import pytest


@pytest.fixture(scope="module")
def fused_kernel_mamba_handle(launcher):
    with launcher("state-spaces/mamba-130m", num_shard=1) as handle:
        yield handle


@pytest.fixture(scope="module")
async def fused_kernel_mamba(fused_kernel_mamba_handle):
    await fused_kernel_mamba_handle.health(300)
    return fused_kernel_mamba_handle.client


@pytest.mark.asyncio
@pytest.mark.private
async def test_fused_kernel_mamba(fused_kernel_mamba, response_snapshot):
    response = await fused_kernel_mamba.generate(
        "Test request", max_new_tokens=10, decoder_input_details=True
    )

    assert response.details.generated_tokens == 10
    assert response == response_snapshot


@pytest.mark.asyncio
@pytest.mark.private
async def test_fused_kernel_mamba_all_params(fused_kernel_mamba, response_snapshot):
    response = await fused_kernel_mamba.generate(
        "blue, red, yellow, ",
        max_new_tokens=10,
        repetition_penalty=1.2,
        return_full_text=True,
        stop_sequences=["test"],
        temperature=0.5,
        top_p=0.9,
        top_k=10,
        truncate=5,
        typical_p=0.9,
        watermark=True,
        decoder_input_details=True,
        seed=0,
    )

    assert response.details.generated_tokens == 10
    # TODO: fix so the input is not included in the output
    assert response.generated_text == "blue, red, yellow, \number and white; the color of its unders"
    assert response == response_snapshot

# TODO: fix `Expected x0.dim() == 2 to be true, but got false.`
# 94: `hidden_states, _ = self.layer_norm(hidden_states.squeeze(0))`
# NOTE: the fast layer norm has strict requirements on the input shape 
# @pytest.mark.asyncio
# @pytest.mark.private
# async def test_fused_kernel_mamba_load(fused_kernel_mamba, generate_load, response_snapshot):
#     responses = await generate_load(fused_kernel_mamba, "Test request", max_new_tokens=10, n=4)

#     assert len(responses) == 4
#     assert all([r.generated_text == responses[0].generated_text for r in responses])

#     assert responses == response_snapshot