/**

 *  $Id: parse.c 153 2008-04-27 07:26:15Z mbroeker $

 * $URL: http://localhost/svn/c/mcbot/trunk/src/parse.c $

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <time.h>

#include <mcbot.h>

#include <database.h>

#include <locale.h>

#include <libintl.h>

#ifndef DATABASE_FILE

#define DATABASE_FILE "/var/lib/nobody/data/mcbot.dat"

#endif

#ifndef SOURCE_URL

#define SOURCE_URL "http://largo.homelinux.org/cgi-bin/gitweb.cgi?p=net/mcbot.git"

#endif

#define    HELP  0

#define    JOIN  1

#define   LEAVE  2

#define     ADD  3

#define REPLACE  4

#define  DELETE  5

#define    LIST  6

#define  SEARCH  7

#define    INFO  8

#define    PING  9

#define      ON 10

#define     OFF 11

#define   DEBUG 12

#define VACCUUM 13

#define  LOGOUT 14

#define     WHO 15

#define   WHOIS 16

#define    TIME 17

#define    TELL 18

#define      OP 19

const

char *COMMAND_LIST[] = {

    "!help      Known Commands: join(1), leave(2), add(3), replace(4), delete(5), list(6), search(7), info(8)\r\n",

    "!join:     Joins a new channel\r\n",

    "!leave:    Parts from the current channel\r\n",

    "!add:      adds an entry\r\n",

    "!replace:  replaces an entry\r\n",

    "!delete:   deletes an entry\r\n",

    "!list:     lists the number of stored values\r\n",

    "!search:   searches an entry up\r\n",

    "!info:     Prints the current Bot-Version\r\n",

    "!ping:     pings an host\r\n",

    "!on:       enables autolearning mode\r\n",

    "!off:      disables autolearning\r\n",

    "!debug:    prints some debug infos\r\n",

    "!vaccuum:  reorganizes the database\r\n",

    "!logout:   Protected logout function\r\n",

};

const

char VISIBLE_ITEMS = 14;

const

char *Bot_Commands[] = {

    "!help", "!join", "!leave",

    "!add", "!replace", "!delete",

    "!list", "!search", "!info",

    "!ping", "!on", "!off",

    "!debug", "!vaccuum", "!logout",

    "!who", "!whois", "!time", "!tell",

    "!op", NULL

};

char *parse (MSG * message)

{

    static char msg[513];

    int cmd = -1;

    int i;

    char *token;

    char *parameters;

    time_t t;

    struct tm *timeptr;

    static int counter = 0;

    /*

     * default message

     */

    snprintf (msg, 512, "PRIVMSG %s :%s.\r\n", message->channel, gettext ("Request cannot be performed"));

    /*

     * PRIVATE MESSAGES

     */

    if (!strcmp (message->channel, message->nick))

        message->channel = message->user;

    if (strstr (message->line, message->nick)) {

        if (*message->line != '!') {

            /*

             * DEAD - LOCK - CHECK

             */

            if (strcmp (message->user, message->nick)) {

                snprintf (msg, 512, "PRIVMSG %s :%s, %s?\r\n", message->channel, gettext ("What's up"), message->user);

                if (counter++ > 3)

                    return NULL;

                return msg;

            }

            /*

             * DEAD - LOCK - CHECK ENDS

             */

        }

        return NULL;

    }

    counter = 0;

    /*

     * NO BOT Commands

     */

    if (*message->line != '!') {

        return NULL;

    }

    i = 0;

    token = strtok (message->line, " ");

    while (Bot_Commands[i]) {

        if (!strcmp (token, Bot_Commands[i])) {

            switch (i) {

            case HELP:

                if ((token = strtok (NULL, "\r\n")))

                    cmd = atoi (token);

                if ((cmd > 0) && (cmd < VISIBLE_ITEMS))

                    snprintf (msg, 512, "PRIVMSG %s :%s\r\n", message->channel, COMMAND_LIST[cmd]);

                else

                    snprintf (msg, 512, "PRIVMSG %s :%s\r\n", message->channel, COMMAND_LIST[0]);

                return msg;

            case JOIN:

                if ((token = strtok (NULL, "\r\n")))

                    snprintf (msg, 512, "JOIN %s\r\n", token);

                return msg;

            case LEAVE:

                if (*message->channel != '#')

                    return NULL;

                snprintf (msg, 512, "PART %s :Leaving.\r\n", message->channel);

                return msg;

            case ADD:

                if ((token = strtok (NULL, " "))) {

                    if ((parameters = strtok (NULL, "\r\n"))) {

                        snprintf (msg, 512, "PRIVMSG %s :%s, %s\r\n",

                                  message->channel, message->user, db_insert (DATABASE_FILE, token, parameters, 0));

                    } else {

                        snprintf (msg, 512, "PRIVMSG %s :%s, %s!\r\n", message->channel,

                                  gettext ("I need more parameters to add"), message->user);

                    }

                }

                return msg;

            case REPLACE:

                if ((token = strtok (NULL, " "))) {

                    if ((parameters = strtok (NULL, "\r\n"))) {

                        snprintf (msg, 512, "PRIVMSG %s :%s, %s\r\n",

                                  message->channel, message->user, db_insert (DATABASE_FILE, token, parameters, 1));

                    } else {

                        snprintf (msg, 512, "PRIVMSG %s :%s, %s!\r\n", message->channel,

                                  gettext ("I need more parameters to replace"), message->user);

                    }

                }

                return msg;

            case DELETE:

                if ((token = strtok (NULL, "\r\n"))) {

                    snprintf (msg, 512, "PRIVMSG %s :%s, %s\r\n",

                              message->channel, message->user, db_remove (DATABASE_FILE, token));

                } else {

                    snprintf (msg, 512, "PRIVMSG %s :%s, %s!\r\n", message->channel, gettext ("I need a key to delete"),

                              message->user);

                }

                return msg;

            case LIST:

                snprintf (msg, 512, "PRIVMSG %s :%s %s\r\n", message->channel, db_elements (DATABASE_FILE),

                          db_lookup (DATABASE_FILE, "mcbot.cgi"));

                return msg;

            case SEARCH:

                if ((token = strtok (NULL, "\r\n"))) {

                    snprintf (msg, 512, "PRIVMSG %s :%s, %s\r\n", message->channel, message->user,

                              db_lookup (DATABASE_FILE, token));

                } else {

                    snprintf (msg, 512,

                              "PRIVMSG %s :%s, %s!\r\n", message->channel, gettext ("I need a key to lookup"),

                              message->user);

                }

                return msg;

            case INFO:

                snprintf (msg, 512, "PRIVMSG %s :I am MCBot-%1.2f and my source code can be found on %s\r\n",

                          message->channel, BOT_VERSION, SOURCE_URL);

                return msg;

            case PING:

                if ((token = strtok (NULL, "\r\n")))

                    snprintf (msg, 512, "PRIVMSG %s :PING 0815\r\n", token);

                return msg;

            case ON:

                snprintf (msg, 512, "PRIVMSG %s :%s %s.\r\n", message->user, gettext ("Autolearn enabled for channel"),

                          message->channel);

                return msg;

            case OFF:

                snprintf (msg, 512, "PRIVMSG %s :%s %s.\r\n", message->user, gettext ("Autolearn disabled for channel"),

                          message->channel);

                return msg;

            case DEBUG:

                snprintf (msg, 512, "PRIVMSG %s :USER: %s EMAIL: %s CHANNEL: %s LINE: %s\r\n", message->channel,

                          message->user, message->email, message->channel, message->line);

                return msg;

            case VACCUUM:

                snprintf (msg, 512, "PRIVMSG %s :%s\r\n", message->channel, db_vaccuum (DATABASE_FILE));

                return msg;

            case LOGOUT:

                if (strstr (message->user, db_lookup (DATABASE_FILE, "mcbot.user"))) {

                    if (strstr (message->email, db_lookup (DATABASE_FILE, "mcbot.email"))) {

                        snprintf (msg, 512, "PRIVMSG %s :%s!\r\nQUIT\r\n", message->channel,

                                  gettext ("Bye, have a nice day!"));

                    }

                }

                /*

                 * the returned message is either the default one or the generated one

                 */

                return msg;

            case WHO:

                if ((token = strtok (NULL, "\r\n")) != NULL) {

                    snprintf (msg, 512, "WHO %s\r\n", token);

                }

                return msg;

            case WHOIS:

                if ((token = strtok (NULL, "\r\n")) != NULL) {

                    snprintf (msg, 512, "WHOIS %s\r\n", token);

                }

                return msg;

            case TIME:

                t = time (NULL);

                timeptr = localtime (&t);

                if ((token = malloc (81))) {

                    strftime (token, 80, "%I:%M:%S %p", timeptr);

                    snprintf (msg, 512, "PRIVMSG %s :%s %s, %s!\r\n", message->channel, gettext ("It is"), token,

                              message->user);

                    free (token);

                }

                return msg;

            case TELL:

                if ((token = strtok (NULL, " "))) {

                    if ((parameters = strtok (NULL, "\r\n"))) {

                        if (*token == '*')

                            message->channel = ++token;

                        snprintf (msg, 512, "PRIVMSG %s :%s, %s\r\n", message->channel, token,

                                  db_lookup (DATABASE_FILE, parameters));

                    }

                }

                return msg;

            case OP:

                if ((token = strtok (NULL, "\r\n")) != NULL) {

                    if (strstr (message->email, db_lookup (DATABASE_FILE, "mcbot.email")))

                        snprintf (msg, 512, "MODE %s +o %s\r\n", message->channel, token);

                }

                return msg;

            }

        }

        i++;

    }

    return NULL;

}