"""Bootstrap first admin user, tenant, membership and human actor from environment."""

from __future__ import annotations

import os

from psycopg2.extras import RealDictCursor

from auth import create_session, hash_password
from db import get_connection
from services.actors import create_actor
from services.audit import log_audit


def _env(name: str) -> str:
    return os.getenv(name, "").strip()


def bootstrap_admin_if_needed() -> None:
    if _env("SKIP_BOOTSTRAP").lower() in ("1", "true", "yes"):
        return

    email = _env("KAIRO_BOOTSTRAP_ADMIN_EMAIL")
    password = _env("KAIRO_BOOTSTRAP_ADMIN_PASSWORD")
    if not email or not password:
        return

    tenant_slug = _env("KAIRO_BOOTSTRAP_TENANT_SLUG") or "default"
    tenant_name = _env("KAIRO_BOOTSTRAP_TENANT_NAME") or "Default Tenant"
    display_name = _env("KAIRO_BOOTSTRAP_ADMIN_NAME") or "Kairo Admin"

    conn = get_connection()
    try:
        with conn.cursor(cursor_factory=RealDictCursor) as cur:
            cur.execute("SELECT COUNT(*) AS n FROM users")
            if cur.fetchone()["n"] > 0:
                return

            cur.execute(
                """
                INSERT INTO tenants (slug, name)
                VALUES (%s, %s)
                ON CONFLICT (slug) DO UPDATE SET name = EXCLUDED.name
                RETURNING id
                """,
                (tenant_slug, tenant_name),
            )
            tenant_row = cur.fetchone()
            if not tenant_row:
                cur.execute("SELECT id FROM tenants WHERE slug = %s", (tenant_slug,))
                tenant_row = cur.fetchone()
            tenant_id = str(tenant_row["id"])

            cur.execute(
                """
                INSERT INTO users (email, password_hash, display_name, portal_role)
                VALUES (%s, %s, %s, 'admin')
                RETURNING id
                """,
                (email.lower(), hash_password(password), display_name),
            )
            user_id = str(cur.fetchone()["id"])

            cur.execute(
                """
                INSERT INTO tenant_memberships (tenant_id, user_id, tenant_role)
                VALUES (%s, %s, 'owner')
                ON CONFLICT (tenant_id, user_id) DO NOTHING
                """,
                (tenant_id, user_id),
            )
        conn.commit()
    finally:
        conn.close()

    create_actor(
        tenant_id=tenant_id,
        actor_type="human",
        name=display_name,
        user_id=user_id,
    )
    log_audit(
        "bootstrap.admin_created",
        user_id=user_id,
        tenant_id=tenant_id,
        details={"email": email.lower(), "tenant_slug": tenant_slug},
    )
    print(f"[bootstrap] Admin user and tenant '{tenant_slug}' created")