import sys
import random
import zipfile
import webp
from io import BytesIO
from PyQt5.QtCore import QTimer
from PyQt5 import QtWidgets, QtGui, QtCore
from PIL import Image, ImageTk
from PIL import ImageSequence
import tempfile



class Example(QtWidgets.QMainWindow):

    def __init__(self):
        super().__init__()

        self.initUI()

    def initUI(self):
        self.label = QtWidgets.QLabel(self)
        self.setCentralWidget(self.label)
        self.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint | QtCore.Qt.FramelessWindowHint)

        self.zf = zipfile.ZipFile("gifs.zip", "r")
        self.gif_files = self.zf.namelist()

        self.timer = QTimer(self)
        self.timer.timeout.connect(self.show_random_gif)
        self.timer.start(1000)

        self.show_random_gif()

    def show_random_gif(self):
        if self.gif_files:
            gif_file = random.choice(self.gif_files)
            gif_bytes = self.zf.read(gif_file)
            with tempfile.NamedTemporaryFile(suffix='.gif', delete=False) as f:
                f.write(gif_bytes)
                file_name = f.name

            gif = Image.open(BytesIO(gif_bytes))

            width, height = gif.width, gif.height

            screen_width = QtWidgets.QDesktopWidget().screenGeometry().width()
            screen_height = QtWidgets.QDesktopWidget().screenGeometry().height()

            self.setGeometry(screen_width - width, screen_height - height, width, height)

            movie = QtGui.QMovie(file_name, parent=self)
            movie.setCacheMode(QtGui.QMovie.CacheAll)
            self.label.setMovie(movie)
            transparency = gif.info.get("transparency")
            if transparency is not None:
                self.label.clearMask()
                self.label.setMask(QtGui.QBitmap(width, height))
                self.label.clearMask()

            movie.start()
        else:
            self.label.clear()

        self.timer.stop()
        QTimer.singleShot(1000, self.timer.start)

    def setBackground(self, background_file):
        background = QtGui.QPixmap(background_file)
        palette = self.label.palette()
        palette.setBrush(self.label.backgroundRole(), QtGui.QBrush(background))
        self.label.setPalette(palette)
        self.label.setAutoFillBackground(True)

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    window = Example()
    window.show()
    sys.exit(app.exec_())