from __future__ import annotations


def base_graph():
    return {
        "classes": [{"uid": "customer", "name": "Customer"}],
        "properties": [
            {
                "uid": "customer-id",
                "name": "customerId",
                "class_uid": "customer",
                "required": True,
                "cardinality": "1",
                "data_element_uid": "element-1",
            }
        ],
        "relations": [],
        "constraints": [],
        "domain_links": [{"domain_uid": "domain-1", "role": "owner"}],
        "element_mappings": [{"property_uid": "customer-id", "data_element_uid": "element-1"}],
    }


def test_valid_graph_has_no_errors():
    from app.core.data_research.ontology.validation import validate_graph

    assert validate_graph(base_graph()) == []


def test_validation_reports_stable_codes_for_governance_failures():
    from app.core.data_research.ontology.validation import validate_graph

    graph = base_graph()
    graph["classes"] += [
        {"uid": "duplicate", "name": "Customer", "parent_uid": "missing"},
        {"uid": "cycle-a", "name": "CycleA", "parent_uid": "cycle-b"},
        {"uid": "cycle-b", "name": "CycleB", "parent_uid": "cycle-a"},
    ]
    graph["properties"][0]["cardinality"] = "many-to-sometimes"
    graph["properties"][0].pop("data_element_uid")
    graph["element_mappings"] = []
    graph["relations"] = [{"uid": "bad-edge", "from_class_uid": "customer", "to_class_uid": "gone"}]
    graph["domain_links"] = [{"domain_uid": "domain-1", "role": "consumer"}]

    codes = {issue.code for issue in validate_graph(graph)}
    assert codes == {
        "ONTOLOGY_DUPLICATE_NAME",
        "ONTOLOGY_DANGLING_EDGE",
        "ONTOLOGY_INHERITANCE_CYCLE",
        "ONTOLOGY_INVALID_CARDINALITY",
        "ONTOLOGY_OWNER_REQUIRED",
        "ONTOLOGY_REQUIRED_PROPERTY_UNMAPPED",
    }