#define _GNU_SOURCE
#include <stdio.h>
#include <getopt.h>

#include "srv.c"

#define DEFAULT_ADDR "127.0.0.1"
#define DEFAULT_PORT 7677

void help(char* exe) {
	char* help = "%s - a simple webserver.\n"
				 "	--help:                            this help message\n"
				 "	--addr [addr], -a [addr]:          set the ip address to bind to     (default: 127.0.0.1)\n"
				 "	--port [port], -p [port]:          set the port to bind to           (default: 7677)\n"
				 "	--dir [directory], -d [directory]: set the directory to serve out of (default: the CWD)\n";
	printf(help, exe);
}

int main(int argc, char** argv) {
	char* ADDR = DEFAULT_ADDR;
	int   PORT = DEFAULT_PORT;

	int c;
	int opt_idx;
	char* longopt;
	struct option long_options[] = {
		{"addr", required_argument, 0, 'a'},
		{"port", required_argument, 0, 'p'},
		{"dir",  required_argument, 0, 'd'},
		{"help", no_argument,       0, 'h'},
		{0,      0,                 0,  0 }
	};
	while (1) {
		c = getopt_long(argc, argv, "a:p:d:h", long_options, &opt_idx);

		if (c==-1) break;

		switch (c) {
			case 0:
				longopt = (char*)long_options[opt_idx].name;
				printf("%s\n", longopt);
				if (!strcmp(longopt, "help")) {
					help(argv[0]);
					exit(0);
				} else if (!strcmp(longopt, "addr")) {
					ADDR = optarg;
				} else if (!strcmp(longopt, "port")) {
					PORT = atoi(optarg);
				} else if (!strcmp(longopt, "dir")) {
					chdir(optarg);
				}
				break;
			case 'a':
				ADDR = optarg;
				break;
			case 'p':
				PORT = atoi(optarg);
				break;
			case 'd':
				chdir(optarg);
				break;
			case 'h':
				help(argv[0]);
				exit(0);
		}
	}

	srv(ADDR, PORT);
}