#include "hearthstoneApi.hpp"
#include <curl/curl.h>
#include <format>

HearthstoneApi::HearthstoneApi(Token &&iToken) : mToken(iToken), mHeader(generateRequestHeader()) {}

std::string HearthstoneApi::generateRequestHeader() {
    return std::format("Authorization: Bearer {}", mToken.toString());
}

const std::string HearthstoneApi::getUrl(const std::string &t_parameters) {
    return std::format("https://eu.api.blizzard.com/hearthstone/{}", t_parameters);
}

const std::string HearthstoneApi::getSetOfCardsUrl(const std::string &t_card_parameters) {
    return getUrl(std::format("cards{}", t_card_parameters));
}

size_t HearthstoneApi::curlCallbackStringOutput(void *t_contents, size_t t_size, size_t t_nmemb, std::string *t_s) {
    size_t newLength = t_size * t_nmemb;
    try {
        t_s->append(static_cast<char *>(t_contents), newLength);
    } catch (std::bad_alloc &e) {
        // handle memory problem
        return 0;
    }
    return newLength;
}

std::string HearthstoneApi::makeApiRequest(const char *t_url, const char *t_header) {
    CURL *curl = curl_easy_init();
    std::string request_output;
    if (curl) {
        curl_easy_setopt(curl, CURLOPT_URL, t_url);
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlCallbackStringOutput);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &request_output);
        struct curl_slist *chunk = nullptr;
        chunk = curl_slist_append(chunk, t_header);
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
        curl_easy_perform(curl);
        curl_easy_cleanup(curl);
    }
    return request_output;
}

std::string HearthstoneApi::makeApiRequest(const std::string &t_url, const std::string &t_header) {
    return makeApiRequest(t_url.c_str(), t_header.c_str());
}

std::string HearthstoneApi::getCards(const std::string &t_card_parameters) {
    return makeApiRequest(getSetOfCardsUrl(t_card_parameters), mHeader);
}