// Main application logic
document.addEventListener('DOMContentLoaded', function() {
    // Style selection
    const styleButtons = document.querySelectorAll('.style-btn');
    let selectedStyle = 'realistic';
    
    styleButtons.forEach(btn => {
        btn.addEventListener('click', () => {
            styleButtons.forEach(b => b.classList.remove('active'));
            btn.classList.add('active');
            selectedStyle = btn.dataset.style;
        });
    });
    
    // Set default active style
    document.querySelector('[data-style="realistic"]').classList.add('active');
    
    // Generate button functionality
    const generateBtn = document.getElementById('generate-btn');
    const textInput = document.getElementById('text-input');
    const progressContainer = document.getElementById('progress-container');
    const progressBar = document.getElementById('progress-bar');
    const progressPercent = document.getElementById('progress-percent');
    const previewContainer = document.getElementById('preview-container');
    const canvas = document.getElementById('3d-canvas');
    const actionButtons = document.getElementById('action-buttons');
    const renderTime = document.getElementById('render-time');
    
    generateBtn.addEventListener('click', async () => {
        const text = textInput.value.trim();
        
        if (!text) {
            showNotification('Please enter a description for your 3D design', 'warning');
            return;
        }
        
        // Show progress
        progressContainer.classList.remove('hidden');
        generateBtn.disabled = true;
        generateBtn.classList.add('opacity-50', 'cursor-not-allowed');
        
        // Simulate generation progress
        let progress = 0;
        const startTime = Date.now();
        
        const progressInterval = setInterval(() => {
            progress += Math.random() * 15;
            if (progress > 90) progress = 90;
            
            progressBar.style.width = `${progress}%`;
            progressPercent.textContent = `${Math.round(progress)}%`;
        }, 200);
        
        // Simulate API call
        setTimeout(() => {
            clearInterval(progressInterval);
            progressBar.style.width = '100%';
            progressPercent.textContent = '100%';
            
            // Generate 3D visualization
            generate3DVisualization(text, selectedStyle);
            
            // Calculate render time
            const endTime = Date.now();
            const renderDuration = ((endTime - startTime) / 1000).toFixed(1);
            renderTime.textContent = `Rendered in ${renderDuration}s`;
            
            // Show result
            setTimeout(() => {
                progressContainer.classList.add('hidden');
                generateBtn.disabled = false;
                generateBtn.classList.remove('opacity-50', 'cursor-not-allowed');
                actionButtons.classList.remove('hidden');
                canvas.classList.remove('hidden');
                previewContainer.querySelector('.text-center').classList.add('hidden');
                
                // Add to recent creations
                addToRecentCreations(text);
            }, 500);
        }, 3000);
    });
    // Enhanced 3D Visualization
    function generate3DVisualization(description, style) {
        const ctx = canvas.getContext('2d');
        canvas.width = canvas.offsetWidth;
        canvas.height = canvas.offsetHeight;
        
        // Store the visualization data for animation
        canvas.dataset.description = description;
        canvas.dataset.style = style;
        canvas.dataset.rotation = '0';
        
        draw3DModel(ctx, canvas.width, canvas.height, style, 0);
    }
    
    function draw3DModel(ctx, width, height, style, rotation) {
        // Clear canvas
        ctx.clearRect(0, 0, width, height);
        
        // Create gradient background based on style
        let gradient;
        switch(style) {
            case 'cartoon':
                gradient = ctx.createLinearGradient(0, 0, width, height);
                gradient.addColorStop(0, '#fef3c7');
                gradient.addColorStop(0.5, '#fed7aa');
                gradient.addColorStop(1, '#fbbf24');
                break;
            case 'minimalist':
                gradient = ctx.createLinearGradient(0, 0, width, height);
                gradient.addColorStop(0, '#f3f4f6');
                gradient.addColorStop(0.5, '#e5e7eb');
                gradient.addColorStop(1, '#d1d5db');
                break;
            case 'fantasy':
                gradient = ctx.createRadialGradient(width/2, height/2, 0, width/2, height/2, width/2);
                gradient.addColorStop(0, '#ddd6fe');
                gradient.addColorStop(0.3, '#f9a8d4');
                gradient.addColorStop(0.6, '#c084fc');
                gradient.addColorStop(1, '#818cf8');
                break;
            default: // realistic
                gradient = ctx.createLinearGradient(0, 0, width, height);
                gradient.addColorStop(0, '#0f172a');
                gradient.addColorStop(0.5, '#1e293b');
                gradient.addColorStop(1, '#334155');
        }
        
        ctx.fillStyle = gradient;
        ctx.fillRect(0, 0, width, height);
        
        // Add grid for depth perception
        ctx.strokeStyle = style === 'minimalist' ? 'rgba(0, 0, 0, 0.1)' : 'rgba(255, 255, 255, 0.05)';
        ctx.lineWidth = 1;
        const gridSize = 30;
        
        for (let x = 0; x <= width; x += gridSize) {
            ctx.beginPath();
            ctx.moveTo(x, 0);
            ctx.lineTo(x, height);
            ctx.stroke();
        }
        
        for (let y = 0; y <= height; y += gridSize) {
            ctx.beginPath();
            ctx.moveTo(0, y);
            ctx.lineTo(width, y);
            ctx.stroke();
        }
        
        const centerX = width / 2;
        const centerY = height / 2;
        
        // Main 3D object - More complex and realistic
        ctx.save();
        ctx.translate(centerX, centerY);
        
        // Rotate the entire scene
        ctx.rotate(rotation);
        
        // Draw 3D cube with proper perspective
        const size = 100;
        const depth = 60;
        
        // Back faces (darker)
        ctx.fillStyle = style === 'cartoon' ? 'rgba(251, 191, 36, 0.4)' : 
                       style === 'minimalist' ? 'rgba(156, 163, 175, 0.3)' :
                       style === 'fantasy' ? 'rgba(168, 85, 247, 0.4)' :
                       'rgba(14, 165, 233, 0.3)';
        ctx.strokeStyle = style === 'cartoon' ? 'rgba(251, 191, 36, 0.8)' :
                          style === 'minimalist' ? 'rgba(75, 85, 99, 0.8)' :
                          style === 'fantasy' ? 'rgba(168, 85, 247, 0.8)' :
                          'rgba(14, 165, 233, 0.8)';
        ctx.lineWidth = 2;
        
        // Back face
        ctx.beginPath();
        ctx.rect(-size/2 - depth/3, -size/2 - depth/3, size, size);
        ctx.fill();
        ctx.stroke();
        
        // Side faces
        ctx.fillStyle = style === 'cartoon' ? 'rgba(251, 191, 36, 0.5)' : 
                       style === 'minimalist' ? 'rgba(156, 163, 175, 0.4)' :
                       style === 'fantasy' ? 'rgba(236, 72, 153, 0.5)' :
                       'rgba(217, 70, 239, 0.4)';
        
        // Right face
        ctx.beginPath();
        ctx.moveTo(size/2, -size/2);
        ctx.lineTo(size/2 + depth/3, -size/2 - depth/3);
        ctx.lineTo(size/2 + depth/3, size/2 - depth/3);
        ctx.lineTo(size/2, size/2);
        ctx.closePath();
        ctx.fill();
        ctx.stroke();
        
        // Top face
        ctx.beginPath();
        ctx.moveTo(-size/2, -size/2);
        ctx.lineTo(-size/2 - depth/3, -size/2 - depth/3);
        ctx.lineTo(size/2 - depth/3, -size/2 - depth/3);
        ctx.lineTo(size/2, -size/2);
        ctx.closePath();
        ctx.fill();
        ctx.stroke();
        
        // Front face (brightest)
        ctx.fillStyle = style === 'cartoon' ? 'rgba(251, 191, 36, 0.7)' : 
                       style === 'minimalist' ? 'rgba(156, 163, 175, 0.6)' :
                       style === 'fantasy' ? 'rgba(236, 72, 153, 0.7)' :
                       'rgba(14, 165, 233, 0.6)';
        
        ctx.beginPath();
        ctx.rect(-size/2, -size/2, size, size);
        ctx.fill();
        ctx.stroke();
        
        // Add decorative elements based on style
        if (style === 'fantasy') {
            // Add sparkles
            ctx.fillStyle = 'rgba(255, 255, 255, 0.8)';
            for (let i = 0; i < 5; i++) {
                const sparkleX = (Math.random() - 0.5) * size * 1.5;
                const sparkleY = (Math.random() - 0.5) * size * 1.5;
                const sparkleSize = Math.random() * 3 + 1;
                
                ctx.beginPath();
                ctx.arc(sparkleX, sparkleY, sparkleSize, 0, Math.PI * 2);
                ctx.fill();
            }
        } else if (style === 'cartoon') {
            // Add cartoon eyes
            ctx.fillStyle = 'white';
            ctx.beginPath();
            ctx.arc(-20, -10, 12, 0, Math.PI * 2);
            ctx.arc(20, -10, 12, 0, Math.PI * 2);
            ctx.fill();
            
            ctx.fillStyle = 'black';
            ctx.beginPath();
            ctx.arc(-20, -10, 6, 0, Math.PI * 2);
            ctx.arc(20, -10, 6, 0, Math.PI * 2);
            ctx.fill();
        }
        
        ctx.restore();
        
        // Add shadow
        ctx.save();
        ctx.translate(centerX, centerY + 100);
        ctx.scale(1, 0.3);
        ctx.fillStyle = 'rgba(0, 0, 0, 0.2)';
        ctx.beginPath();
        ctx.ellipse(0, 0, size/2, size/4, 0, 0, Math.PI * 2);
        ctx.fill();
        ctx.restore();
        
        // Add text overlay
        ctx.fillStyle = style === 'minimalist' ? 'rgba(0, 0, 0, 0.7)' : 'rgba(255, 255, 255, 0.9)';
        ctx.font = 'bold 14px sans-serif';
        ctx.textAlign = 'center';
        ctx.fillText('3D Model Generated!', centerX, height - 20);
    }
// Add to recent creations
    function addToRecentCreations(description) {
        const recentContainer = document.getElementById('recent-creations');
        const newItem = document.createElement('div');
        newItem.className = 'bg-gray-800/50 rounded-lg overflow-hidden hover:scale-105 transition-transform duration-300 cursor-pointer opacity-0';
        
        const randomSeed = Math.floor(Math.random() * 100);
        newItem.innerHTML = `
            <img src="http://static.photos/abstract/320x240/${randomSeed}" alt="Creation" class="w-full h-40 object-cover">
            <div class="p-3">
                <p class="text-sm text-gray-300 truncate">${description.substring(0, 30)}${description.length > 30 ? '...' : ''}</p>
                <p class="text-xs text-gray-500">Just now</p>
            </div>
        `;
        
        recentContainer.insertBefore(newItem, recentContainer.firstChild);
        
        // Animate in
        setTimeout(() => {
            newItem.classList.remove('opacity-0');
            newItem.classList.add('opacity-100');
        }, 100);
        
        // Remove last item if more than 4
        if (recentContainer.children.length > 4) {
            recentContainer.removeChild(recentContainer.lastChild);
        }
    }
    
    // Notification system
    function showNotification(message, type = 'info') {
        const notification = document.createElement('div');
        notification.className = `fixed top-20 right-4 px-6 py-3 rounded-lg shadow-lg transform translate-x-full transition-transform duration-300 z-50`;
        
        const bgColor = type === 'warning' ? 'bg-yellow-500' : type === 'error' ? 'bg-red-500' : 'bg-primary-500';
        notification.classList.add(bgColor);
        
        notification.innerHTML = `
            <div class="flex items-center gap-2 text-white">
                <i data-feather="${type === 'warning' ? 'alert-triangle' : 'info'}" class="w-5 h-5"></i>
                <span>${message}</span>
            </div>
        `;
        
        document.body.appendChild(notification);
        feather.replace();
        
        // Animate in
        setTimeout(() => {
            notification.classList.remove('translate-x-full');
            notification.classList.add('translate-x-0');
        }, 100);
        
        // Remove after 3 seconds
        setTimeout(() => {
            notification.classList.add('translate-x-full');
            setTimeout(() => {
                notification.remove();
            }, 300);
        }, 3000);
    }
    // Enhanced Canvas animation loop
    let animationId;
    function animateCanvas() {
        if (!canvas.classList.contains('hidden') && canvas.dataset.style) {
            const rotation = (Date.now() / 1000) % (Math.PI * 2);
            const ctx = canvas.getContext('2d');
            
            draw3DModel(
                ctx, 
                canvas.width, 
                canvas.height, 
                canvas.dataset.style, 
                rotation * 0.5
            );
        }
        animationId = requestAnimationFrame(animateCanvas);
    }
    
    // Start animation loop
    animateCanvas();
    
    // Clean up animation when canvas is hidden
    const observer = new MutationObserver((mutations) => {
        mutations.forEach((mutation) => {
            if (mutation.type === 'attributes' && mutation.attributeName === 'class') {
                if (canvas.classList.contains('hidden')) {
                    cancelAnimationFrame(animationId);
                } else if (canvas.dataset.style) {
                    animateCanvas();
                }
            }
        });
    });
    
    observer.observe(canvas, { attributes: true });
});

// Smooth scroll for anchor links
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function (e) {
        e.preventDefault();
        const target = document.querySelector(this.getAttribute('href'));
        if (target) {
            target.scrollIntoView({ behavior: 'smooth' });
        }
    });
});

// Intersection Observer for animations
const observerOptions = {
    threshold: 0.1,
    rootMargin: '0px 0px -50px 0px'
};

const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
        if (entry.isIntersecting) {
            entry.target.classList.add('animate-fadeIn');
        }
    });
}, observerOptions);

document.querySelectorAll('.section-animate').forEach(el => {
    observer.observe(el);
});