/*
   Copyright (c) 2010-2012 Red Hat, Inc. <http://www.redhat.com>
   This file is part of GlusterFS.

   This file is licensed to you under your choice of the GNU Lesser
   General Public License, version 3 or any later version (LGPLv3 or
   later), or the GNU General Public License, version 2 (GPLv2), in all
   cases as published by the Free Software Foundation.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <pthread.h>

#include "cli.h"
#include "cli-mem-types.h"

#define CMDBUFSIZ 1024

void *
cli_batch (void *d)
{
        struct cli_state *state = NULL;
        int               ret = 0;

        state = d;

        ret = cli_cmd_process (state, state->argc, state->argv);

        gf_log ("", GF_LOG_INFO, "Exiting with: %d", ret);
        exit (-ret);

        return NULL;
}


void *
cli_input (void *d)
{
        struct cli_state *state = NULL;
        int               ret = 0;
        char              cmdbuf[CMDBUFSIZ];
        char             *cmd = NULL;
        size_t            len = 0;

        state = d;

        for (;;) {
                printf ("%s", state->prompt);

                cmd = fgets (cmdbuf, CMDBUFSIZ, stdin);
                if (!cmd)
                        break;
                len = strlen(cmd);
                if (len > 0 && cmd[len - 1] == '\n') //strip trailing \n
                        cmd[len - 1] = '\0';
                ret = cli_cmd_process_line (state, cmd);
                if (ret != 0 && state->mode & GLUSTER_MODE_ERR_FATAL)
                        break;
        }

        exit (-ret);

        return NULL;
}


int
cli_input_init (struct cli_state *state)
{
        int  ret = 0;

        if (state->argc) {
                ret = pthread_create (&state->input, NULL, cli_batch, state);
                return ret;
        }

        if (isatty (STDIN_FILENO)) {
                state->prompt = "gluster> ";

                cli_rl_enable (state);
        } else {
                state->prompt = "";
                state->mode |= GLUSTER_MODE_SCRIPT | GLUSTER_MODE_ERR_FATAL;
        }

        if (!state->rl_enabled)
                ret = pthread_create (&state->input, NULL, cli_input, state);

        return ret;
}
