<?

function mm_custom_command_media_mover() {
  $items = array();
  
  $items['custom_command'] = array(
    'description' => t('Custom: Use custom command.'),
    'callback' => 'mm_custom_command_action',
    'configuration' => 'mm_custom_command_config',
  );
  $items['custom_php_command'] = array(
    'description' => t('Custom: Use custom PHP code.'),
    'callback' => 'mm_custom_command_php_action',
    'configuration' => 'mm_custom_command_php_config',
  );
  //all others needed? 
  
  return $items;
}


function mm_custom_command_config($step)  {
  //$verb = $step->settings['verb'];
  // set title for current action

  $form = array();
  $form['mm_custom_command_conf'] = array(
    '#type' => 'fieldset',
    '#title' => 'Custom Command Configuration',
    '#description' => t('This module runs custom command'),
  );

  $form['mm_custom_command_conf']['output_file'] = array(
    '#type' => 'textfield',
    '#title' => t('Output file'),
    '#description' => t('Define output file.'),
    '#default_value' => $step->settings['output_file'],
  );
  $form['mm_custom_command_conf']['command'] = array(
    '#type' => 'textfield',
    '#title' => t('Command'),
    '#description' => t("Define command for this action. If you want to use 'Output file' value from previous field use [output_file]."),
    '#default_value' => $step->settings['command'],
  );
  if (module_exists('token')) {
    $form['mm_custom_command_conf']['token_help'] = array(
      '#title' => t('Replacement patterns'),
      '#type' => 'fieldset',
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
    );
    $form['mm_custom_command_conf']['token_help']['help'] = array(
      '#value' => theme('token_help', 'mm_file'),
    );
  }

  return $form;
}

/**
 * Configuration for $verb php action
 */
function mm_custom_command_php_config($step) {

  $form = array();
  $form['mm_custom_command_conf'] = array(
    '#type' => 'fieldset',
    '#title' => 'Custom Command Configuration',
    '#description' => t('This module runs custom command'),
  );

  $form['mm_custom_command_conf']['output_file'] = array(
    '#type' => 'textfield',
    '#title' => t('Output file'),
    '#description' => t('Define output file.'),
    '#default_value' => $step->settings['output_file'],
  );
  $form['mm_custom_command_conf']['php'] = array(
    '#type' => 'textarea',
    '#title' => t('PHP code'),
    '#description' => t("Define PHP code. Do not use php tags. If you want to use 'Output file' value from previous field use \$output_file. You can also use \$file['harvest_file'], \$file['process_file'], \$file['storage_file']."),
    '#default_value' => $step->settings['php'],
  );
  if (module_exists('token')) {
    $form['mm_custom_command_conf']['token_help'] = array(
      '#title' => t('Replacement patterns'),
      '#type' => 'fieldset',
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
    );
    $form['mm_custom_command_conf']['token_help']['help'] = array(
      '#value' => theme('token_help', 'mm_file'),
    );
  }

  return $form;
}

/**
 * Run custom command
 */
function mm_custom_command_action($step, $file) {
  // replace tokens
  $output_file = token_replace($step->settings['output_file'], 'mm_file', $file);
  $command = token_replace($step->settings['command'], 'mm_file', $file);

  // change [output_file] to value from $output_file
  $command = str_replace('[output_file]', $output_file, $command);

  ob_start();
    passthru($command ." 2>&1", $command_return);
    $command_output = ob_get_contents();
  ob_end_clean();

  return $output_file;
}

/**
 * Run custom command
 */
function mm_custom_command_php_action($step, $file) {
  // replace tokens
  $output_file = token_replace($step->settings['output_file'], 'mm_file', $file);

  eval($command);
  return $output_file;
}