"""Lambda match-audio-fingerprint function module."""
import base64
from operator import itemgetter

from acrcloud import acrcloud_extr_tool
import boto3
import sentry_sdk
from sentry_sdk.integrations.aws_lambda import AwsLambdaIntegration

from src import config
from src.config import app_logger


if config.SENTRY_DSN:
    sentry_sdk.init(
        dsn=config.SENTRY_DSN,
        environment=config.ENVIRONMENT,
        integrations=[AwsLambdaIntegration(timeout_warning=True)]
    )


s3_client = boto3.client('s3')


def handler(event, context):
    """Lambda Entry point."""
    app_logger.info(event)

    s3_bucket, s3_key = itemgetter('bucket', 'filename')(event)

    file_name = '/tmp/audio.flac'
    s3_client.download_file(s3_bucket, s3_key, file_name)

    start_time_seconds = 0
    audio_len_seconds = 30
    is_db_fingerprint = False
    filter_e = 0

    audio_fingerprint = acrcloud_extr_tool.create_fingerprint_by_file(
        file_name,
        start_time_seconds,
        audio_len_seconds,
        is_db_fingerprint,
        filter_e
    )

    return {
        'audio_fingerprint': base64.b64encode(audio_fingerprint).decode('ascii')
    }