from django.core.mail import EmailMessage, EmailMultiAlternatives
from django.urls import reverse
from django.template.loader import render_to_string


def send_offer_email(request, offer, sender_user, recipient_user):
    html_content = render_to_string('user/trade/offer_email.html',
                                    {'request': request, 'offer': offer, 'sender_user': sender_user, 'recipient_user': recipient_user})
    plain_text = get_offer_text(request, offer, sender_user, recipient_user)

    message = EmailMultiAlternatives(
        f'{sender_user.username} wants to trade',
        plain_text,
        'no-reply@pflaenz.li',
        [recipient_user.email],
        reply_to=[sender_user.email],
    )

    message.attach_alternative(html_content, 'text/html')

    message.send()


def get_offer_text(request, offer, sender_user, recipient_user):
    return f"Hello {recipient_user.username},\n\nThe user {sender_user.username} would like to trade '{offer.title}' with you!\n\nIf you would like to trade with {sender_user.username}, just reply to this email to get in touch with them.\n\nYou can also view their offers here: {request.scheme}://{request.get_host()}{reverse('user_detail', args=[sender_user.id])}"