#share data
#endpoint - точки входа
#flask, django, aiohttp
#pip install flask
#python -m pip install flask
from flask import Flask, render_template, request
from db import add_user
from sqlalchemy.exc import IntegrityError
app = Flask(__name__)
# app=decorator
@app.route('/', methods=['GET', 'POST'])
def index():
    if request.method == 'GET':
        return render_template('index.html')
    else:
        email = request.form['email']
        username = request.form['username']
        password = request.form['pw']
        password_check = request.form['pw2']
        if password != password_check:
            return render_template('index.html', error='password_error')
        try:
            add_user(username, email, password)
        except IntegrityError:
            return render_template('index.html', error='already_exists')
        return 'User was successfully signed up'

@app.route('/<name>')
def hello_ivana(name):
    return render_template('index_ivana.html', name=name)

app.run(debug=True)