/*
 * DeviceManagerClient.cc
 *
 *  Created on: Mar 4, 2011
 *      Author: lamikr
 */
#include <sstream>
#include <string>

#include <plp/log.h>
#include <plp/retval.h>

#include <plp/Data.hh>
#include <plp/DeviceData.hh>

#include "DeviceManagerClient.hh"
#include "../src/plp/devicebus/DeviceBusMessageId.hh"

using namespace std;
using namespace plp;
using namespace plpbus;
using namespace plpdevicebus;

DeviceManagerClient::DeviceManagerClient() {
	_device_list	= NULL;
}

static void clean_device_list(list<Device *> *dev_lst) {
	Device	*dev;

	if (dev_lst != NULL) {
		while (dev_lst->empty() == false) {
			dev	= dev_lst->back();
			dev_lst->pop_back();
			delete(dev);
		}
		delete(dev_lst);
		dev_lst	= NULL;
	}
}

DeviceManagerClient::~DeviceManagerClient() {
	clean_device_list(_device_list);
}

const std::list<plp::Device *> *DeviceManagerClient::get_device_list(BusClient *client_param,
						int *err_flg) {
	//send_request__get_device_list(client_param);

	BusMessage	*msg_req;
	BusMessage	*msg_rsp;

	msg_rsp	= NULL;
	msg_req	= new BusMessage(MSG_TYPE_ID__GET_DEVICE_LIST);
	client_param->send_message_and_wait_response(msg_req, &msg_rsp);
	clean_device_list(_device_list);
	_device_list	= parse_device_list_msg(msg_rsp, err_flg);
	delete(msg_req);
	delete(msg_rsp);

	return _device_list;
}

BusMessage *DeviceManagerClient::get_latest_data(BusClient *client_param, string device_id_param) {
	BusMessage	*msg_req;
	BusMessage	*msg_rsp;

	msg_rsp	= NULL;
	msg_req	= new BusMessage(MSG_TYPE_ID__GET_LATEST_DATA);
	msg_req->add_string_parameter(REQ__GET_LATEST_DATA__ID, device_id_param.c_str());
	client_param->send_message_and_wait_response(msg_req, &msg_rsp);
	delete(msg_req);
	return msg_rsp;
}

list<Device *> *DeviceManagerClient::parse_device_list_msg(BusMessage *msg_param, int *err_flg) {
	int				ii;
	long				count;
	ostringstream 			key;
	string				id;
	string				name;
	string				type;
	string				datastr;
	EnumDeviceLifeCycleStatus	state;
	int				state_i;
	Device				*dev;
	Data				*data;
	list<Device *>			*ret_val;

	count	= msg_param->get_long_parameter(RSP__DEVICE_LIST__DEVICE_COUNT, err_flg);
	log_debug("device count: %ld\n", count);
	ret_val	= new list<Device *>;
	if (*err_flg == PLP_OK) {
		for (ii = 0; ii < count; ii++) {
			key.str("");
			key << RSP__DEVICE_LIST__ID << ii;
			id	= msg_param->get_string_parameter(key.str(), err_flg);
			if (*err_flg != PLP_OK)
				break;

			key.str("");
			key << RSP__DEVICE_LIST__NAME << ii;
			name	= msg_param->get_string_parameter(key.str(), err_flg);
			if (*err_flg != PLP_OK)
				break;

			key.str("");
			key << RSP__DEVICE_LIST__TYPE << ii;
			type	= msg_param->get_string_parameter(key.str(), err_flg);
			if (*err_flg != PLP_OK)
				break;

			key.str("");
			key << RSP__DEVICE_LIST__LF_STATE << ii;
			state_i	= msg_param->get_int_parameter(key.str(), err_flg);
			if (*err_flg != PLP_OK)
				break;
			state	= (EnumDeviceLifeCycleStatus)state_i;

			key.str("");
			key << RSP__DEVICE_LIST__DATA << ii;
			datastr	= msg_param->get_string_parameter(key.str(), err_flg);
			if (*err_flg != PLP_OK)
				break;

			data	= Data::parse_string(datastr);
			if (data == NULL) {
				*err_flg = PLP_ERR;
				break;
			}

			dev	= new DeviceData(id, type, name, state, data);
			ret_val->push_back(dev);
		}
	}
	return ret_val;
}