#include <sys/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/wait.h>
#include <string.h>
#define MSGSIZE 64
int x = 20;

int main() {
	char *SB = malloc(x*2);
	for(int i = 0; i != x*2; i++){
		if (i < x) SB[i] = '|';
		else SB[i] = ' ';
	}
	int B[8];
	int Bm[8] = {0};
	int Bm_pre[8] = {0};
	int ret;
	int p[2], i;
	pipe(p);

	pid_t a = fork();
	char *sas[] = {"cava", "-p", "/home/romenskiy2012/.config/cava/band8.conf", NULL};

	char inbuf[MSGSIZE];
	if (a == 0) {
		if (dup2(p[1], STDOUT_FILENO) == -1) { perror("dup2"); _exit(127);}
		close(p[0]);
		close(p[1]);
		execvp(sas[0], sas);
		_exit(127);
	}
	close(p[1]);
	FILE *r = fdopen(p[0], "r");
	for (int i = 0;1 == 1;i++){
		fgets(inbuf, sizeof inbuf, r);
		ret = sscanf(inbuf, "%i %i %i %i %i %i %i %i",
				&B[0], &B[1], &B[2], &B[3], &B[4], &B[5], &B[6], &B[7]);

		for (int i = 0; i != 8; i++){
			if (B[i] > Bm_pre[i]) Bm_pre[i] = B[i];
		}
		for (int i = 0; i != 8; i++){
			printf("B%i [%.*s] OUT: %3d PK: %3d\n", i, x, SB + x + (B[i]*x/100*-1), B[i], Bm[i]);
		}
		printf("\033[2J\033[H");
		if (i >= 10){
			memcpy(Bm, Bm_pre, sizeof Bm_pre);
			memset(Bm_pre, 0, sizeof Bm_pre);
			i = 0;
		}
	}
    return 0;
}