#include "sicccPersister.H"

/*TODO
 * check if path is valid
 */
void
SicccPersister::set_persist_path(std::string &s)
{
    assert(!s.empty());
    perists_path = s;
}

void
SicccPersister::set_json_filename(std::string &s)
{
    assert(!s.empty());
    json_file_name = s;
}

int
SicccPersister::write_sicccfile(const Sicccobject& so)
{
    json_t *new_json = get_json_from_sicccobject(so);
    if (json_object_update(root, new_json) == 0)
        std::cout << "[DEBUG] update root json successfully" << std::endl;
    else
        std::cerr << "Error update root failed" << std::endl;
    assert(root);
    int ret = write_sicccfile();
    return ret;
}

int
SicccPersister::write_sicccfile()
{
    assert(!json_file_name.empty());
    std::string store_str = perists_path + "/" + beautify_filename();
    assert(root);
    int ret = json_dump_file(root, store_str.c_str(), JSON_INDENT(4));
    return ret;
}

Sicccobject
SicccPersister::read_json(const std::string &s)
{
    root = load_json(s);
    return Sicccobject(root);
}

std::vector<Sicccobject>
SicccPersister::read_sicccdir()
{
    DIR *dir = nullptr;
    struct dirent *entry = nullptr;
    std::vector<Sicccobject> v;
    json_error_t *error = nullptr;
    if ((dir = opendir(perists_path.c_str())) == NULL) {
        std::cerr << "Error could not open directory" << std::endl;
        return v; // should throw exception instea1d
    }
    while ((entry = readdir(dir)) != NULL) {
        if (std::strstr(entry->d_name, ".json") == NULL)
            continue;
        json_t *tmp = json_load_file(entry->d_name, JSON_DECODE_ANY, error);
        assert(tmp);
        Sicccobject so(tmp);
        v.push_back(so);
    }
    return v;
}