#include <cstdint>
#include <cstdio>
#include <cstdlib>

#define IRRT_DONT_TYPEDEF_INTS
#include "irrt.hpp"

static void __test_fail(const char *file, int line) {
    // NOTE: Try to make the location info follow a format that
    // VSCode/other IDEs would recognize as a clickable URL.
    printf("[!] test_fail() invoked at %s:%d", file, line);
    exit(1);
}

#define test_fail() __test_fail(__FILE__, __LINE__);

template <typename T>
bool arrays_match(int len, T *as, T *bs) {
    for (int i = 0; i < len; i++) {
        if (as[i] != bs[i]) return false;
    }
    return true;
}

template <typename T>
void debug_print_array(const char* format, int len, T *as) {
    printf("[");
    for (int i = 0; i < len; i++) {
        if (i != 0) printf(", ");
        printf(format, as[i]);
    }
    printf("]\n");
}

template <typename T>
bool assert_arrays_match(const char *label, const char *format, int len, T *expected, T *got) {
    auto match = arrays_match(len, expected, got);

    if (!match) {
        printf("expected %s: ", label);
        debug_print_array(format, len, expected);
        printf("got %s: ", label);
        debug_print_array(format, len, got);
    }

    return match;
}

static void test_strides_from_shape() {
    const uint64_t ndims = 4;
    uint64_t shape[ndims] = { 999, 3, 5, 7 };
    uint64_t strides[ndims] = { 0 };
    __nac3_ndarray_strides_from_shape64(ndims, shape, strides);

    uint64_t expected_strides[ndims] = { 3*5*7, 5*7, 7, 1 };
    if (!assert_arrays_match("strides", "%u", ndims, expected_strides, strides)) test_fail();
}

int main() {
    test_strides_from_shape();
    return 0;
}