import copy

import pytest
from conftest import golden_extension, load_json, FIXTURES_DIR

from target_revenue import validation


@pytest.mark.parametrize(
    "name",
    [
        "development-license",
        "cost-plus-operations",
        "phase-sponsorship",
        "service-with-development-allocation",
        "product-ideation",
        "general-consulting",
    ],
)
def test_canonical_stage0_extensions_are_conformant(name):
    validation.validate_extension_contract(golden_extension(name))


def test_non_conforming_extension_is_rejected():
    extension = load_json(FIXTURES_DIR / "non_conforming_extension.json")
    with pytest.raises(validation.ConformanceError) as excinfo:
        validation.validate_extension_contract(extension)
    assert "Outstanding Target" in str(excinfo.value)


def test_extension_missing_required_field_is_rejected():
    extension = copy.deepcopy(golden_extension("development-license"))
    del extension["evidence"]
    with pytest.raises(validation.ConformanceError):
        validation.validate_extension_contract(extension)


def test_extension_bad_status_is_rejected():
    extension = copy.deepcopy(golden_extension("development-license"))
    extension["status"] = "endorsed"  # not in {registered, canonical, deprecated}
    with pytest.raises(validation.ConformanceError):
        validation.validate_extension_contract(extension)


def test_core_term_redefinition_heuristic_is_case_insensitive():
    extension = copy.deepcopy(golden_extension("development-license"))
    extension["allocation"]["rule"] = "Development Credit means whatever the licensor prefers."
    errors = validation.check_extension_core_term_redefinition(extension)
    assert errors
    assert "Development Credit" in errors[0]


def test_legitimate_rule_referencing_core_term_without_redefining_is_allowed():
    extension = golden_extension("development-license")
    # References "Development Credit" as a target, not a redefinition.
    errors = validation.check_extension_core_term_redefinition(extension)
    assert errors == []