#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>
#include "http.h"

size_t http_savebuffer_cb(char* data, size_t size, size_t nmemb, void* clientp) {
    size_t realsize = size * nmemb;
    Response* r = (Response*)clientp;
    char* ptr = realloc(r->response, r->size + realsize + 1);
    if (!ptr)
        return 0;

    r->response = ptr;
    memcpy(&(r->response[r->size]), data, realsize);
    r->size += realsize;
    r->response[r->size] = '\0';

    return realsize;
}

// make sure url is not blank!
Response http_call(const char* url, enum HTTPMethod method, const char* body, struct curl_slist* headers) {
    Response r = {0};

    CURL* curl_ctx = curl_easy_init();
    if (!curl_ctx) {
        perror("curl init");
    }

    curl_easy_setopt(curl_ctx, CURLOPT_URL, url);
    curl_easy_setopt(curl_ctx, CURLOPT_HTTPHEADER, headers);
    curl_easy_setopt(curl_ctx, CURLOPT_WRITEFUNCTION, http_savebuffer_cb);
    curl_easy_setopt(curl_ctx, CURLOPT_WRITEDATA, (void*)&r);
    curl_easy_setopt(curl_ctx, CURLOPT_VERBOSE, 1l);

    switch (method) {
        case GET:
            // nothing to be done here
            break;
        case POST:
            curl_easy_setopt(curl_ctx, CURLOPT_POSTFIELDS, body);
            break;
        case HEAD:
            //stub
            break;
        case OPTIONS:
            //stub
            break;
        case PUT:
            //stub
            break;
        case DELETE:
            //stub
            break;
        case CONNECT:
            //stub
            break;
        case TRACE:
            //stub
            break;
        case PATCH:
            //stub
            break;
    }

    curl_easy_perform(curl_ctx);
    curl_easy_cleanup(curl_ctx);

    return r;
}

struct curl_slist* http_header_maker(char** array) {
    struct curl_slist* headers = NULL;

    for (int i = 0; array[i] != NULL; i++) {
        headers = curl_slist_append(headers, array[i]);
    }

    return headers;
}

void http_init_test() {
}