# Copyright (C) 2018-2022 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

import unittest

import numpy as np

from openvino.tools.mo.ops.scatternd import ScatterNDUpdate
from openvino.tools.mo.front.common.partial_infer.utils import int64_array
from openvino.tools.mo.graph.graph import Node
from unit_tests.utils.graph import build_graph

nodes_attributes = {'input': {'shape': None, 'value': None, 'kind': 'data'},
                    'indices': {'shape': None, 'value': None, 'kind': 'data'},
                    'updates': {'shape': None, 'value': None, 'kind': 'data'},
                    'scatternd_node': {'op': 'ScatterNDUpdate', 'kind': 'op'},
                    'output': {'shape': None, 'value': None, 'kind': 'data'}}

# graph 1
edges = [('input', 'scatternd_node', {'in': 0}),
         ('indices', 'scatternd_node', {'in': 1}),
         ('updates', 'scatternd_node', {'in': 2}),
         ('scatternd_node', 'output', {'out': 0})]

# test data for partial infer
inputs1 = {'input': {'shape': int64_array([10, 40]), 'value': None},
          'indices': {'shape': int64_array([3, 2]), 'value': None},
          'updates': {'shape': int64_array([3]), 'value': None}}

inputs2 = {'input': {'shape': int64_array([20, 30]), 'value': None},
           'indices': {'shape': int64_array([2]), 'value': None},
           'updates': {'shape': int64_array([]), 'value': None}}

inputs3 = {'input': {'shape': int64_array([20, 30, 5]), 'value': None},
           'indices': {'shape': int64_array([2]), 'value': None},
           'updates': {'shape': int64_array([5]), 'value': None}}

inputs4 = {'input': {'shape': int64_array([10, 40, 50]), 'value': None},
          'indices': {'shape': int64_array([7, 3, 2]), 'value': None},
          'updates': {'shape': int64_array([7, 3, 50]), 'value': None}}

# test data for constant folding
inputs5 = {'input': {'shape': int64_array([8]), 'value': int64_array([1, 2, 3, 4, 5, 6, 7, 8])},
          'indices': {'shape': int64_array([4, 1]), 'value': int64_array([[4], [3], [1], [7]])},
          'updates': {'shape': int64_array([4]), 'value': int64_array([9, 10, 11, 12])}}
output5 = int64_array([1, 11, 3, 10, 9, 6, 7, 12])

inputs6 = {'input': {'shape': int64_array([4, 4, 4]), 'value': int64_array([[[1, 2, 3, 4], [5, 6, 7, 8], [8, 7, 6, 5], [4, 3, 2, 1]],
                                                                            [[1, 2, 3, 4], [5, 6, 7, 8], [8, 7, 6, 5], [4, 3, 2, 1]],
                                                                            [[8, 7, 6, 5], [4, 3, 2, 1], [1, 2, 3, 4], [5, 6, 7, 8]],
                                                                            [[8, 7, 6, 5], [4, 3, 2, 1], [1, 2, 3, 4], [5, 6, 7, 8]]])},
          'indices': {'shape': int64_array([2, 1]), 'value': int64_array([[0], [2]])},
          'updates': {'shape': int64_array([2, 4, 4]), 'value': int64_array([[[5, 5, 5, 5], [6, 6, 6, 6], [7, 7, 7, 7], [8, 8, 8, 8]],
                                                                             [[1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3], [4, 4, 4, 4]]])}}
output6 = int64_array([[[5, 5, 5, 5], [6, 6, 6, 6], [7, 7, 7, 7], [8, 8, 8, 8]],
                       [[1, 2, 3, 4], [5, 6, 7, 8], [8, 7, 6, 5], [4, 3, 2, 1]],
                       [[1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3], [4, 4, 4, 4]],
                       [[8, 7, 6, 5], [4, 3, 2, 1], [1, 2, 3, 4], [5, 6, 7, 8]]])

inputs7 = {'input': {'shape': int64_array([8]), 'value': int64_array([1, 2, 3, 4, 5, 6, 7, 8])},
          'indices': {'shape': int64_array([1]), 'value': int64_array([4])},
          'updates': {'shape': int64_array([]), 'value': 9}}
output7 = int64_array([1, 2, 3, 4, 9, 6, 7, 8])

inputs8 = {'input': {'shape': int64_array([3]), 'value': int64_array([1, 2, 3])},
          'indices': {'shape': int64_array([1]), 'value': int64_array([2])},
          'updates': {'shape': int64_array([1]), 'value': int64_array([9])}}
output8 = int64_array([1, 2, 9])

class TestScatterNDUpdate(unittest.TestCase):
    def test_partial_infer1(self):
        graph = build_graph(nodes_attributes, edges, inputs1)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # prepare reference results
        ref_output_shape = np.array([10, 40], dtype=np.int32)

        # get the result
        res_output_shape = graph.node['output']['shape']

        self.assertTrue(np.array_equal(ref_output_shape, res_output_shape),
                        'values do not match expected: {} and given: {}'.format(ref_output_shape, res_output_shape))

    def test_partial_infer2(self):
        graph = build_graph(nodes_attributes, edges, inputs2)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # prepare reference results
        ref_output_shape = np.array([20, 30], dtype=np.int32)

        # get the result
        res_output_shape = graph.node['output']['shape']

        self.assertTrue(np.array_equal(ref_output_shape, res_output_shape),
                        'values do not match expected: {} and given: {}'.format(ref_output_shape, res_output_shape))

    def test_partial_infer3(self):
        graph = build_graph(nodes_attributes, edges, inputs3)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # prepare reference results
        ref_output_shape = np.array([20, 30, 5], dtype=np.int32)

        # get the result
        res_output_shape = graph.node['output']['shape']

        self.assertTrue(np.array_equal(ref_output_shape, res_output_shape),
                        'values do not match expected: {} and given: {}'.format(ref_output_shape, res_output_shape))

    def test_partial_infer4(self):
        graph = build_graph(nodes_attributes, edges, inputs4)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # prepare reference results
        ref_output_shape = np.array([10, 40, 50], dtype=np.int32)

        # get the result
        res_output_shape = graph.node['output']['shape']

        self.assertTrue(np.array_equal(ref_output_shape, res_output_shape),
                        'values do not match expected: {} and given: {}'.format(ref_output_shape, res_output_shape))

    def test_infer5(self):
        graph = build_graph(nodes_attributes, edges, inputs5)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # get the result
        res_output_value = graph.node['output']['value']

        self.assertTrue(np.array_equal(output5, res_output_value),
                        'values do not match expected: {} and given: {}'.format(output5, res_output_value))

    def test_infer6(self):
        graph = build_graph(nodes_attributes, edges, inputs6)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # get the result
        res_output_value = graph.node['output']['value']

        self.assertTrue(np.array_equal(output6, res_output_value),
                        'values do not match expected: {} and given: {}'.format(output6, res_output_value))

    def test_infer7_scalar(self):
        graph = build_graph(nodes_attributes, edges, inputs7)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # get the result
        res_output_value = graph.node['output']['value']

        self.assertTrue(np.array_equal(output7, res_output_value),
                        'values do not match expected: {} and given: {}'.format(output7, res_output_value))

    def test_infer8(self):
        graph = build_graph(nodes_attributes, edges, inputs8)
        scatternd_node = Node(graph, 'scatternd_node')
        ScatterNDUpdate.infer(scatternd_node)

        # get the result
        res_output_value = graph.node['output']['value']

        self.assertTrue(np.array_equal(output8, res_output_value),
                        'values do not match expected: {} and given: {}'.format(output8, res_output_value))
