#!/usr/bin/env python3
import tempfile

from flask import request, abort, current_app, Response
from flask_classful import FlaskView
import opentracing
from schemas import SampleSchema
import json
import uwsgi
import pickle

class FilterView(FlaskView):
    sampleschema = SampleSchema(many=False)

    def post(self):
        if current_app.config.get('DROPALL'):
            return Response(status=200)

        with opentracing.tracer.start_active_span('parseAndValidate'):
            if 'file' not in request.files:
                return abort(400, "no file found")
            else:
                soundfile = request.files['file']

            if 'description' not in request.form:
                return abort(400, "no description found")
            else:
                description_raw = request.form.get("description")

            if soundfile.content_type != 'audio/wave':
                current_app.logger.info(f"Input file was not WAV.")
                return abort(415, 'Input file not a wave file.')
            try:
                desc = self.sampleschema.loads(description_raw)
            except Exception as e:
                current_app.logger.exception(e)
                return abort(417, 'Input JSON schema invalid')

        soundfile_handle, soundfile_path = tempfile.mkstemp(suffix=".wav")
        with open(soundfile_handle, "wb+") as f:
            soundfile.save(f)

        task = {
            "audio_file_path": soundfile_path,
            "description": desc
        }

        uwsgi.mule_msg(pickle.dumps(task))

        return Response(status=200)