import smtplib
from email.message import EmailMessage
from http.server import BaseHTTPRequestHandler
from urllib.parse import urlparse, parse_qs
import json


class calculationRequestHandler(BaseHTTPRequestHandler):

    gmail_user = 'xxxxxxx@gmail.com'
    gmail_password = 'xxxxxxxxx'
    mail_recipient = 'xxxxxx@gmail.com'

    def sendGmail(self, sender, sender_pass, recipient, subject, content):
        msg = EmailMessage()
        msg['Subject'] = subject
        msg['From'] = sender
        msg['To'] = recipient
        msg.set_content(content)

        try:
            server = smtplib.SMTP_SSL('smtp.gmail.com', 465)
            server.ehlo()
            server.login(sender, sender_pass)
            server.sendmail(sender, recipient, msg.as_string())
        except Exception as err:
            print(err)
            return False

        return True

    def end_headers(self):
        self.send_header('Content-type','text/plain')
        # comment this line out before deployment
        # self.send_header('Access-Control-Allow-Origin', '*')
        BaseHTTPRequestHandler.end_headers(self)

    def parse_product(self, product):
        product_dict = json.loads(product)
        del product_dict["productImgSrc"]
        del product_dict["productHref"]
        return product_dict

    def generate_content(self, my_query):
        parsed_products = []
        for product in my_query['productList[]']:
            parsed_products.append(self.parse_product(product))
        return json.dumps({
            'email': my_query['email'][0],
            'produkty': parsed_products
        }, ensure_ascii=False, indent=2)

    def do_GET(self):
        parsed_url = urlparse(self.path)
        my_query = parse_qs(parsed_url.query)
        content = self.generate_content(my_query)
        subject = 'ziadost o kalkulaciu - ' + my_query['email'][0]
        self.sendGmail(self.gmail_user, self.gmail_password, self.mail_recipient, subject, content)
        self.send_response(200)
        self.end_headers()
        return