#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
#
#  ffmpeg.py
#
#  Copyright 2023 Beat Jäckle <beat@git.jdmweb2.ch>
from ffmpeg import FFmpeg
import asyncio


async def main(part, cid, time: dict, end, title, filenamemuster, fileformat):
    utitle = title['t_']
    title = title['t']
    filename = f'out/{cid:03}_{utitle}.{fileformat}'

    ffmpeg = (
        FFmpeg()
        .option('y')
        .option('hide_banner')
    )
    if end is not None:
        ffmpeg.input(
            filenamemuster[0] +
            str(part) +
            filenamemuster[1],
            ss=time,
            to=end,

        )
    else:
        ffmpeg.input(
            filenamemuster[0] +
            str(part) +
            filenamemuster[1],
            ss=time,
            to=end,
        )
    ffmpeg.output(
        filename,
        # metadata=[f'title={title}', f'track={cid}'],
        options={
            'metadata': [f'title={title}', f'track={cid}'],
            "codec:a": "copy"
        }
    )

    @ffmpeg.on("start")
    def on_start(arguments):
        print("Arguments:", arguments)

    @ffmpeg.on("stderr")
    def on_stderr(line):
        pass
        # print("stderr:", line)

    @ffmpeg.on("progress")
    def on_progress(progress):
        print(progress)

    @ffmpeg.on("progress")
    def time_to_terminate(progress):
        # Gracefully terminate when more than 200 frames are processed
        if progress.frame > 200:
            ffmpeg.terminate()

    @ffmpeg.on("completed")
    def on_completed():
        print("Completed")

    @ffmpeg.on("terminated")
    def on_terminated():
        print("Terminated")

    @ffmpeg.on("error")
    def on_error(code):
        print("Error:", code)

    await ffmpeg.execute()


def ffmpeg(part, cid, time: dict, end, title, filenamemuster, fileformat):
    asyncio.run(main(
        part, cid, time, end, title, filenamemuster, fileformat
        ))