#include<stdio.h>
#include<string.h>
#include<pthread.h>
#include<stdlib.h>
#include<unistd.h>

int counter;
int gold = 0;
pthread_mutex_t lock;
int minegold = 50;

void* Mine(void *arg)
{
	long id = (long) arg;
	int i=0;
	for(; minegold >= 0; minegold-=10){
	pthread_mutex_trylock(&lock);
	if(minegold <= 0){
	break;
	}
    gold+=10;
	printf("Miner %ld gathered 10 gold from Mine 1  \n",id + 1);
	pthread_mutex_unlock(&lock);

	sleep(1);
	}


    return NULL;
}



int main(int argc, char* argv[])
{

	   int num1;
		int num2;

	pthread_t* miner;
	pthread_t* seller;
	if(argc == 3){
		 int i = 0;
        int *index = NULL;
        if (argv[1])
                num1 = atoi(argv[1]);

        index = calloc (num1, sizeof (int));
        for(i = 0; i < num1; i++)
        {
                index[i] = i;
        }

        miner = malloc(sizeof(pthread_t)*num1);


        	 i = 0;


        if (argv[2])
                num2 = atoi(argv[2]);

        index = calloc (num2, sizeof (int));
        for(i = 0; i < num2; i++)
        {
                index[i] = i;
        }

        seller = malloc(sizeof(pthread_t)*num2);
	}
	else{
			 int i = 0;
        int *index = NULL;
        num1=num2 = 2;

        index = calloc (num1, sizeof (int));
        for(i = 0; i < num1; i++)
        {
                index[i] = i;
        }

        miner = malloc(sizeof(pthread_t)*num1);

        /*
        	 i = 0;


        index = calloc (num2, sizeof (int));
        for(i = 0; i < num2; i++)
        {
                index[i] = i;
        }

        seller = malloc(sizeof(pthread_t)*num2);

		*/
	}

	// argv[2] miner
	// argv[3] seller
   long  i = 0;
    int err;


    if (pthread_mutex_init(&lock, NULL) != 0)
    {
        printf("\n mutex init failed\n");
        return 1;
    }
	for( i = 0; i < num1; i++){
     err = pthread_create(&(miner[i]), NULL, &Mine, (void*) i);
      if (err != 0)
            printf("\ncan't create thread :[%s]", strerror(err));
     }
  	/*
    for( i = 0; i < num2; i++){

     err = pthread_create(&(seller[i]), NULL, &Sell, (void*) i);
        if (err != 0)
            printf("\ncan't create thread :[%s]", strerror(err));
 	}
 	*/
 	for( i =0 ;i < num1; i++)
    pthread_join(miner[i], NULL);
    /*
    for( i =0 ;i < num2; i++)
    	pthread_join(seller[i], NULL);
	*/
    pthread_mutex_destroy(&lock);

    printf("Gold: %d\n",gold);
	free(miner);


    return 0;
}