// =============================================
// PrintPro - Main Frontend Script
// =============================================

// --- DEFAULT PRICING DATA ---
const DEFAULT_PRICING = {
    products: {
        'business-cards': {
            name: 'Business Cards',
            icon: 'credit-card',
            image: 'http://static.photos/office/320x240/42',
            basePrice: 19.00,
            sizes: [
                { id: '3.5x2', name: '3.5" x 2"', price: 0 },
                { id: '3.5x2-rounded', name: '3.5" x 2" Rounded', price: 4 },
                { id: '3.5x2-square', name: '3.5" x 3.5" Square', price: 6 }
            ],
            paperTypes: [
                { id: '14pt-gloss', name: '14pt Gloss', price: 0 },
                { id: '16pt-matte', name: '16pt Matte', price: 6 },
                { id: '14pt-uncoated', name: '14pt Uncoated', price: 3 },
                { id: '16pt-silk', name: '16pt Silk', price: 8 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'matte', name: 'Matte Coating', price: 5 },
                { id: 'gloss', name: 'Gloss Coating', price: 5 },
                { id: 'uv', name: 'UV Spot Gloss', price: 12 },
                { id: 'foil', name: 'Foil Stamp', price: 18 }
            ],
            quantityTiers: [
                { min: 50, max: 250, multiplier: 1.0, label: '50-250' },
                { min: 251, max: 500, multiplier: 0.75, label: '251-500' },
                { min: 501, max: 1000, multiplier: 0.55, label: '501-1K' },
                { min: 1001, max: 2500, multiplier: 0.40, label: '1K-2.5K' },
                { min: 2501, max: 5000, multiplier: 0.30, label: '2.5K-5K' },
                { min: 5001, max: 10000, multiplier: 0.22, label: '5K-10K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 15 },
                { id: 'express', name: 'Express (1-2 days)', price: 30 }
            ],
            defaultQuantity: 500
        },
        'flyers': {
            name: 'Flyers',
            icon: 'file-text',
            image: 'http://static.photos/office/320x240/55',
            basePrice: 35.00,
            sizes: [
                { id: '8.5x11', name: '8.5" x 11"', price: 0 },
                { id: '5.5x8.5', name: '5.5" x 8.5"', price: -3 },
                { id: '11x17', name: '11" x 17"', price: 8 }
            ],
            paperTypes: [
                { id: '100lb-gloss', name: '100lb Gloss', price: 0 },
                { id: '80lb-matte', name: '80lb Matte', price: -2 },
                { id: '100lb-uncoated', name: '100lb Uncoated', price: 2 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'matte', name: 'Matte Coating', price: 8 },
                { id: 'gloss', name: 'Gloss Coating', price: 8 }
            ],
            quantityTiers: [
                { min: 50, max: 250, multiplier: 1.0, label: '50-250' },
                { min: 251, max: 500, multiplier: 0.70, label: '251-500' },
                { min: 501, max: 1000, multiplier: 0.50, label: '501-1K' },
                { min: 1001, max: 5000, multiplier: 0.35, label: '1K-5K' },
                { min: 5001, max: 10000, multiplier: 0.25, label: '5K-10K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 20 },
                { id: 'express', name: 'Express (1-2 days)', price: 40 }
            ],
            defaultQuantity: 250
        },
        'brochures': {
            name: 'Brochures',
            icon: 'book-open',
            image: 'http://static.photos/office/320x240/67',
            basePrice: 55.00,
            sizes: [
                { id: '8.5x11-bi', name: '8.5"x11" Bi-Fold', price: 0 },
                { id: '8.5x11-tri', name: '8.5"x11" Tri-Fold', price: 3 },
                { id: '11x17-bi', name: '11"x17" Bi-Fold', price: 10 }
            ],
            paperTypes: [
                { id: '100lb-gloss', name: '100lb Gloss', price: 0 },
                { id: '80lb-matte', name: '80lb Matte', price: -3 },
                { id: '100lb-silk', name: '100lb Silk', price: 5 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'matte', name: 'Matte Coating', price: 10 },
                { id: 'gloss', name: 'Gloss Coating', price: 10 }
            ],
            quantityTiers: [
                { min: 25, max: 100, multiplier: 1.0, label: '25-100' },
                { min: 101, max: 250, multiplier: 0.70, label: '101-250' },
                { min: 251, max: 500, multiplier: 0.52, label: '251-500' },
                { min: 501, max: 1000, multiplier: 0.40, label: '501-1K' },
                { min: 1001, max: 5000, multiplier: 0.30, label: '1K-5K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 25 },
                { id: 'express', name: 'Express (1-2 days)', price: 50 }
            ],
            defaultQuantity: 100
        },
        'banners': {
            name: 'Banners',
            icon: 'flag',
            image: 'http://static.photos/office/320x240/78',
            basePrice: 45.00,
            sizes: [
                { id: '24x36', name: '24" x 36"', price: 0 },
                { id: '36x48', name: '36" x 48"', price: 15 },
                { id: '48x72', name: '48" x 72"', price: 35 }
            ],
            paperTypes: [
                { id: 'vinyl', name: '13oz Vinyl', price: 0 },
                { id: 'mesh', name: 'Mesh Vinyl', price: 8 },
                { id: 'fabric', name: 'Fabric', price: 20 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'grommets', name: 'Grommets', price: 5 },
                { id: 'pole-pockets', name: 'Pole Pockets', price: 10 }
            ],
            quantityTiers: [
                { min: 1, max: 5, multiplier: 1.0, label: '1-5' },
                { min: 6, max: 10, multiplier: 0.80, label: '6-10' },
                { min: 11, max: 25, multiplier: 0.65, label: '11-25' },
                { min: 26, max: 50, multiplier: 0.50, label: '26-50' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 20 },
                { id: 'express', name: 'Express (1-2 days)', price: 45 }
            ],
            defaultQuantity: 1
        },
        'stickers': {
            name: 'Stickers & Labels',
            icon: 'sticky-note',
            image: 'http://static.photos/office/320x240/91',
            basePrice: 25.00,
            sizes: [
                { id: '2x2', name: '2" x 2"', price: 0 },
                { id: '3x3', name: '3" x 3"', price: 5 },
                { id: '4x4', name: '4" x 4"', price: 8 },
                { id: 'custom-die', name: 'Custom Die-Cut', price: 15 }
            ],
            paperTypes: [
                { id: 'white-vinyl', name: 'White Vinyl', price: 0 },
                { id: 'clear-vinyl', name: 'Clear Vinyl', price: 5 },
                { id: 'metallic', name: 'Metallic', price: 10 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'matte-lam', name: 'Matte Laminate', price: 6 },
                { id: 'gloss-lam', name: 'Gloss Laminate', price: 6 }
            ],
            quantityTiers: [
                { min: 50, max: 250, multiplier: 1.0, label: '50-250' },
                { min: 251, max: 500, multiplier: 0.70, label: '251-500' },
                { min: 501, max: 1000, multiplier: 0.48, label: '501-1K' },
                { min: 1001, max: 2500, multiplier: 0.35, label: '1K-2.5K' },
                { min: 2501, max: 5000, multiplier: 0.25, label: '2.5K-5K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 12 },
                { id: 'express', name: 'Express (1-2 days)', price: 28 }
            ],
            defaultQuantity: 250
        },
        'postcards': {
            name: 'Postcards',
            icon: 'mail',
            image: 'http://static.photos/office/320x240/33',
            basePrice: 28.00,
            sizes: [
                { id: '4x6', name: '4" x 6"', price: 0 },
                { id: '5x7', name: '5" x 7"', price: 4 },
                { id: '6x9', name: '6" x 9"', price: 7 },
                { id: '6x11', name: '6" x 11"', price: 10 }
            ],
            paperTypes: [
                { id: '14pt-gloss', name: '14pt Gloss', price: 0 },
                { id: '16pt-matte', name: '16pt Matte', price: 5 },
                { id: '14pt-uncoated', name: '14pt Uncoated', price: 2 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'matte', name: 'Matte Coating', price: 5 },
                { id: 'gloss', name: 'Gloss Coating', price: 5 },
                { id: 'uv-front', name: 'UV Front Only', price: 8 }
            ],
            quantityTiers: [
                { min: 100, max: 500, multiplier: 1.0, label: '100-500' },
                { min: 501, max: 1000, multiplier: 0.72, label: '501-1K' },
                { min: 1001, max: 2500, multiplier: 0.52, label: '1K-2.5K' },
                { min: 2501, max: 5000, multiplier: 0.38, label: '2.5K-5K' },
                { min: 5001, max: 10000, multiplier: 0.28, label: '5K-10K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 12 },
                { id: 'express', name: 'Express (1-2 days)', price: 28 }
            ],
            defaultQuantity: 500
        },
        'letterhead': {
            name: 'Letterhead',
            icon: 'file',
            image: 'http://static.photos/office/320x240/44',
            basePrice: 40.00,
            sizes: [
                { id: '8.5x11', name: '8.5" x 11"', price: 0 },
                { id: '8.5x14', name: '8.5" x 14"', price: 5 }
            ],
            paperTypes: [
                { id: '24lb-bond', name: '24lb Bond', price: 0 },
                { id: '28lb-bond', name: '28lb Bond', price: 5 },
                { id: '32lb-bond', name: '32lb Bond', price: 10 },
                { id: 'linen', name: 'Linen Finish', price: 15 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'watermark', name: 'Watermark', price: 8 }
            ],
            quantityTiers: [
                { min: 100, max: 500, multiplier: 1.0, label: '100-500' },
                { min: 501, max: 1000, multiplier: 0.70, label: '501-1K' },
                { min: 1001, max: 2500, multiplier: 0.48, label: '1K-2.5K' },
                { min: 2501, max: 5000, multiplier: 0.35, label: '2.5K-5K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 18 },
                { id: 'express', name: 'Express (1-2 days)', price: 38 }
            ],
            defaultQuantity: 500
        },
        'envelopes': {
            name: 'Envelopes',
            icon: 'mail-open',
            image: 'http://static.photos/office/320x240/56',
            basePrice: 32.00,
            sizes: [
                { id: '10-standard', name: '#10 Standard', price: 0 },
                { id: 'a7', name: 'A7 (5.25x7.25)', price: 3 },
                { id: 'a2', name: 'A2 (4.375x5.75)', price: 0 }
            ],
            paperTypes: [
                { id: '24lb-white', name: '24lb White Wove', price: 0 },
                { id: '28lb-white', name: '28lb White Wove', price: 4 },
                { id: 'kraft', name: 'Kraft Brown', price: 3 }
            ],
            finishing: [
                { id: 'none', name: 'None', price: 0 },
                { id: 'window', name: 'Window', price: 5 },
                { id: 'peel-seal', name: 'Peel & Seal', price: 4 }
            ],
            quantityTiers: [
                { min: 100, max: 500, multiplier: 1.0, label: '100-500' },
                { min: 501, max: 1000, multiplier: 0.72, label: '501-1K' },
                { min: 1001, max: 2500, multiplier: 0.52, label: '1K-2.5K' },
                { min: 2501, max: 5000, multiplier: 0.36, label: '2.5K-5K' }
            ],
            turnaround: [
                { id: 'standard', name: 'Standard (5-7 days)', price: 0 },
                { id: 'rush', name: 'Rush (3-4 days)', price: 15 },
                { id: 'express', name: 'Express (1-2 days)', price: 32 }
            ],
            defaultQuantity: 250
        }
    }
};

// --- INITIALIZE PRICING ---
function getPricing() {
    const stored = localStorage.getItem('printpro_pricing');
    if (stored) {
        try {
            return JSON.parse(stored);
        } catch (e) {
            return DEFAULT_PRICING;
        }
    }
    // Set default on first load
    localStorage.setItem('printpro_pricing', JSON.stringify(DEFAULT_PRICING));
    return DEFAULT_PRICING;
}

// --- STATE ---
let pricing = getPricing();
let selectedProduct = 'business-cards';
let selectedSize = null;
let selectedPaper = null;
let selectedFinishing = null;
let selectedTurnaround = null;
let currentQuantity = 500;

// --- DOM ELEMENTS ---
const productGrid = document.getElementById('productGrid');
const productSelector = document.getElementById('productSelector');
const sizeOptions = document.getElementById('sizeOptions');
const paperOptions = document.getElementById('paperOptions');
const finishingOptions = document.getElementById('finishingOptions');
const turnaroundOptions = document.getElementById('turnaroundOptions');
const quantitySlider = document.getElementById('quantitySlider');
const quantityDisplay = document.getElementById('quantityDisplay');
const qtyMin = document.getElementById('qtyMin');
const qtyMax = document.getElementById('qtyMax');
const totalPrice = document.getElementById('totalPrice');
const pricePerUnit = document.getElementById('pricePerUnit');
const heroPrice = document.getElementById('heroPrice');
const toast = document.getElementById('toast');
const toastMsg = document.getElementById('toastMsg');
const mobileMenuBtn = document.getElementById('mobileMenuBtn');
const mobileMenu = document.getElementById('mobileMenu');

// --- MOBILE MENU ---
mobileMenuBtn.addEventListener('click', () => {
    mobileMenu.classList.toggle('hidden');
});

// Close mobile menu when clicking a link
mobileMenu.querySelectorAll('a').forEach(link => {
    link.addEventListener('click', () => {
        mobileMenu.classList.add('hidden');
    });
});

// --- RENDER PRODUCT GRID ---
function renderProductGrid() {
    const products = pricing.products;
    productGrid.innerHTML = Object.entries(products).map(([key, product]) => `
        <div class="product-card bg-white rounded-xl border border-gray-100 shadow-sm overflow-hidden cursor-pointer group relative"
             onclick="selectProductAndScroll('${key}')">
            <div class="relative overflow-hidden h-48">
                <img src="${product.image}" alt="${product.name}" class="w-full h-full object-cover group-hover:scale-110 transition-transform duration-500">
                <div class="product-overlay absolute inset-0 bg-gradient-to-t from-black/60 to-transparent flex items-end p-4">
                    <span class="text-white font-bold text-sm">Get Quote →</span>
                </div>
            </div>
            <div class="p-4">
                <div class="flex items-center gap-2 mb-1">
                    <i data-lucide="${product.icon}" class="w-4 h-4 text-brand-500"></i>
                    <h3 class="font-semibold text-gray-900 text-sm">${product.name}</h3>
                </div>
                <p class="text-brand-600 font-bold">From $${product.basePrice.toFixed(2)}</p>
            </div>
        </div>
    `).join('');
    lucide.createIcons();
}

// --- RENDER PRODUCT SELECTOR PILLS ---
function renderProductSelector() {
    const products = pricing.products;
    productSelector.innerHTML = Object.entries(products).map(([key, product]) => `
        <button class="option-btn px-4 py-2.5 rounded-xl text-sm font-semibold transition-all border-2 flex items-center gap-2
            ${selectedProduct === key
                ? 'bg-brand-600 text-white border-brand-600 shadow-md active'
                : 'bg-white text-gray-600 border-gray-200 hover:border-brand-300 hover:text-brand-600'}"
            onclick="selectProduct('${key}')">
            <i data-lucide="${product.icon}" class="w-4 h-4"></i>
            ${product.name}
        </button>
    `).join('');
    lucide.createIcons();
}

// --- RENDER OPTION BUTTONS ---
function renderOptionButtons(containerId, options, selectedValue, onChange) {
    const container = document.getElementById(containerId);
    if (!container) return;
    container.innerHTML = options.map(opt => `
        <button class="option-btn px-3.5 py-2 rounded-lg text-sm font-medium transition-all border-2
            ${selectedValue === opt.id
                ? 'bg-brand-50 text-brand-700 border-brand-500 active shadow-sm'
                : 'bg-white text-gray-600 border-gray-200 hover:border-gray-300'}"
            onclick="${onChange}('${opt.id}')">
            ${opt.name}
            ${opt.price > 0 ? `<span class="text-xs text-gray-400 ml-1">+$${opt.price.toFixed(2)}</span>` : ''}
            ${opt.price < 0 ? `<span class="text-xs text-green-500 ml-1">-$${Math.abs(opt.price).toFixed(2)}</span>` : ''}
            ${opt.price === 0 && opt.id !== 'none' && opt.id !== 'standard' ? `<span class="text-xs text-gray-300 ml-1">Included</span>` : ''}
        </button>
    `).join('');
}

// --- SELECT PRODUCT ---
function selectProduct(productKey) {
    selectedProduct = productKey;
    const product = pricing.products[productKey];
    selectedSize = product.sizes[0].id;
    selectedPaper = product.paperTypes[0].id;
    selectedFinishing = product.finishing[0].id;
    selectedTurnaround = product.turnaround[0].id;
    currentQuantity = product.defaultQuantity;

    renderAllOptions();
    updateSlider();
    calculatePrice();
    renderProductSelector();
}

function selectProductAndScroll(productKey) {
    selectProduct(productKey);
    document.getElementById('calculator').scrollIntoView({ behavior: 'smooth' });
}

// --- UPDATE SLIDER ---
function updateSlider() {
    const product = pricing.products[selectedProduct];
    const tiers = product.quantityTiers;
    const minQty = tiers[0].min;
    const maxQty = tiers[tiers.length - 1].max;

    qtyMin.textContent = minQty;
    qtyMax.textContent = maxQty;

    // Map current quantity to slider position (0-100)
    const sliderPos = ((currentQuantity - minQty) / (maxQty - minQty)) * 100;
    quantitySlider.value = Math.round(sliderPos);
    quantityDisplay.textContent = currentQuantity;
}

// --- GET QUANTITY FROM SLIDER ---
function getQuantityFromSlider(sliderValue) {
    const product = pricing.products[selectedProduct];
    const tiers = product.quantityTiers;
    const minQty = tiers[0].min;
    const maxQty = tiers[tiers.length - 1].max;
    return Math.round(minQty + (sliderValue / 100) * (maxQty - minQty));
}

// --- GET TIER MULTIPLIER ---
function getTierMultiplier(quantity) {
    const product = pricing.products[selectedProduct];
    const tiers = product.quantityTiers;
    for (const tier of tiers) {
        if (quantity >= tier.min && quantity <= tier.max) {
            return tier.multiplier;
        }
    }
    // Fallback
    return tiers[tiers.length - 1].multiplier;
}

// --- CALCULATE PRICE ---
function calculatePrice() {
    const product = pricing.products[selectedProduct];

    const sizeObj = product.sizes.find(s => s.id === selectedSize) || product.sizes[0];
    const paperObj = product.paperTypes.find(p => p.id === selectedPaper) || product.paperTypes[0];
    const finishObj = product.finishing.find(f => f.id === selectedFinishing) || product.finishing[0];
    const turnaroundObj = product.turnaround.find(t => t.id === selectedTurnaround) || product.turnaround[0];
    const multiplier = getTierMultiplier(currentQuantity);

    const baseWithAddons = product.basePrice + sizeObj.price + paperObj.price + finishObj.price;
    const subtotal = baseWithAddons * multiplier * (currentQuantity / 100);
    const total = subtotal + turnaroundObj.price;

    const formattedTotal = total.toFixed(2);
    const perUnit = total / currentQuantity;

    // Animate price
    totalPrice.classList.remove('price-pulse');
    void totalPrice.offsetWidth;
    totalPrice.classList.add('price-pulse');
    totalPrice.textContent = `$${formattedTotal}`;
    pricePerUnit.textContent = `$${perUnit.toFixed(3)} / unit`;

    // Update hero price for business cards
    if (selectedProduct === 'business-cards' && currentQuantity === 500 &&
        selectedSize === '3.5x2' && selectedPaper === '14pt-gloss' &&
        selectedFinishing === 'none' && selectedTurnaround === 'standard') {
        heroPrice.textContent = formattedTotal;
    }
}

// --- RENDER ALL OPTIONS ---
function renderAllOptions() {
    const product = pricing.products[selectedProduct];

    renderOptionButtons('sizeOptions', product.sizes, selectedSize,
        (val) => { selectedSize = val; renderAllOptions(); calculatePrice(); });

    renderOptionButtons('paperOptions', product.paperTypes, selectedPaper,
        (val) => { selectedPaper = val; renderAllOptions(); calculatePrice(); });

    renderOptionButtons('finishingOptions', product.finishing, selectedFinishing,
        (val) => { selectedFinishing = val; renderAllOptions(); calculatePrice(); });

    renderOptionButtons('turnaroundOptions', product.turnaround, selectedTurnaround,
        (val) => { selectedTurnaround = val; renderAllOptions(); calculatePrice(); });

    lucide.createIcons();
}

// --- EVENT LISTENERS ---
quantitySlider.addEventListener('input', () => {
    currentQuantity = getQuantityFromSlider(parseInt(quantitySlider.value));
    quantityDisplay.textContent = currentQuantity;
    calculatePrice();
});

// --- TOAST ---
function showToast(message) {
    toastMsg.textContent = message;
    toast.classList.remove('hidden');
    void toast.offsetWidth;
    toast.classList.add('toast');
    setTimeout(() => {
        toast.classList.add('hidden');
        toast.classList.remove('toast');
    }, 3000);
}

// --- LISTEN FOR PRICING CHANGES FROM ADMIN ---
window.addEventListener('storage', (e) => {
    if (e.key === 'printpro_pricing') {
        pricing = getPricing();
        selectProduct(selectedProduct);
        renderProductGrid();
        renderProductSelector();
        calculatePrice();
        showToast('Pricing updated from admin panel! 🔄');
    }
});

// Also listen for a custom event (for same-tab updates)
window.addEventListener('pricingUpdated', () => {
    pricing = getPricing();
    selectProduct(selectedProduct);
    renderProductGrid();
    renderProductSelector();
    calculatePrice();
});

// --- INIT ---
function init() {
    renderProductGrid();
    renderProductSelector();
    selectProduct('business-cards');
    updateSlider();
    calculatePrice();
}

// Run on load
document.addEventListener('DOMContentLoaded', init);

// Expose functions to global scope for onclick handlers
window.selectProduct = selectProduct;
window.selectProductAndScroll = selectProductAndScroll;
window.showToast = showToast;