// qkf/selenium/driverFactory.js
const { Builder } = require("selenium-webdriver");

function envBool(v, def = false) {
    if (v == null) return def;
    return String(v).toLowerCase() === "true" || String(v) === "1";
}

/**
 * Driver factory:
 * - Local: uses selenium-webdriver Builder().forBrowser()
 * - Remote: if SELENIUM_REMOTE_URL is set, uses .usingServer(url)
 *
 * Env:
 *  - QKF_BROWSER=chrome|firefox|MicrosoftEdge
 *  - QKF_HEADLESS=true|false
 *  - SELENIUM_REMOTE_URL=http://localhost:4444/wd/hub (optional)
 */
async function createDriver() {
    const browser = process.env.QKF_BROWSER || "chrome";
    const headless = envBool(process.env.QKF_HEADLESS, false);
    const remoteUrl = process.env.SELENIUM_REMOTE_URL || "";

    const builder = new Builder().forBrowser(browser);

    if (remoteUrl) builder.usingServer(remoteUrl);

    // Headless options (best-effort; safe if missing)
    try {
        if (browser.toLowerCase() === "chrome") {
            const chrome = require("selenium-webdriver/chrome");
            const opts = new chrome.Options();
            if (headless) opts.addArguments("--headless=new");
            opts.addArguments("--window-size=1440,900");
            builder.setChromeOptions(opts);
        } else if (browser.toLowerCase() === "firefox") {
            const firefox = require("selenium-webdriver/firefox");
            const opts = new firefox.Options();
            if (headless) opts.addArguments("-headless");
            builder.setFirefoxOptions(opts);
        } else if (browser.toLowerCase().includes("edge")) {
            const edge = require("selenium-webdriver/edge");
            const opts = new edge.Options();
            if (headless) opts.addArguments("--headless=new");
            opts.addArguments("--window-size=1440,900");
            builder.setEdgeOptions(opts);
        }
    } catch {
        // If browser-specific options modules aren't available, continue without them.
    }

    const driver = await builder.build();

    // Default timeouts (adjust as needed)
    await driver.manage().setTimeouts({
        implicit: 0,
        pageLoad: 60000,
        script: 30000
    });

    return driver;
}

module.exports = { createDriver };