (current.type === 'text') {
                utterance.text = current.challenge.split('').join(' ');
            } else {
                const parts = current.challenge.replace('+', ' plus ').replace('-', ' minus ');
                utterance.text = parts;
            }
            utterance.rate = 0.9;
            window.speechSynthesis.cancel();
            window.speechSynthesis.speak(utterance);
        }

        function clientValidate() {
            if (!feedbackEl || !inputEl) return;
            const val = inputEl.value.trim();
            if (!val) { feedbackEl.textContent = ''; return; }
            let ok;
            if (current.type === 'text') {
                ok = val.localeCompare(current.challenge, undefined, { sensitivity: 'accent' }) === 0;
            } else {
                ok = !isNaN(parseInt(val, 10));
            }
            feedbackEl.textContent = ok ? 'Looks good.' : 'Does not match yet.';
            feedbackEl.style.color = ok ? '#198754' : '#dc3545';
        }

        if (refreshBtn) refreshBtn.addEventListener('click', loadCaptcha);
        if (audioBtn) audioBtn.addEventListener('click', speakChallenge);
        if (inputEl) inputEl.addEventListener('input', clientValidate);

        const formEl = document.querySelector('form[action="{{ route('register') }}"]');
        if (formEl) {
            formEl.addEventListener('submit', function(e) {
                if (!inputEl || !inputEl.value.trim()) {
                    e.preventDefault();
                    if (feedbackEl) {
                        feedbackEl.textContent = 'Please solve the CAPTCHA.';
                        feedbackEl.style.color = '#dc3545';
                    }
                }
            });
        }

        const refreshOnLoad = {{ $errors->has('captcha_input') ? 'true' : 'false' }};
        loadCaptcha().then(() => { if (refreshOnLoad) loadCaptcha(); });
    })();
</script>
@endpush