import os
from django.conf import settings
from django.core.mail import send_mail
from django.template.loader import render_to_string
from django.urls import reverse
import uuid

def send_verification_email(user, request, is_parent=False):
    """
    Sends a verification email to a new user (player or parent).
    """
    # Ensure user has a verification code
    if not user.verification_code:
        user.verification_code = uuid.uuid4()
        user.save()

    # Build the verification URL
    verification_path = reverse('verify_account', kwargs={'verification_code': str(user.verification_code)})
    verification_url = request.build_absolute_uri(verification_path)
    
    # Determine which template and subject to use
    if is_parent:
        subject = 'Verifizieren Sie Ihr Eltern-Konto für den Baseball Organisator'
        template_prefix = 'accounts/email/parent_verification'
    else:
        subject = 'Willkommen beim Baseball Organisator! Bitte verifizieren Sie Ihr Konto.'
        template_prefix = 'accounts/email/player_verification'

    context = {
        'user': user,
        'verification_url': verification_url,
        'verification_code': user.verification_code
    }
    
    # Render email body from templates
    email_body_txt = render_to_string(f'{template_prefix}.txt', context)
    email_body_html = render_to_string(f'{template_prefix}.html', context)

    # Send or simulate email based on settings
    if settings.MTP_EMAIL_SEND == 1:
        send_mail(
            subject=subject,
            message=email_body_txt,
            from_email=settings.DEFAULT_FROM_EMAIL, # Make sure this is set in settings.py
            recipient_list=[user.email],
            html_message=email_body_html,
            fail_silently=False,
        )
    else:
        # Simulate email by saving to a file
        mbox_content = f"""From: {settings.DEFAULT_FROM_EMAIL}
To: {user.email}
Subject: {subject}
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="boundary"

--boundary
Content-Type: text/plain; charset="utf-8"

{email_body_txt}

--boundary
Content-Type: text/html; charset="utf-8"

{email_body_html}

--boundary--
"""
        # Ensure the tmp_mails directory exists
        os.makedirs('tmp_mails', exist_ok=True)
        # Save the email to a file
        file_path = os.path.join('tmp_mails', f'{user.email}_{user.verification_code}.mbox')
        with open(file_path, 'w') as f:
            f.write(mbox_content)