from pathlib import Path

from incremental_indexer import rebuild_changed_file
from semantic_kernel import index_project
from sir import EdgeKind, NodeKind


def test_rebuild_changed_file_returns_delta(tmp_path: Path):
    module = tmp_path / "demo_module.bsl"
    module.write_text(
        """
Процедура Проведение()
    ПроверитьОстатки();
КонецПроцедуры

Процедура ПроверитьОстатки()
КонецПроцедуры
""",
        encoding="utf-8",
    )
    previous = index_project(tmp_path, project_id="demo")

    module.write_text(
        """
Процедура Проведение()
    ПроверитьОстатки();
    Движения.ОстаткиТоваров.Записать();
КонецПроцедуры

Процедура ПроверитьОстатки()
КонецПроцедуры
""",
        encoding="utf-8",
    )

    current, delta = rebuild_changed_file(previous, module)

    assert current.snapshot_hash != previous.snapshot_hash
    assert delta.added_edges
    assert any(node.name == "ОстаткиТоваров" for node in delta.added_nodes)


def test_rebuild_changed_xml_rebuilds_project_metadata_links(tmp_path: Path):
    xml = tmp_path / "metadata.xml"
    xml.write_text(
        """
<Configuration>
  <Document name="ЗаказПокупателя" qualifiedName="Документ.ЗаказПокупателя" />
</Configuration>
""",
        encoding="utf-8",
    )
    module = tmp_path / "Documents" / "ЗаказПокупателя" / "Ext" / "ObjectModule.bsl"
    module.parent.mkdir(parents=True)
    module.write_text("Процедура Проведение()\nКонецПроцедуры\n", encoding="utf-8")
    previous = index_project(tmp_path, project_id="xml-incremental")

    xml.write_text(
        """
<Configuration>
  <Document name="ЗаказПокупателя" qualifiedName="Документ.ЗаказПокупателя">
    <Form name="ФормаДокумента" qualifiedName="Документ.ЗаказПокупателя.ФормаДокумента">
      <Command name="Провести" qualifiedName="Документ.ЗаказПокупателя.ФормаДокумента.Провести" />
    </Form>
  </Document>
</Configuration>
""",
        encoding="utf-8",
    )

    current, delta = rebuild_changed_file(previous, xml)

    assert current.snapshot_hash != previous.snapshot_hash
    assert any(node.kind == NodeKind.FORM and node.name == "ФормаДокумента" for node in delta.added_nodes)
    assert any(node.kind == NodeKind.COMMAND and node.name == "Провести" for node in delta.added_nodes)
    assert any(edge.kind == EdgeKind.CONTAINS for edge in current.edges)
    assert any(edge.kind == EdgeKind.HAS_FORM for edge in current.edges)


def test_rebuild_changed_bsl_preserves_metadata_owner_link(tmp_path: Path):
    xml = tmp_path / "metadata.xml"
    xml.write_text(
        """
<Configuration>
  <Document name="ЗаказПокупателя" qualifiedName="Документ.ЗаказПокупателя" />
</Configuration>
""",
        encoding="utf-8",
    )
    module = tmp_path / "Documents" / "ЗаказПокупателя" / "Ext" / "ObjectModule.bsl"
    module.parent.mkdir(parents=True)
    module.write_text("Процедура Проведение()\nКонецПроцедуры\n", encoding="utf-8")
    previous = index_project(tmp_path, project_id="bsl-incremental")

    module.write_text(
        """
Процедура Проведение()
    Движения.ОстаткиТоваров.Записать();
КонецПроцедуры
""",
        encoding="utf-8",
    )

    current, delta = rebuild_changed_file(previous, module)

    assert any(node.kind == NodeKind.REGISTER and node.name == "ОстаткиТоваров" for node in delta.added_nodes)
    assert any(edge.kind == EdgeKind.CONTAINS for edge in current.edges)
    assert any(edge.kind == EdgeKind.WRITES for edge in delta.added_edges)


def test_rebuild_changed_file_refreshes_diagnostics(tmp_path: Path):
    module = tmp_path / "demo_module.bsl"
    module.write_text("Процедура Проведение()\nКонецПроцедуры\n", encoding="utf-8")
    previous = index_project(tmp_path, project_id="diagnostics-incremental")

    module.write_text("Процедура Проведение()\n", encoding="utf-8")

    current, delta = rebuild_changed_file(previous, module)

    assert any(diagnostic.code == "BSL_UNCLOSED_ROUTINE" for diagnostic in current.diagnostics)
    assert delta.updated_nodes or delta.removed_nodes or current.snapshot_hash != previous.snapshot_hash