#include <main.h>

const char* argp_program_version = "ft_ping 1.0";
const char* argp_program_bug_address = "<jrathelo@student.42nice.fr>";
static char doc[] = "Send ICMP ECHO_REQUEST packets to network hosts.\vMandatory or optional arguments to long options "
                    "are also mandatory or optional for any corresponding short options.\n\nOptions marked with (root "
                    "only) are available only to superuser.";
static char args_doc[] = "HOST ...";

static struct argp_option options[] = {
    {0, 0, 0, 0, "Options valid for all request types:\n"},
    {"verbose", 'v', 0, 0, "verbose output"},
    {0},
};

struct arguments {
    char* args[1];
    int verbose;
};

static error_t parse_opt(int key, char* arg, struct argp_state* state) {
    struct arguments* arguments = state->input;

    switch (key) {
        case 'v':
            arguments->verbose = 1;
            break;
        case ARGP_KEY_ARG:
            if (state->arg_num >= 2)
                argp_usage(state);
            arguments->args[state->arg_num] = arg;
            break;
        case ARGP_KEY_END:
            if (state->arg_num < 1)
                argp_usage(state);
            break;
        default:
            return ARGP_ERR_UNKNOWN;
    }
    return 0;
}

static struct argp argp = {options, parse_opt, args_doc, doc};

static bool stop = false;

void sig_handler(int sig) {
    if (sig == SIGINT) {
        stop = true;
    } else if (sig == SIGALRM) {
    }
}

int main(int argc, char** argv) {
    struct arguments arguments;
    arguments.verbose = 0;
    argp_parse(&argp, argc, argv, 0, 0, &arguments);

    int sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);

    if (sock < 0) {
        dprintf(STDERR_FILENO, "%s: socket() failed: %s\n", argv[0], strerror(errno));
        exit(1);
    }
    struct sockaddr_in server;
    bzero(&server, sizeof(server));

    server.sin_family = AF_INET;
    if (inet_aton(arguments.args[0], &server.sin_addr) < 1) {
        dprintf(STDERR_FILENO, "%s: unknown host\n", argv[0]);
        close(sock);
        exit(1);
    }

    server.sin_port = htons(0);

    if (bind(sock, (struct sockaddr*)&server, sizeof(server)) < 0) {
        close(sock);
        dprintf(STDERR_FILENO, "%s: bind() failed: %s\n", argv[0], strerror(errno));
        exit(1);
    }

    struct sigaction sig_handle;

    sig_handle.sa_handler = sig_handler;

    sigaction(SIGINT, &sig_handle, 0);
    sigaction(SIGALRM, &sig_handle, 0);

    while (true) {

        if (stop) {
            break;
        }
    }
    printf("---- %s ping statistics ----\n", arguments.args[0]);
    // printf("%d packets transmitted, %d packets received, %d%% packet loss\n");
    // printf("round-trip min/avg/max/stddev = %f/%f/%f/%f ms\n");
    close(sock);
}