import logging
from fastapi_mail import FastMail, MessageSchema, ConnectionConfig, MessageType
from pydantic import EmailStr
from app.config import get_settings

settings = get_settings()

conf = ConnectionConfig(
    MAIL_USERNAME=settings.mail_username,
    MAIL_PASSWORD=settings.mail_password,
    MAIL_FROM=settings.mail_from,
    MAIL_PORT=settings.mail_port,
    MAIL_SERVER=settings.mail_server,
    MAIL_STARTTLS=settings.mail_tls,
    MAIL_SSL_TLS=settings.mail_ssl,
    USE_CREDENTIALS=True,
    VALIDATE_CERTS=True
)

async def send_interview_email(candidate_email: EmailStr, candidate_name: str, date: str, time: str, meeting_link: str, notes: str):
    # Only try to send if credentials are provided
    if not settings.mail_username or not settings.mail_password:
        logging.warning("Email credentials not configured. Skipping interview email sending.")
        return False
        
    html = f"""
    <div style="font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; color: #333;">
        <h2 style="color: #2563eb;">Interview Scheduled</h2>
        <p>Hi {candidate_name},</p>
        <p>Your interview has been scheduled for <strong>{date}</strong> at <strong>{time}</strong>.</p>
        <p><strong>Meeting Link:</strong> <a href="{meeting_link}">{meeting_link}</a></p>
        {f'<p><strong>Notes:</strong> {notes}</p>' if notes else ''}
        <br>
        <p>Best regards,<br>HireAI Team</p>
    </div>
    """

    message = MessageSchema(
        subject="Interview Invitation - HireAI",
        recipients=[candidate_email],
        body=html,
        subtype=MessageType.html
    )

    fm = FastMail(conf)
    try:
        await fm.send_message(message)
        return True
    except Exception as e:
        logging.error(f"Failed to send email: {e}")
        return False