<?php

/**
 * @file
 * Multiple-user Asset Manager and Borrowing Ambient.
 */

/**
 * Definitions.
 */
define('MUAMBA_NODE_TYPE', 'muamba');
define('MUAMBA_REQUESTED', 0);
define('MUAMBA_ACCEPTED',  1);
define('MUAMBA_REJECTED',  2);
define('MUAMBA_CANCELLED', 3);
define('MUAMBA_RETURNED',  4);
define('MUAMBA_RECOVERED', 5);
define('MUAMBA_LOST',      6);

// Load requirements.
include_once('muamba.business.inc');
include_once('muamba.misc.inc');
include_once('muamba.db.inc');

/**
 * Implements hook_permission()
 */
function muamba_permission() {
  return array(
    'request item' => array(
      'title'       => t('Request an item'),
      'description' => t('Request an item to be borrowed or donated.'),
    ),
  );
}

/**
 * Implements hook_menu()
 */
function muamba_menu() {
  $items['muamba'] = array(
    'title'            => 'My items',
    'page callback'    => 'muamba',
    'access arguments' => array('access content'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/request'] = array(
    'title'            => 'Request an item',
    'page callback'    => 'muamba_request',
    'access arguments' => array('request item'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/accept'] = array(
    'title'            => 'Accept an item request',
    'page callback'    => 'muamba_accept',
    'access arguments' => array('access content'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/reject'] = array(
    'title'            => 'Reject an item request',
    'page callback'    => 'muamba_reject',
    'access arguments' => array('access content'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/cancel'] = array(
    'title'            => 'Cancel a request',
    'page callback'    => 'muamba_cancel',
    'access arguments' => array('access content'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/recover'] = array(
    'title'            => 'Recover an item',
    'page callback'    => 'muamba_recover',
    'access arguments' => array('recover item'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/return'] = array(
    'title'            => 'Return an item',
    'page callback'    => 'muamba_return',
    'access arguments' => array('access content'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  $items['muamba/lost'] = array(
    'title'            => 'Report a lost item',
    'page callback'    => 'muamba_lost',
    'access arguments' => array('access content'),
    'type'             => MENU_SUGGESTED_ITEM,
    'file'             => 'muamba.business.inc',
  );

  return $items;
}

/**
 * Implements hook_node_view()
 */
function muamba_node_view($node, $view_mode, $langcode) {
  global $user;

  // Check if widget can be shown
  if ($node->uid == $user->uid || $node->type != MUAMBA_NODE_TYPE || !muamba_has_request_access($node)) {
    return;
  }

  if ($view_mode == 'full') {
    $transaction             = muamba_current_transaction($node);
    $node->content['muamba'] = array(
      '#markup' => theme('muamba_widget', array('nid' => $node->nid, 'transaction' => $transaction)),
      '#weight' => 100,
    );

    return $node;
  }
}

/**
 * Implements hook_theme()
 */
function muamba_theme($existing, $type, $theme, $path) {
  return array(
    'muamba_widget' => array(
      'template'  => 'muamba-widget',
      'variables' => array(
        'nid'         => NULL,
        'transaction' => NULL, 
      ),
    ),
    'muamba_powered' => array(
      'template' => 'muamba-powered',
    ),
    'muamba_transactions' => array(
      'variables' => array(
        'transactions' => NULL,
        'type'         => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_colorbox_link' => array(
      'variables' => array(
        'path' => NULL,
        'text' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_request_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_accept_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_reject_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_cancel_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_return_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_recover_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
    'muamba_lost_message' => array(
      'variables' => array(
        'transaction' => NULL,
      ),
      'file' => 'muamba.theme.inc',
    ),
  );
}

/**
 * Implements hook_block_info()
 */
function muamba_block_info() {
  $blocks['muamba_powered'] = array(
    'info'   => t('Muamba powered'),
    'cache'  => DRUPAL_NO_CACHE,
    'status' => TRUE,
    'region' => 'footer',
  );

  return $blocks;
}

/**
 * Implements hook_block_view()
 */
function muamba_block_view($delta = '') {
  $block = array();

  switch ($delta) {
    case 'muamba_powered':
      $block['subject'] = NULL;
      $block['content'] = theme('muamba_powered');
      break;
    
  }
  return $block;
}

/**
 * Implements hook_privatemsg_view_alter()
 *
 * @todo
 */
function muamba_privatemsg_view_alter(&$content) {
  $bar = 'TODO: Add here request management bar.';
  $content['participants']['#markup'] = $bar . $content['participants']['#markup'];
}

/**
 * Implements hook_node_delete()
 */
function muamba_node_delete($node) {
  db_delete('muamba')
    ->condition('nid', $node->nid)
    ->execute();
}

/**
 * Implements hook_user_delete()
 */
function muamba_user_delete($account) {
  db_delete('muamba')
    ->condition('uid', $account->uid)
    ->execute();

  db_delete('muamba')
    ->condition('owner', $account->uid)
    ->execute();
}