#!/usr/bin/env node
/**
 * test_verify.mjs - Extension badge count verification test using Selenium WebDriver
 *
 * Verifies Rentgen's core functionality: counting third-party domains.
 * Tests two scenarios:
 * 1. Site without third-party domains (news.ycombinator.com) → badge = 0
 * 2. Site with third-party domains (pudelek.pl) → badge > 0
 */

import { Builder, By, until } from 'selenium-webdriver';
import firefox from 'selenium-webdriver/firefox.js';
import { readFileSync } from 'fs';
import { fileURLToPath } from 'url';
import { dirname, join } from 'path';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

const isTTY = process.stdout.isTTY;

function red(text) {
    return isTTY ? `\x1b[91m${text}\x1b[0m` : text;
}

async function testBadgeCount() {
    let driver = null;

    try {
        // Load test library
        const testLibPath = join(__dirname, 'test-lib.js');
        const testLib = readFileSync(testLibPath, 'utf-8');

        // Find extension path (project root contains manifest.json and built files in lib/)
        const extensionPath = join(__dirname, '..');

        console.log('  Launching Firefox with extension...');

        // Set up Firefox options
        const options = new firefox.Options();

        // Set headless mode based on environment
        if (process.env.HEADLESS !== 'false') {
            options.addArguments('-headless');
        }

        // Create WebDriver instance
        driver = await new Builder()
            .forBrowser('firefox')
            .setFirefoxOptions(options)
            .build();

        // Install the extension from the dist directory
        // Firefox WebDriver allows installing unpacked extensions
        console.log('  Installing extension...');
        await driver.installAddon(extensionPath, true); // true = temporary install

        const results = {};

        // Test 1: Site without third-party domains
        console.log('  Testing news.ycombinator.com (expected: 0 third-party domains)...');
        await driver.get('https://news.ycombinator.com');

        // Wait for page to load
        await driver.sleep(5000);

        const badgeCountHN = await driver.executeAsyncScript(`
            const testLibCode = arguments[0];
            const callback = arguments[1];

            eval(testLibCode);
            testBadgeCount().then(callback).catch(err => callback(null));
        `, testLib);

        results.hn = badgeCountHN;
        console.log(`    → Badge count: ${badgeCountHN}`);

        // Test 2: Site with third-party domains
        console.log('  Testing pudelek.pl (expected: >0 third-party domains)...');
        await driver.get('https://pudelek.pl');

        // Wait longer for tracking detection
        await driver.sleep(10000);

        const badgeCountPudelek = await driver.executeAsyncScript(`
            const testLibCode = arguments[0];
            const callback = arguments[1];

            eval(testLibCode);
            testBadgeCount().then(callback).catch(err => callback(null));
        `, testLib);

        results.pudelek = badgeCountPudelek;
        console.log(`    → Badge count: ${badgeCountPudelek}`);

        await driver.quit();

        // Verify results
        if (badgeCountHN === null || badgeCountPudelek === null) {
            return { success: false, error: 'Test timed out or failed to get badge count' };
        }

        if (badgeCountHN === 0 && badgeCountPudelek > 0) {
            return { success: true, results };
        } else {
            return {
                success: false,
                error: `Unexpected results: HN=${badgeCountHN} (expected 0), Pudelek=${badgeCountPudelek} (expected >0)`
            };
        }

    } catch (error) {
        if (driver) {
            await driver.quit();
        }
        return { success: false, error: error.message };
    }
}

async function main() {
    console.log('Starting Rentgen badge count verification test...');
    console.log('');

    const result = await testBadgeCount();

    console.log('');
    if (!result.success) {
        console.log(red(`FAIL: ${result.error}`));
        process.exit(1);
    }

    console.log('PASS: Badge count test succeeded!');
    console.log(`  - news.ycombinator.com: ${result.results.hn} third-party domains`);
    console.log(`  - pudelek.pl: ${result.results.pudelek} third-party domains`);
    process.exit(0);
}

// Handle signals
process.on('SIGINT', () => process.exit(130));
process.on('SIGTERM', () => process.exit(143));

main().catch(error => {
    console.error(red(`ERROR: ${error.message}`));
    process.exit(1);
});