#include "type.h"
#include "utils/sha256_generator.h"

/**
 * Generate SHA256 Hex Code
 */
void Net::SHA256Generator::generate() {
    unsigned char hash[SHA256_DIGEST_LENGTH];
    SHA256_CTX sha256;
    SHA256_Init(&sha256);
    SHA256_Update(&sha256, raw_data, raw_data_size);
    SHA256_Final(hash, &sha256);
    stringstream buffer;
    char buf[3];
    for(int i = 0; i < SHA256_DIGEST_LENGTH; ++i){
        sprintf(buf,"%02x",hash[i]);
        buffer << buf;
    }
    sha256_data = buffer.str();
    if_generate = true;
}

void Net::SHA256Generator::setRawData(const vector<char> &c_array) {
  raw_data = &c_array[0];
  raw_data_size = c_array.size();
  if_generate = false;
}

void Net::SHA256Generator::setRawData(const string &str) {
    raw_data = str.c_str();
    raw_data_size = str.size();
    if_generate = false;
}

string Net::SHA256Generator::getHex() {
    if (!if_generate) generate();
    return this->sha256_data;
}

Net::SHA256Generator::SHA256Generator() {
}