"""The domain layer must stay framework-free.

This is enforced by actually importing the domain modules in a clean
interpreter and asserting that neither FastAPI nor SQLAlchemy got pulled in.
A comment in a README would not catch a regression; this does.
"""

from __future__ import annotations

import subprocess
import sys
from pathlib import Path

API_ROOT = Path(__file__).resolve().parents[1]

_PROBE = """
import sys

import app.domain.identity.models
import app.domain.workforce.models
import app.domain.billing.models
import app.domain.sandbox.models
import app.domain.knowledge.models
import app.domain.audit.models
import app.domain.ai_control.models
import app.domain.projects.models
import app.domain.platform.rules

forbidden = [name for name in ("fastapi", "sqlalchemy", "redis", "httpx") if name in sys.modules]
assert not forbidden, f"domain layer leaked: {forbidden}"
print("clean")
"""


def test_domain_layer_has_no_framework_dependencies():
    result = subprocess.run(
        [sys.executable, "-c", _PROBE],
        capture_output=True,
        text=True,
        cwd=str(API_ROOT),
    )
    assert result.returncode == 0, result.stderr
    assert "clean" in result.stdout


def test_domain_rules_are_usable_without_a_database():
    from app.domain.platform.rules import build_host, is_port_allocatable

    assert build_host("my-app", "msa.artacloud.ir") == "my-app.msa.artacloud.ir"
    assert is_port_allocatable(8100)
    assert not is_port_allocatable(3000)