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/*
 * Copyright (C) 2015, 2016 "IoT.bzh"
 * Author "Romain Forlot" <romain.forlot@iot.bzh>
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "can-signals.hpp"

#include <fnmatch.h>

#include "signals.hpp"
#include "obd2-signals.hpp"
#include "can-decoder.hpp"
#include "low-can-binding.hpp"

std::vector<std::vector<CanMessageDefinition>> CAN_MESSAGES = {
	{
		{0x620, CanMessageFormat::STANDARD, {10, 0, nullptr}, false, (uint8_t)NULL},
		{0x442, CanMessageFormat::STANDARD, {10, 0, nullptr}, false, (uint8_t)NULL},
	},
};

/**
 * @brief Dumb SIGNALS array. It is composed by CanMessageSet
 * SIGNALS[MESSAGE_SET_ID][CanSignal]
 */
std::vector<std::vector<CanSignal>> SIGNALS = {
	{
		{&(CAN_MESSAGES[MESSAGE_SET_ID][0]), "can.driver_door.open", 2, 4, 1.000000, 0.000000, 0.000000, 0.000000, {10, 0, nullptr}, false, true, nullptr, 0, false, decoder_t::booleanDecoder, nullptr, false, 0.0},
		{&(CAN_MESSAGES[MESSAGE_SET_ID][1]), "can.driver_door.close", 0, 4, 1.000000, 0.000000, 0.000000, 0.000000, {10, 0, nullptr}, false, true, nullptr, 0, false, decoder_t::booleanDecoder, nullptr, false, 0.0}
	},
};

/**
 * @fn std::vector<CanSignal>& get_can_signals()
 *
 * @return A reference to a vector of signals
 */
std::vector<CanSignal>& get_can_signals()
{
	return SIGNALS[MESSAGE_SET_ID];
}

/**
 * @fn size_t getSignalCount()
 *
 * @return the length of the array returned by get_can_signals().
 */
size_t getSignalCount()
{
	return SIGNALS[MESSAGE_SET_ID].size();
}

/**
 * @brief Retrieve can arbitration id of a given CanSignal
 *
 * @param[in] CanSignal& - a const reference to a CanSignal
 *
 * @return uint32_t - unsigned integer representing the arbitration id.
 */
uint32_t get_signal_id(const CanSignal& sig)
{
	return sig.message->id;
}

/**
 * @fn void find_can_signals(const openxc_DynamicField& key, std::vector<CanSignal*>& found_signals)
 * @brief return signals name found searching through CAN_signals and OBD2 pid
 * 
 * @param[in] const openxc_DynamicField : can contain numeric or string value in order to search against 
 *   can signals or obd2 signals name.
 * @param[out] std::vector<CanSignal*>& found_signals : provided vector to fill with ponter to signals matched.
 *
 */
void find_can_signals(const openxc_DynamicField& key, std::vector<CanSignal*>& found_signals)
{
	switch(key.type)
	{
		case openxc_DynamicField_Type::openxc_DynamicField_Type_STRING:
			lookup_signals_by_name(key.string_value, get_can_signals(), found_signals);
			break;
		case openxc_DynamicField_Type::openxc_DynamicField_Type_NUM:
			lookup_signals_by_id(key.numeric_value, get_can_signals(), found_signals);
			break;
		default:
			ERROR(binder_interface, "find_signals: wrong openxc_DynamicField specified. Use openxc_DynamicField_Type_NUM or openxc_DynamicField_Type_STRING type only.");
			break;
	}
	DEBUG(binder_interface, "Found %d signal(s)", (int)found_signals.size());
}