import os

from flask import Flask, request, redirect, flash
from werkzeug.utils import secure_filename

UPLOAD_FOLDER = '/cats'
ALLOWED_EXTENSIONS = {'txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'}

app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER

@app.route('/')
def index():
    #something connected with frontend i guess, but found no examples of this
        return "hejkan aklejka"

@app.route('/upload', methods=['POST'])
def upload():
        if 'file' not in request.files:
            flash('No file part')
            return redirect(request.url)
        file = request.files['file']
        if file.filename == '':
            flash('No selected file')
            return redirect(request.url)
        if file and allowed_file(file.filename):
            filename = secure_filename(file.filename)
            file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
            main(filename)
"""
@app.route('/cat', methods=['GET'])
def cat():
    #what should i put instead of questionmark?
    return is_cat(?)
"""
if __name__ == "__main__":
    app.run(debug=True)