# Copyright (C) 2018-2026 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

import platform

import numpy as np
import pytest
import torch
from pytorch_layer_test_class import PytorchLayerTest


class aten_quantized_cat(torch.nn.Module):
    def __init__(self, scale, zero_point, dtype):
        super().__init__()
        self.scale = float(scale)
        self.zero_point = int(zero_point)
        self.dtype = dtype

    def forward(self, inp):
        x = torch.quantize_per_tensor(inp, 1.0, 0, self.dtype)
        y = torch.quantize_per_tensor(inp, 1.0, 0, self.dtype)
        return torch.dequantize(torch.ops.quantized.cat([x, y], 1, self.scale, self.zero_point))


class aten_append_quantized_cat(torch.nn.Module):
    def __init__(self, scale, zero_point, dtype):
        super().__init__()
        self.scale = float(scale)
        self.zero_point = int(zero_point)
        self.dtype = dtype

    def forward(self, x):
        x = torch.quantize_per_tensor(x, 1.0, 0, self.dtype)
        list = []
        list.append(x)
        list.append(x)
        return torch.dequantize(torch.ops.quantized.cat(list, 1, self.scale, self.zero_point))


class aten_loop_append_quantized_cat(torch.nn.Module):
    def __init__(self, scale, zero_point, dtype):
        super().__init__()
        self.scale = float(scale)
        self.zero_point = int(zero_point)
        self.dtype = dtype

    def forward(self, x):
        x = torch.quantize_per_tensor(x, 1.0, 0, self.dtype)
        list = []
        for i in range(3):
            list.append(x)
        return torch.dequantize(torch.ops.quantized.cat(list, 1, self.scale, self.zero_point))


class aten_add_quantized_cat(torch.nn.Module):
    def __init__(self, scale, zero_point, dtype):
        super().__init__()
        self.scale = float(scale)
        self.zero_point = int(zero_point)
        self.dtype = dtype

    def forward(self, x):
        x = torch.quantize_per_tensor(x, 1.0, 0, self.dtype)
        list = [x, x]
        list2 = list + [x, x]
        return torch.dequantize(torch.ops.quantized.cat(list2, 1, self.scale, self.zero_point))


class TestQuantizedCat(PytorchLayerTest):

    def _prepare_input(self):
        return (np.round(self.random.rand(2, 1, 3), 4),)

    @pytest.mark.parametrize("scale", [1.0, 0.3, 1.3])
    @pytest.mark.parametrize("zero_point", [0, 1])
    @pytest.mark.parametrize("dtype", [torch.quint8, torch.qint8])
    @pytest.mark.nightly
    @pytest.mark.precommit
    @pytest.mark.xfail(condition=platform.system() == 'Darwin' and platform.machine() == 'arm64',
                       reason='Ticket - 122715')
    def test_quantized_cat(self, scale, zero_point, dtype, ie_device, precision, ir_version):
        self._test(
            aten_quantized_cat(scale, zero_point, dtype),
            ["quantized::cat", "prim::ListConstruct"],
            ie_device,
            precision,
            ir_version,
            quantized_ops=True,
            freeze_model=False,
            quant_size=scale,
        )

    @pytest.mark.parametrize("scale", [1, 0.3, 1.3])
    @pytest.mark.parametrize("zero_point", [0, 1])
    @pytest.mark.parametrize("dtype", [torch.quint8, torch.qint8])
    @pytest.mark.nightly
    @pytest.mark.precommit
    @pytest.mark.xfail(condition=platform.system() == 'Darwin' and platform.machine() == 'arm64',
                       reason='Ticket - 122715')
    def test_append_quantized_cat(self, scale, zero_point, dtype, ie_device, precision, ir_version):
        self._test(
            aten_append_quantized_cat(scale, zero_point, dtype),
            ["quantized::cat", "aten::append", "prim::ListConstruct"],
            ie_device,
            precision,
            ir_version,
            quantized_ops=True,
            freeze_model=False,
            quant_size=scale,
        )

    @pytest.mark.parametrize("scale", [1, 0.3, 1.3])
    @pytest.mark.parametrize("zero_point", [0, 1])
    @pytest.mark.parametrize("dtype", [torch.quint8, torch.qint8])
    @pytest.mark.nightly
    @pytest.mark.precommit
    @pytest.mark.xfail(
        reason="Transformation RemoveMultiSubGraphOpDanglingParamsResults doesn't support removing unused merged inputs, ticket 112833."
    )
    def test_loop_append_quantized_cat(self, scale, zero_point, dtype, ie_device, precision, ir_version):
        self._test(
            aten_loop_append_quantized_cat(scale, zero_point, dtype),
            ["quantized::cat", "aten::append", "prim::ListConstruct", "prim::Loop"],
            ie_device,
            precision,
            ir_version,
            quantized_ops=True,
            freeze_model=False,
            quant_size=scale,
        )

    @pytest.mark.parametrize("scale", [1, 0.3, 1.3])
    @pytest.mark.parametrize("zero_point", [0, 1])
    @pytest.mark.parametrize("dtype", [torch.quint8, torch.qint8])
    @pytest.mark.nightly
    @pytest.mark.precommit
    @pytest.mark.xfail(condition=platform.system() == 'Darwin' and platform.machine() == 'arm64',
                       reason='Ticket - 122715')
    def test_add_quantized_cat(self, scale, zero_point, dtype, ie_device, precision, ir_version):
        self._test(
            aten_add_quantized_cat(scale, zero_point, dtype),
            ["quantized::cat", "aten::add", "prim::ListConstruct"],
            ie_device,
            precision,
            ir_version,
            quantized_ops=True,
            freeze_model=False,
            quant_size=scale,
        )
