/*
 * The actual functionality of fc-buzplay is implemented here.
 */

#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>

cmd_play(argc, argv)
	char **argv;
{
	FILE *f;
	char linebuf[256], *cp, *num1, *num2;
	int lineno;
	char *targv[4];
	u_long n1, n2, total_ms;
	int rc, timeout;

	f = fopen(argv[1], "r");
	if (!f) {
		perror(argv[1]);
		return(-1);
	}
	printf("Uploading the melody to the target\n");
	targv[0] = "I";
	targv[1] = 0;
	tpinterf_make_cmd(targv);
	if (tpinterf_send_cmd() < 0) {
		fclose(f);
		return(-1);
	}
	rc = tpinterf_pass_output(1);
	if (rc) {
		fclose(f);
		return(rc);
	}
	targv[0] = "E";
	targv[3] = 0;
	total_ms = 0;
	for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) {
		cp = index(linebuf, '\n');
		if (!cp) {
			fprintf(stderr, "%s line %d: missing newline\n",
				argv[1], lineno);
			fclose(f);
			return(-1);
		}
		for (cp = linebuf; isspace(*cp); cp++)
			;
		if (*cp == '\0' || *cp == '#')
			continue;
		if (!isdigit(*cp)) {
inv:			fprintf(stderr, "%s line %d: unexpected content\n",
				argv[1], lineno);
			fclose(f);
			return(-1);
		}
		for (num1 = cp; *cp && !isspace(*cp); cp++)
			if (!isdigit(*cp))
				goto inv;
		if (isspace(*cp))
			*cp++ = '\0';
		while (isspace(*cp))
			cp++;
		if (!isdigit(*cp))
			goto inv;
		for (num2 = cp; *cp && !isspace(*cp); cp++)
			if (!isdigit(*cp))
				goto inv;
		if (isspace(*cp))
			*cp++ = '\0';
		while (isspace(*cp))
			cp++;
		if (*cp != '\0' && *cp != '#')
			goto inv;
		n1 = strtoul(num1, 0, 10);
		n2 = strtoul(num2, 0, 10);
		if (n1 > 255) {
			fprintf(stderr,
				"%s line %d: the tone number is out of range\n",
				argv[1], lineno);
			fclose(f);
			return(-1);
		}
		if (n2 < 1 || n2 > 0xFFFF) {
			fprintf(stderr,
			"%s line %d: the duration number is out of range\n",
				argv[1], lineno);
			fclose(f);
			return(-1);
		}
		/* send it to the target */
		targv[1] = num1;
		targv[2] = num2;
		tpinterf_make_cmd(targv);
		if (tpinterf_send_cmd() < 0) {
			fclose(f);
			return(-1);
		}
		rc = tpinterf_pass_output(1);
		if (rc) {
			fclose(f);
			return(rc);
		}
		/* account for the duration */
		total_ms += n2 * 5;
	}
	fclose(f);
	if (!total_ms) {
		fprintf(stderr, "%s is empty!\n", argv[1]);
		return(-1);
	}
	printf("Requesting play of the uploaded melody on the target\n");
	targv[0] = "P";
	targv[1] = 0;
	tpinterf_make_cmd(targv);
	if (tpinterf_send_cmd() < 0)
		return(-1);
	timeout = total_ms / 1000 + 2;
	return tpinterf_pass_output(timeout);
}