"""
To install:
    # python requirements
    $ pip install click selenium

    # for headless chrome
    $ brew install chromedriver

To use:
    $ python capture.py https://revsys.com revsys.png

"""

import click
import time

from selenium import webdriver
from selenium.webdriver.chrome.options import Options


@click.command()
@click.option('--delay', default=1, help='Delay before capturing screenshot')
@click.option('--headless/--no-headless', default=True, help='Run in headless mode')
@click.option('--height', default=512, help='Browser height')
@click.option('--width', default=1024, help='Browser width')
@click.option('--zoom', default=100, help='Zoom level')
@click.argument('url')
@click.argument('filename')
def capture(url, filename, delay, headless, height, width, zoom):
    chrome_options = Options()

    if headless:
        chrome_options.add_argument('--headless')

    chrome_options.add_argument(f'window-size={width}x{height}')

    driver = webdriver.Chrome(
        '/usr/local/bin/chromedriver', chrome_options=chrome_options
    )

    driver.get(url)

    if zoom != 100:
        driver.execute_script(f"document.body.style.zoom='{zoom}%'")

    time.sleep(delay)

    driver.save_screenshot(filename)

    driver.quit()


if __name__ == '__main__':
    capture()