#include <stdio.h>
#include <stdlib.h>
#include <readline.h>

#include "basic.h"

int main(int argc, char **argv) {
	char *p_buf;

	srand(1);	// not very usefull...

	interp_name = argv[0];
	init();

	if(argc == 2) {
		/* load the program to execute */
		if(!(p_buf = load_file(argv[1]))) exit(1);

		load_program(p_buf);
		start(p_buf);
	} else if (argc == 1) {
		readline_history hist;
		hist.str = 0; hist.max = 10;

		printf("KBASIC 0.1\n"
				"Press ^D to quit interpreter.\n\n");

		for (;;) {
			printf("\x1b[0m\x1b[32m> \x1b[1m");
			char *l = freadline(stdin, &hist);
			set_color();

			if (l == NULL) break;
			if (!strcmp(l, "exit")) break;

			prog_ip = l;
			get_token();
			if (token_type == NUMBER) {		// label. insert line.
				insert_line(l, atoi(token));
			} else {						// directly execute
				start(l);
			}
		}
	} else {
		printf("usage:\n");
		printf("    %s <filename>   run BASIC file\n", argv[0]);
		printf("    %s              interactive BASIC interpreter\n", argv[0]);
		exit(1);
	}

	return 0;
}