import logging
import os

import cv2


def convert_video(images_path, output_path, width, height, fps, stilltime):
    """
    Convert images in output_path into a mp4 file usine OpenCV.
    :param images_path:
    :param output_path:
    :param images_path:
    :param width:
    :param height:
    :return:
    """

    # define a frame array
    frame_array = []

    # list all files in images_path
    files = [f for f in os.listdir(images_path) if os.path.isfile(os.path.join(images_path, f))]
    # sort the files
    files.sort()

    # create a video writer object

    for i in range(len(files)):
        file = os.path.join(images_path, files[i])
        logging.log(logging.INFO, f'Converting {file} to mp4')
        img = cv2.imread(file)
        for j in range(fps * stilltime):
            frame_array.append(img)

    fourcc = cv2.VideoWriter_fourcc(*'mp4v')
    video_writer = cv2.VideoWriter(output_path,
                                   fourcc,
                                   fps,
                                   (width, height))

    for i in range(len(frame_array)):
        # writing to a image array
        video_writer.write(frame_array[i])

    video_writer.release()
    logging.log(logging.INFO, f'Finished converting {output_path}')