class FFCmd:
    def __init__(self, config):
        self.config = config

    @staticmethod
    def video_info(select, source_file):
        command_info = [
            "ffprobe", "-v",
            "error",
            "-select_streams",
            f"{select}",
            "-show_entries",
            "stream=index,channels,codec_name,codec_type,pix_fmt,level,"
                "film_grain,r_frame_rate,bit_rate,sample_rate,width,height,size,tags:stream_tags=language,duration",
            "-show_entries",
            "format=size,bit_rate,nb_streams",
            "-of", "json",
            source_file
        ]

        return command_info

    def video_convert(self, obj):
        command_convert = [
            "ffmpeg", "-y", "-i", obj.source_file,
            "-map", "0:0",
            "-c:v", "libsvtav1",
            "-preset", "5",
            "-crf", "30",
            "-g", "240",
            "-pix_fmt", "yuv420p10le",
            "-svtav1-params", "tune=0:film-grain=8:threads=16",
        ]

        if len(obj.streams_audio):
            for audio_stream in obj.streams_audio:
                if audio_stream.get("tags", {}).get("language", None) in self.config["convert"]["language"]:
                    command_convert.extend([
                        "-map", f"0:{audio_stream['index']}",
                        f"-c:a", "libopus",
                        f"-b:a", "320k",
                        f"-ac", str(audio_stream['channels'])
                    ])

        # Subtitle-Streams einbinden
        if len(obj.streams_subtitle):
            for subtitle_stream in obj.streams_subtitle:
                if subtitle_stream.get("codec_name") not in self.config["subtitle"]["blacklist"]:
                    if subtitle_stream.get("tags", {}).get("language", None) in self.config["convert"]["language"]:
                        command_convert.extend([
                            "-map", f"0:{subtitle_stream['index']}",
                            ])
        command_convert.append(obj.output_file)

        return command_convert

    @staticmethod
    def command_as_string(cmd):
        command_as_string: str = ""
        for para in cmd:
            if "/" not in para:
                command_as_string += f"{para} "
            else:
                command_as_string += f"\"{para}\" "

        return command_as_string.strip()