"""Transactional email via AWS SES, with a console mock fallback."""
from typing import Optional

from app.core.config import settings
from app.models import EmailLog


async def _log(to_email: str, subject: str, template: str, status: str = "sent", error: Optional[str] = None):
    try:
        await EmailLog(to_email=to_email, subject=subject, template=template,
                       status=status, error=error).insert()
    except Exception:
        pass


async def send_email(to_email: str, subject: str, body: str, template: str = "generic"):
    if settings.mock_email or not settings.ses_configured:
        print(f"\n[MOCK EMAIL] to={to_email} subject={subject}\n{body}\n")
        await _log(to_email, subject, template, status="mocked")
        return True
    try:
        import boto3
        client = boto3.client(
            "ses", region_name=settings.aws_region,
            aws_access_key_id=settings.aws_access_key_id,
            aws_secret_access_key=settings.aws_secret_access_key,
        )
        client.send_email(
            Source=settings.ses_from_email,
            Destination={"ToAddresses": [to_email]},
            Message={"Subject": {"Data": subject},
                     "Body": {"Html": {"Data": body}}},
        )
        await _log(to_email, subject, template)
        return True
    except Exception as e:  # noqa
        await _log(to_email, subject, template, status="failed", error=str(e))
        return False


async def send_verification_email(to_email: str, name: str, token: str, code: str = ""):
    link = f"{settings.frontend_url}/verify-email?token={token}"
    body = (f"Hi {name},\n\n"
            f"Your VerifyPack verification code is: {code}\n\n"
            f"Or click this link to verify: {link}\n\n"
            f"This code expires in 30 minutes.")
    await send_email(to_email, "Verify your VerifyPack email", body, "verify_email")


async def send_reset_email(to_email: str, name: str, token: str):
    link = f"{settings.frontend_url}/reset-password?token={token}"
    await send_email(to_email, "Reset your VerifyPack password",
                     f"Hi {name}, reset your password: {link}", "reset_password")


async def send_invite_email(to_email: str, org_name: str, token: str):
    link = f"{settings.frontend_url}/signup?invite={token}"
    await send_email(to_email, f"You're invited to {org_name} on VerifyPack",
                     f"Join {org_name}: {link}", "invite")