/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is libguac-client-rdp.
 *
 * The Initial Developer of the Original Code is
 * Michael Jumper.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include <stdlib.h>
#include <string.h>

#include <sys/select.h>
#include <errno.h>

#include <freerdp/freerdp.h>
#include <freerdp/channels/channels.h>
#include <freerdp/input.h>

#include <guacamole/socket.h>
#include <guacamole/protocol.h>
#include <guacamole/client.h>

#include "client.h"
#include "guac_handlers.h"
#include "rdp_keymap.h"

/* Client plugin arguments */
const char* GUAC_CLIENT_ARGS[] = {
    "hostname",
    "port",
    NULL
};

void rdp_freerdp_context_new(freerdp* instance, rdpContext* context) {
    /* EMPTY */
}

void rdp_freerdp_context_free(freerdp* instance, rdpContext* context) {
    /* EMPTY */
}

int guac_client_init(guac_client* client, int argc, char** argv) {

    rdp_guac_client_data* guac_client_data;

    freerdp* rdp_inst;
    rdpChannels* channels;
	rdpSettings* settings;

    char* hostname;
    int port = RDP_DEFAULT_PORT;

    if (argc < 2) {
        guac_protocol_send_error(client->socket, "Wrong argument count received.");
        guac_socket_flush(client->socket);
        return 1;
    }

    /* If port specified, use it */
    if (argv[1][0] != '\0')
        port = atoi(argv[1]);

    hostname = argv[0];

    /* Allocate client data */
    guac_client_data = malloc(sizeof(rdp_guac_client_data));

    /* Get channel manager */
    channels = freerdp_channels_new();
    guac_client_data->channels = channels;

    /* INIT SETTINGS */
    settings = malloc(sizeof(rdpSettings));
	memset(settings, 0, sizeof(rdpSettings));
    guac_client_data->settings = settings;

    /* Set hostname */
    strncpy(settings->hostname, hostname, sizeof(settings->hostname) - 1);

    /* Default size */
	settings->width = 1024;
	settings->height = 768;

	strncpy(settings->window_title, hostname, sizeof(settings->window_title));
	strcpy(settings->username, "guest");

    /* FIXME: Set RDP settings->* */

    /* Init client */
    rdp_inst = freerdp_new(settings);
    if (rdp_inst == NULL) {
        guac_protocol_send_error(client->socket, "Error initializing RDP client");
        guac_socket_flush(client->socket);
        return 1;
    }
    guac_client_data->rdp_inst = rdp_inst;
    guac_client_data->mouse_button_mask = 0;
    guac_client_data->current_surface = GUAC_DEFAULT_LAYER;

    /* Allocate FreeRDP context */
    rdp_inst->context_size = sizeof(rdp_freerdp_context);
    rdp_inst->ContextNew  = (pContextNew) rdp_freerdp_context_new;
    rdp_inst->ContextFree = (pContextFree) rdp_freerdp_context_free;
    freerdp_context_new(rdp_inst);

    /* Store client data */
    ((rdp_freerdp_context*) rdp_inst->context)->client = client;
    client->data = guac_client_data;

    /* FIXME: Set RDP handlers */

    /* Init channels (pre-connect) */
    if (freerdp_channels_pre_connect(channels, rdp_inst)) {
        guac_protocol_send_error(client->socket, "Error initializing RDP client channel manager");
        guac_socket_flush(client->socket);
        return 1;
    }

    /* Connect to RDP server */
    if (!freerdp_connect(rdp_inst)) {
        guac_protocol_send_error(client->socket, "Error connecting to RDP server");
        guac_socket_flush(client->socket);
        return 1;
    }

    /* Init channels (post-connect) */
    if (freerdp_channels_post_connect(channels, rdp_inst)) {
        guac_protocol_send_error(client->socket, "Error initializing RDP client channel manager");
        guac_socket_flush(client->socket);
        return 1;
    }

    /* Client handlers */
    client->free_handler = rdp_guac_client_free_handler;
    client->handle_messages = rdp_guac_client_handle_messages;
    client->mouse_handler = rdp_guac_client_mouse_handler;
    client->key_handler = rdp_guac_client_key_handler;

    /* Success */
    return 0;

}