//
// Created by lukas on 06.04.19.
//

#include "API.h"

#include <string>
#include <iostream>

#include <stdio.h>
#include <curl/curl.h>

#include "Hashmap.h"

std::string API::request(std::string myurl) {
    Hashmap<std::string,std::string> map;
    std::vector<std::string> str;

    return request(myurl,false,map,str);
}

std::string API::request(std::string myurl, bool post, Hashmap<std::string,std::string> &map, std::vector<std::string> headers) {
    CURL *curl;
    CURLcode res;


    curl = curl_easy_init();

    struct curl_slist *list = NULL;
    for (int j = 0; j < headers.size(); ++j) {
        list = curl_slist_append(list, headers.at(j).c_str());
    }


//        list = curl_slist_append(list, "Accept:");

    std::string readString;
    if (curl) {
        curl_easy_setopt(curl, CURLOPT_URL, myurl.c_str());

        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, list);


        //ssl verification
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);

        if(post){
            std::cout << "add post data\n";
            std::string poststring;
            for (int i = 0; i < map.size(); i++) {
                poststring+=map.getKey(i)+"="+map.getValue(i);
                if(i < map.size()-1){
                    poststring+="&";
                }
            }
            std::cout << "post string: " << poststring << "\n";
            curl_easy_setopt(curl, CURLOPT_POST, 1);
            curl_easy_setopt(curl, CURLOPT_POSTFIELDS, poststring.c_str());
        }else{
            std::string getstring;
            for(int i =0; i< map.size();i++){
                getstring+=map.getKey(i)+"="+map.getValue(i);
                if(i < map.size()-1){
                    getstring+="&";
                }
            }

            myurl+="?"+getstring;
        }



        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &readString);

        res = curl_easy_perform(curl);

        curl_easy_cleanup(curl);
    }
    return readString;
}

size_t API::write_data(void *contents, size_t size, size_t nmemb, FILE *stream) {
    ((std::string*)stream)->append((char*)contents, size * nmemb);
    return size * nmemb;
}