<?php

$main = MediaListing_Main::instance();
$request = $main->request();
$session = $main->session();
$basket = $main->basket();
$messages = array();

if ($request->exists('do')) {
    $activity = $request->get('do');
    
    $redirect = MediaListing_Main::issetelse($_POST['redirect'], 'basket');

    switch ($activity) {
        case 'add-items': {
            try {
                $items = MediaListing_Main::issetelse($_POST['items'], 'Sihnon_Exception_InvalidParameters');
                
                $basket->addItems($items);
                
                $messages[] = array(
                    'severity' => 'success',
                    'content'  => 'The selected items were successfully added to the basket.',
                );
            } catch (SihnonFramework_Exception_InvalidParameters $e) {
                $messages[] = array(
                    'severity' => 'error',
                    'content'  => 'The selected items were not added to the basket due to invalid parameters being passed.',
                );
            }
        } break;
        
        case 'edit': {
            try {
                $remove_items = MediaListing_Main::issetelse($_POST['remove-items'], false);
                $clear_basket = MediaListing_Main::issetelse($_POST['clear'], false);
                
                if ($remove_items) {
                    $items = MediaListing_Main::issetelse($_POST['items'], 'Sihnon_Exception_InvalidParameters');
                
                    $basket->removeItems($items);
                
                    $messages[] = array(
                                    'severity' => 'success',
                                    'content'  => 'The selected items were successfully removed from the basket.',
                    );
                } else if ($clear_basket) {
                    $basket->clear();
                    $messages[] = array(
                        'severity' => 'success',
                        'content'  => 'The basket was successfully cleared.',
                    );
                } else {
                    $messages[] = array(
                        'severity' => 'error',
                        'content'  => 'The requested activity was not recognised.',
                    );
                }
            } catch (SihnonFramework_Exception_InvalidParameters $e) {
                $messages[] = array(
                    'severity' => 'error',
                    'content'  => 'The selected items were not removed from the basket due to invalid parameters being passed.',
                );
            }            
        } break;
        
        default: {
            $messages[] = array(
                'severity' => 'error',
                'content'  => 'The requested activity was not recognised.',
            );
        } break;
    } 
    
    $session->set('messages', $messages);
    MediaListing_Page::redirect($redirect);
}

$this->smarty->assign('basket', $basket);

?>