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# Licensed under the Apache License, Version 2.0 (the "License")           #
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#     http: // www.apache.org/licenses/LICENSE-2.0                         #
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from typing import List, Optional

from lsprotocol.types import TEXT_DOCUMENT_MONIKER
from lsprotocol.types import (
    Moniker,
    MonikerKind,
    MonikerOptions,
    MonikerParams,
    Position,
    TextDocumentIdentifier,
    UniquenessLevel,
)

from ..conftest import ClientServer


class ConfiguredLS(ClientServer):
    def __init__(self):
        super().__init__()

        @self.server.feature(
            TEXT_DOCUMENT_MONIKER,
            MonikerOptions(),
        )
        def f(params: MonikerParams) -> Optional[List[Moniker]]:
            if params.text_document.uri == "file://return.list":
                return [
                    Moniker(
                        scheme="test_scheme",
                        identifier="test_identifier",
                        unique=UniquenessLevel.Global,
                        kind=MonikerKind.Local,
                    ),
                ]
            else:
                return None


@ConfiguredLS.decorate()
def test_capabilities(client_server):
    _, server = client_server
    capabilities = server.server_capabilities

    assert capabilities.moniker_provider


@ConfiguredLS.decorate()
def test_moniker_return_list(client_server):
    client, _ = client_server
    response = client.lsp.send_request(
        TEXT_DOCUMENT_MONIKER,
        MonikerParams(
            text_document=TextDocumentIdentifier(uri="file://return.list"),
            position=Position(line=0, character=0),
        ),
    ).result()

    assert response

    assert response[0].scheme == "test_scheme"
    assert response[0].identifier == "test_identifier"
    assert response[0].unique == UniquenessLevel.Global
    assert response[0].kind == MonikerKind.Local


@ConfiguredLS.decorate()
def test_references_return_none(client_server):
    client, _ = client_server
    response = client.lsp.send_request(
        TEXT_DOCUMENT_MONIKER,
        MonikerParams(
            text_document=TextDocumentIdentifier(uri="file://return.none"),
            position=Position(line=0, character=0),
        ),
    ).result()

    assert response is None
