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

#include <sha3/sph_blake.h>


void blake_hash(const char* input, char* output, uint32_t len)
{
	sph_blake256_context ctx_blake;

	sph_blake256_set_rounds(14);

	sph_blake256_init(&ctx_blake);
	sph_blake256(&ctx_blake, input, len);
	sph_blake256_close(&ctx_blake, output);
}

static void hexlify(char *hex, const unsigned char *bin, int len)
{
	hex[0] = 0;
	for(int i=0; i < len; i++)
		sprintf(hex+strlen(hex), "%02x", bin[i]);
}

void decred_hash(const char* input, char* output, uint32_t len)
{
	sph_blake256_context ctx_blake;

	sph_blake256_set_rounds(14);

	//uint32_t* in = (uint32_t*) input;
	//fprintf(stderr, "decred input len=%u n=%08x %08x %08x %08x\n",
	//	len, in[35], in[36], in[37], in[38]);
	if (len > 180) len  = 180;

	//char hex[512];
	//hexlify(hex, input, len);
	//fprintf(stderr, "decred %s\n", hex);

	sph_blake256_init(&ctx_blake);
	sph_blake256(&ctx_blake, input, len);
	sph_blake256_close(&ctx_blake, output);
}