import os
import subprocess
from flask import Flask, send_file

app = Flask(__name__)


def find_file_by_part_name(directory, part_name):
    record_file = {
        "wav": None,
        "mp3": None,
    }
    for root, dirs, files in os.walk(directory):
        for file_name in files:
            if part_name in file_name:
                if file_name.lower().endswith(".mp3"):
                    record_file["mp3"] = os.path.join(root, file_name)
                    break
                if file_name.lower().endswith(".wav"):
                    record_file["wav"] = os.path.join(root, file_name)
    if record_file["mp3"]:
        return record_file["mp3"]
    if record_file["wav"]:
        record_file["mp3"] = record_file["wav"][:-3] + "mp3"
        with open(os.devnull, "w") as devnull:
            subprocess.call(
                ["ffmpeg", "-i", record_file["wav"], record_file["mp3"]],
                stdout=devnull,
                stderr=devnull,
            )
        return record_file["mp3"]
    return None


@app.route("/<path:path>")
def get_file(path):
    dir = "/var/spool/asterisk/monitor"
    file_path = find_file_by_part_name(dir, path)
    if file_path is not None:
        return send_file(file_path, mimetype="audio/mpeg")
    return "", 404


if __name__ == "__main__":
    app.run(host="0.0.0.0", port=3050)