# Copyright (C) 2010-2012 Cuckoo Sandbox Developers.
# This file is part of Cuckoo Sandbox - http://www.cuckoosandbox.org
# See the file 'docs/LICENSE' for copying permission.

import os
import time
import logging
from threading import Thread

from lib.common.paths import PATHS
from lib.api.screenshot import Screenshot

log = logging.getLogger(__name__)
SHOT_DELAY = 1

class Screenshots(Thread):
    """Take screenshots."""
    
    def __init__(self, save_path = PATHS["shots"]):
        """@param save_path: where screenshots are saved."""
        Thread.__init__(self)
        self.save_path = save_path
        self.do_run = True

    def stop(self):
        """Stop screenshotting."""
        self.do_run = False

    def run(self):
        """Run screenshotting.
        @return: operation status.
        """
        if not Screenshot().have_pil():
            log.warning("Python Image Library is not installed, screenshots are disabled")
            return False

        img_counter = 0
        img_last = None

        while self.do_run:
            img_current = Screenshot().take()

            #if img_last:
            #    if Screenshot().equal(img_last, img_current):
            #        time.sleep(SHOT_DELAY)
            #        continue

            img_counter += 1
            save_at = os.path.join(self.save_path, "%s.jpg" % str(img_counter).rjust(4, '0'))
            img_current.save(save_at)

            img_last = img_current
            time.sleep(SHOT_DELAY)

        return True
.