import { test, expect } from '@playwright/test';

// This test attaches to the Chrome DevTools Protocol to capture low-level
// network events (including those from service workers). Run this with the
// real Chrome binary (channel: 'chrome') to reproduce the exact browser
// behavior that shows the PNA prompt.

test('CDP: detect private/local network requests and PNA preflights', async ({ page }) => {
    const privateRequests: Array<any> = [];

    function isPrivateHostname(hostname: string) {
        if (!hostname) return false;
        if (hostname === 'localhost' || hostname.endsWith('.localhost')) return true;
        if (/^(127)\.|^(10)\.|^(192\.168)\.|^172\.(1[6-9]|2[0-9]|3[0-1])\./.test(hostname)) return true;
        return false;
    }

    // Create a CDP session for the page to listen to Network events
    const client = await page.context().newCDPSession(page);
    await client.send('Network.enable');

    client.on('Network.requestWillBeSent', (params) => {
        try {
            const url = params.request.url;
            const hostname = new URL(url).hostname;
            const headers = params.request.headers || {};
            const pna = headers['access-control-request-private-network'] === 'true' || headers['Access-Control-Request-Private-Network'] === 'true';

            if (isPrivateHostname(hostname) || pna) {
                privateRequests.push({
                    url,
                    method: params.request.method,
                    initiator: params.initiator?.type,
                    pnaPreflight: pna,
                    headers
                });
            }
        } catch (e) {}
    });

    // Also capture console messages to surface the same errors you see in Chrome.
    const consoleMessages: string[] = [];
    page.on('console', (msg) => {
        consoleMessages.push(`${msg.type()}: ${msg.text()}`);
    });

    // Navigate to the site that triggers the behavior in your environment.
    await page.goto('http://demo.localhost:5173/');
    await page.waitForLoadState('networkidle');

    if (privateRequests.length > 0) {
        console.error('CDP detected private/local requests or PNA preflights:');
        for (const r of privateRequests) console.error(JSON.stringify(r, null, 2));
    }

    if (consoleMessages.length) {
        console.log('Captured console messages:');
        consoleMessages.forEach((m) => console.log(m));
    }

    expect(privateRequests.length, 'No private/local network requests or PNA preflights should be made').toBe(0);
});