import requests
import json
from flask import Flask, render_template, url_for, redirect, request, json
import hashlib

app = Flask(__name__)

app.secret_key = '%TGHUI8uyFGHI(*&^5rUIO9i*&^TRfvgbHNJKLKJnhgfDE3WedFGhjKOlIuyTRe4567ioP:liuytr56&8()IuGTfrEdsXcghuy6'

print("OPEN YOUR ESP SERIAL PORT READER A AND ENDER IP")
ip = input()

def hash_data(data):
    hashpass = hashlib.sha256()
    hashpass.update(bytes(password, encoding='utf8'))
    passw = hashpass.hexdigest()
    return passw

def create_account(login, password):
    passw = hash_data(password)
    data = {'username': login, 'password': passw}
    with open('accounts.json', 'rw') as f:
        for entry in json.load(f):
            if entry['username'] == login:
                return 0
        json.dump(data, f)
        return 1
def login_into_account(session, login, password):
    passw = hash_data(password)
    with open('accounts.json', 'r') as f:
        for entry in json.load(f):
            if entry['username'] == login and entry["password"] == password:
                session['loggedin'], session['username'] = True, login
                return 1
    return 0

    



def get_status():
    return requests.get("http://"+ip+"/status").text

@app.route('/', methods = ["GET", "POST"])
def index():
    if session["loggedin"] == True:
        stat = get_status().split()
        led_status = int(stat[0])
        led_brightness = int(stat[1])
        if request.method == "POST":
            if request.form.get("slide"):
                brightness = request.form.get("slide")
                print(brightness)
                led_britghtness = change(brightness)
        return render_template("index.html", led_status = led_status, led_brightness = led_brightness)
    else:
        return render_template("unauthorized.html")

@app.route('/register', methods = ["POST", "GET"])
def register():
    if request.method == "GET":
        if session['loggedin'] == True:
            return redirect('/')
        else:
            return render_template("register.html")
    else:
        data = request.args
        login = data['login']
        passw = data['password']
        if create_account(login, passw):
            return redirect('/')
        else:
            return render_template("register.html", err='Такой пользователь уже существует')

@app.route('/login', methods = ["POST", "GET"])
def login():
    if request.method == 'GET':
        if session['loggedin'] == True:
            return redirect('/')
        else:
            return render_template("login.html")
    else:
        data = request.args
        login = data['login']
        passw = data['passw']
        if login_into_account(session, login, passw):
            return redirect('/')
        else:
            return render_template("login.html", err="Неверный логин/пароль")

           

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