import { Builder, By, until, WebDriver, WebElement } from 'selenium-webdriver';
import * as chromedriver from 'chromedriver';
import chrome, { ServiceBuilder } from 'selenium-webdriver/chrome';
import * as fs from 'fs';
import * as path from 'path';
import { WebDriverUtils } from './utils';
import { ContactInfo } from './types';



export async function execSearch(driver: WebDriver, city: string): Promise<boolean> {
    try {
        // Find the search input field
        const searchSelector = 'input[name="q"][placeholder="Places to go, things to do, hotels..."]';
        await WebDriverUtils.waitForElement(driver, searchSelector, 10000);
        console.log("Search box found");
        const searchInput = await driver.findElement(By.css(searchSelector));

        // Clear any existing text and enter the city name
        await searchInput.clear();
        await searchInput.sendKeys(city);

        // Submit the search (press Enter)
        await WebDriverUtils.wait(driver);
        await searchInput.sendKeys('\uE007'); // Unicode for Enter key
        await WebDriverUtils.wait(driver); // Wait 5 seconds before next city

        return true;
    } catch (e) {
        return false;
    }
}

export async function clickSeeAll(driver: WebDriver): Promise<boolean> {
    try {
        const seeAllElement = await driver.wait(
            until.elementLocated(By.xpath("//span[contains(text(), 'See all')]")),
            5000  // Waits up to 5 seconds
        );

        await driver.wait(until.elementIsVisible(seeAllElement), 5000);
        await driver.wait(until.elementIsEnabled(seeAllElement), 5000);

        await seeAllElement.click();
        return true;  // Click succeeded
    } catch (error) {
        // Element not found or not clickable within the timeout
        return false;
    }
}

export async function getSeeAllUrl(driver: WebDriver): Promise<string> {
    const xpath = `//h3[normalize-space(.)='Things to do']/ancestor::div[1]//a[starts-with(@href, '/Attractions')]`;

    try {
        const anchor = await driver.wait(until.elementLocated(By.xpath(xpath)), 5000);
        const url = await anchor.getAttribute('href');
        console.log('Found Attractions URL:', url);
        return url;
    } catch (err) {
        console.warn('Could not find the Attractions link:', err);
    }

    return "";
}

export async function gotoHome(driver: WebDriver): Promise<boolean> {
    try {
        // Click on the Tripadvisor logo before searching for the city
        const logoSelector = 'img.XpHHt[alt="Tripadvisor"]';
        const logo = await driver.findElement(By.css(logoSelector));
        console.log('Found Tripadvisor logo. Clicking it...');
        await logo.click();

        return true;
    } catch (error) {
        // Element not found or not clickable within the timeout
        return false;
    }
}

export async function clickSeeAllAttractions(driver: WebDriver): Promise<boolean> {
    const xpath = `//h3[starts-with(normalize-space(.), 'Things to do')]/parent::*[1]//a[starts-with(@href, '/Attractions') and .//span[normalize-space(.)='See all']]`;

    try {
        const anchorElement = await driver.wait(until.elementLocated(By.xpath(xpath)), 5000);

        await driver.wait(until.elementIsVisible(anchorElement), 5000);
        await driver.wait(until.elementIsEnabled(anchorElement), 5000);

        await anchorElement.click();

        return true;
    } catch (error) {
        console.warn('Element not found or not clickable.', error);
        return false;
    }
}

export async function getSeeAllAttractionsUrl(driver: WebDriver): Promise<string | null> {
    const xpath = `//h3[starts-with(normalize-space(.), 'Top Attractions in')]/parent::*[1]//a[starts-with(@href, '/Attractions') and .//span[normalize-space(.)='See all']]`;

    try {
        const anchorElement = await driver.wait(until.elementLocated(By.xpath(xpath)), 5000);

        await driver.wait(until.elementIsVisible(anchorElement), 5000);

        const href = await anchorElement.getAttribute('href');
        return href;
    } catch (error) {
        console.warn('Element not found or href not retrievable.', error);
        return null;
    }
}

export async function clickMuseumsLink(driver: WebDriver): Promise<boolean> {
    const xpath = `//a[.//*[normalize-space(.)='Museums']]`;

    try {
        const museumsLink = await driver.wait(until.elementLocated(By.xpath(xpath)), 5000);
        await driver.wait(until.elementIsVisible(museumsLink), 5000);
        await driver.wait(until.elementIsEnabled(museumsLink), 5000);

        await museumsLink.click();
        return true;
    } catch (error) {
        console.warn('Museums link not found or not clickable.', error);
        return false;
    }
}

export async function clickTourismLink(driver: WebDriver): Promise<boolean> {
    const xpath = `//a[starts-with(@href, '/Tourism')]`;

    try {
        const tourismLink = await driver.wait(
            until.elementLocated(By.xpath(xpath)),
            5000
        );
        await driver.wait(until.elementIsVisible(tourismLink), 5000);
        await driver.wait(until.elementIsEnabled(tourismLink), 5000);

        await tourismLink.click();

        return true;
    } catch (error) {
        console.warn('Tourism link not found or not clickable.', error);
        return false;
    }
}

export async function getMusiums(driver: WebDriver): Promise<WebElement[]> {
    const xpath = `//div//section[.//a[starts-with(@href, '/Attraction')] and .//h3]//a[starts-with(@href, '/Attraction') and .//img]`;

    try {
        const links: WebElement[] = await driver.findElements(By.xpath(xpath));
        return links;
    } catch (error) {
        console.warn('Error clicking attraction links:', error);
        return [];
    }
}

export async function getWebsiteAndEmail(driver: WebDriver): Promise<ContactInfo> {
    const result: ContactInfo = { websiteUrl: null, email: null };

    // XPath to find URL (starting with 'http' but not containing 'tripadvisor')
    const urlXPath = `//a[starts-with(@href, 'http') and not(contains(@href, 'tripadvisor'))]`;

    // XPath to find Email (starting with 'mailto:')
    const emailXPath = `//a[starts-with(@href, 'mailto:')]`;

    try {
        const urlElement = await driver.findElement(By.xpath(urlXPath));
        result.websiteUrl = await urlElement.getAttribute('href');
    } catch {
        console.warn('Website URL not found.');
    }

    try {
        const emailElement = await driver.findElement(By.xpath(emailXPath));
        const emailHref = await emailElement.getAttribute('href');
        result.email = emailHref.replace('mailto:', '').trim();
    } catch {
        console.warn('Email address not found.');
    }

    return result;
}

export async function clickPagination(driver: WebDriver, pageNumber: number): Promise<boolean> {
    const xpath = `//a[@aria-label='${pageNumber}']`;

    try {
        const pageElement = await driver.wait(until.elementLocated(By.xpath(xpath)), 5000);
        await driver.wait(until.elementIsVisible(pageElement), 5000);
        await driver.wait(until.elementIsEnabled(pageElement), 5000);

        await pageElement.click();
        return true;
    } catch (error) {
        console.warn(`Error clicking page number ${pageNumber}:`, error);
        return false;
    }
}

export async function closeAllTabsExceptFirst(driver: WebDriver): Promise<void> {
    const windowHandles = await driver.getAllWindowHandles();

    if (windowHandles.length <= 1) {
        console.log('Only one tab open; nothing to close.');
        return;
    }

    const originalHandle = windowHandles[0];

    for (const handle of windowHandles) {
        if (handle !== originalHandle) {
            await driver.switchTo().window(handle);
            await driver.close();
            console.log(`Closed tab: ${handle}`);
        }
    }

    await driver.switchTo().window(originalHandle);
    console.log(`Switched back to original tab: ${originalHandle}`);
}