#include "headers/encrypt.h"


string hash_password(string password) {
    /*
    Passing strings and converting to char* because I do not want to be forced
    to use char * whenever I want to call the function. Low level stuff in the
    function, the least possible low level stuff outside.
     */
    const char* password_ = password.c_str();
    char hashed_password_[crypto_pwhash_STRBYTES];
    int memory_limit = 1.28e+8; // 1.28 e+8 = 128 e6 = 128 mb
    int cpu_limit = 2;          // this is n_threads

    int result = crypto_pwhash_str(hashed_password_,
                                   password_,
                                   strlen(password_),
                                   cpu_limit,
                                   memory_limit);
    string hashed_password{hashed_password_};

    return hashed_password;
}

bool verify_password(string hashed_password, string unhashed_password) {
    const char* password_ = unhashed_password.c_str();
    const char* hashed_password_ = hashed_password.c_str();

    if (crypto_pwhash_str_verify(
            hashed_password_, password_, strlen(password_)) != 0) {
        return false;
    } else {
        return true;
    }
}