// Copyright (c) 2022, ARM Limited.
//
//    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.

#ifndef DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#endif

#include "model_runner.h"
#include "general_utils.h"

// Remove conflicting REQUIRE definition between doctest and reference_model
#undef REQUIRE

#include "doctest.h"

using namespace TosaReference;
using namespace tosa;

template <typename T>
void compareOutput(std::vector<T>& tensor1, std::vector<T>& tensor2, size_t size)
{
    for (size_t i = 0; i < size; ++i)
    {
        CHECK((tensor1[i] == tensor2[i]));
    }
}

TEST_SUITE("model_runner")
{

TEST_CASE("simple_add_f32_test")
{
    std::string test_root(std::string(PROJECT_ROOT) + "../examples/test_add_1x4x4x4_f32/");
    std::string tosa_model_file(test_root + "flatbuffer-tflite/test_add_1x4x4x4_f32.tosa");
    std::string input0_file(test_root + "placeholder_0.npy");
    std::string input1_file(test_root + "placeholder_1.npy");
    std::string expected_output_file(test_root + "tflite_result.npy");

    std::vector<std::string> input_names = { "TosaInput_0", "TosaInput_1" };
    std::string output_name = "TosaOutput_0";

    std::vector<int32_t> input0_shape = { 1, 4, 4, 1 };
    std::vector<int32_t> input1_shape = { 1, 4, 4, 4 };
    std::vector<int32_t> output_shape = { 1, 4, 4, 4 };

    std::vector<std::vector<float>> inputs(input_names.size());
    std::vector<float> actual_outputs = { };
    std::vector<float> expected_outputs = { };

    // Read in inputs and expected outputs.
    inputs[0] = readFromNpyFile<float>(input0_file.c_str(), input0_shape);
    inputs[1] = readFromNpyFile<float>(input1_file.c_str(), input1_shape);
    expected_outputs = readFromNpyFile<float>(expected_output_file.c_str(), output_shape);

    TosaSerializationHandler handler;
    tosa_err_t error = handler.LoadFileTosaFlatbuffer(tosa_model_file.c_str());
    CHECK((error == tosa::TOSA_OK));

    GraphStatus status;

    // Initialize the ModelRunner with configurations.
    IModelRunner runner;
    status = runner.initialize(handler);
    CHECK((status == GraphStatus::TOSA_VALID));

    runner.setInput(input_names[0], inputs[0]);
    runner.setInput(input_names[1], inputs[1]);

    // Run the ModelRunner using test inputs.
    status = runner.run();
    CHECK((status == GraphStatus::TOSA_VALID));

    actual_outputs = runner.getOutput<float>(output_name);
    CHECK(!actual_outputs.empty());

    compareOutput(expected_outputs, actual_outputs, expected_outputs.size());
}

TEST_CASE("conv2d_f32_test")
{
    std::string test_root(std::string(PROJECT_ROOT) + "../examples/test_conv2d_1x1_1x32x32x8_f32_st11_padSAME_dilat11/");
    std::string tosa_model_file(test_root + "flatbuffer-tflite/test_conv2d_1x1_1x32x32x8_f32_st11_padSAME_dilat11.tosa");
    std::string input_file(test_root + "placeholder_0.npy");
    std::string expected_output_file(test_root + "tflite_result.npy");

    std::string input_name = "TosaInput_0";
    std::string output_name = "TosaOutput_0";

    std::vector<int32_t> input_shape = { 1, 32, 32, 8 };
    std::vector<int32_t> output_shape = { 1, 32, 32, 16 };

    // Read in inputs and expected outputs.
    std::vector<float> inputs           = readFromNpyFile<float>(input_file.c_str(), input_shape);
    std::vector<float> expected_outputs = readFromNpyFile<float>(expected_output_file.c_str(), output_shape);

    TosaSerializationHandler handler;
    tosa_err_t error = handler.LoadFileTosaFlatbuffer(tosa_model_file.c_str());
    CHECK((error == tosa::TOSA_OK));

    GraphStatus status;

    // Initialize the ModelRunner with configurations.
    IModelRunner runner;
    status = runner.initialize(handler);
    CHECK((status == GraphStatus::TOSA_VALID));

    runner.setInput(input_name, inputs);

    // Run the ModelRunner using test inputs.
    status = runner.run();
    CHECK((status == GraphStatus::TOSA_VALID));

    std::vector<float> actual_outputs = runner.getOutput<float>(output_name);
    CHECK(!actual_outputs.empty());

    compareOutput(expected_outputs, actual_outputs, expected_outputs.size());
}

TEST_CASE("conv2d_f32_validate_only_test")
{
    std::string test_root(std::string(PROJECT_ROOT) + "../examples/test_conv2d_1x1_1x32x32x8_f32_st11_padSAME_dilat11/");
    std::string tosa_model_file(test_root + "flatbuffer-tflite/test_conv2d_1x1_1x32x32x8_f32_st11_padSAME_dilat11.tosa");

    TosaSerializationHandler handler;
    tosa_err_t error = handler.LoadFileTosaFlatbuffer(tosa_model_file.c_str());
    CHECK((error == tosa::TOSA_OK));

    GraphStatus status;
    func_debug_t funcDebug;

    func_config_t funcConfig;
    funcConfig.validate_only = 1;

    // Initialize the ModelRunner with configurations.
    IModelRunner runner = IModelRunner(funcConfig, funcDebug);
    runner.setFuncConfig(funcConfig);
    status = runner.initialize(handler);
    CHECK((status == GraphStatus::TOSA_VALID));

    // Run the ModelRunner using no inputs, as validate_only is specified run() should still work.
    status = runner.run();
    CHECK((status == GraphStatus::TOSA_VALID));
}

}