import smtplib
import ssl
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from app.utils.logger import logger


def send_email_google(to_email, subject, html_content, text_content=None):
    SMTP_SERVER = "smtp.gmail.com"
    PORT = 587
    FROM_EMAIL = "support@mermsemr.com"
    APP_PASSWORD = ""  # Set via env var: os.getenv("GMAIL_APP_PASSWORD")

    msg = MIMEMultipart("alternative")
    msg["Subject"] = subject
    msg["From"] = FROM_EMAIL
    msg["To"] = to_email

    if text_content:
        msg.attach(MIMEText(text_content, "plain"))
    msg.attach(MIMEText(html_content, "html"))

    context = ssl.create_default_context()

    try:
        with smtplib.SMTP(SMTP_SERVER, PORT) as server:
            server.ehlo()
            server.starttls(context=context)
            server.ehlo()
            server.login(FROM_EMAIL, APP_PASSWORD)
            server.sendmail(FROM_EMAIL, to_email, msg.as_string())
            logger.info(f"Google email sent to {to_email}")

    except smtplib.SMTPAuthenticationError:
        logger.error("Google SMTP auth failed: check FROM_EMAIL and APP_PASSWORD")
        raise
    except smtplib.SMTPConnectError as e:
        logger.error(f"Google SMTP connection error: {e}")
        raise
    except Exception as e:
        logger.error(f"Google SMTP send failed: {e}")
        raise