# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
#
# 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.

from trt_layer_auto_scan_test import TrtLayerAutoScanTest
from program_config import TensorConfig, ProgramConfig
import unittest
import numpy as np
import paddle.inference as paddle_infer
from functools import partial
from typing import List


class TrtConvertElementwiseTest_one_input_corner_case(TrtLayerAutoScanTest):

    def is_program_valid(self, program_config: ProgramConfig) -> bool:
        attrs = [
            program_config.ops[i].attrs for i in range(len(program_config.ops))
        ]
        if attrs[0]['axis'] == 0:
            return false
        ver = paddle_infer.get_trt_compile_version()
        if ver[0] * 1000 + ver[1] * 100 + ver[2] * 10 < 8415:
            return False
        return True

    def sample_program_configs(self):

        def generate_input(shape):
            return np.random.random(shape).astype(np.float32)

        for batch in [1, 2, 4]:
            for shape in [[batch, 1], [batch, 1, 32], [batch, 1, 16, 32]]:
                for axis in [-1 if len(shape) == 1 else 1]:
                    self.dims = len(shape)
                    dics = [{"axis": axis}, {"in_dtype": 0, "out_dtype": 5}]
                    ops_config = [{
                        "op_type": "equal",
                        "op_inputs": {
                            "X": ["input_data1"],
                            "Y": ["input_data2"]
                        },
                        "op_outputs": {
                            "Out": ["compare_output_data"]
                        },
                        "op_attrs": dics[0]
                    }, {
                        "op_type": "cast",
                        "op_inputs": {
                            "X": ["compare_output_data"]
                        },
                        "op_outputs": {
                            "Out": ["output_data"]
                        },
                        "op_attrs": dics[1]
                    }]
                    ops = self.generate_op_config(ops_config)

                    program_config = ProgramConfig(
                        ops=ops,
                        weights={},
                        inputs={
                            "input_data1":
                            TensorConfig(
                                data_gen=partial(generate_input, shape)),
                            "input_data2":
                            TensorConfig(
                                data_gen=partial(generate_input, shape))
                        },
                        outputs=["output_data"])

                    yield program_config

    def sample_predictor_configs(
            self, program_config) -> (paddle_infer.Config, List[int], float):

        def generate_dynamic_shape(attrs):
            # The input.dims[1] must be equal to the weight's length.
            if self.dims == 2:
                self.dynamic_shape.min_input_shape = {
                    "input_data1": [1, 1],
                    "input_data2": [1, 1]
                }
                self.dynamic_shape.max_input_shape = {
                    "input_data1": [4, 1],
                    "input_data2": [4, 1]
                }
                self.dynamic_shape.opt_input_shape = {
                    "input_data1": [2, 1],
                    "input_data2": [2, 1]
                }
            elif self.dims == 3:
                self.dynamic_shape.min_input_shape = {
                    "input_data1": [1, 1, 4],
                    "input_data2": [1, 1, 4]
                }
                self.dynamic_shape.max_input_shape = {
                    "input_data1": [4, 1, 256],
                    "input_data2": [1, 1, 256]
                }
                self.dynamic_shape.opt_input_shape = {
                    "input_data1": [2, 1, 16],
                    "input_data2": [2, 1, 16]
                }
            elif self.dims == 4:
                self.dynamic_shape.min_input_shape = {
                    "input_data1": [1, 1, 4, 4],
                    "input_data2": [1, 1, 4, 4]
                }
                self.dynamic_shape.max_input_shape = {
                    "input_data1": [4, 1, 128, 256],
                    "input_data2": [4, 1, 128, 256]
                }
                self.dynamic_shape.opt_input_shape = {
                    "input_data1": [2, 1, 32, 16],
                    "input_data2": [2, 1, 32, 16]
                }

        def clear_dynamic_shape():
            self.dynamic_shape.max_input_shape = {}
            self.dynamic_shape.min_input_shape = {}
            self.dynamic_shape.opt_input_shape = {}

        def generate_trt_nodes_num(attrs, dynamic_shape):
            if self.dims == 1:
                return 0, 3
            return 1, 2

        attrs = [
            program_config.ops[i].attrs for i in range(len(program_config.ops))
        ]

        # for static_shape
        clear_dynamic_shape()
        self.trt_param.precision = paddle_infer.PrecisionType.Float32
        yield self.create_inference_config(), generate_trt_nodes_num(
            attrs, False), 1e-5
        self.trt_param.precision = paddle_infer.PrecisionType.Half
        yield self.create_inference_config(), generate_trt_nodes_num(
            attrs, False), 1e-3

        # for dynamic_shape
        generate_dynamic_shape(attrs)
        self.trt_param.precision = paddle_infer.PrecisionType.Float32
        yield self.create_inference_config(), generate_trt_nodes_num(
            attrs, True), 1e-5
        self.trt_param.precision = paddle_infer.PrecisionType.Half
        yield self.create_inference_config(), generate_trt_nodes_num(
            attrs, True), 1e-3

    def test(self):
        self.run_test()


if __name__ == "__main__":
    unittest.main()