// digikala.js
const fetch = require("node-fetch");

async function searchDigikala(query, limit = 12) {
    if (!query) return [];

    try {
        const encodedQuery = encodeURIComponent(query);
        const url = `https://api.digikala.com/v3/search/?q=${encodedQuery}`;

        const headers = {
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36",
            "Accept": "application/json",
            "Accept-Language": "fa-IR,fa;q=0.9,en-US;q=0.8,en;q=0.7",
            "Referer": `https://www.digikala.com/search/?q=${encodedQuery}`,
            "Origin": "https://www.digikala.com"
        };

        const response = await fetch(url, { headers });

        if (!response.ok) {
            console.error(`❌ Digikala API error: ${response.status} ${response.statusText}`);
            return [];
        }

        const data = await response.json();

        // 🔥 مسیر واقعی بر اساس داده شما: data.widgets[0].data.products
        const products = data?.widgets?.[0]?.data?.products || [];

        if (!Array.isArray(products) || products.length === 0) {
            console.log("⚠️ No products found in Digikala API response (widgets[0].data.products is empty or not array)");
            return [];
        }

        return products.slice(0, limit).map(item => {
            const title = item.title_fa || "بدون عنوان";
            const price = item.default_variant?.price?.selling_price || null;
            const formattedPrice = price !== null
                ? new Intl.NumberFormat('fa-IR').format(price) + " تومان"
                : "—";

            // تصویر: url یک آرایه است → اولین عنصر
            let image = "https://via.placeholder.com/150";
            if (Array.isArray(item.images?.main?.url) && item.images.main.url.length > 0) {
                image = item.images.main.url[0].replace(/\s+/g, '');
            }

            const link = item.url?.uri
                ? `https://www.digikala.com${item.url.uri}`
                : `https://www.digikala.com/product/dkp-${item.id}/`;

            return {
                id: item.id,
                title,
                price: formattedPrice,
                image,
                link,
                description: ""
            };
        });

    } catch (err) {
        console.error("🔴 Digikala search error:", err.message);
        return [];
    }
}

// برای جلوگیری از خطا در server.cjs
async function getProductById() {
    return null;
}

module.exports = { searchDigikala, getProductById };