How to make own "Condition" and "Action" in rule?

Drupal rules module provide by default events,conditions and action. But we want to create a custom components for additional functionality. Here I will tell you how to create Condition and Action.

Let's create a custom module and name the module as "hsk_rule".

hsk_rule.info
 
   name = Hsk Rule
   description = Hsk Custom Rules
   core = 7.x
   package = Hsk

hsk_rule.module

<?php

/**
 * implementation of hook_rules_condition_info()
 */
function hsk_rule_rules_condition_info() {
  return array(
    'hsk_rule_condition_competition_start_type' => array(
      'label' => t('Custom condition for node publish'),
      'group' => 'Custom Condition in Rule' ,
      'module' => 'hsk_rule',
    ),
  );
}

/**
 * Condition competition_start_condition_competition_start_type
 */

function hsk_rule_condition_competition_start_type($type) {
   $result = db_query('SELECT nid FROM node  WHERE  type = :type', array(':type' => 'competition_start'));
   foreach ($result as $rec) {

       $nodedata = node_load($rec->nid);
       $com_start =$nodedata->field_comp_start_date['und'][0]['countdown_timer'];

       $c= format_date(time(), 'custom', 'd-m-Y H:i:s');
       $current_date=strtotime($c);

       if($com_start <= $current_date) {
         return true;
       }
       else {
         return false;
       }
   }
}


/**
 * Implementation of hook_rules_action_info().
 */
function hsk_rule_rules_action_info() {
   return array(
      'hsk_rule_action_change_node_status' => array(
        'label' => t('Change the node status'),
        'module' => 'hsk_rule',
        'group' => 'Custom Action in Rule' ,
      'variables' => array(
        'competition_start' => array('type' => 'node', 'label' => t('The competition_start node.')),
      ),
        ),
   );
}

function hsk_rule_action_change_node_status() {
   $result = db_query('SELECT nid FROM node  WHERE  type = :type', array(':type' => 'competition'));
   foreach ($result as $rec) {
       $nodedata = node_load($rec->nid);
       $result1 = db_query('SELECT nid FROM node  WHERE  type = :type', array(':type' => 'competition_start'));
       foreach ($result1 as $com_st) {
           if(isset($nodedata->field_competition_reference['und'][0]['nid'])==$com_st->nid) {
             $nodedata->status =1;
             node_submit($nodedata);
             node_save($nodedata);
           }
       }
   }
}