#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>

#include "sysendian.h"

#include "ar2/argon2.h"
#include "ar2/core.h"

static const size_t INPUT_BYTES = 80;  // Lenth of a block header in bytes. Input Length = Salt Length (salt = input)
static const size_t OUTPUT_BYTES = 32; // Length of output needed for a 256-bit hash
static const unsigned int DEFAULT_ARGON2_FLAG = 2; //Same as ARGON2_DEFAULT_FLAGS

void argon2d_call(const void *input, void *output)
{
    argon2_context context;
    context.out = (uint8_t *)output;
    context.outlen = (uint32_t)OUTPUT_BYTES;
    context.pwd = (uint8_t *)input;
    context.pwdlen = (uint32_t)INPUT_BYTES;
    context.salt = (uint8_t *)input; //salt = input
    context.saltlen = (uint32_t)INPUT_BYTES;
    context.secret = NULL;
    context.secretlen = 0;
    context.ad = NULL;
    context.adlen = 0;
    context.allocate_cbk = NULL;
    context.free_cbk = NULL;
    context.flags = DEFAULT_ARGON2_FLAG; // = ARGON2_DEFAULT_FLAGS
    // main configurable Argon2 hash parameters
    context.m_cost = 500;  // Memory in KiB (512KB)
    context.lanes = 8;     // Degree of Parallelism
    context.threads = 1;   // Threads
    context.t_cost = 2;    // Iterations

	argon2_ctx(&context, Argon2_d);
}

void argon2d_dyn_hash(const unsigned char* input, unsigned char* output, unsigned int len)
{
	argon2d_call(input, output);
}