#include "prx/libc/include/general/VabiMacros.hpp"
#include "prx/libkernel/KernelErrors.hpp"
#include <array>
#include <cstdint>
#include <limits>
#include <stdexcept>
#include <utility>

extern "C" std::int32_t APS5_VABI sceKernelError(std::int32_t);
extern "C" int* APS5_VABI __error_nid_postfix();

static void Require(bool value) { if (!value) throw std::runtime_error("Kernel error conversion check failed"); }

int main() {
    *__error_nid_postfix() = 123;
    const std::array<std::pair<std::int32_t, std::int32_t>, 6> cases{{
        {0, 0}, {1, SCE_KERNEL_ERROR_EPERM}, {2, SCE_KERNEL_ERROR_ENOENT},
        {4, SCE_KERNEL_ERROR_EINTR}, {14, SCE_KERNEL_ERROR_EFAULT}, {22, SCE_KERNEL_ERROR_EINVAL}
    }};
    for (const auto [input, expected] : cases) {
        Require(sceKernelError(input) == expected);
        Require(*__error_nid_postfix() == 123);
    }
    Require(sceKernelError(-1) == static_cast<std::int32_t>(0x8001ffffu));
    Require(sceKernelError(std::numeric_limits<std::int32_t>::max()) == 0x1ffff);
    Require(sceKernelError(std::numeric_limits<std::int32_t>::min()) == 0x20000);
    Require(*__error_nid_postfix() == 123);
}