"""Lambda function module."""

import logging
import os
from shutil import copyfile

import boto3

from ffmpy import FFmpeg

s3 = boto3.client('s3')
ROOT_PATH = os.environ.get('LAMBDA_TASK_ROOT', __file__)
BUCKET_NAME = os.environ.get('BUCKET_NAME', 'input-assets-files')


def handler(event, context):
    """Lambda entry point."""
    try:
        from_url = event.get('from_url')
        to_url = event.get('to_url')
        # origin_ffmpeg_path = '{root}/{ffmpeg_binary}'.format(
        #     root=ROOT_PATH, ffmpeg_binary='ffmpeg')
        # input_file_path = '{root}/{file_name}'.format(
        #     root=ROOT_PATH, file_name='wav_file.wav')
        # copyfile(input_file_path, '/tmp/wav_file.wav')
        ff = FFmpeg(
            executable='ffmpeg',
            inputs={from_url: None},
            outputs={to_url: '-f format pipe:1 | curl --data-binary @- -X PUT'}
        )
        print(ff.cmd)
        print('start')
        stdout, stderr = ff.run()
        print('-------------------')
        print(stderr)
        print('finish')
        print(stdout)
        if os.path.exists('/tmp/m4a_file.m4a'):
            print('File exists')
    except Exception as e:
        print('exception')
        logging.exception(str(e))
        raise



if __name__ == '__main__':
    b = s3.generate_presigned_url(
        ClientMethod='put_object',
        ExpiresIn=3600 * 24,
        Params={
            'Bucket': BUCKET_NAME,
            'Key': 'uploaded_file.m4a'
        }
    )

    event = {
        'from_url': 'http://db62p13qhs4yj.cloudfront.net/large_wav_file_950_mb.wav',
        'to_url': 'https://input-assets-files.s3.amazonaws.com/uploaded_file.m4a?AWSAccessKeyId=AKIAIS5FZA6AGJUFJSCQ&Signature=xo3sNDDCQYxIzhhas%2BsEqJNl9JI%3D&Expires=1500469256'
    }
    handler(event, None)

ffmpeg -i http://db62p13qhs4yj.cloudfront.net/large_wav_file_950_mb.wav -f format pipe:1 | curl --data-binary @- -X PUT https://input-assets-files.s3.amazonaws.com/uploaded_file.m4a?AWSAccessKeyId=AKIAIS5FZA6AGJUFJSCQ&Signature=xo3sNDDCQYxIzhhas%2BsEqJNl9JI%3D&Expires=1500469256



ffmpeg -i /home/maximov/work_projects/the_orchard/collab/mmaximov/ffmpeg_streaming_test/large_wav_file.wav -ss 00:00:00 out1.flac