import os
from flask import Flask, flash, request, redirect, url_for, render_template, send_from_directory
from werkzeug.utils import secure_filename
import secrets

UPLOAD_FOLDER = 'uploads'
ALLOWED_EXTENSIONS = {'flac', 'mp3', 'm4a', 'ogg', 'wav'}

app = Flask(__name__)

app.secret_key = secrets.token_urlsafe(16)

app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER

def allowed_file(filename):
    return '.' in filename and \
           filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS

@app.route("/")
def index():
    upload = request.args.get('upload')
    return render_template("index.jinja", status=upload)

@app.route('/', methods=['POST'])
def upload_file():
    
    if request.method == 'POST':
        if 'the_voicemail' not in request.files:
            flash('No file uploaded', 'form')
            return redirect(request.url)
        
        file = request.files['the_voicemail']
        
        if file.filename == '':
            flash('No selected file', 'form')
            return redirect(request.url)

        if file and allowed_file(file.filename):
            filename = secure_filename(file.filename)
            path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
            file.save(path)
            return redirect("?upload=completed")
    else: 
        print(request.method)
        return "not a valid thing"

@app.route('/recent')
def get_most_recent():
    files = os.listdir(app.config["UPLOAD_FOLDER"])
    paths = [os.path.join(app.config["UPLOAD_FOLDER"], basename) for basename in files]
    if paths:
        return send_from_directory(".", max(paths, key=os.path.getctime))
    else:
        return 'file not found', 404