<?php
declare(strict_types=1);

function site_config(string $lang = 'en'): array
{
    $whatsAppNumber = '60123456789'; 
    $whatsAppMessage = $lang === 'zh'
        ? '你好，我想咨询你们的高端美白护肤方案。'
        : 'Hello, I would like to inquire about your luxury whitening skincare solutions.';

    $nav = [
        'en' => [
            ['label' => 'Home', 'url' => '/index.php'],
            ['label' => 'Products', 'url' => '/products.php'],
            ['label' => 'Science', 'url' => '/technology.php'],
            ['label' => 'About', 'url' => '/about.php'],
            ['label' => 'Contact', 'url' => '/contact.php'],
        ],
        'zh' => [
            ['label' => '首页', 'url' => '/zh/index.php'],
            ['label' => '产品中心', 'url' => '/zh/products.php'],
            ['label' => '核心科技', 'url' => '/zh/technology.php'],
            ['label' => '品牌故事', 'url' => '/zh/about.php'],
            ['label' => '联系我们', 'url' => '/zh/contact.php'],
        ]
    ];

    if ($lang === 'zh') {
        return [
            'brand' => 'Lumière',
            'tagline' => '高端美白 · 科技护肤 · 奢享璀璨',
            'whatsapp_number' => $whatsAppNumber,
            'whatsapp_message' => $whatsAppMessage,
            'nav' => $nav['zh'],
        ];
    }

    return [
        'brand' => 'Lumière',
        'tagline' => 'Luxury Whitening · Advanced Skincare Science',
        'whatsapp_number' => $whatsAppNumber,
        'whatsapp_message' => $whatsAppMessage,
        'nav' => $nav['en'],
    ];
}

function get_products(string $lang = 'en'): array
{
    if ($lang === 'zh') {
        return [
            [
                'id' => 1,
                'name' => '璀璨焕亮精华液',
                'description' => '深层渗透，激活肌肤底层的透亮光感。',
                'image' => '/assets/images/product-street.svg',
            ],
            [
                'id' => 2,
                'name' => '奢宠美白日霜',
                'description' => '轻盈丝滑，为肌肤提供全天候的修护与滋润。',
                'image' => '/assets/images/product-highbay.svg',
            ],
            [
                'id' => 3,
                'name' => '净透舒缓修护膜',
                'description' => '舒缓镇静，赋予肌肤纯净无瑕的通透感。',
                'image' => '/assets/images/product-tri.svg',
            ],
        ];
    }

    return [
        [
            'id' => 1,
            'name' => 'Luminous Radiance Serum',
            'description' => 'Deep penetration to activate the underlying light of your skin.',
            'image' => '/assets/images/product-street.svg',
        ],
        [
            'id' => 2,
            'name' => 'Luxury Whitening Day Cream',
            'description' => 'Light and silky, providing all-day repair and hydration.',
            'image' => '/assets/images/product-highbay.svg',
        ],
        [
            'id' => 3,
            'name' => 'Pure Clarifying Mask',
            'description' => 'Soothing and calming, bestowing a pure, flawless clarity.',
            'image' => '/assets/images/product-tri.svg',
        ],
    ];
}