import pyautogui
import threading
import time, io, base64
import sys
from objects.inputs import MouseInput, KeyboardInput, ButtonType
from PIL import ImageGrab  # type: ignore

def take_screenshot() -> bytes:
    """Take a screenshot of the current screen and return it as bytes."""
    screenshot = ImageGrab.grab()
    buf = io.BytesIO()
    screenshot.save(buf, format='PNG')
    return buf.getvalue()

def screenshot_to_base64(screenshot: bytes) -> str:
    """Convert screenshot bytes to a base64 encoded string."""
    return base64.b64encode(screenshot).decode('utf-8')

def show_click_indicator(x: int, y: int, duration: float = 2.0, size: int = 50) -> None:
    """Display a red circle at (x, y) for the given duration, can be clicked through."""
    pass

def press_mouse(mouse_input: MouseInput) -> None:
    """Presses mouse buttons at the given position."""
    x, y = mouse_input.x, mouse_input.y
    button = mouse_input.click_type
    if button == "left":
        pyautogui.click(x, y, button='left')
    elif button == "double_left":
        pyautogui.doubleClick(x, y)
    elif button == "right":
        pyautogui.click(x, y, button='right')
    elif button == "middle":
        pyautogui.click(x, y, button='middle')
    # Show red circle indicator at click position for 2 seconds
    threading.Thread(target=show_click_indicator, args=(x, y), daemon=True).start()

def press_keyboard(keyboard_input: KeyboardInput) -> None:
    """Types the given sequence of keys."""
    text = keyboard_input.text
    if text:
        pyautogui.typewrite(text)
    if keyboard_input.press_enter:
        pyautogui.press('enter')

def wait(duration: float) -> None:
    """Waits for the specified duration in seconds."""
    time.sleep(duration)

def reprompt(nextsteps: str, processor) -> None:
    """Re-execute GPT and take a new screenshot."""
    scr = screenshot_to_base64(take_screenshot())
    return processor.process(nextsteps, img_data=scr)

def _execute(name, args, processor):
    if name == "click_button":
        press_mouse(MouseInput(**args))
    elif name == "type_text":
        press_keyboard(KeyboardInput(**args))
    elif name == "wait":
        wait(**args)
    elif name == "reprompt":
        reprompt(**args, processor=processor)