import os
from flask import Flask, render_template, redirect, url_for, request

app = Flask(__name__)
app.config.from_object(os.environ['APP_SETTINGS'])
print(os.environ['APP_SETTINGS'])


@app.route('/')
def home():
    return "Hello World!"


@app.route('/<name>')
def hello_name(name):
    return "Hello {}!".format(name)


@app.route('/welcome')
def welcome():
    return render_template('welcome.html')  # render a template


# Route for handling the login page logic
@app.route('/login', methods=['GET', 'POST'])
def login():
    error = None
    if request.method == 'POST':
        if request.form['username'] != 'admin' or request.form['password'] != 'admin':
            error = 'Invalid Credentials. Please try again.'
        else:
            return redirect(url_for('home'))
    return render_template('login.html', error=error)


if __name__ == '__main__':
        app.run()