import random
import time
from selenium import webdriver

headless = False
chromeProfilePath = r"/home/.config/google-chrome/linkedin_profile"

def is_scrollable(element):
    """Controlla se un elemento è scrollabile."""
    scroll_height = element.get_attribute("scrollHeight")
    client_height = element.get_attribute("clientHeight")
    return int(scroll_height) > int(client_height)

def scroll_slow(driver, scrollable_element, start=0, end=3600, step=100, reverse=False):
    if reverse:
        start, end = end, start
        step = -step

    if step == 0:
        raise ValueError("Step cannot be zero.")

    # Script di scrolling che utilizza scrollTop
    script_scroll_to = "arguments[0].scrollTop = arguments[1];"

    try:
        if scrollable_element.is_displayed():
            if not is_scrollable(scrollable_element):
                print("The element is not scrollable.")
                return
            if (step > 0 and start >= end) or (step < 0 and start <= end):
                print("No scrolling will occur due to incorrect start/end values.")
                return        
            for position in range(start, end, step):
                try:
                    driver.execute_script(script_scroll_to, scrollable_element, position)
                except Exception as e:
                    print(f"Error during scrolling: {e}")
                time.sleep(random.uniform(1.0, 2.6))
            driver.execute_script(script_scroll_to, scrollable_element, end)
            time.sleep(1)
        else:
            print("The element is not visible.")
    except Exception as e:
        print(f"Exception occurred: {e}")

def chromeBrowserOptions():
    options = webdriver.ChromeOptions()
    options.add_argument('--no-sandbox')
    options.add_argument("--ignore-certificate-errors")
    options.add_argument("--disable-extensions")
    options.add_argument('--disable-gpu')
    options.add_argument('--disable-dev-shm-usage')
    options.add_argument('--remote-debugging-port=9222')
    if(headless):
        options.add_argument("--headless")
    options.add_argument("--start-maximized")
    options.add_argument("--disable-blink-features")
    options.add_argument("--disable-blink-features=AutomationControlled")
    options.add_experimental_option('useAutomationExtension', False)
    options.add_experimental_option("excludeSwitches", ["enable-automation"])
    if(len(chromeProfilePath)>0):
        initialPath = chromeProfilePath[0:chromeProfilePath.rfind("/")]
        profileDir = chromeProfilePath[chromeProfilePath.rfind("/")+1:]
        options.add_argument('--user-data-dir=' +initialPath)
        options.add_argument("--profile-directory=" +profileDir)
    else:
        options.add_argument("--incognito")
    return options