'''
This script simulates a double-click at the given mouse cursor position.
'''

import Quartz
from time import sleep

def post_mouse_event(type, pos, click_state):
    event = Quartz.CGEventCreateMouseEvent(
        None, type, pos, Quartz.kCGMouseButtonLeft
    )
    Quartz.CGEventSetIntegerValueField(event, Quartz.kCGMouseEventClickState, click_state)
    Quartz.CGEventPost(Quartz.kCGHIDEventTap, event)

def double_click (x, y):
    pos = None
    if x is None or y is None:
        # Get current mouse position if no coordinates are provided
        loc = Quartz.CGEventGetLocation(Quartz.CGEventCreate(None))
        pos = (loc.x, loc.y)
    else:
        # Use provided coordinates
        pos = (x, y)

    # First click
    post_mouse_event(Quartz.kCGEventLeftMouseDown, pos, 1)
    post_mouse_event(Quartz.kCGEventLeftMouseUp, pos, 1)

    sleep(0.05)  # Short delay within double-click threshold

    # Second click
    post_mouse_event(Quartz.kCGEventLeftMouseDown, pos, 2)
    post_mouse_event(Quartz.kCGEventLeftMouseUp, pos, 2)


if __name__ == "__main__":
    print('test: double clicking at cursor position in 3 seconds...')
    sleep(3)
    double_click()