#include <cstdlib>
#include <iostream>
#include <sstream>
#include "../../single_include/nlohmann/json.hpp"

using namespace std;

void build_code(int max_args)
{
    stringstream ss;
    ss << "#define NLOHMANN_JSON_EXPAND( x ) x" << endl;
    ss << "#define NLOHMANN_JSON_GET_MACRO(";
    for (int i = 0 ; i < max_args ; i++)
        ss << "_" << i + 1 << ", ";
    ss << "NAME,...) NAME" << endl;
    
    ss << "#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \\" << endl;
    for (int i = max_args ; i > 1 ; i--)
        ss << "NLOHMANN_JSON_PASTE" << i << ", \\" << endl;
    ss << "NLOHMANN_JSON_PASTE1)(__VA_ARGS__))" << endl;
    
    ss << "#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)" << endl;
    for (int i = 3 ; i <= max_args ; i++)
    {
        ss << "#define NLOHMANN_JSON_PASTE" << i << "(func, "; 
        for (int j = 1 ; j < i -1 ; j++)
            ss << "v" << j << ", "; 
        ss << "v" << i-1 << ") NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE" << i-1 << "(func, ";
        for (int j = 2 ; j < i-1 ; j++)
            ss << "v" << j << ", ";
        ss << "v" << i-1 << ")" << endl;
    }
    
    cout << ss.str() << endl;
}

struct example_struct
{
    int a;
    int b;
    int c;
    int d;
    int e;
    int f;
    int g;
    int h;
    int i;
    int j;
    int k;
    int l;
    int m;
    int n;
    int o;
    int p;
    int q;
    int r;
    int s;
    int t;
    int u;
    int v;
    int w;
    int x;
    int y;
    int z;
    NLOHMANN_DEFINE_TYPE_INTRUSIVE(example_struct, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z)
};

void test_code()
{
    example_struct a;
    nlohmann::json j = a;
    cout << j << endl;
}
/*
 * 
 */
int main(int argc, char** argv) 
{
    int max_args = 64;
    build_code(max_args);
//    test_code();
       
    return 0;
}