//
// Created by Antoine Bartuccio on 05/06/2018.
//

#include <string.h>
#include "Elevator.h"

void _free__Elevator(THIS(Elevator)){
	DELETE(this->passenger_ids);
	if (this->name != NULL)
		free(this->name);
	pthread_mutex_unlock(&this->passenger_mutex);
	pthread_mutex_destroy(&this->passenger_mutex);
	free(this);
}

int get_number_of_passengers_Elevator(THIS(Elevator)){
	int num;
	pthread_mutex_lock(&this->passenger_mutex);
	num = this->passenger_ids->get_size(this->passenger_ids);
	pthread_mutex_lock(&this->passenger_mutex);
	return num;
}

int can_get_more_passengers_Elevator(_THIS(Elevator)){
	return (this->get_number_of_passengers(this) < MAX_ELEVATOR_CAPACITY);
}

Elevator *_init_Elevator(char * name){
	Elevator * new_elevator = malloc_or_die(sizeof(Elevator));
	new_elevator->state = waiting;
	new_elevator->name = strdup(name);
	new_elevator->passenger_ids = NEW(List);
	pthread_mutex_init(&new_elevator->passenger_mutex, NULL);

	LINK_ALL(Elevator, new_elevator,
			 get_number_of_passengers,
			 can_get_more_passengers
	);

	return new_elevator;
}