#include <iostream>
#include <string>
#include <vector>

#include "config.hpp"
#include "conv_utils.hpp"
#include "tensor_layout.hpp"

namespace {

template <typename T>
bool cmp_vec(const std::vector<T>& out, const std::vector<T>& ref, const std::string& msg)
{
    if(out.size() != ref.size())
    {
        std::cout << "out.size() != ref.size(), :" << out.size() << " != " << ref.size()
                  << std::endl
                  << msg << std::endl;
        return false;
    }

    for(std::size_t i = 0; i < ref.size(); ++i)
    {
        if(out[i] != ref[i])
        {
            std::cout << "out[" << i << "] != ref[" << i << "]: " << out[i] << "!=" << ref[i]
                      << std::endl
                      << msg << std::endl;
            return false;
        }
    }
    return true;
}

bool TestConvParams_GetOutputSpatialLengths()
{
    bool res{true};
    // -------------------------- default 2D ------------------------------------
    // input NCHW {128,192,71,71},
    // weights KCYX {256,192,3,3},
    // stride {2,2},
    // dilations {1,1},
    // padding {{1,1}, {1,1}}
    ck::conv_util::ConvParams conv_params;
    std::vector<ck::index_t> out_spatial_len = conv_params.GetOutputSpatialLengths();
    res                                      = cmp_vec(out_spatial_len,
                  std::vector<ck::index_t>{36, 36},
                  "Error: ConvParams 2D default constructor.");

    conv_params.conv_filter_strides = std::vector<ck::index_t>{1, 1};
    out_spatial_len                 = conv_params.GetOutputSpatialLengths();
    res                             = cmp_vec(
        out_spatial_len, std::vector<ck::index_t>{71, 71}, "Error: ConvParams 2D stride {1,1}.");

    conv_params.conv_filter_strides = std::vector<ck::index_t>{2, 2};
    conv_params.input_left_pads     = std::vector<ck::index_t>{2, 2};
    conv_params.input_right_pads    = std::vector<ck::index_t>{2, 2};
    out_spatial_len                 = conv_params.GetOutputSpatialLengths();
    res                             = cmp_vec(out_spatial_len,
                  std::vector<ck::index_t>{37, 37},
                  "Error: ConvParams 2D padding left/right {2,2}.");

    conv_params.conv_filter_dilations = std::vector<ck::index_t>{2, 2};
    out_spatial_len                   = conv_params.GetOutputSpatialLengths();
    res                               = cmp_vec(
        out_spatial_len, std::vector<ck::index_t>{36, 36}, "Error: ConvParams 2D dilation {2,2}.");

    conv_params.conv_filter_strides   = std::vector<ck::index_t>{3, 3};
    conv_params.input_left_pads       = std::vector<ck::index_t>{1, 1};
    conv_params.input_right_pads      = std::vector<ck::index_t>{1, 1};
    conv_params.conv_filter_dilations = std::vector<ck::index_t>{2, 2};
    out_spatial_len                   = conv_params.GetOutputSpatialLengths();
    res                               = cmp_vec(out_spatial_len,
                  std::vector<ck::index_t>{23, 23},
                  "Error: ConvParams 2D strides{3,3}, padding {1,1}, dilations {2,2}.");

    // -------------------------- 1D ------------------------------------
    conv_params.num_dim_spatial        = 1;
    conv_params.filter_spatial_lengths = std::vector<ck::index_t>{3};
    conv_params.input_spatial_lengths  = std::vector<ck::index_t>{71};
    conv_params.conv_filter_strides    = std::vector<ck::index_t>{2};
    conv_params.conv_filter_dilations  = std::vector<ck::index_t>{1};
    conv_params.input_left_pads        = std::vector<ck::index_t>{1};
    conv_params.input_right_pads       = std::vector<ck::index_t>{1};

    out_spatial_len = conv_params.GetOutputSpatialLengths();
    res             = cmp_vec(
        out_spatial_len, std::vector<ck::index_t>{36}, "Error: ConvParams 1D default constructor.");

    conv_params.conv_filter_strides = std::vector<ck::index_t>{1, 1};
    out_spatial_len                 = conv_params.GetOutputSpatialLengths();
    res =
        cmp_vec(out_spatial_len, std::vector<ck::index_t>{71}, "Error: ConvParams 1D stride {1}.");

    conv_params.conv_filter_strides = std::vector<ck::index_t>{2};
    conv_params.input_left_pads     = std::vector<ck::index_t>{2};
    conv_params.input_right_pads    = std::vector<ck::index_t>{2};
    out_spatial_len                 = conv_params.GetOutputSpatialLengths();
    res                             = cmp_vec(out_spatial_len,
                  std::vector<ck::index_t>{37},
                  "Error: ConvParams 1D padding left/right {2}.");

    conv_params.conv_filter_dilations = std::vector<ck::index_t>{2};
    out_spatial_len                   = conv_params.GetOutputSpatialLengths();
    res                               = cmp_vec(
        out_spatial_len, std::vector<ck::index_t>{36}, "Error: ConvParams 1D dilation {2}.");

    conv_params.conv_filter_strides   = std::vector<ck::index_t>{3};
    conv_params.input_left_pads       = std::vector<ck::index_t>{1};
    conv_params.input_right_pads      = std::vector<ck::index_t>{1};
    conv_params.conv_filter_dilations = std::vector<ck::index_t>{2};
    out_spatial_len                   = conv_params.GetOutputSpatialLengths();
    res                               = cmp_vec(out_spatial_len,
                  std::vector<ck::index_t>{23},
                  "Error: ConvParams 1D strides{3}, padding {1}, dilations {2}.");

    return res;
}

bool TestGetHostTensorDescriptor()
{
    bool res{true};
    namespace tl = ck::tensor_layout::convolution;
    std::vector<std::size_t> dims{2, 3, 4, 5};
    HostTensorDescriptor h = ck::conv_util::GetHostTensorDescriptor(dims, tl::NHWC{});
    res = cmp_vec(h.GetLengths(), {2, 3, 4, 5}, "Error: wrong NHWC dimensions lengths!");
    res =
        cmp_vec(h.GetStrides(), {3 * 4 * 5, 1, 3 * 5, 3}, "Error: wrong NHWC dimensions strides!");

    h   = ck::conv_util::GetHostTensorDescriptor(dims, tl::NCHW{});
    res = cmp_vec(h.GetLengths(), {2, 3, 4, 5}, "Error: wrong NCHW dimensions lengths!");
    res =
        cmp_vec(h.GetStrides(), {3 * 4 * 5, 4 * 5, 5, 1}, "Error: wrong NCHW dimensions strides!");

    dims = std::vector<std::size_t>{2, 3, 4};
    h    = ck::conv_util::GetHostTensorDescriptor(dims, tl::NWC{});
    res  = cmp_vec(h.GetLengths(), {2, 3, 4}, "Error: wrong NWC dimensions lengths!");
    res  = cmp_vec(h.GetStrides(), {3 * 4, 1, 3}, "Error: wrong NWC dimensions strides!");

    h   = ck::conv_util::GetHostTensorDescriptor(dims, tl::NCW{});
    res = cmp_vec(h.GetLengths(), {2, 3, 4}, "Error: wrong NCW dimensions lengths!");
    res = cmp_vec(h.GetStrides(), {3 * 4, 4, 1}, "Error: wrong NCW dimensions strides!");

    return res;
}

} // namespace

int main(void)
{
    bool res = TestConvParams_GetOutputSpatialLengths();
    std::cout << "TestConvParams_GetOutputSpatialLengths ..... " << (res ? "SUCCESS" : "FAILURE")
              << std::endl;
    res = TestGetHostTensorDescriptor();
    std::cout << "TestGetHostTensorDescriptor ..... " << (res ? "SUCCESS" : "FAILURE") << std::endl;
    return 0;
}