from __future__ import annotations

from kontextual_engine import (
    Actor,
    ActorType,
    AssetRepresentation,
    AssetVersion,
    CMISAccessPoint,
    CMISAccessProfile,
    CMISAction,
    CMISBaseType,
    CMISDomainMapper,
    Classification,
    CoreRelationship,
    KnowledgeAsset,
    MetadataRecord,
    OperationContext,
    RelationshipTargetKind,
    RepresentationKind,
    SourceReference,
    VersionChangeType,
)


def _context(actor_type: ActorType = ActorType.HUMAN) -> OperationContext:
    return OperationContext.create(
        Actor.create(actor_type, actor_id=f"actor-{actor_type.value}"),
        correlation_id="corr-cmis-map",
    )


def _mapper(profile: CMISAccessProfile | None = None) -> CMISDomainMapper:
    return CMISDomainMapper(
        CMISAccessPoint(
            access_point_id="cmis-test",
            repository_id="kontextual-test",
            profile=profile or CMISAccessProfile.readonly_browser(),
            base_path="/cmis/test/browser",
            metadata={"repository_name": "Kontextual Test Repository"},
        )
    )


def _asset(sensitivity: str = "internal") -> KnowledgeAsset:
    return KnowledgeAsset.create(
        "Decision Record",
        Classification(
            asset_type="document",
            sensitivity=sensitivity,
            topics=("architecture", "cmis"),
            owner="Platform Knowledge",
            review_state="approved",
        ),
        asset_id="asset-decision-record",
        source_refs=[
            SourceReference(
                source_system="sharepoint",
                path="Architecture/ADR 0001.md",
                external_id="sp-adr-0001",
            )
        ],
        metadata={"file_name": "ADR 0001.md", "source_system": "sharepoint"},
    )


def test_mapper_exposes_repository_info_capabilities_and_base_type_definitions() -> None:
    mapper = _mapper()
    repository = mapper.repository_info()
    types = {definition["base_type_id"]: definition for definition in mapper.type_definitions()}

    assert repository["repository_id"] == "kontextual-test"
    assert repository["repository_name"] == "Kontextual Test Repository"
    assert repository["cmis_version_supported"] == "1.1"
    assert repository["binding"] == "browser"
    assert repository["capabilities"]["capability_query"] == "metadataonly"
    assert repository["capabilities"]["capability_multifiling"] is False
    assert repository["unsupported_features"]["multifiling"]["status"] == "projection_only"

    assert set(types) == {
        "cmis:document",
        "cmis:folder",
        "cmis:relationship",
        "cmis:policy",
        "cmis:item",
        "cmis:secondary",
    }
    assert types["cmis:document"]["property_definitions"]["cmis:objectId"]["required"] is True


def test_mapper_projects_asset_to_cmis_document_envelope() -> None:
    mapper = _mapper()
    asset = _asset()
    representation = AssetRepresentation.from_content(
        asset.id,
        RepresentationKind.SOURCE,
        "text/markdown",
        "# Decision Record",
        storage_ref="memory://asset-decision-record/source",
        representation_id="repr-source",
    )
    version = AssetVersion(
        asset_id=asset.id,
        sequence=3,
        change_type=VersionChangeType.CONTENT_CHANGED,
        representation_ids=("repr-source",),
        version_id="ver-current",
    )
    asset = asset.with_current_version(version.version_id)
    projection = mapper.map_asset(
        asset,
        _context(),
        representations=[representation],
        versions=[version],
        relationship_ids=["cmis:relationship:rel-derived"],
        metadata_records=[MetadataRecord("status", "accepted", confirmed=True)],
    )

    assert projection is not None
    serialized = projection.to_dict()
    assert serialized["object_id"] == "cmis:asset:asset-decision-record"
    assert serialized["base_type_id"] == CMISBaseType.DOCUMENT.value
    assert serialized["path"] == "/sources/sharepoint/Architecture/ADR 0001.md"
    assert serialized["properties"]["cmis:objectTypeId"] == "kontextual:document"
    assert serialized["properties"]["kontextual:metadata:status"] == "accepted"
    assert serialized["content_stream"]["mime_type"] == "text/markdown"
    assert serialized["properties"]["cmis:contentStreamMimeType"] == "text/markdown"
    assert serialized["properties"]["cmis:contentStreamId"] == "repr-source"
    assert serialized["version"]["cmis:versionLabel"] == "3"
    assert serialized["relationships"] == ["cmis:relationship:rel-derived"]
    assert CMISAction.GET_CONTENT_STREAM.value in serialized["allowable_actions"]
    assert CMISAction.UPDATE_PROPERTIES.value not in serialized["allowable_actions"]


def test_mapper_projects_multiple_parent_folders_without_duplicate_assets() -> None:
    mapper = _mapper()
    asset = _asset()

    parents = mapper.parent_folders_for_asset(asset)
    parent_paths = {parent["path"] for parent in parents}

    assert "/sources/sharepoint/Architecture" in parent_paths
    assert "/topics/architecture" in parent_paths
    assert "/topics/cmis" in parent_paths
    assert "/owners/Platform Knowledge" in parent_paths
    assert "/lifecycle/active" in parent_paths
    assert len(parent_paths) == len(parents)


def test_governed_authoring_projection_includes_write_allowable_actions() -> None:
    mapper = _mapper(CMISAccessProfile.governed_authoring())
    asset = _asset()
    representation = AssetRepresentation.from_content(
        asset.id,
        RepresentationKind.NORMALIZED,
        "application/json",
        "{}",
    )

    projection = mapper.map_asset(asset, _context(), representations=[representation])

    assert projection is not None
    actions = {action.value for action in projection.allowable_actions}
    assert {
        CMISAction.UPDATE_PROPERTIES.value,
        CMISAction.DELETE_OBJECT.value,
        CMISAction.SET_CONTENT_STREAM.value,
    } <= actions


def test_mapper_omits_assets_not_visible_through_profile() -> None:
    mapper = _mapper(CMISAccessProfile.readonly_browser())

    assert mapper.map_asset(_asset("confidential"), _context()) is None


def test_mapper_projects_relationship_objects() -> None:
    mapper = _mapper()
    relationship = CoreRelationship(
        source_id="asset-source",
        target_id="asset-target",
        predicate="derived_from",
        target_kind=RelationshipTargetKind.ASSET,
        confidence=0.91,
        relationship_id="rel-derived",
    )

    projection = mapper.map_relationship(relationship, _context())

    assert projection is not None
    serialized = projection.to_dict()
    assert serialized["object_id"] == "cmis:relationship:rel-derived"
    assert serialized["base_type_id"] == CMISBaseType.RELATIONSHIP.value
    assert serialized["properties"]["cmis:sourceId"] == "cmis:asset:asset-source"
    assert serialized["properties"]["cmis:targetId"] == "cmis:asset:asset-target"
    assert serialized["properties"]["kontextual:predicate"] == "derived_from"