import re
from pathlib import Path


def test_customer_email_patterns_are_exact():
    from app.customers.backend.router import _email_address_pattern, _email_domain_pattern

    address = re.compile(_email_address_pattern("info@example.com"))
    assert address.search("Info <info@example.com>")
    assert not address.search("otherinfo@example.com")

    domain = re.compile(_email_domain_pattern("example.com"))
    assert domain.search("person@example.com")
    assert not domain.search("person@example.com.evil.test")
    assert not domain.search("person@notexample.com")


def test_customer_detail_exposes_email_tab_and_supplier_service_checkbox():
    template = Path("app/customers/frontend/customer_detail.html").read_text(encoding="utf-8")
    assert 'href="#emails"' in template
    assert 'id="supplierServiceEnrolled"' in template
    assert "supplier_service_enrolled: checkbox.checked" in template
    assert "/emails?limit=${customerEmailsLimit}" in template