import os
import shutil

def run_command(command, mode="silent"):
    if mode == "debug":
        return os.system(command)
    return os.popen(command).read()

def detect_fps(input_path):
    output = os.popen(f"ffprobe -v error -select_streams v -of default=noprint_wrappers=1:nokey=1 -show_entries stream=r_frame_rate {input_path}").read()
    if "/" in output:
        try:
            return int(output.split("/")[0]) // int(output.split("/")[1])
        except:
            pass
    return 60


def set_fps(input_path, output_path, fps):
    os.system(f"ffmpeg -i {input_path} -filter:v fps=fps={fps} {output_path}")


def create_video(video_name, fps, output_dir):
    os.system(f"ffmpeg -framerate {fps} -pattern_type glob -i '{output_dir}/*.png' -c:v libx264 -pix_fmt yuv420p -y {output_dir}/output.mp4")


def extract_frames(input_path, output_dir):
    os.system(f"ffmpeg -i {input_path} '{output_dir}/%04d.png'")


def add_audio(current_dir, output_dir, target_path, keep_frames):
    video = target_path.split("/")[-1]
    video_name = video.split(".")[0]
    os.system(f"ffmpeg -i {output_dir}/output.mp4 -i {output_dir}/{video} -c:v copy -map 0:v:0 -map 1:a:0 -y {current_dir}/swapped-{video_name}.mp4")
    if not os.path.isfile(current_dir + "/swapped-" + video_name + ".mp4"):
        shutil.move(output_dir + "/output.mp4", current_dir + "/swapped-" + video_name + ".mp4")
    if not keep_frames:
        shutil.rmtree(output_dir)


def is_img(path):
    return path.lower().endswith(("png", "jpg", "jpeg", "bmp"))

def rreplace(s, old, new, occurrence):
    li = s.rsplit(old, occurrence)
    return new.join(li)