# Copyright 2019 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import numpy as np
from tensorio import compare_tensor
from akg.utils import kernel_exec as utils
from test_op import assign
from gen_random import random_gaussian


def assign_run(ref_shape, val_shape, dtype, kernel_name, attrs, cce_path="./"):
    if 'tuning' in attrs.keys():
        t = attrs.get("tuning", False)
        kernel_name = attrs.get("kernel_name", False)
        mod = utils.op_build_test(assign.assign, [ref_shape, val_shape], [dtype, dtype], kernel_name=kernel_name,
                                  attrs=attrs, tuning=t)
        if t:
            ref, val, expect = gen_data(dtype, ref_shape, val_shape)
            return mod, expect, (ref, val)
        else:
            return mod
    else:
        ref, val, expect = gen_data(dtype, ref_shape, val_shape)
        mod = utils.op_build_test(assign.assign, [ref_shape, val_shape], [dtype, dtype], kernel_name=kernel_name,
                                  attrs=attrs)
        fake_output = np.full(val_shape, np.nan, dtype)
        result, _ = utils.mod_launch(mod, (ref, val, fake_output), outputs=(0, -1), expect=expect)
        return (ref, val), result, expect, compare_tensor(result, expect, atol=5e-01, rtol=5e-03, equal_nan=True)


def gen_data(dtype, ref_shape, val_shape):
    if dtype == "float16":
        ref = random_gaussian(ref_shape, miu=1, sigma=0.1).astype(np.float16)
        val = random_gaussian(val_shape, miu=1, sigma=0.1).astype(np.float16)
    elif dtype == "int32":
        ref = np.random.randint(2, size=ref_shape).astype(np.int32)
        val = np.random.randint(2, size=val_shape).astype(np.int32)
    else:
        ref = random_gaussian(ref_shape, miu=1, sigma=0.1).astype(np.float32)
        val = random_gaussian(val_shape, miu=1, sigma=0.1).astype(np.float32)

    expect = val

    return ref, val, expect