"""Employee invitation emails sent from the platform domain."""

from __future__ import annotations

from sqlalchemy.ext.asyncio import AsyncSession

from app.config import get_settings
from app.models import Account
from app.services.domain_provisioning import get_domain_by_name
from app.services.email_templates import BRAND_NAME, build_employee_invitation_email
from app.services.mail_sender import deliver_email
from app.services.member_invitations import (
    INVITE_EXPIRY_HOURS,
    INVITE_FROM_LOCAL,
    create_member_invitation,
)


async def send_employee_invitation(
    session: AsyncSession,
    *,
    member: Account,
    manager: Account,
) -> None:
    if not member.invitation_email:
        raise ValueError("Invitation email is required.")

    settings = get_settings()
    platform_domain = await get_domain_by_name(session, settings.platform_domain)
    if platform_domain is None:
        raise ValueError("Platform mail domain is not configured.")

    raw_token = await create_member_invitation(session, member)
    invite_url = f"https://{settings.app_public_host}/invite/{raw_token}"
    manager_name = f"{manager.first_name} {manager.last_name}".strip()
    company = member.company_domain or settings.platform_domain

    subject, body_text, body_html = build_employee_invitation_email(
        member_first_name=member.first_name,
        member_email=member.email,
        manager_name=manager_name,
        company_domain=company,
        invite_url=invite_url,
        expires_hours=INVITE_EXPIRY_HOURS,
    )

    sender = f"{INVITE_FROM_LOCAL}@{settings.platform_domain}"
    await deliver_email(
        sender=sender,
        sender_name=BRAND_NAME,
        recipients=[member.invitation_email],
        cc=[],
        bcc=[],
        subject=subject,
        body_text=body_text,
        body_html=body_html,
        domain=platform_domain,
        reply_to=manager.email,
    )