# Copyright (c) 2021 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.

import os
import unittest
from functools import partial
from typing import Any, Dict, List

import numpy as np
from program_config import ProgramConfig, TensorConfig
from trt_layer_auto_scan_test import TrtLayerAutoScanTest

import paddle.inference as paddle_infer


class TrtConvertFcTest(TrtLayerAutoScanTest):
    def is_program_valid(self, program_config: ProgramConfig) -> bool:
        # The output has diff between gpu and trt in CI windows
        if os.name == 'nt':
            return False
        return True

    def sample_program_configs(self):
        self.trt_param.workspace_size = 1073741824

        def generate_input1(batch, attrs: List[Dict[str, Any]]):
            return np.random.random(
                [batch, 3, 64, (int)(attrs[0]["m"] / 2), 2]
            ).astype(np.float32)

        def generate_w(batch, attrs: List[Dict[str, Any]]):
            return np.random.random([attrs[0]["m"], attrs[0]["n"]]).astype(
                np.float32
            )

        def generate_bias(batch, attrs: List[Dict[str, Any]]):
            return np.random.random([attrs[0]["n"]]).astype(np.float32)

        for batch in [1, 4]:
            for [m, n] in [[32, 23]]:
                dics = [
                    {
                        "in_num_col_dims": 3,
                        # for my conveinence
                        "m": m,
                        "n": n,
                    },
                    {},
                ]

                ops_config = [
                    {
                        "op_type": "fc",
                        "op_inputs": {
                            "Input": ["input_data"],
                            "W": ["w_data"],
                            "Bias": ["bias_data"],
                        },
                        "op_outputs": {"Out": ["output_data"]},
                        "op_attrs": dics[0],
                    },
                ]

                ops = self.generate_op_config(ops_config)

                program_config = ProgramConfig(
                    ops=ops,
                    weights={
                        "w_data": TensorConfig(
                            data_gen=partial(generate_w, batch, dics)
                        ),
                        "bias_data": TensorConfig(
                            data_gen=partial(generate_bias, batch, dics)
                        ),
                    },
                    inputs={
                        "input_data": TensorConfig(
                            data_gen=partial(generate_input1, batch, dics)
                        ),
                    },
                    outputs=["output_data"],
                )

                yield program_config

    def sample_predictor_configs(
        self, program_config
    ) -> (paddle_infer.Config, List[int], float):
        def generate_dynamic_shape(attrs):
            self.dynamic_shape.min_input_shape = {
                "input_data": [1, 3, 32, 16, 2],
            }
            self.dynamic_shape.max_input_shape = {
                "input_data": [4, 3, 64, 16, 2],
            }
            self.dynamic_shape.opt_input_shape = {
                "input_data": [1, 3, 64, 16, 2],
            }

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

        def generate_trt_nodes_num(attrs, dynamic_shape):
            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, 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, 1e-3)

    def test(self):
        self.run_test()

    def test_quant(self):
        self.run_test(quant=True)


class TrtConvertFcTest2(TrtLayerAutoScanTest):
    def is_program_valid(self, program_config: ProgramConfig) -> bool:
        # The output has diff between gpu and trt in CI windows
        if os.name == 'nt':
            return False
        return True

    def sample_program_configs(self):
        self.trt_param.workspace_size = 1073741824

        def generate_input1(batch, attrs: List[Dict[str, Any]]):
            return np.random.random([batch, 3, 64, 14]).astype(np.float32)

        def generate_w(batch, attrs: List[Dict[str, Any]]):
            return np.random.random([attrs[0]["m"], attrs[0]["n"]]).astype(
                np.float32
            )

        def generate_bias(batch, attrs: List[Dict[str, Any]]):
            return np.random.random([attrs[0]["n"]]).astype(np.float32)

        for batch in [1, 4]:
            for [m, n] in [[14, 43]]:
                dics = [
                    {
                        "in_num_col_dims": 3,
                        # for my conveinence
                        "m": m,
                        "n": n,
                    },
                    {},
                ]

                ops_config = [
                    {
                        "op_type": "fc",
                        "op_inputs": {
                            "Input": ["input_data"],
                            "W": ["w_data"],
                            "Bias": ["bias_data"],
                        },
                        "op_outputs": {"Out": ["output_data"]},
                        "op_attrs": dics[0],
                    },
                ]

                ops = self.generate_op_config(ops_config)

                program_config = ProgramConfig(
                    ops=ops,
                    weights={
                        "w_data": TensorConfig(
                            data_gen=partial(generate_w, batch, dics)
                        ),
                        "bias_data": TensorConfig(
                            data_gen=partial(generate_bias, batch, dics)
                        ),
                    },
                    inputs={
                        "input_data": TensorConfig(
                            data_gen=partial(generate_input1, batch, dics)
                        ),
                    },
                    outputs=["output_data"],
                )

                yield program_config

    def sample_predictor_configs(
        self, program_config
    ) -> (paddle_infer.Config, List[int], float):
        def generate_dynamic_shape():
            self.dynamic_shape.min_input_shape = {
                "input_data": [1, 3, 32, 14],
            }
            self.dynamic_shape.max_input_shape = {
                "input_data": [4, 3, 64, 14],
            }
            self.dynamic_shape.opt_input_shape = {
                "input_data": [1, 3, 64, 14],
            }

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

        # # for static_shape
        clear_dynamic_shape()
        self.trt_param.precision = paddle_infer.PrecisionType.Float32
        yield self.create_inference_config(), (1, 2), 1e-5
        self.trt_param.precision = paddle_infer.PrecisionType.Half
        yield self.create_inference_config(), (1, 2), (1e-3, 1e-3)

        # for dynamic_shape
        generate_dynamic_shape()
        self.trt_param.precision = paddle_infer.PrecisionType.Float32
        yield self.create_inference_config(), (1, 2), 1e-5
        self.trt_param.precision = paddle_infer.PrecisionType.Half
        yield self.create_inference_config(), (1, 2), (1e-3, 1e-3)

    def test(self):
        self.run_test()


# this is the special case when x_dim.nbDims == 4 && x_num_col_dims == 1
class TrtConvertFcTest3(TrtLayerAutoScanTest):
    # this case will invoke a bug in fc_op.cc, so return False
    def is_program_valid(self, program_config: ProgramConfig) -> bool:
        return False

    def sample_program_configs(self):
        self.trt_param.workspace_size = 1073741824

        def generate_input1(batch, attrs: List[Dict[str, Any]]):
            return np.ones([batch, 14, 1, 2]).astype(np.float32)

        def generate_w(batch, attrs: List[Dict[str, Any]]):
            return np.ones([attrs[0]["m"], attrs[0]["n"]]).astype(np.float32)

        def generate_bias(batch, attrs: List[Dict[str, Any]]):
            return np.ones([attrs[0]["n"]]).astype(np.float32)

        for batch in [1, 4]:
            for [m, n] in [[28, 43]]:
                dics = [
                    {
                        "in_num_col_dims": 1,
                        "Input_scale": 0.1,
                        "out_threshold": 0.1,
                        "enable_int8": True,
                        # for my conveinence
                        "m": m,
                        "n": n,
                    },
                    {},
                ]

                ops_config = [
                    {
                        "op_type": "fc",
                        "op_inputs": {
                            "Input": ["input_data"],
                            "W": ["w_data"],
                            "Bias": ["bias_data"],
                        },
                        "op_outputs": {"Out": ["output_data"]},
                        "op_attrs": dics[0],
                    },
                ]

                ops = self.generate_op_config(ops_config)

                program_config = ProgramConfig(
                    ops=ops,
                    weights={
                        "w_data": TensorConfig(
                            data_gen=partial(generate_w, batch, dics)
                        ),
                        "bias_data": TensorConfig(
                            data_gen=partial(generate_bias, batch, dics)
                        ),
                    },
                    inputs={
                        "input_data": TensorConfig(
                            data_gen=partial(generate_input1, batch, dics)
                        ),
                    },
                    outputs=["output_data"],
                )

                yield program_config

    def sample_predictor_configs(
        self, program_config
    ) -> (paddle_infer.Config, List[int], float):
        def generate_dynamic_shape():
            self.dynamic_shape.min_input_shape = {
                "input_data": [1, 14, 1, 2],
            }
            self.dynamic_shape.max_input_shape = {
                "input_data": [4, 14, 1, 2],
            }
            self.dynamic_shape.opt_input_shape = {
                "input_data": [1, 14, 1, 2],
            }

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

        # for static_shape
        clear_dynamic_shape()
        self.trt_param.precision = paddle_infer.PrecisionType.Float32
        yield self.create_inference_config(), (1, 2), 1e-5
        self.trt_param.precision = paddle_infer.PrecisionType.Half
        yield self.create_inference_config(), (1, 2), (1e-3, 1e-3)

        # for dynamic_shape
        generate_dynamic_shape()
        self.trt_param.precision = paddle_infer.PrecisionType.Float32
        yield self.create_inference_config(), (1, 2), 1e-5
        self.trt_param.precision = paddle_infer.PrecisionType.Half
        yield self.create_inference_config(), (1, 2), (1e-3, 1e-3)
        self.trt_param.precision = paddle_infer.PrecisionType.Int8
        yield self.create_inference_config(), (1, 2), (1e-3, 1e-3)

    def test(self):
        self.run_test()

    def test_quant(self):
        self.run_test(quant=True)


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