from semantic_versioning import InMemoryObjectVersionStore, SemanticObjectVersion, classify_version_change, diff_versions
from sir import NodeKind, SemanticNode, SirSnapshot, SourceRef


def test_object_version_store_deduplicates_same_payload():
    node = SemanticNode(
        semantic_id="procedure.demo",
        lineage_id="lineage.procedure.demo",
        kind=NodeKind.PROCEDURE,
        name="Demo",
        qualified_name="Module.Demo",
        source_ref=SourceRef(source_path="module.bsl"),
    )
    store = InMemoryObjectVersionStore()

    first = store.append_node_version(node)
    second = store.append_node_version(node)

    assert first.version_id == second.version_id
    assert len(store.history(node.lineage_id)) == 1


def test_object_version_store_versions_snapshot_nodes():
    node = SemanticNode(
        semantic_id="procedure.demo",
        lineage_id="lineage.procedure.demo",
        kind=NodeKind.PROCEDURE,
        name="Demo",
        qualified_name="Module.Demo",
        source_ref=SourceRef(source_path="module.bsl"),
    )
    snapshot = SirSnapshot(snapshot_id="snapshot.demo", project_id="demo", nodes=[node])
    store = InMemoryObjectVersionStore()

    versions = store.append_snapshot_versions(snapshot, task_id="task.1")

    assert versions[0].task_id == "task.1"
    assert store.all_versions()[0].lineage_id == node.lineage_id


def test_object_version_diff_reports_payload_changes():
    before = SemanticObjectVersion(
        version_id="version.1",
        lineage_id="lineage.procedure.demo",
        semantic_id="procedure.demo",
        object_hash="hash.1",
        payload={"name": "Demo", "attributes": {"export": False, "source": "old"}},
    )
    after = SemanticObjectVersion(
        version_id="version.2",
        lineage_id="lineage.procedure.demo",
        semantic_id="procedure.demo",
        object_hash="hash.2",
        payload={"name": "Demo", "attributes": {"export": True}, "kind": "PROCEDURE"},
    )

    diff = diff_versions(before, after)

    assert diff.changed is True
    assert [(entry.path, entry.kind) for entry in diff.entries] == [
        ("attributes.export", "CHANGE"),
        ("attributes.source", "REMOVE"),
        ("kind", "ADD"),
    ]


def test_object_version_store_finds_version_by_id():
    node = SemanticNode(
        semantic_id="procedure.demo",
        lineage_id="lineage.procedure.demo",
        kind=NodeKind.PROCEDURE,
        name="Demo",
        qualified_name="Module.Demo",
        source_ref=SourceRef(source_path="module.bsl"),
    )
    store = InMemoryObjectVersionStore()
    version = store.append_node_version(node)

    assert store.find_version(version.version_id) == version


def test_classify_version_change_detects_object_rename():
    before = SemanticObjectVersion(
        version_id="version.1",
        lineage_id="lineage.document.order",
        semantic_id="document.order",
        object_hash="hash.1",
        payload={"name": "ЗаказПокупателя", "qualified_name": "Документ.ЗаказПокупателя"},
    )
    after = SemanticObjectVersion(
        version_id="version.2",
        lineage_id="lineage.document.order",
        semantic_id="document.order",
        object_hash="hash.2",
        payload={"name": "ЗаказКлиента", "qualified_name": "Документ.ЗаказКлиента"},
    )

    change = classify_version_change(before, after)

    assert change.change_kind == "RENAME"
    assert {entry.path for entry in change.diff.entries} == {"name", "qualified_name"}


def test_classify_version_change_detects_object_move():
    before = SemanticObjectVersion(
        version_id="version.1",
        lineage_id="lineage.form.order",
        semantic_id="form.order",
        object_hash="hash.1",
        payload={"name": "ФормаДокумента", "qualified_name": "Документ.ЗаказПокупателя.ФормаДокумента"},
    )
    after = SemanticObjectVersion(
        version_id="version.2",
        lineage_id="lineage.form.order",
        semantic_id="form.order",
        object_hash="hash.2",
        payload={"name": "ФормаДокумента", "qualified_name": "Документ.ЗаказКлиента.ФормаДокумента"},
    )

    change = classify_version_change(before, after)

    assert change.change_kind == "MOVE"
    assert [entry.path for entry in change.diff.entries] == ["qualified_name"]