/*
	Copyright (C) 2016 Oisin Carr & Skull132

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <curl\curl.h>

extern "C" __declspec(dllexport) char *send_post_request(int argc, char *argv[])
{
	if (argc < 2)
	{
		return "proc=1";
	}

	curl_global_init(CURL_GLOBAL_DEFAULT);
	CURL *curl = curl_easy_init();

	if (!curl)
	{
		return "proc=2";
	}

	// Initialize variables.
	static char return_value[33] = {0};
	long http_code = 0;
	CURLcode res;
	struct curl_slist *chunk = NULL;

	for (int i = 2; i < argc; i++)
	{
		chunk = curl_slist_append(chunk, argv[i]);
	}

	// Set curl options.
	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 2L);
	curl_easy_setopt(curl, CURLOPT_URL, argv[0]);

	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
	curl_easy_setopt(curl, CURLOPT_POST, 1L);

	char *data = argv[1];

	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);

	// Save the response.
	res = curl_easy_perform(curl);

	// Get the response code and save it to http_code.
	curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);

	// Clean up the session info.
	curl_global_cleanup();

	// Create the feedback message.
	// Format used is key=value&key=value.
	snprintf(return_value, 32, "http=%d&curl=%d", http_code, res);

	return return_value;
}

static std::string getBuffer;

// Callback function to write into the return string.
static size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
	size_t realsize = size * nmemb;
	getBuffer.append((char*)contents, realsize);
	return realsize;
}

extern "C" __declspec(dllexport) char *send_get_request(int argc, char *argv[])
{
	// If you're not using this with at least 1 custom header, why /are/ you using it?
	// Use world.Export() instead you dolt.
	if (argc < 2)
	{
		return "proc=1";
	}

	// A lot of code duplication from send_post_request. But. It's like 2AM.
	curl_global_init(CURL_GLOBAL_DEFAULT);
	CURL *curl = curl_easy_init();

	if (!curl)
	{
		return "proc=2";
	}

	// Initialize variables.
	getBuffer.clear();
	long http_code = 0;
	CURLcode res;
	struct curl_slist *chunk = NULL;

	for (int i = 1; i < argc; i++)
	{
		chunk = curl_slist_append(chunk, argv[i]);
	}

	// Set curl options.
	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 2L);
	curl_easy_setopt(curl, CURLOPT_URL, argv[0]);
	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &getBuffer);

	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);

	// Save the response.
	res = curl_easy_perform(curl);

	// Get the response code and save it to http_code.
	curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);

	// Clean up the session info.
	curl_global_cleanup();

	if (res != CURLE_OK || http_code != 200)
	{
		static char return_value[33] = {0};
		// Create the feedback message.
		// Format used is key=value&key=value.
		snprintf(return_value, 32, "http=%d&curl=%d", http_code, res);

		return return_value;
	}
	else
	{
		// No error, return the body.
		return (char *)getBuffer.c_str();
	}
}