import express from "express";
import { chromium } from "playwright";

const app = express();
const PORT = 7860;

app.get("/", (req, res) => {
    res.json({
        status: "running",
        usage: "/search?q=openai"
    });
});

app.get("/search", async (req, res) => {

    const query = req.query.q;

    if (!query) {
        return res.status(400).json({
            error: "Missing parameter q"
        });
    }

    const browser = await chromium.launch({
        headless: true,
        args: [
            "--no-sandbox",
            "--disable-blink-features=AutomationControlled"
        ]
    });

    const context = await browser.newContext({
        userAgent:
            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/137.0.0.0 Safari/537.36",
        viewport: {
            width: 1366,
            height: 768
        }
    });

    const page = await context.newPage();

    try {

        await page.goto(
            `https://www.google.com/search?q=${encodeURIComponent(query)}&hl=en`,
            {
                waitUntil: "networkidle",
                timeout: 30000
            }
        );

        const title = await page.title();

        if (
            title.toLowerCase().includes("sorry") ||
            title.toLowerCase().includes("unusual")
        ) {

            await browser.close();

            return res.json({
                error: "Google blocked this request",
                pageTitle: title
            });

        }

        const results = await page.evaluate(() => {

            const data = [];

            document.querySelectorAll("a").forEach(a => {

                const h3 = a.querySelector("h3");

                if (!h3) return;

                if (!a.href.startsWith("http")) return;

                data.push({
                    title: h3.innerText,
                    url: a.href
                });

            });

            return data.slice(0, 10);

        });

        await browser.close();

        res.json({
            query,
            count: results.length,
            results
        });

    } catch (err) {

        await browser.close();

        res.status(500).json({
            error: err.message
        });

    }

});

app.listen(PORT, () => {
    console.log("Running on port", PORT);
});